Download 270216 - Service Manual (3rd edition)

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Transcript 
Index
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Opening and Keyboard Disassembling Instructions & NOTICE
Layout SK760
Layout SK880
Assembly & Wiring Connections SK760 (TRF version)
Assembly & Wiring Connections SK760 (SWT version)
Assembly & Wiring Connections SK880 (TRF version)
Assembly & Wiring Connections SK880 (SWT version)
Block Diagram (TRF and SWT versions)
Power Supply (TRF Version), Phones, Midi & Controls I/O and
Analog I/O Board Schematics
Power Supply (TRF Version), Phones and Midi & Controls I/O
Pcb Layouts
Mixer Board (SWT Version) Schematic and Pcb Layout
Timings Table
76 Notes L/R Contact and Keyboard Interface Board Schematics
88 Notes L/R Contact and Keyboard Interface Board Schematics
Controls Interface & Controls Panel Board (TRF) Schematics
Controls Interface & Controls Panel Board (TRF) Pcb Layout
18
19
20
21
22
23
24
25
26
27
28
Controls Interface & Controls Panel Board (SWT) Schematics
Controls Interface & Controls Panel Board (TRF) Pcb Layout
Cpu & Sound Generator Schematic (Part 1/2)
Cpu & Sound Generator Schematic (Part 2/2)
Cpu & Sound Generator Pcb Layout
Cpu & Sound Generator Map
A/V Interface Board Schematic (Optional Accessory)
A/V Interface with Vocal Processor Board Schematic
(Optional Accessory)
A/V Interface and Vocal Processor Board Pcb Layouts
Test & Adjustment Procedure
Spare Part List
NOTE: The SK series is manufctured in two versions:
The TRF version has a traditional supply (transformer and power supply board with mixer).
The SWT version has a switching supply (switching unit and mixer board).
All the specifications remain the same, unless the mains voltage:
The TRF version has two nominal mains voltages 115Vac-60Hz
for U.S.A. or 230Vac-50Hz for CEE & other countries.
The SWT version accept all mains voltages into the range of
100-230Vac and 50-60Hz.
FOURTH EDITION APRIL 2000
Warnings
SERVICE MANUAL
Notice
Service must be carried out by qualified personnel only.Any tampering carried out by unqualified personnel during the guarantee period
will forfeit the right to guarantee.
For a correct operation of the instrument, after having switched off, be careful to wait at least 3 seconds before switching on again.
To improve the device's specifications, the schematic diagrams may be subject to change without prior notice.
All components marked by this symbol have special safety characteristics, when replacing any of these components use only
manufacturer's specified parts.
The (µ) micro symbol of capacitance value is substituted by U.
The (Ω) omega symbol of resistance value is substituted by E.
The electrolytic capacitors are 25Vdc rated voltage unless otherwise specified.
All resistors are 1/8Ω unless otherwise specified.
All switches shown in the "OFF" position. All DC voltages measured to ground with a voltmeter 20KOhm/V.
Soldering point.
Supply voltage.
Logic supply ground.
Male connector.
Test point.
Analog supply ground.
Female connector.
M/F faston connector.
Flag joined with one or more flags
Chassis ground.
with the same signal name inscribed.
Earth ground.
ATTENTION
Observe precautions when handling electrostatic sensitive devices.
Address
L CODE: 270216 M
GENERALMUSIC S.p.A. Sales Division: 47842 S.Giovanni in Marignano (RN) ITALY - Via delle Rose, 12 - tel. 0541/959511 - fax 0541/957404
GENERALMUSIC on the NET: http://www.generalmusic.com
1J
Opening Instructions
K2
K2
K2
K2
K2
K2
K2
K2
K1
K1
K1
K1
K1
K1
K1
K1
Disconnect the instrument from the mains.
Carefully turn the instrument over and unscrew the screws
marked with the arrows.
Hold the chassis (top & bottom) tightly and turn the istrument the right way up, lift off the top chassis as shown
below with care without forcing or disconnecting the cables.
Keyboard Separation
(open the instrument before proceed)
To separate the keyboard from chassis, carefully turn the
bottom chassis from horizontal to vertical, remove the
K1 , put it back horizontal, holding
screws marked by
top & bottom chassis move these tightly to the end of your
K2
job table, now unscrew the screws marked with
to reassemble the keyboard & the chassis follow the instructions in reverse order.
SK760
SK880
K2
K2
K2
K1
Keyboard Disassembling Instructions
TP9 (SK760)
K2
K1
K1
TP10 (SK880)
Remove the key return spring
2
K2
Remove the key return spring.
Unlock the key appling not much strength
NOTE: To remove a sharp key before you must remove the near natural keys.
3
1
Unlock the key appling not much strenght
Note: To remove a sharp key before
you must remove a near natural key.
J2
DRW Boccato
DWG# 550168
PCB#
GENERALMUSIC S.p.A. ITALY
CKD Riccobelli
DISK: 5 PRT: 1/1
Opening Instructions
Keyboard Disassembling Instructions
APP. Pannelli
REV: 30/01/99
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
1
3
2
5
4
13 13 13 13 19 17 16 16 16 16 16 16
18
4
8
8
23
22
20
21
43 44 45 46 47 48 49 50 52
28
24
26
25
37
6
15 14 13 13 13 13 13 12 11 11
38
29
39
27
30
31
32
33
18
7
10
34
9
8
35
1
36
51 49
DRW Boccato
DWG# 550169
PCB#
GENERALMUSIC S.p.A. ITALY
CKD Riccobelli
DISK: 5 PRT: 1/1
APP. Pannelli
REV: 18/02/99
SK760 Layout
for descriptions see the REF column
on Spare Part List further on this manual.
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
3J
53
3
2
54
13 13 13 13 19 17 16 16 16 16 16 16
56
54
57 60
J4
23
22
61 62 63 64 65 66 67 69
20
42
21
28
24
26
25
37
55
6
15 14 13 13 13 13 13 12 11 11
38
29
39
27
30
31
32
33
36
56
7
10
34
9
8
35
53
59
68 40
DRW Boccato
DWG# 550170
PCB#
GENERALMUSIC S.p.A. ITALY
CKD Riccobelli
DISK: 5 PRT: 1/1
APP. Pannelli
REV: 18/02/99
SK880 Layout
for descriptions see the REF column
on Spare Part List further on this manual.
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
72
MOD. ADJ
70
PITCH ADJ
71
73
38
75
74
76
77
72
41
99
CN4
40
98
CN1
CN1
VR12
CN6
TO DISPLAY
97
CN3
Pcb#315113
VR11
VR101
CN2
CN5
CN3
CN4
CN2
CN6
CN5
Pcb#315112
TO DISPLAY
7
8
10
6
84
83 26 37
82
81
80
3
79
78
Pcb#315149
CN1
CN11
CN1
Pcb#315088
Pcb#315163
18
85
86
87
88
89
LCD ADJ
CN9
CN3
CN3
CN4
CN2
CN6
CN2
CN6
8MB DRAM
CN5
CN1
2MB DRAM
CN2
CN4
SIMM18
Pcb#315092/1
CN1
CN7
CN7
CN16
SIMM17
CN5
Pcb#315116
Pcb#315014
1
93 92
CN12
CN1
CN8
AFTER TOUCH
ADJ
90 91 93 92
CN8
CN4
2MB DRAM
CN10
VR1
CN3
CN11
CN15 Pcb#315150
VR1
CN13
CN6
CN7
TO R CONTACTS BOARD
TO L CONTACTS BOARD
96
Pcb#315114
CN3
CN4
CN5
Pcb#315024
CN1
CN1
AFTER
TOUCH
CN6
Pcb#315118
CN1
DRW BOCCATO
DWG# 550171
PCB#
GENERALMUSIC S.p.A. ITALY
CKD RICCOBELLI
DISK: 5 PRT: 1/1
APP. PANNELLI
REV: 22/02/99
SK760 ASSEMBLY
for descriptions see REF column
on Spare Part List further on this manual.
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
5J
70
MOD. ADJ
PITCH ADJ
71
73
38
75
74
113
77
72
41
99
CN4
40
98
CN1
CN1
VR12
CN6
TO DISPLAY
97
CN3
Pcb#315113
VR11
VR101
CN2
CN5
CN3
CN4
CN2
CN6
CN5
Pcb#315169
TO DISPLAY
7
8
103
10
6
84
83 26 37
82
81
80
3
78
79
Pcb#315149
CN1
CN11
CN1
Pcb#315088
Pcb#315163
18
100
101 102
89
LCD ADJ
AFTER TOUCH
ADJ
90 91 93 92
1
93 92
CN12
CN8
CN4
CN7
CN3
CN4
CN2
CN6
CN1
8MB DRAM
CN5
CN1
2MB DRAM
CN2
SIMM18
Pcb#315092/1
TB1
CN3
TB2
CN2
CN1
CN7
CN5
Pcb#315151
Pcb#850-9541-M
CN16
SIMM17
CN6
CN8
CN4
2MB DRAM
VR1
CN10
CN3
CN11
CN15 Pcb#315150
VR1
CN13
CN6
CN7
TO R CONTACTS BOARD
TO L CONTACTS BOARD
96
Pcb#315114
CN5
Pcb#315024
CN3
CN1
CN1
AFTER
TOUCH
CN6
CN4
Pcb#315118
CN1
J6
DRW BOCCATO
DWG# 550172
PCB#
GENERALMUSIC S.p.A. ITALY
CKD RICCOBELLI
DISK: 5 PRT: 1/1
APP. PANNELLI
REV: 22/02/99
SK760 (SWT) ASSEMBLY
for descriptions see REF column
on Spare Part List further on this manual.
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
57 105
70
PITCH ADJ 106
MOD. ADJ
107
73
38
75
74
76
77
108
59
97
109 105 40
CN4
CN1
CN1
VR12
CN6
TO DISPLAY
CN3
Pcb#315113
VR11
VR101
CN2
CN5
CN3
CN4
CN2
CN5
CN6
Pcb#315112
TO DISPLAY
7
8
10
6
83 26 37
84
82
81
80
3
79
78
Pcb#315149
Pcb#315163
CN1
CN11
CN1
Pcb#315088
56
112
85
86
87
88
89
LCD ADJ
AFTER TOUCH
111
ADJ
90 91 93 92
110
53
CN9
CN12
CN1
CN3
CN2
CN6
CN8
CN3
CN4
CN2
CN6
CN4
8MB DRAM
CN5
CN1
2MB DRAM
CN2
SIMM18
CN1
Pcb#315014
Pcb#315116
Pcb#315092/1
CN7
CN7
CN16
SIMM17
CN5
CN8
CN4
2MB DRAM
CN10
VR1
CN3
CN11
CN15 Pcb#315150
VR1
CN13
CN
CN6
TO R CONTACTS BOARD
CN7
CN3
CN
CN5
CN4
Pcb#315024
CN1
CN
Pcb#315119
AFTER TOUCH
SHARP KEYS
Pcb#315123
TO L CONTACTS BOARD
AFTER TOUCH
NATURAL KEYS
DRW BOCCATO
DWG# 550173
PCB#
GENERALMUSIC S.p.A. ITALY
CKD RICCOBELLI
DISK: 5 PRT: 1/1
APP. PANNELLI
REV: 23/02/99
SK880 (TRF) ASSEMBLY
for descriptions see REF column
on Spare Part List further on this manual.
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
7J
57 105
70
PITCH ADJ 106
MOD. ADJ
107
73
38
75
74
108
113
77
59
97
109 105 40
CN4
CN1
CN1
VR12
CN6
TO DISPLAY
CN3
Pcb#315113
VR11
VR101
CN2
CN5
CN3
CN4
CN2
CN5
CN6
Pcb#315169
TO DISPLAY
7
8
103
84
6
10
83 26 37
82
81
80
3
78
79
Pcb#315149
Pcb#315163
CN11
CN1
CN1
Pcb#315088
56
112
100
101
102
LCD ADJ
89
AFTER TOUCH
ADJ
90 91 93 92
110
111
53
CN12
CN1
CN6
CN8
CN4
CN7
CN3
CN4
CN2
8MB DRAM
CN5
CN1
2MB DRAM
CN2
CN6
SIMM18
Pcb#315092/1
TB1
CN2
CN1
Pcb#315151
CN7
TB2
CN3
CN5
Pcb#850-9541-M
CN16
SIMM17
CN8
CN4
2MB DRAM
CN10
VR1
CN3
CN11
CN15 Pcb#315150
VR1
CN13
CN
CN6
TO R CONTACTS BOARD
CN7
CN3
CN
CN5
CN4
Pcb#315024
CN1
CN
Pcb#315119
AFTER TOUCH
SHARP KEYS
Pcb#315123
TO L CONTACTS BOARD
AFTER TOUCH
NATURAL KEYS
J8
DRW BOCCATO
DWG# 550174
PCB#
GENERALMUSIC S.p.A. ITALY
CKD RICCOBELLI
DISK: 5 PRT: 1/1
APP. PANNELLI
REV: 23/02/99
SK880 (SWT) ASSEMBLY
for descriptions see REF column
on Spare Part List further on this manual.
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
DRW G. Boccato
DWG# 550175
PCB#
GENERALMUSIC S.p.A. ITALY
DRW G. Boccato
DWG# 550176
PCB#
GENERALMUSIC S.p.A. ITALY
CKD N. Riccobelli
DISK:5 PART:1/1
SK760 - SK880 (TRF)
BLOCK DIAGRAM
CKD N. Riccobelli
DISK:5 PART:1/1
SK760 - SK880 (SWT)
BLOCK DIAGRAM
APP. G. Pannelli
REV: 25/02/99
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
APP. G. Pannelli
REV: 25/02/99
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
9J
J 10
CONTROLS & MIDI I/O BOARD (PCB# 315088)
PHONES BOARD (PCB# 315118)
PHONES BOARD (PCB# 315123)
POWER SUPPLY BOARD (PCB# 315116) TRF version
DRW: BOCCATO
DWG: 315088/315116
315118 / 315123
CKD: RICCOBELLI
DISK: 5 PART: 1/1
APP: PANNELLI
REV: 25-02-99
SCHEMATIC DIAGRAM
SK760/880
Power Supply (TRF), Phones and Controls
& MIDI I/O Board Pcb Layouts
GENERALMUSIC S.p.A. Italy
ALL RIGHTS ARE RESERVED, NO COPIES OR
REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
11 J
MIXER BOARD (PCB# 315151-2) SWT version.
ANALOG I/O BOARD (PCB# 315117).
