Download FMJ A32, P35 & P35/3 Amplifiers Service Manual

Service Manual
A32
Issue 1.0
FMJ A32, P35 & P35/3
Amplifiers
ARCAM
Contents List
!
Phono board L870
o Circuit description
o Component overlay
o Parts list
o Circuit diagrams
!
Amplifier & PSU board L882
o Circuit description
o Component overlay
o Parts list
o Circuit diagrams
!
Display board L928
o Component overlay
o Parts list
o Circuit diagrams
!
Preamplifier board L937
o Circuit description
o Component overlay
o Parts list
o Circuit diagrams
!
3rd Channel Amplifier board L911
o Component overlay
o Parts list
o Circuit diagrams
!
Transformer specifications
o L914TX
o L915TX
!
General assembly
o A32 - Mechanical parts list
o P35 - Mechanical parts list
o P35/3 - Mechanical parts list
1
2
3
4
5
6
8
7
D
D
C
C
Q_1
SK1
PHONO2HG
LEFT CHANNEL
L870C2_2.0.SCH
LEFT IN
+15V
Q_3
LEFT OUT
EMC
C1
100N CD
SK2
Q_5
1
0V_SIG
Q_2
RIGHT CHANNEL
L870C3_2.0.SCH
RIGHT IN
Q_4
Q_6
RIGHT OUT
0V_SIG
1
2
3
4
5
6
7
8
AMPCT8
Q_7
-15V
0V_SIG
Q_8
0V_HF
B
A
B
PCB1
DRAWING TITLE
EL1
PCB
L870PB_2
A
A85 PHONO STAGE - TOP LEVEL
Update Box
23425
UPDATE_BOX
Circuit Diagram
Notes:
01_1070
JAG
17/4/01
A & R Cambridge Ltd.
Pembroke Avenue
00_1051
JAG
22/3/01
Denny Industrial Centre
ECO No. INITIALS
DATE
Waterbeach
Date Printed
Filename
Cambridge CB5 9PB
G:\DATA\ECO\ECO AGENDA\01_1070 l870 A85 PHONO ISSUE2\L870_2.0.ddb - L870c1_2.0.PRJ 23-Apr-2001
1
2
3
4
5
6
updated pcb and scm
2
PRODUCTION ISSUE
1
DESCRIPTION OF CHANGE
Drawn by:
Sheet 1 of 3
JBR
7
ISSUE
DRAWING NO. L870C1
8
1
2
3
4
5
6
8
+15V
Q_102
+
7
C102
100U SILMIC
C104
100N PE
C119
D
R100
330R MF
0V_HF
R101
100R MF
100P PP
D
0V_SIG
R102
100R MF
C101
TR100
BC556B
TR102
BC556B
1N0 PP
TR103
BC556B
C110
TR101
BC556B
+ C100
22U EL
4N7 PP
C120
1N0 PP
C112
R109
12K MF
TR108
BC546B
10N PP AX
C111
R115
R110
12K MF
15K MF
10N PP AX
LEFT IN
C105
100N PE
7
TR107
2SA1085
R111
Q_101
1U0 PE
R108
47K MF
10
C109
100P PPW
11
SW100D
4PCO
R105
100R MF
0V_SIG
R119
22R MF
R117
C118
6
R122
39K MF
2M2 MF
10U NP
4
TL071CD
R113
100K MF
TR104
BC556B
0V_SIG
TR105
BC556B
12
R124
5K6 MF
IC100
3
2
56K MF
C
C113
LEFT OUT
2M2 MF
TR106
2SA1085
C108
470P PPW
C106
100N PE
R116
4
5
6
D100
1N4148
100K MF
C115
1N3 PP
R104
100R MF
R118
22R MF
R112
SW100B
4PCO
C
TR109
BC546B
R114
R123
10R MF 100K MF
C117
470P PPW
C116
0V_SIG
470P PPW
TR112
BC546B
TR113
BC546B
B
B
TR110
BC546B
TR111
BC546B
TR114
BC546B
D101
1N4148
D102
1N4148
R106
100R MF
R120
22R MF
+
R121
22R MF
0V_HF
C103
100U SILMIC
0V_SIG
C107
100N PE
Q_103
-15V
DRAWING TITLE
A
A
A85 PHONO STAGE - LEFT CHANNEL
23425
1
2
3
4
Circuit Diagram
Notes:
01_1070
JAG
17/4/01
A & R Cambridge Ltd.
Pembroke Avenue
00_1051
JAG
22/3/01
Denny Industrial Centre
ECO No. INITIALS
DATE
Waterbeach
Date Printed
Filename
Cambridge CB5 9PB
23-Apr-2001
G:\DATA\ECO\ECO
AGENDA\01_1070
l870
A85
PHONO
ISSUE2\L870_2.0.ddb
L870C2_2.0.SCH
5
6
updated pcb and scm
2
PRODUCTION ISSUE
1
DESCRIPTION OF CHANGE
Drawn by:
JBR
7
Sheet 2 of 3
DRAWING NO. 8L870C2
ISSUE
1
2
3
4
5
6
8
+15V
Q_202
+
7
C202
100U SILMIC
C204
100N PE
C219
D
R200
330R MF
0V_HF
R201
100R MF
100P PP
D
0V_SIG
R202
100R MF
C201
TR200
BC556B
TR202
BC556B
1N0 PP
C210
TR203
BC556B
TR201
BC556B
4N7 PP
C220
+ C200
22U EL
1N0 PP
C212
R209
12K MF
TR208
BC546B
10N PP AX
C211
R215
R210
12K MF
15K MF
10N PP AX
RIGHT IN
C205
100N PE
2
3
1
7
Q_201
56K MF
1U0 PE
IC200
3
C218
10U NP
R213
100K MF
TR204
BC556B
100P PPW
R205
100R MF
0V_SIG
0V_SIG
TR205
BC556B
9
8
7
C209
470P PPW
R222
39K MF
2M2 MF
2
TL071CD
R219
22R MF
R217
6
4
SW100CR224
4PCO 5K6 MF
C
C213
RIGHT OUT
2M2 MF
TR207
2SA1085
R211
R208
47K MF
C206
100N PE
R216
1N3 PP
TR206
2SA1085
R204
100R MF
D200
1N4148
100K MF
C215
C208
R218
22R MF
R212
SW100A
4PCO
C
TR209
BC546B
R214
R223
10R MF 100K MF
C216
470P PPW
0V_SIG
C217
470P PPW
TR212
BC546B
TR213
BC546B
B
B
TR210
BC546B
TR211
BC546B
TR214
BC546B
D201
1N4148
D202
1N4148
R206
100R MF
R220
22R MF
+
R221
22R MF
0V_HF
C203
100U SILMIC
0V_SIG
C207
100N PE
Q_203
-15V
DRAWING TITLE
A
A
A85 PHONO STAGE - RIGHT CHANNEL
23425
1
2
3
4
Circuit Diagram
Notes:
01_1070
JAG
17/4/01
A & R Cambridge Ltd.
Pembroke Avenue
00_1051
JAG
22/3/01
Denny Industrial Centre
ECO No. INITIALS
DATE
Waterbeach
Date Printed
Filename
Cambridge CB5 9PB
23-Apr-2001
G:\DATA\ECO\ECO
AGENDA\01_1070
l870
A85
PHONO
ISSUE2\L870_2.0.ddb
L870C3_2.0.SCH
5
6
updated pcb and scm
2
PRODUCTION ISSUE
1
DESCRIPTION OF CHANGE
Drawn by:
JBR
7
Sheet 3 of 3
DRAWING NO. 8L870C3
ISSUE
2
3
4
5
6
L882C3
L882C3_4.1.SCH
L SIG
0V_SIG
0V_LS_L
0V_HF_L
+49V
-49V
D
INPUT
0V_SIG
0V_LS
0V_HF
VPOS
VNEG
3
0V_SIG
VIPROT_L
DCPROT_L
LS L
VIPROT
DCPROT
OUTPUT
INPUT
0V_SIG
0V_LS
0V_HF
VPOS
VNEG
VIPROT_R
DCPROT_R
LS R
VIPROT
DCPROT
OUTPUT
STANDBY
VIPROT_L
VIPROT_R
0V_TRIG
DCPROT_L
DCPROT_R
L SIG
R SIG
2
1
SK104B
FROM PREAMP
0V_LS_L
TP102
SK104A
LS R
F
N
TP100
EMC
PL101
D100
1N4003F
4
5
SK105
PHONO4G
R103
330R 1W CF
TP119
6
7
R104
330R 1W CF
TP120
HPSKT
2
1
SK107
1
2
3
4
0V_LS_R
7
0V_LS_L
0V_PSU
RLY101C
RLY G5Z-2A-E
TR101
BD179
TR100
BD179
D101
1N4003F
R101
SPKR1 ON
100R SM
R102
SPKR2 ON
100R SM
AMPCT4
R105
R106
100R 1W CF 100R 1W CF
R107
220R SM
R108
220R SM
6
0V_SIG
5
D
2
C
TP118
2
3
1
0V_SIG
4
RLY100C
RLY G5Z-2A-E
AMPCT4
N
PHONO4G
SP100
STAR_8
F
C100 0V_SIG
1N0 SM
AMPCT4
+5V_D
+49V
-49V
THERMPROT
VIPROT
AC PRESENT
DCPROT
REMOTE
TRIGGER
SK106
1
2
3
4
PL100
1
8
0V_HF_L
0V_D
+5V(D)
0V_PSU
VPOS
PWRON
VNEG
VIPROT_L
THPROT_uC
VIPROT_R
VIPROT_uC
0V_TRIG
AC_PRES
DCPROT_L DCPROT_uC
DCPROT_R
RC5 IN
TRG IN
3
2
1
L882C2
L882C2_4.1.SCH
0V_HF_R
LS L
TP101
SK102
1
2
3
4
1
0V_D
6
TP121
+49V
SW100A
2PCO
C
5
0V_TRIG
0V_D
0V_PSU
L882C4
L882C4_4.1.SCH
R SIG
0V_SIG
0V_LS_R
0V_HF_R
+49V
-49V
8
7
4
1
SW100B
2PCO
0V_D
INTEGRATED / PRE-POWER
MODE SELECT SWITCH
SK100A
RLY100A
LS L
SK100B
RLY101A
Top+
TP111
+5V_D
TP113
RLY G5Z-2A-E
Bot+
TP115
RLY G5Z-2A-E
PCB
0V_LS_L
PCB
B
TopSK103
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R100
+49V
B
Bot-
CAMCON_G
CAMCON_G
L882PB_4
10R MF
EL
STANDBY
SPKR1 ON
SPKR2 ON
THERMPROT
VIPROT
DCPROT
AC PRESENT
TRIGGER
REMOTE
0V_D
TP103
TP104
TP105
TP106
TP107
TP108
TP109
TP110
TP117
SK101A
RLY100B
LS R
Top+
TP112
TP114
RLY G5Z-2A-E
EARTH LEAD
8M101
EARTH LEAD
SK101B
RLY101B
Bot+
TP116
RLY G5Z-2A-E
0V_LS_R
Top-
Bot-
CAMCON_G
CAMCON_G
FFC 14W 2.54MM VER
8K7014
DRAWING TITLE
A
A
A85 amplifier and PSU - top sheet
23425
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
1
2
3
4
Circuit Diagram
Notes:
Filename
02_E062
JBR
20/3/02
LDO REG FITTED TO IC201
02_E035
JBR
4/2/2002
FUSE VALUES UPRATED TO T4A
ECO No.
INITIALS
20-Mar-2002
5
6
4.0
DESCRIPTION OF CHANGE
Drawn by:
Date Printed
L882C1_4.1.PRJ
DATE
4.1
J Reckless
7
Sheet 1 of 4
DRAWING NO.
ISSUE
L882C1
8
1
2
3
4
5
6
7
8
NEUTRAL
SK204
7
2
6
1
5
TP203
HS200
TO220HS08REG
TX200
1 0V
MOLEXPWR8
F202
T750mA SM
LIVE
C205
3N3 MAINS
EMC Shield
Green
1
TP200
NEUTRAL
SK202
CAGECLAMP1
NF
VR200
VDR 115V
C207
F200
TP202
3N3 MAINS
T4A
C206
3N3 MAINS
BC200
TOOLING4.1
SW200B
VOL SEL SLIDE
L
L
E
N
SH200
EMCMAINS
E
NEUTRAL
TP201
SW200A
VOL SEL SLIDE
F201
TP210
3N3 MAINS
EARTH
C234
Vout
O
+5V(D)
TP205
C225
100N CD
+
C226
100N CD
+ C228
1000u 10V
C227
3300u 25V
D201
1N4003F
C208
LIVE
Vin
D203
1N4003F
NF
VR201
VDR 115V
DPDT5V
TP207
I
D202
1N4003F
C224
100N CD
0V
6
7
9V
RLY200B
LIVE
TP206
2 115V
3
D200
1N4003F
+5V_D
G
DPDT5V
N
IC201
L4940V5
TP204
5
9V
RLY200A
D
9VRMS
HS
SK203
IEC3 NO RIVETS
8
3
GND
D
4
0V_D
0V
8
4 115V
TX 3VA 9301
0V_D
T4A
MAINS WIRING AND AUXILIARY SUPPLY
220N X2 CLASS
R231
1M5 VR25
+5V_D
R219
1K8 SM
9VRMS
IC202E
C
TR204
BC849B
+49V
1
+
SK200
6
2
5
74HC14D
~
2
~
0V_PSU
+ C210
10,000u 63V
4
D206
BAS16W SM
SK205
1
2
3
4
5
6
C211
100N PC
0V_PSU
+ C229
22U EL
MICROPROCESSOR SIGNALS INTERFACE
0V_D
AMPCT6
4
1
3
-
3
AC_PRES
10K SM
VPOS
+ C209
10,000u 63V
C
R220
10
10R SM
R211
TP208
BR200
BRGBU8D
11
C212
100N PC
MOLEXPWR6
+5V_D
TP209
VNEG
POWER AMP SUPPLY
14
TH200
PTH90DEG
C201
100N SM
IC202G
74HC14D
C202
100N SM
IC202F
13
12
7
-49V
CARRIER FILTER AND DEMODULATOR
THPROT_uC
74HC14D
+5V_D
R209
10K SM
TRG IN
R221
10R SM
R205
1K0 SM
R223
10K SM
0V_D
IC200A
2
B
TP211 470R SM
Near to PCB
JACK3.5X2
3
100K SM
L200
27mH
R224
1K8 SM
C200
680P PP
+5V_D
IC200C
LM393A SM
LM393A SM
DZ204
4V7 350MW SM
R227
1K0 SM
8
1
R228
R229
100K SM
C232
100N SM
+ C233
10U EL
B
IC202A
4
R226
SK201A
R201
VIPROT_L
MODULATED RC5
REMOTE CONTROL INPUT
R230
1K5 SM
R208
10K SM
VIPROT_R
5
R202
1K0 SM
R222
6
10K SM
LM393A SM
R225
1K8 SM
1
2
TR205
BC856B
R213
C203
100N SM
4K7 SM
C214
10N SM
74HC14D
IC202B
C230
10N SM
IC200B
7
RC5 IN
1K0 SM
3
VIPROT_uC
4
C215
10N SM 74HC14D
R214
4K7 SM
R206
1K0 SM
C219
10N SM
C218
10N SM
C231
1N0 SM
0V_D
0V_D
+5V_D
0V_TRIG
+49V
R218
10K SM
+5V_D
RLY200C
DPDT5V
TR200
BD179
D205
BAS16W SM
R200
1K0 SM
STANDBY RELAY CONTROL
TR202
FMMT597
1K0 SM
DZ207
15V 350MW SM
+ C223
10U EL
DCPROT_R
5
6
TR206
BC856B
R215
C204
100N SM
4K7 SM
C216
10N SM
R204
1K0 SM
R217
10R SM
74HC14D
9
DCPROT_uC
8
C217
10N SM 74HC14D
R216
4K7 SM
R207
1K0 SM
C221
10N SM
C220
100N SM
TP212
SK201B
R210
10K SM
Far from PCB
R203
IC202D
TR201
FMMT497
C213
10N SM
TRIGGER OUTPUT
APPROX 13.5VDC
60mA MAX CURRENT
A
IC202C
DCPROT_L
+ C222
10U EL
0V_D
A
0V_D
JACK3.5X2
PWRON
R212
DRAWING TITLE
0V_TRIG
TR203
FMMT497
A85 amplifier - power supply and microcontroller interface
0V_TRIG
4K7 SM
C235
CAMCON_G
SK101C
23425
CHASS
1N0 SM
0V_D
1
2
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
3
4
5
Circuit Diagram
Notes:
Filename
02_E062
JBR
20/3/02
LDO REG FITTED TO IC201
02_E035
JBR
4/2/2002
FUSE VALUES UPRATED TO T4A
ECO No.
INITIALS
L882C2_4.1.SCH
6
DATE
20-Mar-2002
7
4.0
DESCRIPTION OF CHANGE
Drawn by:
Date Printed
4.1
J Reckless
Sheet 2 of 4
ISSUE
DRAWING NO.