J 12
DRW: BOCCATO
DWG: 315151/315117
SCHEMATIC DIAGRAM
CKD: RICCOBELLI
DISK: 5 PART: 1/1
APP: PANNELLI
REV: 25-02-99
Mixer Board and Analog I/O Board Pcb
Layouts
SK760/880
GENERALMUSIC S.p.A. Italy
ALL RIGHTS ARE RESERVED, NO COPIES OR
REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
13 J
810557
44N RIGHT CONTACTS
BOARD
4148
4148
G
F#
4148
4148
F
4148
4148
4148
4148
E
D#
4148
4148
4148
4148
D
C#
4148
4148
C
4148
4148
4148
4148
B
A#
4148
4148
4148
4148
A
G#
4148
4148
4148
4148
G
F#
4148
4148
4148
4148
4148
4148
F
E
D#
4148
4148
4148
4148
D
C#
4148
4148
C
4148
4148
4148
4148
B
A#
4148
4148
4148
4148
A
G#
4148
4148
4148
4148
G
F#
4148
4148
4148
4148
4148
4148
F
E
D#
4148
4148
4148
4148
D
C#
4148
4148
C
4148
4148
4148
4148
B
A#
4148
4148
4148
4148
A
G#
4148
4148
4148
4148
G
F#
4148
4148
4148
4148
4148
4148
F
E
D#
4148
4148
D
4148
4148
4148
4148
4148
4148
C
C#
(76NOTES DYNAMIC KEYBOARD)
RIGHT KEYBOARD
ADDR & DATA BUS
TO KEYBOARD INTERFACE
BOARD CN3
CN1
KD0
2
KD1
4
KD2
6
KD3
8
KD4 10
KD5 12
KD6 14
KD7 16
BR10 18
OCTAVE 4
OCTAVE 5
OCTAVE 6
OCTAVE 7
MK10 20
1
MK5
3
BR5
5
MK6
7
BR6
9
MK7
11 BR7
13 MK8
15 BR8
17 MK9
19 BR9
PCB# 310566
810556
32N LEFT CONTACTS
BOARD
B
A#
A
G#
G
F#
F
E
D#
D
C#
C
B
A#
A
G#
G
F#
F
E
D#
D
C#
C
B
A#
A
G#
G
LEFT KEYBOARD
ADDR & DATA BUS
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
4148
F
4148
4148
4148
E
F#
(76NOTES DYNAMIC KEYBOARD)
TO KEYBOARD INTERFACE BOARD CN4
CN1
KD0
2
KD1
4
KD2
6
KD3
8
KD4 10
KD5 12
KD6 14
KD7 16
OCTAVE 1
OCTAVE 2
1
MK0
3
BR0
5
MK1
7
BR1
9
MK2
11 BR2
13 MK3
15 BR3
OCTAVE 3
PCB# 310565
+5V
58
59
D3/P3,3
60
26
P7,4/AN4
D4/P3,4
61
27
P7,5/AN5
D5/P3,5
62
28
P7,6/AN6
D6/P3,6
63
29
P7,7/AN7
D7/P3,7
64
1 P4,0/ADTRG//IRQ2
2 P4,1/IRQ1
A0/P1,0
56
R1 47E
BR0
8
A1/P1,1
55
R2 47E
MK0
9
3 P4,2/IRQ0
4 P4,3/RD
A2/P1,2
54
R3 47E
BR1
6
A3/P1,3
53
R4 47E
MK1
7
5 P4,4/WR
6 P4,5/AS
A4/P1,4
52
R5 47E
BR2
4
A5/P1,5
51
R6 47E
MK2
5
A6/P1,6
50
R7 47E
BR3
2
A7/P1,7
49
R11 47E
MK3
A8/P2,0
47
R14
47E
BR4
R37
FL5R
9 P5,0/TXD
10 P5,1/RXD
10
8
9
11
IC1-C
74HC125
5
6
6 AT
IC1-B
74HC125
100E
NMI
15
STBY
17
XTAL
18
EXTAL
10K
R49
R47
14
IC1-E
74HC125
7
C1 100N
21
C9 100N
C2 100N
C4 100N
C7 1U
C6 100N
FROM CPU & SOUND
GENERATOR BOARD CN11
KEYBOARD SUPPLY
1
16 48
RES
13
+5V
XT1
20MHZ
+5V
30
IC2-C
VALIS100740
12
4
R45 1M
14 39
IC2-B
VALIS100740
P5,2/SCK
1
4
3
6
5
8 10 12 14 16
7
9 11 13 15
CN3
FROM 44 CONTACTS
RIGHT BOARD CN1
LEFT KEYBOARD
ADDR & DATA BUS
10K
R12
R9 10K
2
2
1
4
3
6
1
5
8 10 12 14 16 18 20
7
9 11 13 15 17 19
3
A9/P2,1
46
R15
47E
MK4
9
45
R16
47E
BR5
6
A11/P2,3
44
R17
47E
MK5
7
A12/P2,4
43
R18
47E
BR6
4
A13/P2,5
42
R19
47E
MK6
5
A14/P2,6
41
R20
47E
BR7
2
A15/P2,7
40
R21
47E
MK7
TMCI0/FTCI/P6,0
31
R46
47E
BR8
FTOA/P6,1
3
32
R48
47E
MK8
2
FTIA/P6,2
33
R27
47E
BR9
9
34
R28
47E
MK9
8
R29
47E
BR10
7
R30
47E
MK10
6
R31
47E
R32
47E
TMO0/FTIC/P6,4
20
MD0
TMCI1/FTID/P6,5
36
19
MD1
TMRI1/FTOB/P6,6
37
TMO1/P6,7
38
5
4
3
1
2
1
AC1 220P X8
3
TMRI0/FTIB/P6,3
35
1
AC2 220P X8
8
A10/P2,2
2K2
R44 FL5R
5 RXD3
5
7 P4,6/CLK0
8 P4,7/WAIT
2K2
4 RSTV
2
R52
FL5R
3
+5V
R24
5
CN4
2K2
FL5R
R35
2
D2/P3,2
R23
R34
3 GET
KD7
D1/P3,1
2K2
2 NEXT
3
P7,3/AN3
R53
FL5R
4
KD6
P7,2/AN2
4
4
5
KD5
P7,1/AN1
1
3
6
KD4
25
AR3
10K X4
2
7
KD3
24
AR4
10K X4
10K
R38
10K
R36
R33
C8 100N
KEYBOARD
FROM/TO CPU & SOUND
GENERATOR BOARD CN5
1 TXD3
IC1-A
74HC125
1
3
2
8
KD2
23
+5V
1
+5V +5V
KD1
VALIS100740
AR1
2K2 X4
2
AC3 470P X8
9
KD0
57
13
4
2
D0/P3,0
IC1-D 74HC125
12
11
3
3
P7,0/AN0
R51 10K
2
4
22
100E
CPU H8/329
1
2
R25
PCB# 315114
CN6
5
10K
1
IC2-A
TR2
BC 560
4
CN7
6
TR1
BC 560
C5 1U
3
7
R26
2
8
+5V
CN1
1
9
AR2 10K X8
RIGHT KEYBOARD
ADDR & DATA BUS
730680
CONNECTION
BOARD
1
FROM 32 CONTACTS
LEFT BOARD CN1
+5V
C3 100N
AFTER TOUCH
RUBBER STRIP
761137
KEYBOARD INTERFACE BOARD
(SK760 Model)
1
5
4
AC5 220P X8
Pcb# 315024
DRW BOCCATO
CKD
RICCOBELLI
APP. PANNELLI
J 14
DWG# 550180
DSK# 5
REV:
PART: 1/1
22/02/99
PCB#
310565
310566
SCHEMATIC DIAGRAM
315024
SK760
CONTACTS BOARD & KEYBOARD
INTEFACE BOARD
GENERALMUSIC S.p.A. ITALY
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
15 J
R49
C33 100P
C37 820P
C38 820P
C34 100P
1
4
1
4
1
4
1
4
1
4
1
4
1
4
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
6/SOUND
0/PRELOAD
+/DISK
D1
3
2
3
2
SW99
SW101
3
2
SW94
3
2
SW89
3
2
SW80
SW75
3
2
D3
-/DEMO
D6
PLAY
STOP
SONG
D4
D2
D0
1
4
SW68
3
2
SW59
3
2
D5
STYLE
REAL TIME
5/T. SPLITS
9/GENERAL
SW93
SW88
D1
D3
D5
SCORE
8/OPTION
7/ST/SONG
D7
D6
D4
SW79
3
2
SW92
RECORD ST/SONG
D2
SW74
3
2
1
4
1
4
1
4
1
4
1
4
1
4
1
4
1
4
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
A8
A11
A15
SW67
SW58
SW87
SW98
D0
4/CNT/PADS
3/MIXER
D1
D3
2/MIDI
1/EFFECTS
SW91
SW86
SW78
SW69
D5
KEY PAD
D7
D.HOLD
D6
D4
D2
HELP
UNDO
SW63
SW73
D1
D0
D3
3
2
D1
1
4
1
4
1
4
D1 USER 4
D3 USER 3
D5 LATIN 2
4
1
SW35
4
1
SW30
2
3
2
3
2
3
2
3
A7
A6
SW55
SW56
D2
D0
1
4
R50
560E
R51
DL68
560E
VOL.MIN
VOL.MAX
DIAL
SOLO
STORE PERF.
560E
R46
DL60
3
2
1
4
D2
1
4
D0
560E
DL62
R47
560E
560E
R42
R41
3
2
DIAL
SINGLE
TCH PLAY
EFF.BYPASS
P.GROUPS 8 D3
1
4
DL47
DL45
3
2
SW54
SW57
SW50
SW48
560E
R34
DL34
3
2
1
4
P.GROUPS 7 D5
HARMONY
ON/OFF
P.GROUPS 6 D7
560E
R31
DL24
3
2
1
4
BASS TO
LOWEST
MIXER LOCK
TEMPO LOCK
560E
560E
R28
DL16
R22
3
2
1
4
P.GROUPS 5 D2
1
4
SONG.P D6
ARR.ON/OFF
560E
DL7
R26
560E
R27
3
2
SW46
SW44
SW42
SW39
ARR.MEMORY
LOW. MEMORY
START/STOP D4
1
4
DL5
DL14
3
2
DL67
A10
ARR. MODE
560E
R30
DL22
R33
560E
FILL
560E
3
2
1
4
ESCAPE D1
1
4
INTRO D0
1
4
DL32
R43
3
2
SW52
3
2
SW37
SW49
P.GROUPS 4 D3
FILL
DL50
DL55
R44
560E
FILL
560E
560E
5 6
3
2
1
4
P.GROUPS 3 D5
1
4
VAR 4
FADE I/O
VAR 1
560E
560E
R18
3 4
3
2
SW47
1
4
P.GROUPS 2 D7
1
4
R25
DL10
4
1
SW27
SW23
4
1
A1
1
4
D7 LATIN 1
TRANSP #
TRANSP b
D6 TRAD 2
3
2
SW20
SW5
SW105
SW104
D4 TRAD 1
3
2
SW15
3
2
SW10
3
2
1
4
1
4
D3
OCTAVE +
OCTAVE -
D2 US.TRAD
D0 JAZZ
D1 USER 2
3
2
1
4
1
4
D5
1
4
D7
PAD 4
D6
1
4
SW34
1
4
SW97
SW90
SW81
SW72
D4
D2
PAD 3
D3 USER 1
D5 DANCE 2
1
4
1
4
3
2
SW29
SW26
1
4
3
2
SW45
SW43
3
2
P.GROUPS 1 D2
1
4
VAR 2
VAR 3
560E
560E
R32
DL19
DL28
R29
START
STOP
220E
DL78
3
2
ST.LOCK D6
1
4
ENDING D4
1
4
R61
220E
R58
3
2
SW41
SW40
SW51
1
4
TRANSP b
FILL
FILL
TRANSP #
3
2
ENTER D1
1
4
560E
560E
ST.LOCK
3
2
KEY START D0
1
4
3
2
SW22
1
4
1
4
PAD 2
D0
PAD 1
D7 DANCE 1
FUNK
D6
3
2
SW19
3
2
A9
SW38
SW36
3
2
D1
1
4
D3
1
4
560E
1
4
SW31
SW28
SW21
1
4
D5
1
4
1
4
1
4
SFX D1
PERC. D3
D4 ROCK
1
4
SW66
SW62
A14
1
4
1
4
3
2
SW14
3
2
SW9
1
4
SW103
SW96
D2 16 BEAT
3
2
SW4
1
4
1
4
ETHNIC D5
D7
D0 8 BEAT
D4 STORE PERF.
SYL SFX
SYL PAD
D6
1
4
A5
1
4
SW85
SW83
SW77
SYN LD. D4
D2 SINGLE
TCH PLAY
3
2
SW33
SW25
REED D0
SW18
1
4
A3
3
2
1
4
A0
3
2
SW71
A12
SW65
3
2
PIPE D2
D0 HARMONY
ON/OFF
3
2
SW13
SW8
SW3
D4 BASS TO
LOWEST
SW61
SW102
BRASS D1
ENSEMB D3
D2 MIXER LOCK
D0 TEMPO LOCK
D1 SOLO
SW32
SW24
SW17
SW95
SW84
STRINGS D5
BASS D7
D5 EFFECTS BYPASS
D6 ARRANGE MODE
D4 LOWER MEMORY
GUITAR D6
ORGAN D4
PIPE D2
D2 ARRANGE MEMORY
SW12
SW7
SW82
SW76
SW70
SW64
SW60
A0
PIANO D0
3
2
3
2
1
4
5
6
10 11 12 13
3
8 CP
1K
+5V
SHIFT REGISTER
IC9-A
5
6
10 11 12 13
Q1Q2 Q3 Q4 Q5 Q6 Q7 Q8
1 A
R55
8bit Sin Pout
MR 9
2 B
8 CP
74HC164
4
1K
+5V
SHIFT REGISTER
IC5-A
3
Q1Q2 Q3 Q4 Q5 Q6 Q7 Q8
1 A
8bit Sin Pout
MR 9
2 B
8 CP
74HC164
10 11 12 13
R40
1K
5
6
10 11 12 13
+5V
Q1Q2 Q3 Q4 Q5 Q6 Q7 Q8
1 A
8bit Sin Pout
MR 9
2 B
+5V
SHIFT REGISTER
IC3-A
4
8 CP
74HC164
SHIFT REGISTER
IC2-A
3
4
5
6
1K
4
10 11 12 13
Q1Q2 Q3 Q4 Q5 Q6 Q7 Q8
1 A
8bit Sin Pout
MR 9
2 B
SHIFT REGISTER
8 CP
74HC164
IC4-A
74HC164
470E
7
3
R15
1K
R20
8K2 2
-
1
10K
C7 100N
R19
5K6
7
100N
G.BOCCATO
DWG# 550182
CKD
RICCOBELLI
DSK# 5
APP.
PANNELLI
REV:
PART: 1/1
25/02/99
CHASSIS
GROUND S1
8
IC1-C
TL072
4
PCB# 315112
-12V
DRW
PITCH BENDER
-12V
C4
+12V
C5 100N
14
IC2-B
74HC164
R11
R10
10K
+
6
10KB
-
MODULATION
5
10KB
R3 10K
7
6
D1
+
5
C8 100N
100N
14
IC3-B
74HC164
C15
7
100N
14
IC4-B
74HC164
C17
7
100N
14
IC7-C
74HC74
C20
7
100N
14
IC6-C
74HC74
C32
7
100N
100N
14
IC5-B
74HC164
C31
7
C25
100N
C39
100N
C36
7
14
IC9-B
74HC164
8
R13 1K
MOD. CENTER ADJ.
R14 47K
VR12 22K
7
C6 100N
C22 100N
100N
100N
C21
C19
100N
100N
C18
C16
100N
C14
100N
C13
100N
100N
C11
C10
DL107
DL115
R75
14
IC8-E
74HC86
9
8K2
4
IC1-B TL072
R9 1K
R8 1K
10U
470E
1K
R6
R16 1K
+5V
TR2
BC
173C
100N
R17
R7
C2 100N
D2 4148
1
R5 5K6
C3 100N
4148
10KB
VR10
2
+12V
C1 100N
3
2
+12V
C9 100N
UPPER 1
VR9 10KB
VR8 10KB
UPPER 2
LOWER 1
LOWER 2
VR7 10KB
VR6 10KB
ACC 4/6
VR5 10KB
ACC 1/3
VR4 10KB
VR3 10KB
BASS
DRUMS
VR2 10KB
M.VOL.
10U
C24 10U
VR1 10KB
5
4
CN1
3
1
7
6
C28
DL2
DL11
DL37
DL41
DL51
DL27
DL123
330E
DL130
R23
DL129
DL8
DL17
DL25
DL35
DL39
-30V
IC1-A TL072
R2 1K
R4 10K
R1 1K
470E
470E
DL122
R79
DL57
DL66
470E
+5V
TR1
BC
173C
+5V
DL114
DL9
DL18
DL26
DL36
DL40
DL49
DL54
R24
8
PITCH CENTER ADJ.