8
L882C2
1
2
3
4
5
6
7
8
VPOS
D
D
R319
100R SM
R315
100R SM
R300
10K SM
R316
100R SM
PRE DRIVER
PNP CURRENT MIRROR
TR300
FMMT597
TR310
FMMT497
TR301
FMMT597
R301
10K SM
+
C300
100U EL
DZ300
15V 350MW SM
TR309
FMMT497
R321
22R SM
TR302
FMMT597
TR321
FMMT597
OUTPUT STAGE
R338
150R SM
0V_HF
3K3 SM
TR311
FMMT497 C317
TR318
SAP15N
6
5
0V_SIG
INPUT
V TO I AMP
R324
3
1K0 SM
DZ302
4V7 350MW SM
2
0V_SIG
IC300A
1
TL072CD
R327
22K SM
DZ303
4V7 350MW SM
TP304
+
R343
100R SM
D303
1N4003F
TR312
FMMT497
TR313
FMMT497
R349
100R SM
R355
6K8 SM
R345
0R0 SM
R340
100K SM
PL300
1
2
+ C303
100U EL
R351
L300
2U2H LAC SMALL
DC OFFSET SIGNAL
TO MICRO
+ C304
100U EL
C312
10N SM
R326
1K0 SM
+ C306
100U EL 100V
TP306
BOOTSTRAP
R344
100R SM
TR305
FMMT597
R346
0R0 SM
R304
10K SM
R348
R342
TR304
FMMT597
D304
1N4003F
100R SM
C308
TR319
SAP15P
100P SM
TR320
FMMT497
0V_SIG
R339
150R SM
OUTPUT STAGE
TR306
FMMT597
ZOBEL NETWORK
DC OFFSET
DETECTION
D302
BAS16W SM
C313
R307
10K SM
TP308
R336
22K SM
C319
100N PE
0V_LS
R308
22K SM
R302
10K SM
100N SM
0V_HF
0V_LS
TR316
FMMT497
DZ306
4V7 350MW SM
V-I PROTECTION
R310
4K7 SM
R313
10K SM
C320
100U NP
R314
10K SM
C315
100N SM
0V_HF
C301
100U EL
R350
5R6 2W CF
R303
10K SM
330R SM
3K3 SM
C
10R MF
MEASURE
BIAS
(SET TO 16mV)
D300
BAS16W SM
DCPROT
+ C318
10U EL
R354
1K0 SM
R335
DZ305
4V7 350MW SM
+ C305
10U EL
100R SM
470R 2W MF 5%
R353
TR303
FMMT597
C314
100N SM
DZ301
15V 350MW SM
R352
470R 2W MF 5%
C311
100N PC
0V_SIG
0V_HF
VIPROT
R306
10K SM
OUTPUT
TP303
C309
100N SM
TP307
0V_HF
1K8 SM
0V_SIG
0V_SIG
R325
1K0 SM
RV300
100R PSET
R332
R337
22R SM
VI PROTECT
SIGNAL TO MICRO
R305
10K SM
ADJ BIAS
1M0 SM
TR322
FMMT497
C316
470P PPW
R347
330R SM
+ C302
100U EL 100V
R330
R331
1K5 SM
R322
22R SM
R341
BOOTSTRAP
TL072CD 0V_SIG
TP302
8
INPUT FILTER
R328
4K7 SM
4
C
R334
22K SM
TP305
DC SERVO
IC300B
7
R329
4K7 SM
D301
BAS16W SM
100P SM
470N PE
C310
100N SM
V-I PROTECTION
C307
R333
R323
22R SM
0V_HF
0V_HF
R309
10K SM
TR314
FMMT497
TR315
FMMT497
NPN CURRENT MIRROR
R317
100R SM
B
TR307
FMMT597
TR308
FMMT597
PRE DRIVER
R318
100R SM
R311
10K SM
B
TR317
FMMT497
R320
100R SM
R312
10K SM
VNEG
A
A
DRAWING TITLE
A85 amplifier - power output stage left
23425
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
1
2
3
4
5
Circuit Diagram
Notes:
Filename
02_E062
JBR
20/3/02
LDO REG FITTED TO IC201
02_E035
JBR
4/2/2002
FUSE VALUES UPRATED TO T4A
ECO No.
INITIALS
L882C3_4.1.SCH
6
DATE
20-Mar-2002
7
4.0
DESCRIPTION OF CHANGE
Drawn by:
Date Printed
4.1
J Reckless
Sheet 3 of 4
ISSUE
DRAWING NO.
8
L882C3
1
2
3
4
5
6
7
8
VPOS
D
D
R419
100R SM
R415
100R SM
R400
10K SM
R416
100R SM
PRE DRIVER
PNP CURRENT MIRROR
TR400
FMMT597
TR410
FMMT497
TR401
FMMT597
R401
10K SM
+
C400
100U EL
DZ400
15V 350MW SM
TR409
FMMT497
R421
22R SM
TR402
FMMT597
TR421
FMMT597
OUTPUT STAGE
R438
150R SM
0V_HF
3K3 SM
TR411
FMMT497 C417
TR418
SAP15N
6
5
0V_SIG
V TO I AMP
R424
INPUT
3
1K0 SM
DZ402
4V7 350MW SM
0V_SIG
IC400A
1
TL072CD
TP404
R427
22K SM
DZ403
4V7 350MW SM
R422
22R SM
R437
22R SM
+
DZ401
15V 350MW SM
R452
470R 2W MF 5%
R443
100R SM
D403
1N4003F
TR412
FMMT497
TR413
FMMT497
R449
100R SM
DZ405
4V7 350MW SM
+ C405
10U EL
100R SM
R445
0R0 SM
R440
100K SM
PL400
1
2
+ C403
100U EL
R451
L400
OUTPUT
R455
6K8 SM
+ C404
100U EL
C412
10N SM
C411
100N PC
R426
1K0 SM
+ C406
100U EL 100V
TP406
BOOTSTRAP
3K3 SM
TR419
SAP15P
100P SM
TR420
FMMT497
R444
100R SM
TR405
FMMT597
R446
0R0 SM
R404
10K SM
R448
R442
TR404
FMMT597
D404
1N4003F
100R SM
R439
150R SM
OUTPUT STAGE
R436
22K SM
TR406
FMMT597
ZOBEL NETWORK
DC OFFSET
DETECTION
TP408
D402
BAS16W SM
C413
R407
10K SM
0V_LS
100N SM
0V_HF
0V_LS
TR416
FMMT497
DZ406
4V7 350MW SM
V-I PROTECTION
C419
100N PE
R408
22K SM
R402
10K SM
R410
4K7 SM
R413
10K SM
C420
100U NP
R414
10K SM
C415
100N SM
0V_HF
C401
100U EL
R450
5R6 2W CF
R403
10K SM
330R SM
C408
0V_SIG
2U2H LAC SMALL
DC OFFSET SIGNAL
TO MICRO
DCPROT
+ C418
10U EL
R454
1K0 SM
R435
C
10R MF
MEASURE
BIAS
(SET TO 16 mV)
D400
BAS16W SM
470R 2W MF 5%
R453
TR403
FMMT597
C414
100N SM
VIPROT
R406
10K SM
0V_HF
1K8 SM
0V_SIG
0V_HF
R425
1K0 SM
RV400
100R PSET
TP403
C409
100N SM
TP407
R432
0V_SIG
0V_SIG
VI PROTECT
SIGNAL TO MICRO
R405
10K SM
ADJ BIAS
1M0 SM
TR422
FMMT497
C416
470P PPW
R447
330R SM
+ C402
100U EL 100V
R430
R431
1K5 SM
2
R441
BOOTSTRAP
TL072CD 0V_SIG
TP402
8
INPUT FILTER
R428
4K7 SM
4
C
R434
22K SM
TP405
DC SERVO
IC400B
7
R429
4K7 SM
D401
BAS16W SM
100P SM
470N PE
C410
100N SM
V-I PROTECTION
C407
R433
R423
22R SM
0V_HF
0V_HF
R409
10K SM
TR414
FMMT497
TR415
FMMT497
NPN CURRENT MIRROR
R417
100R SM
B
TR407
FMMT597
TR408
FMMT597
PRE DRIVER
R418
100R SM
R411
10K SM
B
TR417
FMMT497
R420
100R SM
R412
10K SM
VNEG
A
A
DRAWING TITLE
A85 amplifier - power output stage right
23425
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
1
2
3
4
5
Circuit Diagram
Notes:
Filename
02_E062
JBR
20/3/02
LDO REG FITTED TO IC201
02_E035
JBR
4/2/2002
FUSE VALUES UPRATED TO T4A
ECO No.
INITIALS
L882C4_4.1.SCH
6
DATE
20-Mar-2002
7
4.0
DESCRIPTION OF CHANGE
Drawn by:
Date Printed
4.1
J Reckless
Sheet 4 of 4
ISSUE
DRAWING NO.
8
L882C4
1
2
3
4
5
6
8
7
A32 FMJ DISPLAY PCB
D
D
L928CT_B.1
L928CT_2_B.3.SCH
MICRO
FD_1
FD_2
FIDUCIAL
FIDUCIAL
FIX7
FIX2
FIX10
FIXING HOLE 3.5
FIXING HOLE 3.5
FIXING HOLE 3.5
FIX5
FIX6
FIX13
FIXING HOLE 3.5
FIXING HOLE 3.5
FIXING HOLE 3.5
C
C
CHASSIS 1
(BY SK3)
C39
1N0 SM
C40
1N0 SM
0V_D
0V_D
C41
1N0 SM
C43
1N0 SM
0V_D
0V_D
0V_D
FIX1
FIX8
FIX9
FIX3
FIXING HOLE 3.5
FIXING HOLE 3.5
FIXING HOLE 3.2
FIXING HOLE 3.5
C38
1N0 SM
C44
1N0 SM
0V_D
FIX11
FIX12
FIXING HOLE 3.5 FIXING HOLE 3.2
C45
1N0 SM
CHASSIS 2
(BY SK1)
C46
1N0 SM
0V_D
0V_D
C47
1N0 SM
0V_D
C48
1N0 SM
CHASSIS 3
(BY SK2)
0V_D
C37
1N0 SM
C49
1N0 SM
0V_D
0V_D
PCB1
PCB
B
B
L928PB_B
DRAWING TITLE
A
A
A32 FMJ AMP DISPLAY PCB
23425
WAF
Circuit Diagram
Notes:
26/9/01
2
3
4
5
6
B.3
JBR
10/9/01
PRE PRODUCTION RELEASE
B.2
WAF
9/08/01
UPDATED PROTOTYPE
B.0
INITIAL PROTOTYPE
A.0
A & R Cambridge Ltd.
Pembroke Avenue
CL
25/04/01
Denny Industrial Centre
ECO No. INITIALS
DATE
Waterbeach
Date Printed
Filename
Cambridge CB5 9PB
10-Oct-2001
J:\Released_Documents\Native_format_files\Protel_DDB\L928_B.3.Ddb - Documents\L928CT_1_B.3.PRJ
1
STICKY PADS RENUMBERED
DESCRIPTION OF CHANGE
Drawn by:
Sheet 1 of 2
CL
7
DRAWING NO.
ISSUE
L928CT1
8
7
MODE
D
DOWN
DVD
UP
ENTER
POWER
SELECT
CD
TUNER
VCR
SP2
TAPE
SP1
SP4
SP2
SP5
LED
SPACER
SP9
LED
SPACER
SP10
SP1
R1
R2
R3
R4
R5
R6
R7
R8
10K SM
10K SM
10K SM
10K SM
10K SM
10K SM
10K SM
10K SM
SW6
SW12
SW11
SW8
SW7
SW13
SW14
SW15
TACTSW A1505 TACTSW A1505 TACTSW A1505 TACTSW A1505 TACTSW A1505 TACTSW A1505 TACTSW A1505 TACTSW A1505
R68
R9
R10
R11
R12
R13
R14
R15
R16
10K SM
10K SM
10K SM
10K SM
10K SM
10K SM
10K SM
10K SM
10K SM
SW17
SW16
SW1
SW4
SW2
SW5
SW3
SW10
SW9
TACTSW A1505 TACTSW A1505TACTSW A1505 TACTSW A1505 TACTSW A1505 TACTSW A1505 TACTSW A1505 TACTSW A1505 TACTSW A1505
R17
330R SM
R18
330R SM
Q_65
LED7
Q_66
LED8
R19
330R SM
R20
330R SM
Q_67
LED6
R21
330R SM
Q_68
LED3
R22
330R SM
Q_69
LED10
R25
330R SM
Q_70
LED9
R24
330R SM
Q_71
LED1
R23
330R SM
Q_72
LED4
R31
330R SM
Q_73
LED2
D
Q_74
LED5
LED GREEN
LED GREEN
LED11
LED GREEN
LED GREEN
LED GREEN
LED GREEN
IND7
IND3
IND4
IND9
IND6
IND5
IND1
IND8
IND2
IND10
BUT16
BUT15
BUT5
BUT10
BUT1
BUT14
BUT12
BUT9
BUT8
BUT7
BUT6
BUT13
0V_D
BUT4
R34
150R SM
BUT3
R33
330R SM
BUT2
R30
10K SM
IND11
IND12
R29
10K SM
TONE
BUT17
Q2
BC847B
Q1
BC847B
RECORD
SP3
SPACER F195SPACER F195SPACER F195SPACER F195SPACER F195SPACER F195SPACER F195SPACER F195SPACER F195SPACER F195
+5V
BUT11
AV
PHONO/
AUX
SP6
LED
SPACER
SP8
LED
SPACER
SP7
8
LED
SPACER
6
LED
SPACER
5
LED
SPACER
4
LED
SPACER
3
LED
SPACER
2
LED
SPACER
1
LED GREEN
LED GREEN
LED GREEN
LED GREEN
IC7B
5
0V5
Q_59
7 SAMDATA
+5V
R47
4K7 SM
0V_D
1
SAMBUSY
2
Q4
BC847B
1
2
Q_53
R45
10K SM IC8B
0V5
2
RECEIVE
SAMRX2Q_115
1
3
0V5
7
5
0V_D
LM393A SM
LM393A SM
2
IR RX
SUPPORT PAD
O/P
O/P
C9
IR RX SUPPORT PAD
0V_D
Case
Case
Q_47
RX1
100N SM
+5V
VIPROT
DCPROT
ACPRESENT
SEL8
SEL9
MUTE
TONE
IRIN
PHASEB
PHASEA
PLACE ONE ON TOP OF
PR_VCC
PR_RXD
RECEIVE
Q_55
VPROG
PB0
2
4
6
8
10
12
14
PR_VPP
PR_PMODE
+5V
IR RX
SUPPORT PAD
THE OTHER UNDER RX1
0V_D
PR_GND
PR_TXD
1
3
5
7
9
11
13
TRANSMIT
RESPIN
0V_D
SW18
ALPS_ENCODER
A
B
IR RX SUPPORT PAD
1
2
+5V
VFD_VDD2
Q_82
DISPLAY CRADLE E916PM
Q_49
IC11A
AD8532 SM
+5V
1
SBX1610-52/PIC-26043TM2
SP103
Programming adaptor
SK4
R75
10K SM
0V_D
C6
100N SM
Graphics Display
DISPLAY CRADLE E916PM
DC2
DISPLAY CRADLE
E916PM
SP
R44
100K SM
+5V
10K SM
+5V
Q_54
Q3
BC847B
R76
IROUT
6
0V_D
DC1
DISPLAY CRADLE
E916PM
R46
1K2 SM
3
2
Q_50
Q_58
R57
10K SM
Q_57
PR_MD
PR_RESET
Q_48
R59
7
6
C
Q_80 0R0 SM
5
F2CLOCK R53
Q_78
100R SM
PHASEA
PHASEB
0V_D
R58
1
F1CLOCK R52
R56
Q_79
100R SM
10K SM
10K SM R27
0R0 SM R48
R49
10K SM
3
LM393A SM
R38
1K2 SM
10K SM R28
R37
10K SM IC6A
IC7A
LM393A SM
F1CLOCK
F2CLOCK
IRIN IRIN
Q_35
+5V
C
R73
10K SM
3
2V7
6
LM393A SM
R42
100K SM
IC8A
R74
10K SM
F2
F2
F2
SAMTX2
5
+5V
GND
GND
R41
100K SM
2K2 SM
15
16
17
+
R43
100K SM
10K SM
R40
4K7 SM
IC6B
TRANSMIT R50
SAMHOLD
2V7
10K SMQ_34
+5V
10K SM
DISPLAT
DISPBLK
DISPCLK
+5V
R39
3
10U EL SM
C11
R36
F1 to F2 = 4Vac 150mA
VDD2 = 40Vdc 20mA
Q_83
Q_84
Q_85
LEFTAUDIO
R35
DISP1
B1013
SIN
VDD1
SOUT
LAT
BLK
CLK
VSS
VSS
VDD2
+5V
0V_D
SP101
DOUBLE SIDED
STICKY PAD
10 X 15MM
STICKY PAD DS 10X15MM
SP102
DOUBLE SIDED
STICKY PAD
10 X 15MM
STICKY PAD DS 10X15MM
+5V
1
2
3
LM393A SM
0V_D
Q_22
+5V
+5V
G
R
Q_21
4
5
6
7
8
9
10
11
12
2V7
DISPDAT
+5V
6
F1
F1
F1
7
LED RED/GRN 3MM
Q_81 0R0 SM
IC11B
AD8532 SM
SAMHOLD
C
3
0V_D