VR11 22K
47K
R12
9
470E
-30V
470E
11
10
100N
DL33
DL23
DL15
DL6
DL4
DL13
DL21
R36
13
12
VOLUMES
470E
15
14
TO CONTROLS PANEL INT. BOARD CN2
DL109
DL113
DL120
DL131
DL144
DL149
R82
+5V
-12V
CN2
16
MC/LINE
+12V
C29
R54
DL48
330E
3
2
SEQUENCER
+12V
470E
DL31
DL103
DL105
DL112
DL116
DL121
DL128
330E
-30V
R77
DL160
DL3
DL12
DL20
DL29
DL30
DL42
DL43
DL52
DL138
DL145
R78
330E
DL53
DL102
DL111
DL119
DL127
R52
DL135
DL56
DL58
330E
330E
R37
DL64
R76
1
33P
100E
-30V
-30V
470E
DL137
R21
470E
DL70
DL101
DL110
DL118
DL126
DL134
DL136
DL142
DL151
R53
D6
D5
R72 100E
470E
DL162
DL98
DL96
DL94
DL92
DL90
DL88
DL86
DL84
DL79
R98
DL63
DL154
DL146
DL139
DL140
DL147
DL155
330E
3
2
Q1Q2 Q3 Q4 Q5 Q6 Q7 Q8
1 A
R84
8bit Sin Pout
MR 9
2 B
R71 100E
100E
330E
-30V
DL153
DL83
DL80
DL74
DL73
DL71
DL61
DL59
DL156
DL148
DL141
R91
D 2
R
+5V
C23
J 16
-30V
470E
DL143
-30V
330E
R90
DL152
R96
DL44
DL46
-30V
R63
470E
DL158
R95
R65
330E
DL104
R49
3
2
SEQUENCER
3
810309 - CONTROLS PANEL BOARD
(TRF Version)
-30V
DL159
R94
DL77
DL85
DL87
DL89
DL91
DL93
DL95
DL97
DL99
DL100
R64 470E
470E
-30V
-30V
330E
-30V
DL69
R39
R57
R68 100K
R45
TR3
BC
327
PCB# 315113
470E
A6
D7
D7
A2
+5V
C32
E1 7
E2 8
3
2
1
4
100P
R52
TR1
BC327
R70 1K
+5V
R74 22K
1K
1K
+5V
DIAL
R38
R45
+5V
3
2
DL38
10K
3
2
DL1
R65
3
2
1
4
DL76
1
AR2 2K2 X4
C39 100N
10K
3
2
R97
TMCI1/FTID/P6,5 36
TMRI1/FTOB/P6,6 37
TMO1/P6,7 38
3
2
R99
MD1
2
1
1
4
DL161
MD0
19
3
SEQUENCER
1
4
3
2
1
4
DL163
20
4
1
4
R62
5
FTIA/P6,2 33
TMRI0/FTIB/P6,3 34
TMO0/FTIC/P6,4 35
1
4
DL82
100E
TMCI0/FTCI/P6,0 31
FTOA/P6,1 32
1
4
FILL
R46
VOLUMES
R66
+5V
1K
+5V
74HC74
CK 3
4
1
4
1
4
3
2
ENDING
100E
D15 4148
1
4
KEY START
100E
R48
1
4
560E
100E
R47
D16 4148
1
4
R60
R37
D14 4148
1
4
3
2
DL81
D12 4148
A14/P2,6 41
A15/P2,7 40
3
2
VAR.4 D7
A12/P2,4 43
A13/P2,5 42
3
2
INTRO
100E
3
2
560E
R36
3
2
1
4
R59
D11 4148
AC1
220P X8
3
2
2
DL75
44
3
VAR.3 D6
100E
A11/P2,3
4
560E
EXTAL
100E
R35
5
1
4
R56
18
100E
R34
D13 4148
6
DL72
XTAL
R33
D10 4148
7
SW16
D9 4148
45
8
1
4
VAR.2 D4
A8/P2,0 47
A9/P2,1 46
A10/P2,2
9
SW11
100E
D6
H.D. LED
SW6
100E
R26
D4
A13
A8
1
4
VAR.1 D2
R27
D7 4148
D0 ARRANGE ON/OFF
A10
20
+5V
SW2
A12
18
1
4
A2
D8 4148
D2
A7
16
560E
-12V
FROM CONTROLS PANEL BOARD CN2
-30V
13
S
3
2
A4
A6/P1,6 50
A7/P1,7 49
3
2
SW1
100E
R93
R83
100E
R1
D5
CN6
A14
VR101 5KB
18K
100E
R5
D1 4148
CONTRAST
R6
D5 4148
3
2
D.HOLD
17
AR3
10K X4
D6 4148
3
2
KEY PAD
STBY
XT1
20MHZ
R29
100E
3
2
560E
E1 7
E2 8
100E
R4
3
2
R86
+5V
NMI
15
10K
1M
100E
R3
3
2
DL124
R31
R2
3
2
PRELOAD
A2 12
LE 11
RES
13
2
3
2
560E
100E
4
1
4
FADE I/O D0
P5,2/SCK
3
D3
D1
D1
D3
D5
14
C12
C7
16
19
DL157
12
C31
100N
14
15
P5,1/RXD
11
DEMULTIPLEXER
MULTIPLEXER
1K
17
A9
3
2
1
4
560E
100N
C25
R22
A8
10
11
A11
3
2
1
4
1
8
9
A13
3
2
1
4
R88
100N
C19
POT8
12
10
5
100N
10
2 X6
5 X7
100N
1K
20
+5V
1
C9
1K
R16
C4
R23
POT7
100N
POT6
8
C10 100N
6
C3
1K
100N
1K
R15
100N
PITCH_BENDER 11
+12V
13
1K
R20
POT5
100N
9
R17
POT4
4
C8
5
M.VOL. 7
MODULATION
POT3
2
C5
3
7 P4,6/CLK0
8 P4,7/WAIT
IC2-A 74HC4351
R28 100E
17 X0
XC 4
18 X1
A0 15
19 X2
A1 13
16 X3
A2 12
1 X4
11
+5V
LE
6 X5
C6
CN2
1
1K
A10
3
2
1
4
R92
100N
C24
R12
POT1
R18
A12
18
3
2
1
4
DL132
100N
C21
A0 15
A1 13
+5V
POT2
A14
16
D4 4148
A4/P1,4 52
A5/P1,5 51
5 P4,4/WR
6 P4,5/AS
10K
10K
R
10
5 Q
3
2
IC8-D 74HC86
5
6
4
D 12
IC6-B
1
4
PLAY
100N
C22
R11
D FF
S
1
4
DL150
100N
2 X6
5 X7
+5V
8 Q
+5V
3
2
1
4
2
RECORD ST/SONG
1K
19
3
1N
R40
1 X4
6 X5
17
A9
4
AC3
220P X8
6
7
15
5
+5V
4
5
13
6
2
3
A15
7
C26
1K
15
A11
14
8
DL106
R55
A13
12 HD_LED
9
C35
1K
2
10
D3 4148
A2/P1,2 54
A3/P1,3 53
9 P5,0/TXD
100E
13
R
10
R73 22K
IC8-C 74HC86
9
8
10
74HC74
CK 11
SW53
R69
560E
R51
19 X2
16 X3
A7
R53
1K
3
13
1K
C16
R9
DEMULTIPLEXER
MULTIPLEXER
R50
4
R44
DIR
+5V
4
74HC4351
R42
XC 4
20
-30V
2K2
A3
100K
1K
C23
IC4-A
17 X0
18 X1
1K
VEE 9
A15
D2 4148
A0/P1,0 56
A1/P1,1 55
3 P4,2/IRQ0
4 P4,3/RD
12
R57
5
C14
A2
R63
R38
R39 100K
100K
A1
6
IC1-D
74HC125
13
12
R59
1K
6
8
VLCD 11
D7
7
A3
BAUD RATE3
330E 11
R19
D6
6
SD 7
D5
2K2
R7
POT1
D4
D6/P3,6 63
D7/P3,7 64
R32
NEXT
1
IC1-B
74HC125
5
D0
D3
R25
560E
2
D4/P3,4 61
D5/P3,5 62
1 P4,0/ADTRG//IRQ2
2 P4,1/IRQ1
100740 - PERIPHERIAL CPU
R58
R41
C17
C18
C26
C27
C28
RXD3
A0
100E
10K
R60
R8
FQ
GET_TXD
R30
10K
R56
TXD3
IC1-C
74HC125
10
330E 8
9
3
D2
8
A2
18
1
IC1-A
74HC125
2
3
560E
4
D2/P3,2 59
D3/P3,3 60
AC1
47P X8
R54
GET_TXD
5
D1
9
A0
16
STOP
P7,7/AN7
14
560E
29
12
R85
MULTIPLEXER
6
1
DL117
FOOTSW3
AC2
220P X8
A14
8
+5V +5V
IC7-A
9 Q
D FF
3
2
STYLE
REAL TIME
7
16 RSTV
D 12
6 Q
9
560E
P7,6/AN6
100N
P7,5/AN5
28
100N
P7,4/AN4
27
POT.9
100N
26
FOOTSW3
1K
100N
FOOTSW1
1K
R43
100N
1K
R61
PEDAL2
100N
R62
PEDAL1
100N
FOOTSW1
6
7
8
R81
P7,3/AN3
4
14 PEDAL V.
S
+5V
1
DL108
P7,2/AN2
25
4
7
560E
24
PEDAL V.
2
15
D FF
8 Q
2
10 EN_LED
1
FQ
6
R80
FOOTSW2
1K
A6
19
D0
5
100P
P7,1/AN1
1K
R64
17
D2
8
4
C30 100P
23
R66
8
A4
DIR
CLK 5
9
D0/P3,0 57
D1/P3,1 58
A1
15
D4
6
CN5
VALIS100740
P7,0/AN0
13
4
A9
IC3-A
22
A5
+5V
2
FQ 3
5
13
A7
CN3
1
DIR 1
12 FOOTSW2
20
9
11
-30V
+5V
AR1
10K X8
3
10 PEDAL3
A3
FROM C.P. INTERFACE BOARD CN3
3K3
R14
HD LED
3K3
1
9
11
18
-30V
R10 3K3
PITCH BEND
FROM CPU & S.G. BOARD CN2
CN6
A2
7
3
A12
VLCD
16
5
D1
2
A3
19
A0
3
D3
D6
A7
17
A6
14
D5
2
A6
A4
12
1
A10
10 EN_LED
D7
2
A13
15
D0
3
A15
A1
D2
8
4
A4
13
D4
6
5
A1
A5
4
6
A11
7
D6
7
A8
VEE
MODULATION
1
A5
-12V
CONTROLS PANEL
2
A0
D6
5
D1
9
R13
D7
CN3
3
D3
2
FROM C.P. INTERFACE BOARD CN1
D5
11
TR2
BC173C
3
CN4
1
TO CONTROL PANEL BOARD CN4
10U
CN1
KB
4
TO INTERFACE
BOARD
D7
+5V
5
D0
IC1-E
74HC125
7
6
C27 100N
IC3-C
VALIS100740
21
-30V
-30V
7
A3
14
100N
30
C1
IC3-B
VALIS100740
16 48
100N
10
100N
9
C30
100N
IC2-B
74HC4351
C13
10
14 39
TO CONTROLS PANEL BOARD CN5
4K7
R21
C2 100N
C15
10U
-12V
C36
10U
12
C34
11 -30V
100N
POT1
+5V
10
IC4-B
74HC4351
9
20
C11
R24
+5V
8
20
74HC74
CK 11
RIGHT SIDE
+5V
100N
C20
C12 100N
LGND
3K3
PEAK-2
7
761135 - CONTROLS PANEL INTERFACE BOARD
C29
CN4
4
PEAK-1
6
9
3
+5V
C35
5
100N
4
10U
3
C37
LGND
C38
2
C33 100N
CONTROLS PANEL SUPPLY
FROM POWER AMP. & SUPPLY BOARD CN5
+12V
2
100N
+12V
CN5
1
1
DIR
D 2
1
PCB CS032001
LEFT SIDE
+12V
+5V
IC6-A
9 Q
3
R
4
SW100
F8
S
74HC86
1
13
R48
THE TECHNICAL SUPPORT IS CARRIED OUT ONLY
BY REPLACEMENT THE COMPLETE BOARD.
H
560E
SERVICE NOTE:
F7
D FF
6 Q
FQ
74HC86
12
11
R35
Q2
2SC2383
F6
R89
NC
F
G
DL133
NC
4
F5
SONG
GND
3
F4
560E
+12V
2
0VAC
D
E
R87
1
F3
C
IC8-B
74HC74
CK 3
DL65
900c
8c
P1
F2
B
140528
RIGHT CONTACTS MYLAR STRIP
(300Vac w/load)
LEFT CONTACTS MYLAR STRIP
140527
TO 240X64DOTS LCD DISPLAY
8c
LCD DISPLAY NEON-LAMP SUPPLY
C2 100N
160V
Q1
2SC2383
L1 1MH
700VAC
IC7-B
5 Q
F1
DL125
C1 47U
C3 15P
3000V
SP1
0.5A FAST
R3 0E
A
1c
R1 5K6
IC8-A
R67 100K
+5V
R2 5K6
D7
TRACK SCROLL
+5V
<
>
730246 - DC-AC CONVERTER BOARD
PCB# 315112/315113/CS032001
GENERALMUSIC S.p.A. ITALY
SCHEMATIC DIAGRAM
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
SK760/880 (TRF)
CONTROLS PANEL BOARDS
CONTROLS PANEL BOARD (TRF)(PCB# 315112) (reverse layout)
KEYBOARD INTERFACE BOARD (PCB# 315024)
CONTROLS PANEL INTERFACE BOARD (PCB# 315113)
DRW: BOCCATO
DWG: 315112/113
315024
CKD: RICCOBELLI
DISK: 5 PART: 1/1
APP: PANNELLI
REV: 28-07-97
SCHEMATIC DIAGRAM
SK760/880
Controls Panel with its Interface and
Keyboard Interface Board Pcb Layouts
GENERALMUSIC S.p.A. Italy
ALL RIGHTS ARE RESERVED, NO COPIES OR
REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
17 J
R49
C33 100P
C37 820P
C38 820P
C34 100P
1
4
1
4
1
4
1
4
1
4
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
6/SOUND
0/PRELOAD
+/DISK
D1
3
2
3
2
SW99
SW94
SW101
3
2
SW89
3
2
SW80
SW75
3
2
D3
-/DEMO
D6
PLAY
STOP
SONG
D4
D2
D0
1
4
SW68
SW59
1
4
1
4
1
4
1
4
1
4
1
4
1
4
1
4
1
4
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
A8
A11
1
4
3
2
D5
STYLE
REAL TIME
5/T. SPLITS
9/GENERAL
SW93
SW88
D1
D3
D5
SCORE
8/OPTION
7/ST/SONG
D7
D6
D4
SW79
SW74
SW92
RECORD ST/SONG
D2
SW67
SW58
SW87
SW98
D0
4/CNT/PADS
3/MIXER
D1
D3
2/MIDI
1/EFFECTS
SW91
SW86
SW78
SW69
D5
KEY PAD
D7
D.HOLD
D6
D4
D2
HELP
UNDO
A15
D1
1
4
1
4
1
4
D1 USER 4
D3 USER 3
D5 LATIN 2
4
1
SW35
4
1
SW30
2
3
2
3
2
3
2
3
A7
A6
SW55
SW56
D2
D0
1
4
R19
560E
R20
DL68
560E
VOL.MIN
VOL.MAX
DIAL
SOLO
STORE PERF.
560E
R30
DL60
3
2
1
4
D2
1
4
D0
560E
DL62
R50
560E
560E
R41
R47
3
2
DIAL
SINGLE
TCH PLAY
EFF.BYPASS
P.GROUPS 8 D3
1
4
DL47
DL45
3
2
SW54
SW57
SW50
SW48
560E
R46
DL34
3
2
1
4
P.GROUPS 7 D5
HARMONY
ON/OFF
P.GROUPS 6 D7
560E
R45
DL24
3
2
1
4
BASS TO
LOWEST
MIXER LOCK
TEMPO LOCK
560E
560E
R44
DL16
R40
3
2
1
4
P.GROUPS 5 D2
1
4
SONG.P D6
ARR.ON/OFF
560E
DL7
R25
560E
R27
3
2
SW46
SW44
SW42
SW39
ARR.MEMORY
LOW. MEMORY
START/STOP D4
1
4
DL5
DL14
3
2
DL67
A10
ARR. MODE
560E
R28
DL22
R29
560E
FILL
560E
3
2
1
4
ESCAPE D1
1
4
INTRO D0
1
4
DL32
R88
3
2
SW52
3
2
SW37
SW49
P.GROUPS 4 D3
FILL
DL50
DL55
R81
560E
FILL
560E
560E
5 6
3
2
1
4
P.GROUPS 3 D5
1
4
VAR 4
FADE I/O
VAR 1
560E
560E
R82
3 4
3
2
SW47
1
4
P.GROUPS 2 D7
1
4
R83
DL10
4
1
SW27
SW23
4
1
A1
1
4
D7 LATIN 1
TRANSP #
TRANSP b
D6 TRAD 2
3
2
SW20
SW5
SW105
SW104
D4 TRAD 1
3
2
SW15
3
2
SW10
3
2
1
4
1
4
D3
OCTAVE +
OCTAVE -
D2 US.TRAD
D0 JAZZ
D1 USER 2
3
2
1
4
1
4
D5
1
4
D7
PAD 4
D6
1
4
SW34
1
4
SW97
SW90
SW81
SW72
D4
D2
PAD 3
D3 USER 1
D5 DANCE 2
1
4
1
4
3
2
SW29
SW26
1
4
3
2
SW45
SW43
3
2
P.GROUPS 1 D2
1
4
VAR 2
VAR 3
560E
560E
R85
DL19
DL28
R84
START
STOP
220E
DL78
3
2
ST.LOCK D6
1
4
ENDING D4
1
4
R96
220E
R94
3
2
SW41
SW40
SW51
1
4
TRANSP b
FILL
FILL
R102 560E
3
2
ENTER D1
1
4
TRANSP #
3
2
KEY START D0
1
4
3
2
SW22
1
4
1
4
PAD 2
D0
PAD 1
D7 DANCE 1
FUNK
D6
3
2
SW19
3
2
A9
SW38
SW36
3
2
D1
1
4
D3
1
4
ST.LOCK
1
4
SW31
SW28
SW21
1
4
D5
1
4
1
4
1
4
SFX D1
PERC. D3
D4 ROCK
1
4
SW66
SW62
A14
1
4
1
4
3
2
SW14
3
2
SW9
1
4
SW103
SW96
D2 16 BEAT
3
2
SW4
1
4
1
4
ETHNIC D5
D7
D0 8 BEAT
D4 STORE PERF.