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
+5V
SLOAD
SCLK
C32
10P SM
Q_42
0V_D
0V_D
Q_99
Q_100
Q_101
Q_102
Q_103
Q_104
Q_105
Q_106
Q_107
Q_108
Q_109
Q_110
Q_111
Q_112
Q_113
Q_114
Q_97
Q_96
Q_95
Q_94
Q_93
Q_92
IND7
BUT10
IND5
BUT15
IND6
BUT16
IND11
IND12
BUT4
IND2
BUT5
IND1
BUT1
BUT3
0V_D
WP
SDA
SCL
7
5
6
10K SM
IND10
BUT13
IND8
BUT11
IND4
BUT14
IND9
BUT12
C5
100N SM
R32
A2
A1
A0
VDD
4
BUT9
BUT8
BUT7
BUT6
BUT2
IND3
3
2
Q_39
C7
4
1
0V_D
(FIT CLOSE TO SK1)
Vcc
Res
Gnd
Gnd
C63B 100PX4 SM
8
C8
100N SM
3
2
1
A
0V_D
C63A 100PX4 SM
0V_D
To preamp board
SK3
22 Q_1
SEL1
21 Q_2
SEL2
20 Q_3
SEL3
19 Q_4
SEL4
18 Q_5
SEL5
17 Q_6
SEL6
16 Q_7
SEL7
15 Q_8
SEL8
14 Q_9
SEL9
13
12 Q_10 LEFTAUDIO
11
10 Q_11
MUTE
9
Q_12
TONE
8
Q_117
7
Q_14 TONEID
6
Q_118
5
Q_15
SDATA
4
Q_119
3
Q_16
SLOAD
2
Q_120
1
SCLK
Q_17
C50A 100PX4 SM
C50B 100PX4 SM
C50C 100PX4 SM
C50D 100PX4 SM
C51A 100PX4 SM
C51B 100PX4 SM
C51C 100PX4 SM
C51D 100PX4 SM
C52A 100PX4 SM
C52B 100PX4 SM
C52C 100PX4 SM
C52D 100PX4 SM
C53A 100PX4 SM
C53B 100PX4 SM
C53C 100PX4 SM
C53D 100PX4 SM
C54A 100PX4 SM
C54B 100PX4 SM
C54C 100PX4 SM
C54D 100PX4 SM
C55A 100PX4 SM
C55B 100PX4 SM
C55C 100PX4 SM
C55D 100PX4 SM
FFC 22W 1MM HOR
0V_D
+SUP
3
4
Q5
BD179 NPN TO-126 VFD_VDD2
Q_23
+5V
R54
3K3 MF
Q_64
+
D1
ZENER 400MW 33V
C28
10U EL SM
Q_75
+
IC6C
LM393A SM
C10
100N SM
IC7C
LM393A SM
C15
100N SM
IC8C
LM393A SM
C16
100N SM
IC11C
AD8532 SM
C25
100N SM
+ C29
100U EL SM
Q_116
C26
10U EL SM
0V_D
A
0V_D
DRAWING TITLE
A32 FMJ AMP DISPLAY PCB
23425
0V_D
2
FFC 14W 2.54MM HOR
0V_D
CHASSIS 1
1
Q_129
0V_D
DS1233 SM
100N SM
IRIN
CHASSIS 2
0V_D
Q_40
VSS
Q_86
Q_87
Q_88
Q_89
Q_90
Q_91
IC2
+5V
Q_98
Q_41
4
SAMTX2
SAMRX2
BUT17
B
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
+5V
R51
100R SM
IC5
24C02 SM
100N SM
C4
100N SM
+ C34
220U EL
H8/3048F
0V_D
+5V
+ C33
220U EL
8
C31
10P SM
TONEID
SDATA
Q_44
C12
RESPIN
4
100R SM
100R SM
C2
18P SM
Q_38
STANDBY
Q_122
SP1ON
Q_123
SP2ON
THERMPROTQ_124
Q_125
VIPROT
Q_126
DCPROT
ACPRESENT Q_127
Q_128
8
R67
Q_43
+5V
4
R66
0V_D
Q_121
8
Q_45
100R SM
X1
16MHZ SM
+SUP
4
DISPBLK
DISPLAT
R65
Q_37
8
DISPCLK
RECEIVE
To power amp / PSU
SK1
14
C60D 100PX4 SM
13
C60C 100PX4 SM
12
C60B 100PX4 SM
11
C60A 100PX4 SM
10
C61D 100PX4 SM
9
C61C 100PX4 SM
8
C61B 100PX4 SM
7
C61A 100PX4 SM
6
C62D 100PX4 SM
5
C62C 100PX4 SM
4
C62B 100PX4 SM
3
C62A 100PX4 SM
2
C63D 100PX4 SM
1
C63C 100PX4 SM
C1
18P SM
4
100R SM
H8/3048F
0V_D
STANDBY
SP1ON
SP2ON
THERMPROT
2R2 SM
TRANSMIT
+5V
AMPCT5
2R2 SM
R69
Q_46
10K SM
2R2 SM
R70
R64
Q_20
2R2 SM
R71
DISPDAT
MD2
MD1
MD0
P6.6/LWR
P6.5/HWR
P6.4/RD
P6.3/AS
Vcc
XTAL
EXTAL
Vss
NM1
RES
STBY
CLKOUT
P6.2/BACK
P6.1/BREQ
P6.0/WAIT
Vss
P5.3/A19
P5.2/A18
P5.1/A17
P5.0/A16
P2.7/A15
P2.6/A14
R26
Q_56
R72
Q_52
Vcc
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
Vpp/RESO
Vss
TxD0/P9.0
TxD1/P9.1
RxD0/P9.2
RxD1/P9.3
IRQ4/SCK0/P9.4
IRQ5/SCK1/P9.5
D0/P4.0
D1/P4.1
D2/P4.2
D3/P4.3
Vss
D4/P4.4
D5/P4.5
D6/P4.6
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
+5V
D2
BAS16W SM
1
2
3
4
5
DS1233
D3
BAS16W SM
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
Vss
P8.4/CS0
P8.3/IRQ3
P8.2/IRQ2
P8.1/IRQ1
P8.0/IRQ0
AVss
P7.7/AN7/DA1
P7.6/AN6/DA0
P7.5/AN5
P7.4/AN4
P7.3/AN3
P7.2/AN2
P7.1/AN1
P7.0/AN0
Vref
AVcc
PB0
SEL7
SEL6
SEL5
SEL4
SEL3
SEL2
SEL1
VPROG
Q_51
B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Q_19
SAMDATA
SAMBUSY
+5V
C13
100N SM 0V_D
SK2
0V_D
D7/P4.7
D8/P3.0
D9/P3.1
D10/P3.2
D11/P3.3
D12/P3.4
D13/P3.5
D14/P3.6
D15/P3.7
Vcc
A0/P1.0
A1/P1.1
A2/P1.2
A3/P1.3
A4/P1.4
A5/P1.5
A6/P1.6
A7/P1.7
Vss
A8/P2.0
A9/P2.1
A10/P2.2
A11/P2.3
A12/P2.4
A13/P2.5
0V_D
R55
10K SM
+5V
IC1
C17
100N SM
+5V
+ C14
10U EL SM
C3
100N SM
0V_D
5
HEADER 7X2HORIZ
5
WAF
Circuit Diagram
Notes:
26/9/01
B.3
JBR
10/9/01
PRE PRODUCTION RELEASE
B.2
WAF
9/08/01
UPDATED PROTOTYPE
B.0
INITIAL PROTOTYPE
A.0
A & R Cambridge Ltd.
Pembroke Avenue
CL
25/04/01
Denny Industrial Centre
ECO No. INITIALS
DATE
Waterbeach
Date Printed
Filename
Cambridge CB5 9PB
10-Oct-2001
J:\Released_Documents\Native_format_files\Protel_DDB\L928_B.3.Ddb - Documents\L928CT_2_B.3.SCH
6
STICKY PADS RENUMBERED
7
DESCRIPTION OF CHANGE
Drawn by:
CL
Sheet 2 of 2
ISSUE
DRAWING NO. L928CT2
8
1
2
3
4
D
D
C
C
Main signal path
L937C2_1.1.SCH
Power supply
L937C3_1.1.SCH
B
B
USE EXCLUDE NF WHEN USING RUNOUT SHEET PROGRAM
DRAWING TITLE
Integrated amplifier preamp
PCB1
A
PCB
L937PB_1
1
23425
Circuit Diagram
Notes:
A
01_E014
JBR
28/11/01
Fuses uprated to 2A
1.1
A & R Cambridge Ltd.
Pembroke Avenue
01_1142
JBR
14/8/01
First production release
1.0
Denny Industrial Centre
ECO No. INITIALS
DATE
DESCRIPTION OF CHANGE
ISSUE
Waterbeach
Drawn by:
Date Printed
Filename
Cambridge CB5 9PB
Sheet 1 of 3
DRAWING NO. L937C1
JBR
28-Nov-2001
J:\Change_Control\ECO_AGENDA\01_E014 Fuse changes on A32 preamp\L937_1.1.ddb - Documents\Schematic\L937C1_1.0.PRJ
2
3
4
-15V
TUNER R
0V_SIG
C122
470P FKP2
AVL1
EMC
1
AVL
R126
MODULE L
C126
100N SM
0V_SIG
+5V
0V_SIG
VCR01
VCR11
VCR21
AV L
1K0 SM
F
AVR1
C121
1N0 SM
VCR 0
VCR 1
VCR 2
0V_SIG
AVR
-15V
AV R
C124
470P FKP2
R130
100K SM
+15V
D108
BAV99W DUAL SM
D112
BAV99W DUAL SM
4
5
6
7
12
11
10
9
MODULE R
C127
100N SM 0V_SIG
-15V
C128
100N SM
0V_SIG
DVDL
R156
DVD INPUT
0V_SIG
DVD L
DVDR1
C140
470P FKP2
AUX L
CD L
TUNER L
AV L
DVD L
TAPE IN L
VCR IN L
MODULE L
0V_SIG
0V_SIG
PHONO4G
DVDR
R157
DVD R
1K0 SM
+15V
+15V
-15V
B
R160
100K SM
C141
470P FKP2
D113
BAV99W DUAL SM
+15V
D114
BAV99W DUAL SM
TAPE INPUT
1
EMC
TAPEIL
R158
X0
X1
X2
X3
X4
X5
X6
X7
V+
D
+15V
Z110B
TL072 SM
13
5
8
R161
100K SM
N
TAPEIR1
C142
470P FKP2
-15V
1K0 SM
+15V
C146
100N SM
0V_SIG
TAPEIR
TAPE IN R
R189
-15V
R192
100K SM
6
A
1K0 SM
F
R193
100K SM
N
C160
1N0 SM
VCRIR1
X0
X1
X2
X3
X4
X5
X6
X7
V+
D
13
C162
470P FKP2
3
R175
22K SM
R167
22K SM
R176
22K SM
R168
22K SM
R177
22K SM
R169
22K SM
AUXIR1
1
Z115A
C147
100N PE
C149
0V_SIG
VCR IN R
0V_SIG
1K0 SM
+15V
V+
D
R194
100K SM
C163
470P FKP2
+15V
AUXL
D117
BAV99W DUAL SM
1
-15V
1
2
3
4
C152
100N SM
5
6
Z116_1A
7
0V_SIG
TONE*
8
OPA2134PA SM
AUX L
0V_SIG
AUXR
R199
SEL2
D1
D2
S1
S2
V-
V+
GND
VL
S4
S3
D4
D3
SEL4
SEL3
16
TONE*
+
15
20
VCC
GND
DS1844
19
18
15
14
+15V
Z116B
C167
100N PE
+5V
5
C153
100N SM
12
11
0V_SIG
Z107_13
AUX R
+15V2
C168
100N SM
Z109C
AUXL1 TL072 SM
AUX L
-15V1
-15V2
-15V
C172
100N SM
9
TONE*
0V_SIG
+15V
C176
100N SM
Z110C
TL072 SM
0V_SIG
C169
100N SM
TAPE IN R
VCR IN L
VCR IN R
0V_SIG
LFO
3
C158
22P SM
2
2
LMO
14
RFO
LIN
LGND
Z117A
R186
1
SK102
1
2
3
4
SK102_1
47R SM
OPA2134PA SM
0V_SIG
R182
100R SM
RIN
RMO
15
5
R188
0V_SIG
10K SM
FFC30V SM
0V_MODULE
AMPCT4
TO POWER AMP I/P
Z117B
R187
7
RLY100A
RLY100B
47R SM
RLY DPDT 5V SM
OPA2134PA SM
0V_SIG
Z107
VSDVC
RLY DPDT 5V SM
0V_SIG
+5V
C180
100N SM
Z111C
TL072 SM
0V_SIG
C173
100N SM
0V_SLOAD
0V_SCLK
2R2 SM
R201
R181
10K SM
C177
100N SM
D120
BAS16W SM
+ RLY100C
RLY DPDT 5V SM
-
2R2 SM
R202
+5V
2R2 SM
C186
Q100
BC849B
100N SM
0V_SIG
Z112C
TL072 SM
0V_SIG
+ C187
10U EL
R203
MUTE*
4K7 SM
0V_SIG
C181
100N SM
0V_D
A
+15V
C165
0V_SIG
470P FKP2
AUX R
-15V
C170
100N SM
Z113C
TL072 SM
C166
470P FKP2
C174
100N SM
Z114C
TL072 SM
0V_SIG
C171
100N SM
0V_SIG
C175
100N SM
C178
100N SM
Z115C
0V_SIG
C179
100N SM
C182
100N SM
Z116C
0V_SIG
C184
100N SM
4
DRAWING TITLE
Integrated amplifier preamp - main signal path
Z117C
0V_SIG
C183
100N SM
C185
100N SM
-15V
3
B
SK102_3
6
RGND
MODULE L
MODULE R
SK101
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
R200
+15V
AUXR1
13
1M0 SM
5
TAPE IN L
-15V
0V_SIG
12
0V_SIG
+15V1
Z107_1
DVD R
-15V
D121
BAV99W DUAL SM
C159
22P SM
10
0V_SDATA
SK103
1
2
3
4
5
6
7
8
4
13
OPA2134PA SM
0V_SIG
C156
100N SM
3
Z107_4
R184
6
7
100K SM
0V_HF
R198
100K SM
SEL1
/TONE
DG413DY
470N PE
0V_SIG
2
1
-15V
+ C189
10U EL 0V_SIG
D119
BAV99W DUAL SM
0V_SIG
TONE*
C151
AMPCT8
-15V
5
0V_SIG
Z116A
22R SM
C155
100N SM
+15V
+ C191
10U EL 0V_SIG
+ C157
100U EL
D122
BAV99W DUAL SM
0V_SIG
Z106
1M0 SM
+ C188
10U EL
2
C154
10U EL
R185
R183
OPA2134PA SM
+15V
22K SM
8
Z115B
100K SM
R179
13
3
1K0 SM
-15V
AUX L
+ C190
10U EL
+5V
+
6
7
22P SM
X0
X1
X2
X3
X4
X5
X6
X7
C
FFC22V1MM
DVD L
Z115_1A
DG408DY
-15V
R196
SCLK
0V_SCLK
AV R
R180
0V_SIG
PHONO2G
R141
2K7 SM
AUX R
8
VCRIR
R191
SLOAD
0V_SLOAD
+15V
4
0V_SIG
PHONO4G
SDATA
0V_SDATA
0V_SIG
470N PE
+15V
R197
100K SM
C164
1N0 SM
TONEID
470N PE
OPA2134PA SM
2
EN
1
A0
16
A1
15
A2
LISTEN 0
LISTEN 1
LISTEN 2
R195
470N PE
C193
C150
Z105
4
5
6
7
12
11
10
9
1K0 SM
F
N
0V_SIG
AUXIL1
0V_D
TUNER R
2
8
DG408DY
R174
22K SM
R166
22K SM
-15V
D110
BAV99W DUAL SM
22K SM
2
EN
1
A0
16
A1
15
A2
TO PHONO PCB
1
AUX INPUT
0V_SIG
Z113B
TL072 SM
R178
Z104
4
5
6
7
12
11
10
9
LISTEN 0
LISTEN 1
LISTEN 2
D118
BAV99W DUAL SM
SK6
VCR IN L
MUTE*
+ C137
10U CERAFINE
R142
5K6 SM
AV L
-15V
VCRIL
R140
2K7 SM
22P SM
0V_SIG
R190
R146
22K SM
TONE*
6
47R SM
+15V
14
GND
3
V-
EMC
SK5A VCRIL1
1
EMC
VCR INPUT
R155
22K SM
TUNER L
14
GND
3
V-
+15V
R154
22K SM
R150
22K SM
C148
C161
470P FKP2
-15V
R153
22K SM
R149
22K SM
CD R
0V_SIG
+15V
R148
22K SM
CD L
R173
22K SM
R165
22K SM
D115
BAV99W DUAL SM
D116
BAV99W DUAL SM
R152
22K SM
0V_SIG
R172
22K SM
R164
22K SM
LISTEN0
LISTEN1
LISTEN2
R145
22K SM
C135
CFKP2 63V 2N2
SK100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
R151
22K SM
R147
22K SM
C130
100P SM
+5V
0V_SIG
PHONO4G
C145
100N SM
0V_SIG
10U CERAFINE
R144
22K SM
7
R134
7
R132
1M0 SM
0V_SIG
+15V
6
C136