SYL SFX
SYL PAD
D6
1
4
A5
1
4
SW85
SW83
SW77
3
2
SW33
SW25
REED D0
SW18
1
4
A3
3
2
1
4
1
4
SYN LD. D4
D2 SINGLE
TCH PLAY
3
2
SW13
3
2
SW71
A12
SW65
D0 HARMONY
ON/OFF
3
2
PIPE D2
D4 BASS TO
LOWEST
3
2
A0
3
2
SW8
SW3
3
2
SW61
SW102
BRASS D1
ENSEMB D3
D2 MIXER LOCK
D0 TEMPO LOCK
D1 SOLO
SW32
SW24
SW17
SW95
SW84
STRINGS D5
BASS D7
D5 EFFECTS BYPASS
D6 ARRANGE MODE
D4 LOWER MEMORY
GUITAR D6
ORGAN D4
PIPE D2
D2 ARRANGE MEMORY
SW82
SW76
SW70
SW64
SW60
PIANO D0
8 CP
5
6
10 11 12 13
3
1K
+5V
5
6
10 11 12 13
Q1Q2 Q3 Q4 Q5 Q6 Q7 Q8
1 A
R93
8bit Sin Pout
MR 9
2 B
8 CP
74HC164
4
1K
+5V
SHIFT REGISTER
IC5-A
3
Q1Q2 Q3 Q4 Q5 Q6 Q7 Q8
1 A
8bit Sin Pout
MR 9
2 B
8 CP
74HC164
10 11 12 13
R87
1K
5
6
10 11 12 13
+5V
Q1Q2 Q3 Q4 Q5 Q6 Q7 Q8
1 A
8bit Sin Pout
MR 9
2 B
+5V
SHIFT REGISTER
IC3-A
4
8 CP
74HC164
SHIFT REGISTER
IC2-A
3
4
5
6
1K
4
SHIFT REGISTER
IC9-A
10 11 12 13
Q1Q2 Q3 Q4 Q5 Q6 Q7 Q8
1 A
8bit Sin Pout
MR 9
2 B
SHIFT REGISTER
8 CP
74HC164
IC4-A
74HC164
7
8K2 2
-
1
R15
10K
C7 100N
R14
5K6
7
10K
100N
G.BOCCATO
DWG# 550185
CKD
RICCOBELLI
DSK# 5
APP.
PANNELLI
REV:
PART: 1/1
25/02/99
PITCH BENDER
CHASSIS
GROUND S1
8
IC1-C
TL072
4
PCB# 315169
-12V
DRW
10KB
-12V
C4
+12V
C5 100N
14
IC2-B
74HC164
10KB
1K
R39
+
C8 100N
100N
14
IC3-B
74HC164
C15
7
100N
100N
100N
14
IC4-B
74HC164
C17
7
C20
7
C32
100N
100N
C31
7
14
IC7-C
74HC74
3
R59
-
5
6
C6 100N
C22 100N
100N
100N
C21
C19
100N
100N
C18
C16
100N
C14
100N
C13
100N
100N
C11
100N
C10
7
C25
100N
C36
100N
10U
C39
100N
C28
7
14
IC6-C
74HC74
MOD. CENTER ADJ.
R23 47K
VR12 22K
7
+5V
14
IC5-B
74HC164
6
+
MODULATION
IC1-B TL072
R13 1K
R7 1K
14
IC9-B
74HC164
7
4
R36
+5V
TR2
BC
173C
14
IC8-E
74HC86
R58 1K
5
C9 100N
1
8
R60 1K
D2 4148
2
9
R35 8K2
C2 100N
+12V
C1 100N
3
R11 5K6
R34 10K
2
R57 1K
D1
R6 1K
5
4
+12V
R12 10K
7
6
CN1
3
1
4148
10KB
VR10
IC1-A TL072
R10 1K
C3 100N
+5V
TR1
BC
173C
9
8
PITCH CENTER ADJ.
VR11 22K
47K
R22
UPPER 1
VR9 10KB
VR8 10KB
UPPER 2
LOWER 1
LOWER 2
VR7 10KB
VR6 10KB
ACC 4/6
VR5 10KB
ACC 1/3
VR4 10KB
BASS
DRUMS
MC/LINE
M.VOL.
C24 10U
10U
C23
VR3 10KB
11
VR2 10KB
13
10
TO CONTROLS PANEL INT. BOARD CN2
VR1 10KB
15
12
VOLUMES
+5V
-12V
C29
220E
DL109
R99
R37
DL6
DL37
R74
R49
DL130
DL123
DL115
DL107
220E
DL27
DL11
DL2
220E
DL15
DL23
DL33
220E
DL113
DL120
DL131
220E
R26
R80
R31
DL129
DL122
DL114
DL104
220E
DL41
DL51
DL57
DL66
220E
DL4
DL13
DL21
DL31
R4
R63
R62
DL35
DL25
DL17
DL8
220E
DL36
DL26
DL18
DL9
220E
DL116
DL112
DL105
DL103
R5
R75
R61
DL39
DL48
DL53
DL63
220E
DL40
DL49
DL54
DL64
220E
DL121
DL128
DL138
DL145
R77
R51
DL100
DL99
+12V
220E
DL97
+12V
R76
+12V
DL102
+12V
DL111
+12V
DL119
+12V
220E
DL98
+12V
220E
DL159
DL158
DL156
DL148
R21
+12V
R72
+12V
220E
DL154
+12V
DL101
+12V
DL110
+12V
DL118
+12V
220E
DL146
+12V
DL139
+12V
220E
DL144
DL149
DL160
DL162
R79
220E
220E
R1
+12V
220E
DL29
DL20
DL12
DL3
+12V
220E
DL52
DL43
R2
220E
+12V
220E
DL42
DL30
R91
DL88
DL90
DL92
DL94
220E
R90
DL86
DL84
DL79
DL77
470E
R3
DL58
DL56
470E
220E
R67
+12V
+12V
+12V
DL153
SW73
D1
A0
100E
CN2
16
14
810674 - CONTROLS PANEL BOARD
(SWT version)
+12V
DL126
3
2
+12V
+12V
DL127
3
2
+12V
220E
DL80
DL74
DL73
DL71
R64
DL69
DL70
220E
+12V
220E
3
2
Q1Q2 Q3 Q4 Q5 Q6 Q7 Q8
1 A
R24
8bit Sin Pout
MR 9
2 B
100E
100E
+12V
R33
D0
D3
R8
+12V
R73
D6
D5
R9
100E
220E
R42
R70
220E
DL83
+12V
DL85
+12V
DL87
+12V
DL89
+12V
R78
DL46
DL155
DL151
DL152
DL61
DL147
DL142
DL143
3
2
+5V
PCB# 315113
+12V
R71
DL91
DL93
DL95
DL96
DL44
DL59
DL140
DL141
DL134
DL136
DL137
DL135
3
2
SEQUENCER
3
VOLUMES
J 18
3
2
R48
TR3
BC
327
-12V
FROM CONTROLS PANEL BOARD CN2
+12V
A6
D7
D7
A2
+5V
C32
E1 7
E2 8
3
2
1
4
100P
R52
TR1
BC327
3
2
SEQUENCER
1K
1K
+5V
D 2
R38
R45
+5V
R97 100K
1
3
2
DL38
10K
3
2
DL1
R65
3
2
1
4
DL76
1
AR2 2K2 X4
C39 100N
10K
3
2
R103 560E
TMCI1/FTID/P6,5 36
TMRI1/FTOB/P6,6 37
TMO1/P6,7 38
2
1
1
4
DL161
MD1
3
3
2
1
4
3
2
1
4
DL163
MD0
19
4
1
4
560E
5
FTIA/P6,2 33
TMRI0/FTIB/P6,3 34
TMO0/FTIC/P6,4 35
1
4
R69
100E
TMCI0/FTCI/P6,0 31
FTOA/P6,1 32
1
4
DL82
R46
1
4
FILL
100E
D15 4148
SEQUENCER
R1001K
+5V
R101 22K
R
4
1
4
1
4
3
2
ENDING
100E
R48
1
4
KEY START
100E
R47
D16 4148
1
4
560E
R37
D14 4148
1
4
3
2
R68
D12 4148
A14/P2,6 41
A15/P2,7 40
3
2
DL81
A12/P2,4 43
A13/P2,5 42
3
2
VAR.4 D7
100E
3
2
INTRO
R36
3
2
560E
D11 4148
AC1
220P X8
3
2
2
1
4
R66
44
3
DL75
100E
A11/P2,3
4
VAR.3 D6
100E
R35
5
560E
EXTAL
100E
R34
D13 4148
6
1
4
R65
18
R33
D10 4148
7
DL72
D9 4148
45
8
SW16
A8/P2,0 47
A9/P2,1 46
A10/P2,2
9
VAR.2 D4
100E
A3
H.D. LED
SW12
A8
SW7
A10
20
1
4
D.HOLD
100E
R26
D6
SW63
A12
18
+5V
SW11
R27
D7 4148
D4
A13
16
560E
SW6
D8 4148
R32
1
4
VAR.1 D2
A6/P1,6 50
A7/P1,7 49
D2
A7
A14
1
4
KEY PAD
XTAL
20
+5V
DIAL
+5V
74HC74
CK 3
S
3
2
A4
100E
3
2
SW1
100E
R1
D5
CN6
14
R16
100E
R5
D1 4148
D3
D1
D3
D5
D1
D0
DL157
12
VR101 5KB
18K
R6
D5 4148
CONTRAST
D6 4148
3
2
560E
17
AR3
10K X4
100E
3
2
R17
STBY
XT1
20MHZ
R29
100E
R4
3
2
DL124
E1 7
E2 8
100E
R3
3
2
PRELOAD
NMI
15
10K
1M
R2
3
2
560E
+5V
RES
13
2
3
2
560E
100E
4
3
2
FADE I/O D0
P5,2/SCK
3
1
4
D0 ARRANGE ON/OFF
19
1
4
SW2
17
A9
1
4
A2
A8
A11
3
2
1
4
1
C12
C7
16
20
10
11
A13
3
2
1
4
R18
R31
13
1K
33P
100N
14
15
A10
3
2
1
4
1
4
2
8
9
C31
1K
P5,1/RXD
11
DEMULTIPLEXER
MULTIPLEXER
R22
10
5
100N
POT8
12
100N
10
2 X6
5 X7
A12
18
+5V
1
C9
1K
C4
1K
R16
A14
16
3
2
1
4
R56
100N
C25
A2 12
LE 11
R
10
5 Q
3
2
IC8-D 74HC86
5
6
4
D 12
IC6-B
3
2
DL132
100N
C19
R12
S
1
4
PLAY
100N
C24
R23
POT7
100N
POT6
8
C10 100N
6
C3
1K
100N
1K
R15
100N
PITCH_BENDER 11
+12V
13
1K
R20
POT5
100N
9
R17
POT4
4
C8
5
M.VOL. 7
MODULATION
POT3
2
C5
3
7 P4,6/CLK0
8 P4,7/WAIT
IC2-A 74HC4351
R28 100E
17 X0
XC 4
18 X1
A0 15
19 X2
A1 13
16 X3
A2 12
1 X4
11
+5V
LE
6 X5
C6
CN2
1
19
D4 4148
A4/P1,4 52
A5/P1,5 51
5 P4,4/WR
6 P4,5/AS
10K
10K
D FF
+5V
3
2
DL150
100N
C21
R11
A0 15
A1 13
POT1
1K
17
A9
3
AC3
220P X8
6
7
15
4
+5V
4
5
13
5
2
3
A15
6
STOP
100N
C22
+5V
+5V
R18
15
A11
14
7
RECORD ST/SONG
100N
2 X6
5 X7
2
A13
12 HD_LED
8
1N
1K
3
10
9
C26
R40
1 X4
6 X5
A7
DL106
1K
20
-30V
C35
R55
4
13
D3 4148
A2/P1,2 54
A3/P1,3 53
9 P5,0/TXD
100E
8 Q
SW53
R95
560E
1K
A3
R53
R51
19 X2
16 X3
5
A15
1K
1K
POT2
6
R44
C16
R9
DEMULTIPLEXER
MULTIPLEXER
R50
A2
18
2K2
DIR
+5V
4
74HC4351
R42
XC 4
A0
16
BAUD RATE3
A3
100K
1K
C23
IC4-A
17 X0
18 X1
1K
VEE 9
VLCD 11
D7
7
8
D2 4148
A0/P1,0 56
A1/P1,1 55
3 P4,2/IRQ0
4 P4,3/RD
12
R57
1K
D6
6
SD 7
D5
C14
A2
R63
R38
R39 100K
100K
A1
6
IC1-D
74HC125
13
12
R59
R19
D4
2K2
330E 11
D0
D6/P3,6 63
D7/P3,7 64
R32
R7
2
D3
R25
NEXT
1
IC1-B
74HC125
5
3
D4/P3,4 61
D5/P3,5 62
1 P4,0/ADTRG//IRQ2
2 P4,1/IRQ1
100740 - PERIPHERIAL CPU
560E
R41
C17
C18
C26
C27
C28
R58
A0
100E
10K
R60
RXD3
FQ
GET_TXD
R30
10K
R56
R8
4
D2
8
14
1
IC1-A
74HC125
2
3
TXD3
5
D2/P3,2 59
D3/P3,3 60
AC1
47P X8
IC1-C
74HC125
10
330E 8
9
POT1
6
D1
9
12
560E
P7,7/AN7
4
1
R53
29
560E
13
R
10
R98 22K
IC8-C 74HC86
9
8
10
74HC74
CK 11
D FF
3
2
DL117
MULTIPLEXER
AC2
220P X8
A14
FOOTSW3
R54
IC7-A
9 Q
6 Q
9
STYLE
REAL TIME
8
GET_TXD
S
+5V
D 12
2
10 EN_LED
1
FQ
8
560E
7
7
+5V
7
R52
P7,6/AN6
100N
P7,5/AN5
28
100N
P7,4/AN4
27
POT.9
100N
26
FOOTSW3
1K
100N
FOOTSW1
1K
R43
100N
1K
R61
PEDAL2
100N
R62
PEDAL1
100N
FOOTSW1
6
+5V +5V
D FF
8 Q
1
DL108
P7,3/AN3
A6
19
6
A12
P7,2/AN2
25
17
D0
5
560E
24
PEDAL V.