22P SM
R143
C134
470N PE
5
LISTEN 0
LISTEN 1
LISTEN 2
VCR 0
VCR 1
VCR 2
TAPE 0
TAPE 1
TAPE 2
Z106_11
0V_TONEID
C144
100N SM
TAPE IN L
Z108C
4
C138
Z114_7
0V_SIG
R171
22K SM
R163
22K SM
AUX R
CD R
TUNER R
AV R
DVD R
TAPE IN R
VCR IN R
MODULE R
Z108_3
7
C133
R170
22K SM
-15V
-15V
1K0 SM
C139
1N0 SM
0V_SIG
TAPEIL1
F
Z113_7
VCR02
-15V
SK4A
Z116_1B
PHONO4G
DG408DY
R162
22K SM
LIST0
LIST1
LIST2
Z108B
7
5
22K SM
N
+5V
C143
100N SM
0V_SIG
0V_SIG
0V_SIG
0V_SIG
-15V
R159
100K SM
F
0V_SIG
14
GND
3
V-
1K0 SM
F
47R SM
+ C132
10U CERAFINE
Z114_1
2
C129
100P SM
2
EN
1
A0
16
A1
15
A2
VCR 0
VCR 1
VCR 2
VCR0
VCR1
VCR2
-15V
DVDL1
2
+15V
+5V
0V_SIG
VCR OUTPUT
VCRO1 SK5B
R133
1
R131
1M0 SM
Z103
AUX R
CD R
TUNER R
AV R
DVD R
TAPE IN R
1K0 SM
+15V
3
8
3
1
22K SM
R138
22K SM
Z114B
TL072 SM
DG408DY
0V_SIG
N
D
Z110A
TL072 SM
13
-15V
R127
SK3B
V+
2
R136
C131
100U EL 2K2 SM
14
GND
3
V-
0V_SIG
PHONO4G
+15V
X0
X1
X2
X3
X4
X5
X6
X7
2
EN
1
A0
16
A1
15
A2
C123
470P FKP2
R129
100K SM
N
0V_SIG
-15V
-15V
SK3A
AV INPUT
C125
100N SM
4
5
6
7
12
11
10
9
+
7
C
AUX L
CD L
TUNER L
AV L
DVD L
TAPE IN L
1
22K SM
-15V
D109
BAV99W DUAL SM
DVCC
+15V
+15V
Z114A
TL072 SM
0V_SIG
Z114_3
Z113_1 R139
11
0V_SIG
+15V
Z102
+15V
D106
BAV99W DUAL SM
D107
BAV99W DUAL SM
DG408DY
2R2 SM
0V_SCLK
3
8
R128
100K SM
0V_SIG
R123
0V_SIG
D111
BAV99W DUAL SM
Z113A
TL072 SM
Z113_3
R137
-15V
-15V
+5V
AGND
1K0 SM
+15V
R135
2K2 SM
4
TUNR
R125
2R2 SM
0V_SDATA
470N PE
14
GND
3
V-
0V_SIG
PHONO4G
R116
2K7 SM
+5V
16
0V_SIG
C119
10N SM
0V_TONEID
R124
470N PE
C192
8
TUNR1
TAPE 0
TAPE 1
TAPE 2
R204
10K SM
2R2 SM
0V_SIG
0V_SIG
D
1
PS
8
R/W
11
DOUT
R122
C112
C109
100P SM
2
EN
1
A0
16
A1
15
A2
IC DS1844
+ C116
10U CERAFINE
R117
5K6 SM
47R SM
4
N
TAPE0
TAPE1
TAPE2
6
Z115_1B
XMUTE
C103
470P FKP2
R105
100K SM
R107
1M0 SM
R121
22K SM
SCLK 13
CLK
SDATA 12
DIN
TONEID 9
RST
+ C120
10U EL
TO MICRO / DISPLAY PCB
0V_SIG
7
R115
2K7 SM
Z111B
TL072 SM
R109
R120
22K SM
C114
CFKP2 63V 2N2
SCLK
SDATA
TONEID
C118
100N SM
Z108E
TO PLUG IN MODULE PCB
+5V
5
8
10U CERAFINE
R119
22K SM
+
VCR IN R
MODULE R
0V_SIG
-15V
TUNER L
1K0 SM
13
8
TUNL
R102
D
4
TUNL1
F
V+
6
OPA2134PA SM
SK2B
TUNER INPUT
X0
X1
X2
X3
X4
X5
X6
X7
+5V
Z106_14
7
8
C107
100N SM
4
5
6
7
12
11
10
9
C117
Z112_7
C115
5
AUX R
CD R
TUNER R
AV R
DVD R
C106
100N SM
-15V
D104
BAV99W DUAL SM
8
D102
BAV99W DUAL SM
Z109B
TL072 SM
7
6
22P SM
R118
C113
470N PE
5
Z111_7
-15V
4
+15V
Z101
2
Z108A
14
DS1844
0V_SIG
+15V
5
10
+15V
Z108_19
Z112B
TL072 SM
Z112_1
1
22K SM
DG408DY
-15V
Z108D
17
1
+15V
C111
10U CERAFINE
0V_SIG
TAPE02
14
GND
3
V0V_SIG
+
PHONO4G
OPA2134PA SM
D101
BAV99W DUAL SM
R113
22K SM
3
3
C102
470P FKP2
R104
100K SM
22K SM
0V_SIG
8
-15V
2
Z112A
TL072 SM
Z112_3
R114
AVCC
1K0 SM
+15V
0V_SIG
Z111_1
1
+ C110
R111
100U EL 2K2 SM
N
0V_SIG
3
22K SM
C108
100P SM
2
EN
1
A0
16
A1
15
A2
TAPE 0
TAPE 1
TAPE 2
TAP0
TAP1
TAP2
Z111A
TL072 SM
Z111_3
R112
F
4
D
-15V
CD R
TAPE OUTPUT
OPA2134PA SM
CDR
R101
TAPEO1
47R SM
DS1844
0V_SIG
PHONO4G
0V_SIG
2
2
+5V
R108
1
R106
1M0 SM
R110
2K2 SM
SK4B
3
8
DGND
C105
100N SM 0V_SIG
0V_SIG
CDR1
D
Z109A
TL072 SM
13
8
N
VCR IN L
MODULE L
V+
6
XCS
9
DATA
10
CCLK
C101
470P FKP2
R103
100K SM
C100
1N0 SM
C104
100N SM
X0
X1
X2
X3
X4
X5
X6
X7
8
D105
BAV99W DUAL SM
SLOAD
SDATA
SCLK
1K0 SM
F
EMC
CD L
4
R100
4
5
6
7
12
11
10
9
8
1
AUX L
CD L
TUNER L
AV L
DVD L
+15V
4
CD INPUT
CDL
7
-15V
D103
BAV99W DUAL SM
DS1844
+15V
Z100
CDL1
6
+5V
+15V
SK2A
5
8
D100
BAV99W DUAL SM
4
4
+15V
3
16
2
6
1
5
23425
Circuit Diagram
Notes:
01_E014
JBR
28/11/01
Fuses uprated to 2A
1.1
A & R Cambridge Ltd.
Pembroke Avenue
01_1142
JBR
14/8/01
First production release
1.0
Denny Industrial Centre
ECO No. INITIALS
DATE
DESCRIPTION OF CHANGE
ISSUE
Waterbeach
Drawn by:
Filename
Date Printed
Cambridge CB5 9PB
Sheet 2 of 3
DRAWING NO. L937C2
28-Nov-2001
JBR
J:\Change_Control\ECO_AGENDA\01_E014 Fuse changes on A32 preamp\L937_1.1.ddb - Documents\Schematic\L937C2_1.0.SCH
6
7
8
1
2
3
4
D302
D304
BAS16W SM
Q305
2SA1964
I
SK300
MOLEXPWR4
3
4
Q306
BC846B
UR+
D300
S1D
F300
D301
S1D
+ C300
1000u 35V
AC1
Q300
J112
R300
330R SM
+
D310+
1
2
C308
100N SM
C303
3300u 25V
D310
15V 350MW SM
C314
1N0 PP
C
F301
AC2
C309
100N SM
Vout
C315
1N0 PP
D
D305
BAS16W SM
+ C312
220U EL
R302
1K2 SM
D307
S1D
+ C310
1000u 35V
D311
15V 350MW SM
C305
10U EL
+15V SK301
1
2
3
-15V
4
0V_PSU
IDC4S
0V_PSU
0V_MODULE
SP300
STAR POINT 4
0V_PSU
Q307
BC856B
0V_SIG
-15V3
0V_HF
0V_MODULE
-15V
Q301
2SC5248
D308
B
C
D311-
R304
330R SM
UR-
+ C306
470U EL 25V
+
+ C313
3300u 25V
Q303
J112
R303
470R SM
R307
220R SM
+ C302
220U EL
T2A SM
D306
S1D
+5V
+3.75V
C304
100N SM
T2A SM
C307
470N PE
Vin
ADJ
+15V3
+5V
O
A
D
Z301 BAS16W SM
LM317T
+15V
0V_SIG
B
BAS16W SM
DRAWING TITLE
Integrated amplifier preamp - power supply
23425
A
Circuit Diagram
Notes:
A
01_E014
JBR
28/11/01
Fuses uprated to 2A
1.1
A & R Cambridge Ltd.
Pembroke Avenue
01_1142
JBR
14/8/01
First production release
1.0
Denny Industrial Centre
ECO No. INITIALS
DATE
DESCRIPTION OF CHANGE
ISSUE
Waterbeach
Drawn by:
Date Printed
Filename
Cambridge CB5 9PB
Sheet 3 of 3
DRAWING NO. L937C3
JBR
28-Nov-2001
J:\Change_Control\ECO_AGENDA\01_E014 Fuse changes on A32 preamp\L937_1.1.ddb - Documents\Schematic\L937C3_1.0.SCH
1
2
3
4
1
2
3
4
5
6
7
8
+5V_D
SK100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
D
14
+5V_D
C100
100N SM
C101
100N SM
+ C102
100U EL
TP103
SPKR1 ON
SPKR2 ON
THERMPROT
VIPROT1
DCPROT1
0V_D
TP104
TP105
TP106
TP107
TP108
D
+5V_D
0V_D
FFC 14W 2.54MM VER
IC100E
PIN 1 TO THE LEFT AS YOU LOOK FROM THE FRONT
11
10
7
2R2 SM
0V_D
SP100
TP116
THERMPROT
0V_LS
R100
1K0 SM
R107
0V_SIG
TH100
PTH90DEG
IC100G
74HC14D
TP102
STAR POINT 8 0V_HF
74HC14D
IC100F
13
0V_PSU
12
74HC14D
0V_D
C
C
IC100A
R101
+49V
1
1K0 SM
RLY101B
RLY SPST SPKR
D100
1N4003F
RLY100B
RLY SPST SPKR
R102
1
R105
N
INPUT
0V_SIG
0V_LS
0V_HF
VPOS
VNEG
+49V
C105
1N0 SM
SPKR2 ON
100R SM
PHONO2G
VIPROT1
8
DCPROT1
74HC14D
IC100D
5
69
C104
10N SM 74HC14D
74HC14D
VIPROT
DCPROT
OUTPUT
TP111
0V_D
RLY101A
TP112
SK102A
RLY100A
TP113
Top+
RLY SPST SPKR
SK102B
Bot+
RLY SPST SPKR
-49V
0V_SIG TP110
R104
220R SM
4
L911C2_1
L911C2_1.1.SCH
F
SPKR1 ON
EMC
R103
220R SM
TP109
100R SM
R106
74HC14D
IC100C
D101
1N4003F
SK101
TR100
BD179
23
C103
10N SM
1K0 SM
TR101
BD179
IC100B
Top-
0V_HF
Bot-
0V_LS
B
B
0V_LS
0V_D
+49V
1
TP100
BR100
BRGBU8D
+ C106
10,000u 63V
2
3
~
~
+ C107
10,000u 63V
L911PB_1
TP101
DRAWING TITLE
TP115
A
PCB
0V_PSU
C109
100N PC
4
4
3
SK103
MOLEXPWR4
PB
C108
100N PC
2
-
1
+
TP114
POWER AMP SUPPLY
A
AP85 third channel - top level
23425
-49V
Circuit Diagram
Notes:
01_1101
JR
4/6/01
A & R Cambridge Ltd.
Pembroke Avenue
01_1018
JR
30/1/01
Denny Industrial Centre
ECO No. INITIALS
DATE
Waterbeach
Date Printed
Cambridge CB5 9PB Filename
4-Jun-2001
J:\ECO_wip\01_1101 A85 RANGE PCB FUSES AND DC OFFSET\L911_1.1.DDB - Documents\L911C1_1.1.PRJ
1
2
3
4
5
6
DC OFFSET CHANGES
1.1
PRODUCTION ISSUE
1.0
DESCRIPTION OF CHANGE
Drawn by:
J Reckless
7
Sheet 1 of 2
DRAWING NO.
ISSUE
L911C1
8
1
2
3
4
5
6
8
7
VPOS
D
D
R319
100R SM
R315
100R SM
R300
10K SM
R316
100R SM
PRE DRIVER
PNP CURRENT MIRROR
TR300
FMMT597
TR310
FMMT497
TR301
FMMT597
R301
10K SM
+
C300
100U EL
DZ300
15V 350MW SM
TR309
FMMT497
R321
22R SM
TR302
FMMT597
TR321
FMMT597
OUTPUT STAGE
R338
150R SM
0V_HF
TR318
SAP15N
3K3 SM
TR311
FMMT497 C317
R328
4K7 SM
C
INPUT
V TO I AMP
R324
3
1K0 SM
DZ302
4V7 350MW SM
2
8
INPUT FILTER
0V_SIG
IC300A
1
TL072CD
DZ303
4V7 350MW SM
R322
22R SM
4
R327
22K SM
R337
22R SM
+
DZ301
15V 350MW SM
R352
470R 2W
TR313
FMMT497
R349
100R SM
R345
0R0 SM
R340
100K SM
+ C303
100U EL
1
2
R351
L300
2U2H LAC SMALL
DC OFFSET SIGNAL
TO MICRO
R355
6K8 SM
DCPROT
+ C318
10U EL
+ C304
100U EL
C312
10N SM
C311
100N PC
R326
1K0 SM
+ C306
100U EL 100V
R354
1K0 SM
TP306
BOOTSTRAP
R344
100R SM
ZOBEL NETWORK
TR305
FMMT597
R346
0R0 SM
R304
10K SM
R348
R342
3K3 SM
C308
TR319
SAP15P
100P SM
0V_SIG
TR320
FMMT497
TR304
FMMT597
D304
1N4003F
100R SM
TR306
FMMT597
C319
100N PE
C313
0V_LS
R308
22K SM
R307
10K SM
TP308
R336
22K SM
D302
BAS16W SM
100N SM
0V_HF
0V_LS
TR316
FMMT497
DZ306
4V7 350MW SM
V-I PROTECTION
R310
4K7 SM
R313
C320
100U NP
10K SM
R314
10K SM
C315
100N SM
0V_HF
C301
100U EL
DC OFFSET
DETECTION
R302
10K SM
R339
150R SM
OUTPUT STAGE
R350
5R6 2W CF
R303
10K SM
330R SM
R335
C
5R6 2W CF
MEASURE
BIAS
D300
BAS16W SM
470R 2W
R353
TR303
FMMT597
C314
100N SM
R343
100R SM
D303
1N4003F
TR312
FMMT497
100R SM
DZ305
4V7 350MW SM
+ C305
10U EL
OUTPUT
0V_SIG
0V_HF
VIPROT
R306
10K SM
0V_HF
1K8 SM
TP303
C309
100N SM
TP307
R332
0V_SIG
0V_SIG
R325
1K0 SM
PL300
TR322
FMMT497
C316
470P PPW
VI PROTECT
SIGNAL TO MICRO
R305
10K SM
ADJ BIAS
RV300
100R PSET
R331
1K5 SM
TP304
R347
330R SM
+ C302
100U EL 100V
TL072CD 0V_SIG
TP302
R341
BOOTSTRAP
6R330
1M0 SM
5
IC300B
0V_SIG
R334
22K SM
TP305
DC SERVO
7
R329
4K7 SM
D301
BAS16W SM
100P SM
470N PE
C310
100N SM
V-I PROTECTION
C307
R333
R323
22R SM
0V_HF
0V_HF
R309
10K SM
TR314
FMMT497
TR315
FMMT497
TR307
FMMT597
TR308
FMMT597
NPN CURRENT MIRROR
R317
100R SM
B
PRE DRIVER
R318
100R SM
R311
10K SM
B
TR317
FMMT497
R320
100R SM
R312
10K SM
VNEG
A
A
DRAWING TITLE
AP85 third channel - output stage
23425
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
1
2
3
4
5
Circuit Diagram
Notes:
01_1101
JR
4/6/01
DC OFFSET CHANGES
01_1018
JR
30/1/01
PRODUCTION ISSUE
ECO No. INITIALS
Filename
L911C2_1.1.SCH
6
DATE
4-Jun-2001
7
1.0
DESCRIPTION OF CHANGE
Drawn by:
Date Printed
1.1
J Reckless
Sheet 2 of 2
ISSUE
DRAWING NO.
8
L911C2