A4
D2
8
4
R43
FOOTSW2
1K
A1
15
D4
6
3
100P
P7,1/AN1
1K
R64
8
13
DIR
CLK 5
9
D0/P3,0 57
D1/P3,1 58
9
11
A5
4
2
C30 100P
23
R66
4
16 RSTV
A7
7
CN5
VALIS100740
P7,0/AN0
2
14 PEDAL V.
20
5
D1
D6
A9
IC3-A
22
5
15
A3
-30V
2
FQ 3
3
13
18
CN3
1
DIR 1
PITCH BEND
12 FOOTSW2
A2
3
D3
+5V
AR1
10K X8
1
10 PEDAL3
16
D5
2
A7
19
A0
1
A6
17
A6
14
D7
2
A10
A4
12
3
A13
10 EN_LED
4
A15
15
D0
5
A4
A1
D2
8
6
A1
13
D4
6
7
A11
A5
4
FROM C.P. INTERFACE BOARD CN3
3K3
R14
HD LED
3K3
MODULATION
1
A8
7
D6
R10 3K3
CONTROLS PANEL
2
A5
5
D1
VLCD
R13
3
A0
D6
3
D3
9
TR2
BC173C
D7
CN3
D5
11
KB
4
CN4
2
FROM C.P. INTERFACE BOARD CN1
1
TO CONTROL PANEL BOARD CN4
10U
CN1
D7
+5V
5
TO INTERFACE
BOARD
VEE
9
11
6
C27 100N
IC1-E
74HC125
7
-12V
FROM CPU & S.G. BOARD CN2
CN6
7
A3
IC3-C
VALIS100740
21
100N
14
C1
IC3-B
VALIS100740
16 48
100N
10
100N
9
C30
100N
C2 100N
IC2-B
74HC4351
30
TO CONTROLS PANEL BOARD CN5
4K7
R21
10
14 39
C13
100N
10U
-12V
C36
10U
12
C34
C33 100N
11 NC
100N
POT1
+5V
10
IC4-B
74HC4351
9
20
C11
R24
+5V
8
20
74HC74
CK 11
RIGHT SIDE
+5V
C15
100N
C20
C12 100N
LGND
3K3
PEAK-2
7
761135 - CONTROLS PANEL INTERFACE BOARD
C29
CN4
4
PEAK-1
6
9
3
+5V
C35
5
10U
4
C37
LGND
C38
2
3
FROM MIXER BOARD CN5
CONTROLS PANEL SUPPLY
+12V
2
100N
+12V
CN5
1
1
DIR
D 2
1
PCB CS032001
LEFT SIDE
+12V
+5V
IC6-A
9 Q
3
R
4
SW100
F8
S
74HC86
1
13
R89
THE TECHNICAL SUPPORT IS CARRIED OUT ONLY
BY REPLACEMENT THE COMPLETE BOARD.
H
560E
SERVICE NOTE:
F7
D FF
6 Q
FQ
74HC86
12
11
R86
Q2
2SC2383
F6
R55
NC
F
G
DL133
NC
4
F5
SONG
GND
3
F4
560E
+12V
2
0VAC
D
E
R54
1
F3
C
IC8-B
74HC74
CK 3
DL65
900c
8c
P1
140528
RIGHT CONTACTS MYLAR STRIP
(300Vac w/load)
F2
B
LEFT CONTACTS MYLAR STRIP
140527
TO 240X64DOTS LCD DISPLAY
8c
LCD DISPLAY NEON-LAMP SUPPLY
C2 100N
160V
Q1
2SC2383
L1 1MH
700VAC
IC7-B
5 Q
F1
DL125
C1 47U
C3 15P
3000V
SP1
0.5A FAST
R3 0E
A
1c
R1 5K6
IC8-A
R92 100K
+5V
R2 5K6
D7
TRACK SCROLL
+5V
<
>
730246 - DC-AC CONVERTER BOARD
PCB# 315169/315113/CS032001
GENERALMUSIC S.p.A. ITALY
SCHEMATIC DIAGRAM
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
SK760/880 (SWT)
CONTROLS PANEL BOARDS
CONTROLS PANEL BOARD (SWT) (PCB# 315083)(reverse layout)
CONTROLS PANEL BOARD (SWT) (PCB# 315083)
SK760/880
DRW: BOCCATO
DWG: 315169
SCHEMATIC DIAGRAM
CKD: RICCOBELLI
DISK: 5 PART: 1/1
Controls Panel Board Pcb Layout (SWT)
APP: PANNELLI
REV: 25-02-99
GENERALMUSIC S.p.A. Italy
ALL RIGHTS ARE RESERVED, NO COPIES OR
REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
19 J
J 20
21 J
CPU & SOUND GENERATOR BOARD (PCB# 315150/1)
J 22
SK760/880
DRW: BOCCATO
DWG: 315150/1
SCHEMATIC DIAGRAM
CKD: RICCOBELLI
DISK: 5 PART: 1/1
Cpu & Sound Generator Board Pcb Layout
APP: PANNELLI
REV: 25-02-99
GENERALMUSIC S.p.A. Italy
ALL RIGHTS ARE RESERVED, NO COPIES OR
REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
CN2 - to Controls Panel Board
J1 - Set the jumper as follow:
1-2 "A" if Buffer modules are installed
2-3 "B" if SIMM DRAM modules are installed
note: the buffer modules are supplied
with A/V & Vocal processor kit, if
neither buffer or Simm modules are
installed, J1 position is ininfluent.
CN3 - to MIDI I/O Board
CN1 or CN17 to Lcd Display
(depend by organ model)
CN4 & CN12 to A/V
& Vocal Processor Board
LCD
PANEL
CN1
MIDI
CN2
CN3
CN5 - SAMPLE DRAM Expansion
Two sizes are available:
970213 - 2Mbyte (32pins)
970331 - 8Mbyte (44pins)
45.15MHz
8MB DRAM
CN12
CN17
CN4
LCD
VIDEO
CN6 - to Outputs or
Amplifier Board
J2 - Set this jumper as follow:
1-2 for 8MB SAMPLE DRAM expansion
2-3 for 2MB SAMPLE DRAM expansion
if no DRAM expansion is installed
the jumper position must be 1-2.
Ground Connection
CN6
ANALOG
OUTPUTS
DISP3
CN16 - SCSI Expansion
DRAM
SCSI
SIMM J1 B
2MB
315150
CN7 - from Power
Supply Board
POWER
SUPPLY
A
FLASH
MEMORY
2MB
DRAM 8MB
J2
FLASH
MEMORY
8MB
CN5
CN16
CN8 - HARD DISK Expansion
970207 - Optional mounting kit
for Hard disk unit
SIMM17
SIMM18
HARD DISK
CN7
CN10
CN8
DRIVER
2MB DRAM
CN9
SIMM DRAM Expansion Slots,
These modules must be two as:
1M x8 or x9 70nS 30-pins
4M x8 or x9 70nS 30-pins
only 4Mx2 are available from
Generalmusic as code 970225
CPU
FLOPPY
DISK
CNTRL
FPGA
CN10 - to 3.5" Disk Drive
KBD
KBD SUPPLY
CN11
CN13
1
CN13B
VIDEO
CN14
CN15
CN11 - to Keyboard
Interface Board
CN9 - 2Mbyte DRAM expansion
supplied with Hard Disk mounting kit
CN13 (and also CN18) - these connectors
are connected to A/V and Vocal Processor Board
the configuration of these depend by organ model
VR1 - After Touch Adjustment
CN15 - from Keyboard Interface Board
CN14 - Used only for development
DRW G.Boccato
DWG# 550147
PCB#
GENERALMUSIC S.p.A. ITALY
CKD N.Riccobelli
DISK: 64 PRT: 1/1
Cpu & Sound Generator Board
General User Map
APP. Orsetti
REV: 07/04/98
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
23 J
J 24
V3
56
2
1
35
P3
46
CS
V4
54
8
7
36
P4
45
DTACK
V5
53
6
5
37
P5
V6
52
4
3
38
P6
V7
51
2
1
39
P7
PXCLK
41
40
PCLK
BLNC
60
49
FL2
50
DT0
51
52
33E X4
2
3
+5V
8
1
1
7
2
IC2-A
5 Q
10
8
IC3-C
9
74HC74
CK 3
D FF
6 Q
74HC125D
S
D 2
R
+5V
1
C35
100N
10U
+5VC
9 -18V
15
27
RDEDGE
22
MSBDLY
7
8
D FF
R
13
Q 8
D FF
R
1
Q 6
S
4
+5V
C22
1U
22N
D
2 D
R4 2K2
C23
CK
12
2 LGND
74HC74
Q 9
33E
390E
IC8-B
11
74HC74
R11
Q 5
R10
IC8-A
3 CK
CN5
C32
10U
C31
100N
TAG
6
21
-18V
VrefR
RLJUST
S/M
384/256
14
VrefL
10
VinL
C29
17
C33
CAPR2
470P
470P
+5V
RST 23
26
AA12
A13
34
7
8 33E X4
AA13
AR8-D
33E X4
D6
81
D7
82
D8
83
2
1 AR12
13
84
D9
D10 85
D11 86
4
3 33E X4
14
D1
6
5
15
D2
8
7
17
D3
D12 87
D13 88
2
1 AR14
18
D4
4
3 33E X4
19
D5
D14 89
D15 93
6
5
20
D6
8
7
21
D7
D16 94
D17 95
2
1 AR15
4
3 33E X4
AA15
D18 96
D19 97
6
5
AA16
8
7
35
IRQE
55
DT1/F0
59
DR1/F1
DR0
2
1
46
IRQL1
6 WR
8 IOMS
10
DMS
3
8
7
AR17-C
4K7 X4
5
6
11
CMS
WCLK 2
LRCK 1
6
5
AR17-D
4K7 X4
7
8
14
PMS
4
3
AR7-D
8
7
37
PWD
16MHZ
6 AR8-C
SCLK1
IRQL0
XT1
5
SCLK0
IRQ2
1M
33
TFS1/IRQ1
45
R36
AA11
A12
60
4
470P
AA10
7
54
8
470P
AA9
5
8
56
3
C25
3 33E X4
6
32
80
7
C24
4
31
D5
4K7 X4
12
30
RFS1/IRQ0
4K7 X4
CAPL1 11
A9
A11
57
AR17-B
CAPL2
1
A10
40
PWDACK
42
BGH
24
CLKIN
23
XTAL
26
CLK0UT
D20 98
D21 99
D22 100
D23 101
RD 7
BMS 9
AA14
IC12-A 27C4001D
D0
A0 12
+5V
1 VPP
AA17
R35
33E
AA18
+5V
+5V
24
OE
5
1
22
CS
6
AR19-A
33E X4
22
1
8
AR19-D
33E X4
7
AA1
A3 9
A4 8
AA3
A5 7
A6 6
AA5
A7 5
A8 27
AA7
A9 26
23
AA9
A10
330P
330P
C58
330P
330P
C50
330P
C48
C69
330P
C49
330P
C87
330P
C71
C93
VIDEO OUT
TO POWER AMP & SUPPLY BOARD CN11 (WK)
TO ANALOG I/O BOARD CN11 (SK)
TO CONTROLS & MIDI I/O BOARD CN1 (PS-GPS)
1N
C77
1N
120E
C91
1N
120E
R53
R63
100N
C28
100N
8
IC19-B
TD8501
10
C79
1N
C80
C83
C73
50V
47U
100N
10U
100N
44
C103
21
22
C102
5 2 3 4 20 21
IC21-B
ADV476KP35
19 23 24 41 42 43
IC14
7812
IN
OUT
GND
2
3
2
IN
1
GND
3
OUT
IC13
7912
1
7
IC15-B
TL071
4
IC7
7805
IN
OUT
GND
2
L1
3
47UH
+5VC
9 4 25
IC6-B
AD1877
13 16 20 5 24
-12V
14
IC20-G
74HC04
7
AA0
A1 11
A2 10
BLM21
+12V
+18V
+5V
38
AR1 33E X4
AA8
78
AR20-D
CLK
AA7
1 AR13
77
53
28
7
2
D4
3
4K7 X4
8
29
D3
1
BCLK
22
A8
RFS0
2
Sout
AA6
A7
TFS0
5
4
A6
-18V
4
3
AA5
5
76
6
4K7 X4
AA4
3 33E X4
6
75
4K7 X4
AR20-B
1 AR4
4
21
74
4K7 X4
4K7 X4
2
20
D2
AR7-B
AR7-A
19
A5
D1
AR7-C
100E
C34
CAPR1 18
A4
D0
AD1877
VinR
AA3
20
14
IC8-C
74HC74
7
32
IC12-B
27C4001D
16
13
IC17-B
12
25
28
43
73
91
115
79
90
92
ADSP2181
27
44
58
102 116 127
AA2
AA4
AA6
Adjustment Table
UNUSED COMPONENTS
AA8
N.
A11
AA11
A12
4
AA12
A13
28
AA13
A14
29
AA14
A15
3
AA15
A16
2
AA16
A17
30
AA17
A18
31
AA18
IC20-B
3
+5V
AA10
25
IC2-B
11
CK
12
D
74HC74
Q 9
D FF
R
13
7
8
Q 8
S
10
5
6
IC9-D
12
Operation Point
Note:
COMPOSITE DUTY
CYCLE ADJ
R32 side IC18
C81
Set the oscilloscope on DC at 1V/div. 50uS/div., turn the trimmer to have duty
cycle more close as possible to 50%, verify the adjustment with a monitor attached
to VIDEO OUT socket.
11
+5V
+5V
1
4
2
1
Test Point
74HC00
13
2
1
74HC04
4
Adjustment Type
3
4
3
6
5
R37
22N
C26
R9 390E
+18V
8 +18V
19
SIGMA DELTA A/D CONVERTER
C6 1U
7
1 6
IC16-B
HM514260
40 35
100N
FL1
4
8
14
IC2-C
74HC74
7
C66
FL0
48
2
18
14
IC9-E
74HC00
7
C4 10N
IRD
47
5
A3
L4
14
IC10-E
74HC32
7
100N
104
AA2
C43
3
AA1
5
C5 1U
4
AA0
3 33E X4
6
100N
33E X4
1 AR6
4
17
47UH
C76
AR3-B
2
16
A2
10N
7
15
A1
C10
8
A0
L3
C9 1U
C18 47P
33E X4
AC2 47P X4
1
3
IS
+5VB
+5V
100N
AR2 33E X4
PF7
AR3-D
74HC00
8
74HC00
2
PF6
123
113
100N
IC9-A
3
124
97
C44
74HC125D
PF5
41
3
1
IC3-A
PF4
125
128
4
50V
6 CONV-R
R2 10E
AR8-B
33E X4
33E
AR8-A
IC6-A
5 CONV-L
1 DSPCLK
AR3-C
33E X4
6
5
126
IACK
1 IAL
103 IWR
R90
4
R3 2K2
4
7 AGND
R8 1K
D2 4148
74HC32
1
C30 47U
A/V INPUT & SUPPLY
FROM POWER AMP & SUPPLY BOARD
CN5 (WK) CN4 (SK) CN11 (GPS-PS)
CLOCK
FROM CPU & S.G. BOARD CN12
3 +5V
4
R15 33E
5
90
100N
47P
C13
74HC32
4
79
14
IC11-E
74HC125D
7
C64
+5V
2
4
3
4
74HC125D
AC1 47P X4
CN2
1 LGND
5
2
3 PF2
2 PF3
65
14
IC3-E
74HC125D
7
+5VA
EMS 63
ECLK 65
ELIN 67
5 PF0
4 PF1
74HC00
5
55
104 112 128
C57
IAD15
IC9-B
O6 9
O7 7
49
96
100N
105
E1
33
23
85
C15
D31
4
1
73
100N
IAD14
64
C63
IAD13
106
50
GATEVIDEO
C8 100N
IAD12
107
D30
48
100N
108
D29
O4 11
O5 10
32
IC18-B
C7 1U
D28
6 E3
5 E2
R5 1K
17
C11
61
IAD9
16
IC1-B
74AC138
8
100N
62
ERESET
EBR 69
ELOUT 66
EE 64
+5V
5
C65
RESET
IAD11
AR5-A
4K7 X4
100N
IAD10
109
O1 14
O2 13
O3 12
6
C37
110
D27
3 A2
2
100N
111
D26
A21
1
+5V
GND 3
NC 8
C12
D25
A20
BG 72
EBG 71
+5V
VCC 2
RST 7
100N
IAD8
70
MAX709
5 NC
6 NC
100N
IAD7
112
74AC138
O0 15
BR
68
IC4
1 NC
4 NC
C14
113
D24
IC1-A
1 A0
2 A1
A19
EINT
33E
C41
D23
A1
3
R6 1K
R7 1K
2
6
TR11
BC327
TR10
BC327
100N
IAD6
12
+5VA
10K
C56
114
9 IC9-C
6
74HC04
100N
IAD5
D22
R24
C19
IAD4
117
10
5
PAL
ONLY
100N
118
D21
10
1
74HC04
10
IC20-C
R74
C20
D20
R/W
NTSC
ONLY
10U
IAD3
8
10K
74HC04
C60
119
9 IC10-C
1
BMODE 39
MMAP 36
D19
74HC32
11
3
+5V
IDMA
BOOT
EPROM
BOOT
ADSP2181
A1
13
5
IC17-A
IAD2
6
11
R16 100E
IC11-A
74HC125D
120
D1 4148
IC3-D
13
3
1
D18
CS3
8
2
A2
12 IC10-D
8
IC20-D
10U
390E
IAD1
6
IC20-E
11
R79
2
+5V
IAD0
IC10-B
TR4
BC847
J1
121
3
CHR 4
LGND 2
PAL/NTSC
122
IC10-A
74HC32
RED 5
VSYNC
VSYNC
D17
2
220E
+5V
R17
1
82E
R41
HYSYNC
D16
4
82E
R40
SUBCRR
5K6
XT3
9
1
2
74HC04
12
CSYNC
111
74HC125D
7
28
Iref
COMP 29
1
VS 39
EXTAL
110
R60
+5V
RS0 17
6 RD
33E X4
IC20-F
13
100E
3
TR6
BC847
BLU 27
RS1 18
WR
R78
+5V
3
RED 25
GRN 26
CSY 31
SUBCRR 106
HS 40
TEST
XTAL
-12V
D31
D30
+5VA
C52
56P
C68
MD_DIR
16
5
AR9-C
D7 15
Vref 31
7 BLK
33E X4
6
VB 35
HB 34
SCAN_EN
+5VA
D29
100N
SCAN_IN
D28
D5 13
D6 14
+5VA
C101
44
AR16-A
RD-WR 108
RD-RD 107
D27
100N
CMPR
33E
1
D3 11
D4 12
C55
VCOIN
98
33E X4
R77
2
R44
8
D26
100N
114
AR21
LUM 6
BLUE
D25
C47
WE3
CVBS 7
82E
GREEN
D1 9
D2 10
100N
WE2
102
ADV476KP35
D24
D0 8
C17
101
BLUE
82E
R38
PAL
ONLY
100N
WE1
82E
R39
RED
C99
WE0
99
R55
3
100P
XRST
GREEN 9
2
1
3
C96
47
2
1
3
100P
P1
2
1
HSYNC 10
82E
TR9
BC857
C98
33
TR7
BC857
220E
R52
50V
5
TR5
BC857
47U
P0
6
P2
330E
5
IC21-A
32
58
34
66
6
33E X4
7
59
V1
3
D_DIR
IC3-B
AR18
8
V0
3K9
NTSC
ONLY
R64
C104
MD15
R48
CN4
2
R81
84
4
MODE
680E
MD14
MD15
57
11
R46
MD13
83
V2
43
10K
MD12
82
MD14
R/W
115
R47
81
MD13
A21
100
+5V
MD12
220N
C3 100N
IC20-A
74HC04
100P
MD11
C88
FLT 15
SW2 17 +5VB
100N
100E
MD10
80
BSTADJ
2 SW1
1K2
2
C21
R75
78
MD11
21
1K
R72
3
1
2
C100 100N
R19
220E
R45
C97
2
MD10
220K
1K2
50V
1K
100P
C38
100N
1
MD9
42
C40
1K8
100N
3K9
R22
C36
IC15-A TL071
R76
C67
R32
+5V
10
A21
MD8
R68
R80
+5VB
1K2
R65
100N
2K2
A20
MD8 76
MD9 77
MD7
R66
TR2
BC847
3
1
C53
3
R23
6
8 A19
9 A20
A19
MD6
MD5
19
CVBS 16
NOTCH 18
OSC 23
TR1
BC847
3
1
100N
10K
A18
PAL 30MHz
NTSC 30.20979MHz
C75 10P R49 220E
R31
6 A16
7 A17
A17
13
22P
4K7
R43
COMP DUTY
CICLE ADJ
2
4 A14
5 A15
109
5P2-30P
100K
120E
C74
R29
2 A12
3 A13
TR8
MPS818
C81
100N
A11
MD6 72
MD7 75
220N
Y OUT
TR3
BC847
2
C46
4K7
680E
R13
C39
127
100N
C61
-12V
IC11-D
74HC125D
11
12
XT2
D3 BB204G
100N
100N
A12
A16
+5V
10
R42 100E
PAL 8.867238MHz
NTSC 7.15909MHz
100K C62
A10
A15
R21
4
CHROMA SUBCARRIER PLL
R30
A9
126
A14
IC11-C
74HC125D
8
9
+12V
1K
A8
125
A13
IC11-B
74HC125D +5V
6
5
R28
124
A11
ADSP2181
+5V
A9
A10
C89
CSYNC
6 C U/Q
12 C V/I
1K2
47U
SDMA-C0
24
220N
R56
C54
SDMA-CK
2
100N
100N
C95
C OUT
14
50V
4
C90
C105
1K2
47U
A7
R1 33E
MD4
MD3
9 G
11 B
GND
R70
C51
SDMA-IN
MD2
MD4 68
MD5 70
20
DELAY
LINE
AR19-C
33E X4
6
MD2 69
MD3 67
22
YD IN
L5 TOKO1436
1 IN
OUT 3
AR19-B
33E X4
A6
123
100N
YD OUT
13
1K
AR5-B
4K7 X4
122
A8
C92
5 Y
7 R
VREF
R73
AR20-A
4K7 X4
A5
A7
100N
4
AR3-A
33E X4
121
RST
MD0
MD1
C94
FH/2
1K
A6
8
OE
TD8501
1K
A4
10 R/W
27
1K
IC19-A
1 -(R-Y)
3 -(B-Y)
R57
120
LCAS
4K7
A21
A5
29
R33
MD0 74
MD1 71
A3
33E X4
CPU DATA BUS
119
1 AR9-A
MD15
AR5-D
4K7 X4
1
A4
2
MD13
22P
3
A20
D14 38
UCAS D15 39
C107
CS3
14
28
RAM DAC
5
SDMA-C1
A3
MD14
33E X4
R18 680E
7
A2
A19
12
9
A18
118
16
RAS
3 AR9-B
47P
11
A1
WR
14
3 AR16-B
4
C27
PAL/NTSC
A0
117
13
33E X4
7 AR16-D
4
1 OF 8 DECODER
13
116
A2
105005 - FPGA (VIDEO MODE)
15
C1 100P
WE0
WE1
A1
33E X4
8
22P
CN1
63
1K
RAS 62
UCAS 105
LCAS 103
120E
R/WC
D15
C70
D14
29
+5VB
1K2
R51
28
D31
R54
1N
D30
MD12
MD11
C45
A9
MD10
D12 36
D13 37
D4 4148
2
NC
1K8
1
30
R26
D13
1K8
27
R25
D29
MD9
1K8
A10
NC
R27
4
11
10U
3
NT_OUT
C78
D12
1N
26
C106
D28
MD8
D10 33
D11 34
1K
A11
NC
R83
6
12
30
C72 100N
D11
MD7
R59
A8
DTACK2
25
NC
1K
5
D27
15
100E
R69
A7
A12
R34
1K
8
D10
MD6
D8 31
D9 32
R67
7
24
A8
MD5
AR16-C
33E X4
A6
D26
26
D6 9
D7 10
PAL/NTSC ENCODER
A13
A7
AR9-D
33E X4
10
MAD8 95
A6
25
AR5-C
4K7 X4
9
D9
A5
24
47P
A5
22
23
33E X4
C2 47P
D25
7
C42
A14
5 AR10
8
UNMOUNTED - FUTURE EXPANSION
12
6
82E
11
3
MAD6 93
MAD7 94
RESET
A4
4
D8
761152 - AUDIO/VIDEO WITH VOCAL PROCESSOR BOARD (NTSC VERSION)
MD4
82E
D7
21
MD3
MD2
R88
D6
20
D24
D3 5
D4 7
D5 8
82E
19
D23
A15
A4
R86
D22
A16
14
A3
22
1K8
A17
16
13
19
1
R84
18
15
A3
A2
7
R71
17
A2
2
R82
A1
8
MAD4 91
MAD5 92
MD1
100E
D5
761143 - AUDIO/VIDEO WITH VOCAL PROCESSOR BOARD (PAL VERSION)
MD0
D1 3
D2 4
R14
D4
18
A1
18
10N
16
D21
IC16-A HM514260
D0 2
A0
17
33E X4
C16
D20
D31
5 AR11
82E
D23
20
3
6
82E
22
19
1
4
82E
21
D16
2
MAD2 88
MAD3 89
R85
D3
D24
16
MAD0 86
MAD1 87
R87
D2
15
R89
14
D19
1K2
D18
D30
R62
D22
24
100E
26
23
R50
25
D17
AR17-A
4K7 X4
D25
GATEVIDEO
47U
D1
IC18-A
AR20-C
4K7 X4
D0
13
100N
12
D17
C86
D16
D29
C85
D21
28
100E
D28
30
27
R61
32
29
D18
100N
31
D26
C84
D19
256K X16 DINAMIC RAM
D20
C82
FROM/TO CPU & SOUND GENERATOR BOARD CN13
34
R20
ADC & CONTROL SIGNALS
33
CPU ADDRESS BUS
FROM/TO CPU & SOUND GENERATOR BOARD CN4
ADDR & DATA BUS
CPU DATA BUS
CN3
D27
PCB# 315109
S
+5V
10
DRW RICCOBELLI
DWG# 550137
CKD RICCOBELLI
DSK# 6
APP. PANNELLI
REV:
PART: 1/1
19-01-00
PCB# 315109
GENERALMUSIC S.p.A. ITALY
SCHEMATIC DIAGRAM
ALL RIGHTS ARE RESERVED, NO COPIES
OR REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
A/V WITH VOCAL PROCESSOR BOARD
25 J
AUDIO/VIDEO INTERFACE BOARD (PCB# 315092)
AUDIO/VIDEO INTERFACE BOARD (PCB# 315113)
J 26
SK760/880
DRW: BOCCATO
DWG: 315150
SCHEMATIC DIAGRAM
CKD: RICCOBELLI
DISK: 5 PART: 1/1
Cpu & Sound Generator Board Pcb Layout
APP: PANNELLI
REV: 25-02-99
GENERALMUSIC S.p.A. Italy
ALL RIGHTS ARE RESERVED, NO COPIES OR
REPRODUCE THIS DOCUMENT WITHOUT
WRITTEN CONSENT BY GENERALMUSIC.
Test Procedure and Adjustment
The procedures that follow must be executed subsequently in
the order specified.
These procedures are not intended to repair a fault but only to
check the correct instrument operations after a repairing execution.
Test Instruments
þ Dual trace oscilloscope
þ Digital Multimeter
Accessories
þ
þ
þ
þ
þ
þ
þ
þ
þ
þ
8Mbyte DRAM module
2Mbyte DRAM module
2 x 4Mbyte SIMM DRAM modules
1 Hard Disk Kit
1 Vocal Processor Kit
1 3.5inch Diskette
1 SCSI Kit
Read/write SCSI device (ZIP, JAZ, Hard disk etc…)
RS232 loopback (terminal 1-2 and 3-5 shorted)
2 jack-jack cables with a resistor divider inside plugs (10K/
82ohm).
To check completely the keyboard are necessaries all the
optional accessories installed, normally this keyboard have
installed from the manufacturer the 2Mbyte DRAM module only.
Setup
Install all the optional accessories: Hard disk and its 2Mbyte
module (CN9), 8Mbyte module instead the pre-installed 2Mbyte
module on Sample Dram connector CN5, the 2 SIMM modules,
the SCSI and the Vocal processor kits, insert the diskette into
3.5" disk drive.
Set the jumpers on CPU board as follow: J1 at position B and J2
at position 8MB.
Set the JP1 and JP2 jumpers on Supply or Mixer board at position
A.
Connect the R and L outputs to the MIC/LINE inputs using the
appropriate cable.
Connect the external SCSI device to the SCSI socket.
Plug the RS232 loopback into the socket.
Checks and Adjustments
þ Aftertouch
To adjust the keyboard aftertouch locate the VR1 trimmer on
CPU board, connect the scope CH1 probe tip to its center
terminal, probe clip connected at ground, adjust VR1 to obtain
an excursion from 0 to 5V every time a note key is pressed with
different pressure, or to obtain a better adjustment follow the
instructions on ADJUSTMENT TABLE (page 10 or 12).
þ MIDI, RS232 and RS422 mode
Press GENERAL and go to page 3 using the page scroll keys,
select MODE(F8) and set PC1 with cursor keys, press ENTER to
confirm; press MIDI, select COMMON/ARRG.(F5) and set Common Ch. to 1 using the DIAL, press (F7) to set LOCAL OFF, verify
that the keyboard plays thru RS232 by unplugging and reinserting the RS232 loopback into the socket.
Press GENERAL and select MODE(F8), select MACINTOSH using
the cursor keys, press ENTER, check the 1MHz clock appear on
pin 1 of COMPUTER socket (use the second probe tip to do that).
Go to page 4 and press SET DATE(F1) button, set the day, month
and year using the DIAL or numeric keypad, press ENTER; also
set the time pressing SET TIME(F2), finally return to the first
page of GENERAL settings.
þ Trackball (Pitch and Modulation)
Rotate the Trackball in vertical way (Modulation) verifying the
excursion displayed, it ranges from 0 to 127.
Rotate the Trackball in horizontal way (Pitch) verifying the
excursion displayed, it ranges from 0 to 127 with 64 on center
position.
A slightly difference may be adjusted by VR11(Pitch) or
VR12(Mod.) on Controls panel board, major differences may be
adjusted repositioning the knob or the potentiometer.
Press ENTER and ESCAPE simultaneously to return to HARDWARE test menu.
þ Memories and Optional Accessories
Press ALL PART (F1), the instrument self-test check subsequently the follow devices: SIMM modules (F2 Volatile DRAM),
8Mbyte sample dram (F3 Backed DRAM), Internal Hard Disk (F4
HardDisk), 3.5" disk drive (F5 Floppy Disk), Video interface (F6
Video) and SCSI interface (F7 SCSI Test) and marking with
“Pass” all devices checked successfully, with “Not Present” all
devices not attached, with “Fault” all device defective. Theoretically all test must be passed, if you have a mistake on a device
re-check its installation.
Press ENTER if necessary.
þ Inputs, Dsp and Vocal Processor
Put MASTER - INPUT - LEVEL sliders to maximum position and
rotate full clockwise GAIN1 and GAIN2 potentiometer located on
the rear side.
Turn on the 1KHz test tone pressing HARDWARE SET(C), measure a sinusoidal signal at 4Vpp on OUT 1 and OUT 2 outputs
sockets (the 1KHz tone gets out OUT R and L, re-input thru MIC
1 and 2 by the appropriate cable, pass thru DSPs and finally get
out from OUT 1 and 2).
Turn off the signal by means HARDWARE SET(C).
þ Noise level
Turn off the instrument, disconnect the signal cable, wait at least
30 seconds, turn on again the keyboard and check the noise level
is acceptable (if not verify the insulation between electrical and
chassis ground is at least 40Kohms).
þ Data Hold
Press GENERAL, SYSTEM INFO(F2), (F8), ENTER and DATA HOLD
(F8) and then wait until the display show PASS.
Turn off the keyboard and then remove not included optional kits
(the SK base version is equipped with 2Mbyte SAMPLE DRAM
only), restore the jumpers positions: J1 to A, J2 to 2MB, JP1 &
2 to B. Turn on again the instrument and verify, repeating the
test, that only Backed DRAM pass, press ESCAPE.
þ Final
Verify the keyboard correct operation playing something on it,
finally launch the Demo sequence pressing DEMO and ENTER.
When it is finished you have tested the keyboard.
þ
Reliability Check
Before reassembling the instrument and before deliver it to the
user, it is a goal verify its reliability:
To do that switch it off, or leaving it switched on but operating
with greatest caution, carefully shake the boards and connections inside it using an insulated tool (for example the handle of
the screwdriver) to find wrong contacts and so on.
Turn on the instrument and verify that it operates correctly
repeating the Final Check.
Disconnect the instrument from the mains, reassemble it and
shake it carefully without causing aesthetics damages, reconnect it to the mains, turn on and re-check its functionality,
finally leave it switched on for a long time verifing its functionality occasionnally.
þ Panel Key and Led
Press GENERAL, SYSTEM INFO (F2) and (F8) the display show
a warning message: press ENTER to continue, select PANEL
TEST(A) and then press all the panel buttons checking their
operation on display, at the same time every led of pressed
button must light up, except DISK led.
27 J
230560
141016
141013
140866
140324
106003
106000
105010
105005
104003
103031
103030
103012
103011
103010
103007
101500
100739
100059
100045
100043
100019
091001
091000
090153
090102
081000
080500
010717
010716
010715
010714
010602
761093
103013
103003
271200
130428
130317
120003
Spare Part List
Legend
EU = Specify European Version (230Vac)
US = Specify United States Version (115Vac)
SK760
= Mounted on SK760 only
SK880
= Mounted on SK880 only
TRF = Transformer Supply Version only
SWT= Switching Supply Version only
Ref Code
Description
Accessories
271251
271250
271248
271249
271218
271219
955908
955909
955905
956005
300617
130274
130276
Owner's Manual (Spanish Language)
Owner's Manual (Dutch Language)
Owner's Manual (French Language)
Owner's Manual (German Language)
Owner's Manual (Italian Language)
Owner's Manual (English Language)
Operating System Disk (SK760)
Operating System Disk (SK880)
Demo Disk
RASS Demo Disk
Owner's Manual Folder
Mains Cable (EU)
Mains Cable (US)
Optional Accessories
93
91
91
78
89
89
89
89
J 28
970125 Carring Bag (SK760)
970110 X-Metal Stand (SK760)
970300 Amplified Stand 230Vac (EU) (SK880)
970311 Amplified Stand 115Vac (US) (SK880)
970116 Single Foot Switch
970080 Triple Foot Switch
970134 Piano Single Foot Switch
970107 Volume Pedal
970084 Dynamic Pedalboard
130301 2mt Midi Cable
130429 3mt RS232 Cable (MiniDin 8 To D-Sub 9)
970207 Hard Disk Installation Kit (NO HD)
840824 *
44 Wires 7.5cm Length Flat Cable
761094 *
16Mbit Dram Module
140923 **
32 Contacts Vert Female Connector
104009 **
HM5118160ALJ 16Mbit Dram Ta=70nS
271062 *
Hard Disk Installation Instructions
171250 *
Hard Disk Support
970347 Hard Disk Kit with World Contents
561004 *
Hard Disk with World Contents
271234 * Hard Disk Contents Sheet
970332 Hard Disk Kit with Italian Contents
561003 *
Hard Disk with Italian Contents
110404 **
2GByte Hard Disk (type depend by availability)
271233 *
Hard Disk Contents Sheet
970363 Oriental Kit
955921 *
Oriental "Styles and Demo" Disk
955920 *
Oriental "Sound 2" Disk
955919 *
Oriental "Sound 1" Disk
271257 *
Owner's Manual Oriental Kit
970225 Volatile SIMM Dram Modules (4MB x2)
271065 * Dram Installation Instructions
100742 *
Single 4MByte SIMM Module
970213 2Mbyte Backed Samples Dram
970331 8Mbyte Backed Samples Dram
970330 SCSI Interface Kit
970245 NTSC Audio/Video Interface Kit (US)
970241 PAL Audio/Video Interface Kit (EU)
970343 NTSC A/V & Vocal Processor (US)
970342 PAL A/V & Vocal Processor (EU)
841004 *
34 Wires 7.5cm Length Flat Cable
841049 *
10 Wires 40cm Length Flat Cable
841019 *
10 Wires 65cm Length Flat Cable
840823 *
10 Wires 10cm Length Flat Cable
840009 *
16 Wires 7.5cm Length Flat Cable
840204 *
9 Wires 15cm Length Flat Cable
841025 *
2 Wires 10cm Length Screened Cable
761093 *
Buffer Module Board (Pcb# 315023)
103013 **
74HC138D SOIC 1 Of 8 Decoder
103003 **
74HC374DW SOIC Octal D-Type Flip-Flop
760994 *
Audio/Video Interf. Board (Pcb# 315092) (NTSC Version)
760993 *
Audio/Video Interf. Board (Pcb# 315092) (PAL Version)
761143 *
Audio/Video Pal & Harmonizer Board (Pcb# 315109)
761152 *
Audio/Video Ntsc & Harmonizer Board (Pcb# 315109)
231000 **
BLM21A102STP Smd EMI Coil For Signal
230582 **
LC Delay Line 400ns 0.5MHz
230569 **
FL5R200PNT EMI Coil For Signal
230561 **
47uH 10% 100mA RF-Coil
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
*
**
**
*
*
*
*
22uH 10% 170mA RF-Coil
16 Contacts Vert Female Connector
10 Contacts Vert Female Connector
34 Contacts Vert Male Connector
9 Contacts Vert Male Connector
MAX709 Power Monitor With Reset
TDA8501 PAL/NTSC Encoder
ADSP2181 Dsp Microcomputer
FPGA - Video/Lcd Controller
HM514260JP SOJ Dynamic Ram 4Mbit Ta=70ns
74HC00D SOIC Quad Nand Gate
74HC32D SOIC Or Nand Gate
74HC125D SOIC Quad Tri-State Buffer
AD1877 SOIC Dual Channel 1bit ADC
74HC04D SOIC Hex Inverter
74HC74D SOIC Dual Flip-Flop
74AC138D SOIC 1 Of 8 Decoder
ADV476 Color Palette Ram Dac
7805 +5V 1A Voltage Regulator
7812 +12V 1A Voltage Regulator
7912 -12V 1A Voltage Regulator
TL071 LN J-Fet Operational Amplifier
BC857 TO236 Smd Pnp Transistor
BC847 TO236 Smd Npn Transistor
BC327 TO92 Pnp Transistor
2N918 VHF Npn Transistor
PMLL4148 Smd 100mA 75V Signal Diode
BB204G Dual Varicap Diode
30.20979MHz Quartz Resonator (NTSC Version)
7.15909MHz Quartz Resonator (NTSC Version)
8.867238MHz Quartz Resonator (PAL Version)
30MHz Quartz Resonator (PAL Version)
5p2-30pF N750 Ceramic Capacitor Trimmer
Buffer Module Board (Pcb# 315023)
74HC138D SOIC 1 Of 8 Decoder
74HC374DW SOIC Octal D-Type Flip-Flop
Vocal Processor Owner's Manual Addendum
3mt Video Cable (Din/Rgb To Rca) (NTSC Version)
3mt Video Cable (Din/Rgb To Scart) (PAL Version)
M3x8mm Screw
55
23
35
28
30
25
33
24
35
32
22
41
41
57
40
37
29
34
39
26
27
59
20
21
31
11
Cabinet Assembly
18
1
56
53
2
4
4
4
4
54
54
54
54
5
5
5
5
55
55
55
Bottom Assembly
731009 Gnd-Shield Board (Pcb#315164)
660461 Bottom Chassis (SK760)(TRF)
660615 Bottom Chassis (SK760)(SWT)
660462 Bottom Chassis (SK880)(TRF)
660613 Bottom Chassis (SK880)(SWT)
652729 Left Side (SK760)
652728 Right Side (SK760)
261178 Left Side (SK880)
261177 Right Side (SK880)
171400 Side to Panel Hooking (SK880)
340357 Spacer For Left & Right Side
340330 Washer 10/4x7mm
340115 Adhesive Flat Cable Fixing
340093 Board Spacer
190230 Lateroid Insulator
171455 Accessories Support
171406 Phones Board Support
340435 Adhesive Foot
110020 T5A Fuse 5x20mm (EU)
110021 T5A Fuse 6.3x32mm (US)
110010 T2A Fuse 5x20mm (SWT)
110011 T1A Fuse 5x20mm (EU)
110083 T2A Fuse 6.3x32mm (US)
110009 T630mA Fuse 5x20mm (EU)
110085 T630mA Fuse 6.3x32mm (US)
Top Assembly
660453 SCSI Slot Closer
660446 Controls Panel (GEM)(SK760)(TRF)
660617 Controls Panel (GEM)(SK760)(SWT)
660450 Controls Panel (GM)(SK760)(TRF)
660620 Controls Panel (GM)(SK760)(SWT)
660448 Controls Panel (GEM)(SK880) (with oval wheels)
660452 Controls Panel (GM)(SK880) (with oval wheels)
660693 Controls Panel (GEM)(SK880) (with normal wheels)
660694 Controls Panel (GM)(SK880) (with normal wheels)
660445 Rear Panel (GEM)(SK760)(TRF)
660616 Rear Panel (GEM)(SK760)(SWT)
660449 Rear Panel (GM)(SK760)(TRF)
660619 Rear Panel (GM)(SK760)(SWT)
660447 Rear Panel (GEM)(SK880)(TRF)
660614 Rear Panel (GEM)(SK880)(SWT)
660451 Rear Panel (GM)(SK880)(TRF)
80
84
105
106
81
108
109
72
73
98
99
83
97
77
38
660618
652747
652746
652745
652743
652742
652740
652739
652738
652751
652736
652725
653489
652727
652724
652723
652717
652715
651560
340586
340574
340573
340556
340547
340544
340543
340542
340541
340540
340538
340522
340521
340512
340510
340494
340493
340370
340186
340092
230584
210251
171583
171472
171451
171450
171430
171429
171424
171420
171419
171417
171397
171396
171395
171392
171384
171383
171004
171003
150032
140528
140527
130061
120960
120808
110400
110254
080755
Rear Panel (GM)(SK880)(SWT)
<Style Groups> Actuators Rubber Strip
<Sound Groups> Actuators Rubber Strip
Potentiometers Display Rubber Strip
<Enter ... Cursor Down> Actuators Rubber Strip
<Intro ... Start/Stop> Actuators Rubber Strip
<Record ... Play>> Actuators Rubber Strip
<Fade I/O ... Fill >> Actuators Rubber Strip
<Pad 1 ... Tranposer #> Actuators Rubber Strip
<Contrast ... Key Pad> Actuator Rubber Strip
<Arrange ... Store Perf> Actuators Rubber Strip
Left Top Plastic Chassis (SK760)(with oval wheels)
Left Top Plastic Chassis (SK760)(with normal wheels)
Left Top Plastic Chassis (SK880)
Right Top Plastic Chassis
Display Controls Panel
<Performance Groups> Actuators Rubber Strip
<Edit/Number> Actuators Rubber Strip
Display Plastic Glass
Insulant Spacer
Left Display Rubber Keypad
Right Display Rubber Keypad
Polycarbonate Washer for Dial
6.5mm Spacer
Spacer For Display Metal Support
Spacer For Display Controls Panel
Controls Lower Spacer
Controls Centre Spacer
Controls Upper Spacer
Trasparent Support For Controls Panel
Disk Drive Frame (SK880)
Dial Support
Slider Potentiometer Guide
Led Lens
Slider Potentiometer Knob
Dial Knob
Mic/Line Knob
Adhesive Cable Fixing
5mm Board Spacer
EMI Ferrite For Flat Cable
Potentiometers Gasket
3 Din Sockets Reinforcement
Controls & Midi I/O Board Support
4 Jack Sockets Reinforcement
6 Jack Sockets Reinforcement
Top-Bottom Chassis Reinforcement (SK880)
Controls Panel Front Reinforcement(SK880)
4 Din Sockets Reinforcement
Right Disk Drive Support (SK880)
Left Disk Drive Support (SK880)
Pitch & Mod. Ass'y Reinforcement (SK880)
Spacer For R-Top Plastic Chassis
Spacer For L-Top Plastic Chassis
Analog I/O Board Support
Top-Bottom Chassis Reinforcement (SK760)
Display Metal Support
Control Panel Metal Plate
Right Disk Drive Support (SK760)
Left Disk Drive Support (SK760)
10mm Spacer
Right Contact Mylar Strip (display)
Left Contact Mylar Strip (display)
7 Wires 0.20 Length Flat Cable
Dial Steel Sphere
12mm Spacer
3.5" Disk Drive
Rotary Encoder With Snap
Lcd Display 320X240 dots SP14Q001 Hitachi
Mains Assembly
7
9
8
10
730681
340359
171008
110614
110285
767988
230568
140010
110119
020493
010545
103 230532
Mains Filter Board (Pcb#315014)(TRF)
*
10mH 250Vac 1A AC Line EMI Coil "Siemens"
*
3 Contacts P=10 Vert Terminal Block
*
Fuse Clip 10A max
*
100n 250Vac MKP EMI Capacitor "Siemens"
*
4n7 250V Ceramic Capacitor (Iec-Ul-Csa)
30mh Imax=1a Mains Filter Coil (SWT)
230127
230129
Transformer 230Vac 120W (EU)(TRF)
Transformer 115Vac 120W (US)(TRF)
Switching Supply Unit
101 731011
SNP9541M 40W Switching Supply Unit (SWT)
Power Amplifier & Supply Board (TRF)
88
730668
230524
141015
141010
140874
140873
140325
140324
140323
140010
110305
110119
100955
100931
100906
100061
100045
100043
090183
090153
090152
080606
080171
080168
080103
070181
030950
030554
030525
Power Amplifier & Supply Board (Pcb#315116)(TRF)
*
100uH Switching Coil
*
14 Contacts Vert Female Connector
*
4 Contacts Vert Female Connector
*
Single In Line Vert Male Strip (specify contacts)
*
4 Contacts Vert Male Connector
*
12 Contacts Vert Male Connector
*
9 Contacts Vert Male Connector
*
6 Contacts Vert Male Connector
*
3 Contacts P=10 Vert Terminal Block
*
Relay 12V / 2 Switch 1A 250V
*
Fuse Clip 10A max (EU) (US)
*
LM2576 5V 3A Switching Regulator
*
MC34081 Single J-Fet Operational Amplifier
*
CEM3381 Dual V.C.A.
*
TL072 Dual J-Fet Operational Amplifier
*
7812 +12V 1A Voltage Regulator
*
7912 -12V 1A Voltage Regulator
*
BC550 TO92 LN Npn Transistor
*
BC327 TO92 Pnp Transistor
*
BC337 TO92 Npn Transistor
*
GBU8D 8A Rectifier Diodes Bridge
*
FE6B 6A 100V Fast Recovery Diode
*
W02M 1.5A Rectifier Diodes Bridge
*
1N4148 100mA 75V Signal Diode
*
10K 20% Horizontal Linear Trimmer
*
470u 16V 20% Low Esr Vert Electrolytic Capacitor
*
4700u 35v 20% Snap-In Electrolytic Capacitor
*
2200u 63V 20% Snap-In Electrolytic Capacitor
Mixer Board (SWT)
102 761183
141102
141015
141010
140877
140874
140873
140325
140324
140323
110305
100906
100061
090183
090153
090152
080103
070332
030954
030247
102015
Mixer Board (Pcb#315151)(SWT)
*
6 Contacts Vert Male Connector
*
14 Contacts Vert Female Connector
*
4 Contacts Vert Female Connector
*
Jumper For Contacts Strip (p=2.54mm)
*
Single In Line Vert Male Strip (specify contacts)
*
4 Contacts Vert Male Connector
*
12 Contacts Vert Male Connector
*
9 Contacts Vert Male Connector
*
6 Contacts Vert Male Connector
*
Relay 12V / 2 Switch 1A 250V
*
CEM3381 Dual V.C.A.
*
TL072 Dual J-Fet Operational Amplifier
*
BC550 TO92 LN Npn Transistor
*
BC327 TO92 Pnp Transistor
*
BC337 TO92 Npn Transistor
*
1N4148 100mA 75V Signal Diode
*
470K 20% Horizontal Linear Trimmer
*
100u 35V 20% Low Esr Vert Electrolytic Capacitor
*
10u 25V 20% Vert Electrolytic Bipolar Capacitor
*
Hybrid +5Vdc/-24Vdc 20mA Converter
Phones Board
96 730678
112 730686
230569
140361
140327
140217
Phones Board (Pcb#315118) (SK760)
Phones Board (Pcb#315123) (SK880)
*
FL5R200PNT EMI Coil For Signal
*
6 Contacts Vert Male Pass-Thru Connector o questo
*
6 Contacts Hor Male Connector o quelo
*
Jack Stereo Slim Horizontal Socket
76 Notes Keyboard Assembly
Mains Switch Assembly
*
Power Switch Frame
*
Mains Socket & Power Switch Support
*
Mains Socket
*
Power Switch
Mains Filter
86
Tranformers
87
87
94
720493
841064
840838
840808
761137
230569
141018
141016
141011
140918
140872
100740
100605
090194
76N
*
*
*
*
**
**
**
**
**
**
**
**
**
Keyboard Assembly with Interface (SK760)
2 Wires 17cm Length Crimp Terminal Cable
20 Wires 15cm Length Flat Cable
16 Wires 30cm Length Flat Cable
Keyboard Interface Board (Pcb#315024) (SK760)
FL5R200PNT EMI Coil For Signal
20 Contacts Vert Female Connector
16 Contacts Vert Female Connector
6 Contacts Vert Female Connector
2 Contacts Hor Male Connector
4 Contatcs Hor Male Connector
HD6433278 Cpu F=20MHz
74HC125 Quad 3-State Buffer
BC560 TO92 LN Pnp Transistor
95
51
43
47
46
45
44
50
49
48
52
050493
050492
050414
010725
010662
010661
730680
140918
140890
720494
810557
340211
141018
080103
810556
340211
141016
080103
500072
160200
151191
151190
151189
151188
151187
151186
151185
151184
151183
151001
340115
340092
**
**
**
**
**
**
*
**
**
*
**
***
***
***
**
***
***
***
**
***
***
***
***
***
***
***
***
***
***
***
*
*
10Kx4 1/8w 5% Resistor Array
10Kx8 1/8w 5% Resistor Array
2K2x4 1/8w 5% Resistor Array
20MHz Ceramic Resonator With Capacitors
220p 10% 50V X8 Cap Array
47p 10% 50V X8 Cap Array
Connection Board (Pcb#315114) (SK760)
2 Contacts Hor Male Connector
4 Contacts Hor Male Single-Strip
76N Keyboard Assembly (TP9 w/AT) (SK760)
44N Right Contacts Board (Pcb#310566)
12 Dual Contact Rubber Strip
20 Contacts Vert Female Connector
1N4148 100mA 75V Signal Diode
32N Left Contacts Board (Pcb#310565)
12 Dual Contact Rubber Strip
16 Contacts Vert Female Connector
1N4148 100mA 75V Signal Diode
Mechanical Keyboard Assembly (TP9 w/AT)
Key Return Spring (TP9 20g)
Last G Key (TP9 20g)
First E Key (TP9 20g)
B Key (TP9 20g)
A Key (TP9 20g)
G Key (TP9 20g)
F Key (TP9 20g)
E Key (TP9 20g)
D Key (TP9 20g)
C Key (TP9 20g)
Sharp Key (TP9 10g)
Adhesive Flat Cable Fixing
5mm Board Spacer
88 Notes Keyboard Assembly
720503
841071
840838
840767
111 761142
230569
141018
141011
140918
140872
100740
100605
090194
050493
050492
050414
010725
010662
010661
110 730687
140918
140890
720502
810552
340764
340211
141018
141010
080103
810551
340212
340211
141018
141010
080103
500071
160214
160213
68 151201
60 151200
69 151199
67 151198
66 151197
65 151196
64 151195
63 151194
62 151193
61 151192
340115
340092
88N
*
*
*
*
**
**
**
**
**
**
**
**
**
**
**
**
**
**
*
**
**
*
**
***
***
***
***
***
**
***
***
***
***
***
**
***
***
***
***
***
***
***
***
***
***
***
***
*
*
Keyboard Assembly with Interface (SK880)
20 Wires 30cm Length Flat Cable
20 Wires 15cm Length Flat Cable
2 Wires 30cm Length Crimp Terminal Cable
Keyboard Interface Board (Pcb#315024) (SK880)
FL5R200PNT EMI Coil For Signal
20 Contacts Vert Female Connector
6 Contacts Vert Female Connector
2 Contacts Hor Male Connector
4 Contatcs Hor Male Connector
HD6433278 Cpu F=20MHz
74HC125 Quad 3-State Buffer
BC560 TO92 LN Pnp Transistor
10Kx4 1/8w 5% Resistor Array
10Kx8 1/8w 5% Resistor Array
2K2x4 1/8w 5% Resistor Array
20MHz Ceramic Resonator With Capacitors
220p 10% 50V X8 Cap Array
47p 10% 50V X8 Cap Array
Connection Board (Pcb#315119)(SK880)
2 Contacts Hor Male Connector
4 Contacts Hor Male Single-Strip
88N Keyboard Assembly (TP10 w/AT) (SK88)
39N Left Contacts Board (Pcb#310531)
3 Dual Contacts Rubber Strip
12 Dual Contact Rubber Strip
20 Contacts Vert Female Connector
4 Contacts Vert Female Connector
1N4148 100mA 75V Signal Diode
49N Right Contacts Board (Pcb#310530)
13 Dual Contact Rubber Strip
12 Dual Contact Rubber Strip
20 Contacts Vert Female Connector
4 Contacts Vert Female Connector
1N4148 100mA 75V Signal Diode
Mechanical Keyboard Assembly (TP10)
Sharp Key Return Spring (TP10MDF/s)
Natural Key Return Spring (TP10MDF/s)
Last C Key (TP10MDF/s)
First A Key (TP10MDF/s)
Sharp Key (TP10MDF/s)
B Key (TP10MDF/s)
A Key (TP10MDF/s)
G Key (TP10MDF/s)
F Key (TP10MDF/s)
E Key (TP10MDF/s)
D Key (TP10MDF/s)
C Key (TP10MDF/s)
Adhesive Flat Cable Fixing
5mm Board Spacer
Controls Interface Board
75
761135
141018
141016
140872
140857
140854
140329
140325
100740
100645
100605
090183
090153
080103
050493
050492
050414
030246
010725
010662
010661
Controls Interface Board (Pcb#315113)
*
20 Contacts Vert Female Connector
*
16 Contacts Vert Female Connector
*
4 Contatcs Hor Male Connector
*
16 Contacts Hor Male Connector
*
16 Contacts Vert Male Connector
*
12 Contacts Hor Male Connector
*
12 Contacts Vert Male Connector
*
HD6433278 Cpu F=20MHz
*
74HC4351 8ch Analog Multiplexer
*
74HC125 Quad 3-State Buffer
*
BC550 TO92 LN Npn Transistor
*
BC327 TO92 Pnp Transistor
*
1N4148 100mA 75V Signal Diode
*
10Kx4 1/8w 5% Resistor Array
*
10Kx8 1/8w 5% Resistor Array
*
2K2x4 1/8w 5% Resistor Array
*
10u 25V 20% Low Prof Vert Electrolytic Capacitor
*
20MHz Ceramic Resonator With Capacitors
*
220p 10% 50V X8 Cap Array
*
47p 10% 50V X8 Cap Array
Cpu & Sound Generator Board
92
92
Controls Panel Board
76 810309
113 810674
171310
141018
141016
140914
140529
140362
140328
110254
100620
100614
100607
100061
090183
080743
080711
080103
070702
070551
070201
030246
010662
Controls Panel Board (Pcb#315112)(TRF)
Controls Panel Board (Pcb#315169)(SWT)
*
Copper Screen For Leds
*
20 Contacts Vert Female Connector
*
16 Contacts Vert Female Connector
*
7 Contacts Hor Female Zif Mylar Connector
*
Microswitch 12V 50mA 0.25mm
*
9 Contacts Hor Male Pass-Thru Connector
*
9 Contacts Hor Male Connector
*
Rotary Encoder With Snap
*
74HC86 Quad 2-Input Exor Gate
*
74HC74 Dual Flip-Flop
*
74HC164 8bit S To P Shift Register
*
TL072 Dual J-Fet Operational Amplifier
*
BC550 TO92 LN Npn Transistor
*
3mm Wide Diffused Green Led
*
3mm High Efficiency Red Led
*
1N4148 100mA 75V Signal Diode
*
5K Linear Rotary Potentiometer
*
10K Linear 30mm Slider Potentiometer
*
22K 20% Horizontal Linear Trimmer
*
10u 25V 20% Low Prof Vert Electrolytic Capacitor
*
220p 10% 50V X8 Cap Array
Pitch Bender & Modulation Assembly (oval wheels)
71 720499
107 720504
840726
42 340361
340331
210078
171422
171411
160166
120554
70 070701
Pitch Bender & Modulation Assembly (SK760)
Pitch Bender & Modulation Assembly (SK880)
*
9 Wires 40cm Length Flat Cable
*
Wheel Knob
*
Sheath For Spring
*
2x10mm Adhesive Black Felt (Specify mt)
*
Ferrule
*
Pitch B. & Mod. Knobs Support
*
Return Spring
*
Lock Washer
*
10K Lin. Potentiometer With Click
Pitch Bender & Modulation Assembly (new wheels)
71 720628
107 720629
840726
42 340568
340331
210264
171460
171711
171710
120276
160166
120554
70 074700
Pitch Bender & Modulation Assembly (SK760)
Pitch Bender & Modulation Assembly (SK880)
*
9 Wires 40cm Length Flat Cable
*
Wheel
*
Sheath For Spring
*
Black Felt
*
Wheel Support (SK760)
*
Wheels Reinforcment Support (SK880)
*
Wheels Support (SK880)
*
B2.9x6.5mm Screw
*
Return Spring
*
Lock Washer
*
4K7 Linear Rotative Potentiometer
730679
730246
340523
340092
171407
DC-AC Converter Assembly
*
DC-AC Converter Board (Pcb# Cs032001)
*
6.5mm Spacer
*
5mm Board Spacer
*
Shield
Cpu & Sound Generator Board (Pcb#315150) first TRF version only
Cpu & Sound Generator Board (Pcb#315150) TRF and SWT versions
*
BLM21A102STP Smd EMI Coil For Signal
*
BL02RN2-R62 EMI Coil For Signal
*
20 Contacts Vert Female Connector
*
16 Contacts Vert Female Connector
*
6 Contacts Vert Female Connector
*
4 Contacts Vert Female Connector
*
32 Contacts Vert Male Strip P=2mm
*
2 Contacts Vert Male Connector
*
44 Contacts Vert Male Strip P=2mm
*
Simm Socket 30 Pin
*
14 Contacts Vert Female Con. For Mylar Cable
*
Jumper For Contacts Strip (p=2.54mm)
*
Single In Line Vert Male Strip (specify contacts)
*
4 Contacts Vert Male Connector
*
34 Contacts Vert Male Connector
*
16 Contacts Vert Male Connector
*
12 Contacts Vert Male Connector
*
MAX709 Power Monitor With Reset
*
DISP3 QFP Digital Sound Processor (Hitachi)
*
FPGA - Video/Lcd Controller
*
MC68360EM25 QFP Cpu
*
23C32000G 32Mbit Rom "Styles"
*
MX23C6410 64Mbit Rom "Samples2"
*
MX23C6410 64Mbit Rom "Samples1"
*
KM62256CLG SOP 256Kbit SRam Ta=55nS
*
HM514280AJ 4M5bit Dram Ta=70nS
*
HM5118160ALJ 16Mbit Dram Ta=70nS
*
E28F016SV-70 1Mbit Flash Memory Ta=70nS
*
74HC125D SOIC Quad Tri-State Buffer
*
74HC04D SOIC Hex Inverter
*
AD1865R SOP 18bit D/A Converter
*
74HC245DW SOIC Octal Bus Transceiver
*
74HC08D SOIC Quad 2-Input And Gate
*
74AC125D SOIC Quad Tri-State Buffer
*
LM393 Dual Comparator
*
uPD72064 Floppy Disk Controller (first TRF version only)
*
GM82C765B Floppy Disk Controller (TRF and SWT versions)
*
DS1202 Clock Calendar
*
7805 +5V 1A Voltage Regulator
*
7905 -5V 1A Voltage Regulator
*
BC847 TO236 Smd Npn Transistor
*
BC327 TO92 Pnp Transistor
*
BC337 TO92 Npn Transistor
*
PMLL4148 Smd 100mA 75V Signal Diode
*
1N4002 1A 100V Rectifier Diode
*
2K2 20% Horizontal Linear Trimmer
*
4.194304MHz Quartz Oscillator
*
45.1584MHz Quartz Resonator
*
20MHz Ceramic Resonator With Capacitors
*
32MHz Quartz Resonator (first TRF version only)
*
16MHz Quartz Resonator (TRF and SWT versions)
*
32768Hz Quartz Resonator
2Mbyte Dram Module
*
32 Contacts Vert Female Strip P=2mm
*
HM5118160ALJ 16Mbit Dram Ta=70nS
Controls & Midi I/O Board
3
17
13
19
16
79
DC-AC Converter Assembly
74
761166
761181
231000
230527
141018
141016
141011
141010
140922
140917
140915
140913
140881
140877
140874
140873
140866
140854
140325
106003
105009
105005
105004
104037
104036
104035
104020
104010
104009
104007
103012
103010
103004
103002
103001
101502
100904
100733
100591
100731
100059
100058
091000
090153
090152
081000
080156
070160
010732
010727
010725
010718
010704
010710
761094
140923
104009
761101
751101
230569
141018
140247
140217
140216
140212
100734
100618
100035
090194
090183
080103
110300
Controls & Midi I/O Board with Battery
*
Controls & Midi I/O Board (Pcb# 315088)
**
FL5R200PNT EMI Coil For Signal
**
20 Contacts Vert Female Connector
**
8 Poles Mini Din Female Socket
**
Jack Stereo Slim Horizontal Socket
**
6 Poles Din Horizontal Female Socket
**
5 Poles Din Horizontal Female Socket
**
MAX202E RS232 Drivers/Receiver
**
74HC14 Hex Inverter Schmitt Trigger
**
6N138 Optocoupler
**
BC560 TO92 LN Pnp Transistor
**
BC550 TO92 LN Npn Transistor
**
1N4148 100mA 75V Signal Diode
*
4.8V 280mAh Nicd Battery
Analog I/O Board
6
15
14
13
730669
230569
141015
141013
140248
140219
140217
Analog I/O Board (Pcb#315117)
*
FL5R200PNT EMI Coil For Signal
*
14 Contacts Vert Female Connector
*
10 Contacts Vert Female Connector
*
4 Poles Mini Din Female Socket
*
13 Poles Din Horizontal Female Socket
*
Jack Stereo Slim Horizontal Socket
12
140207
100919
080103
075595
070613
*
*
*
*
*
Jack Horizontal Female Socket
MC33078 Dual LN Operational Amplifier
1N4148 100mA 75V Signal Diode
10K 16mm Hor Rotary Alog Potentiometer
2X10KC Potentiometer
Wiring Connections
85
770775
770773
770795
100 770865
770868
841079
841070
840628
841069
841066
840828
840806
840801
840761
840757
840607
840556
840257
840164
840166
841198
840719
840708
840803
840707
840579
Mains Cables Assembly (TRF)
Ground Connections (SK760)(TRF)
Ground Connections (SK880)(TRF)
Mains & Ground Connections (SK760)(SWT)
Mains & Ground Connections (SK880)(SWT)
16 Wires 12.5cm Length Flat Cable
34 Wires 80cm Length Flat Cable (SK760)
34 Wires 35cm Length Flat Cable (SK880)
14 Wires 20cm Length Flat Cable
3 (of 4) Wires 12.5cm Length Crimp Terminal Cable
20 Wires 7.5cm Length Flat Cable
12 Wires 5cm Length Crimp Terminal Cable
20 Wires 17.5cm Length Flat Cable
20 Wires 12.5cm Length Flat Cable
4 Wires 3cm Length Flat Cable
3 (of 4) Wires 15cm Length Crimp Terminal Cable
16 Wires 17.5cm Length Flat Cable
12 Wires 25cm Length Flat Cable
6 Wires 60cm Length Flat Cable (SK760)
6 Wires 70cm Length Flat Cable (SK880)
6 Wires 7.5cm Length Crimp Terminal Cable (SWT)
6 Wires 17.5cm Length Flat Cable (SK880)
3 (of 4) Wires 80cm Length Crimp Terminal Cable (SK880)
6 Wires 12.5cm Length Flat Cable (SK760)(TRF)
3 (of 4) Wires 50cm Length Crimp Terminal Cable (SK760)(TRF)
3 (of 4) Wires 55cm Length Crimp Terminal Cable (SK760)(SWT)
IMPORTANT:
Starting from July 1999, caused by Floppy Disk Controller IC (uPD72064) will goes out of
production:
when you replace the entire CPU & SOUND GENERATOR BOARD you must order the new
code 761181 instead of old code 761166, or:
when you replace only the IC37 on CPU & SOUND GENERATOR BOARD, if uPD72064 is
not available as spare part, you must replace it with GM82C765B (code 100591) and also
change the XT4 (16MHz code 010704) and related discrete components (see schematics).
Starting from March/April 2000, the Pitch Bender & Modulation Assembly uses new wheels,
the spare parts change as mentioned above, the graphical representation at page
3,4,5,6,7,8 shows the old version with oval wheels.
Note:
Each spare part is single quantity unless otherwise specified.
Asterisk prefix explanation:
Omitted
= First level spare part.
One asterisk = Second level, part of previous listed first level part.
Two asterisk = Third level, part of previous listed second level part.
Three asterisk = ............
Any request for not above mentioned part must encompass specific description including:
1) Model name,
2) Section name,
3) Module code,
4) Reference name,
5) Quantity number.
29 J
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