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Service
Manual
KEH-3930R/X1M/EW
ORDER NO.
CRT2420
HIGH POWER CASSETTE PLAYER WITH RDS TUNER
KEH-3930R
KEH-3900R
X1M/EW
X1M/EW
- This service manual should be used together with the following manual(s):
Model No.
CX-1011
Order No.
CRT2406
Mech. Module Remarks
3L
Cassette Mech. Module:Circuit Description, Mech.Description, Disassembly
CONTENTS
1.
2.
3.
4.
5.
6.
SAFETY INFORMATION ............................................2
EXPLODED VIEWS AND PARTS LIST .......................2
BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .....9
PCB CONNECTION DIAGRAM ................................22
ELECTRICAL PARTS LIST ........................................32
ADJUSTMENT..........................................................36
7. GENERAL INFORMATION .......................................37
7.1 DISASSEMBLY ...................................................37
7.2 PARTS .................................................................38
7.2.1 IC................................................................38
7.2.2 DISPLAY ....................................................42
8. OPERATIONS AND SPECIFICATIONS.....................43
PIONEER CORPORATION
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 1999
K-ZZD. NOV. 1999 Printed in Japan
KEH-3930R,3900R
1. SAFETY INFORMATION
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.
Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair
complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so
and refer the repair to a qualified service technician.
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
12
4
3
2
5
6
10
13
1
11
7
9
8
2
KEH-3930R,3900R
NOTE:
- Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.
- Screws adjacent to ∇ mark on the product are used for disassembly.
(1) PACKING SECTION PARTS LIST
Mark No. Description
1
2
3
4
5
*
6
7
8
9
10
Part No.
Cord Assy
Accessory Assy
Screw
Handle
Bush
CDE6100
CEA1917
CBA1304
CNC5395
CNV3930
Polyethylene Bag
Polyethylene Bag
Carton
Contain Box
Protector
E36-615
CEG-162
See Contrast table(2)
See Contrast table(2)
Mark No. Description
*
*
11
12-1
12-2
12-3
12-4
Protector
Owner’s Manual
Owner’s Manual
Installation Manual
Passport
12-5 Warranty Card
12-6 Polyethylene Bag
13 Case Assy
Part No.
CHP2244
CRD3122
CRD3123
CRD3124
CRY1013
CRY1157
CEG1116
CXB3520
CHP2243
(2) CONTRAST TABLE
KEH-3930R/X1M/EW and KEH-3900R/X1M/EW are constructed the same except for the following:
Part No.
Mark No. Symbol and Description KEH-3930R/X1M/EW KEH-3900R/X1M/EW
8 Carton
CHG3844
CHG3843
9 Contain Box
CHL3844
CHL3843
- Owner's Manual, Installation Manual
Model
KEH-3930R/X1M/EW
KEH-3900R/X1M/EW
Part No.
CRD3122
CRD3123
CRD3124
Language
English, Spanish, German
French, Italian, Dutch
English, Spanish, German,
French, Italian, Dutch
3
KEH-3930R,3900R
2.2 EXTERIOR
4
KEH-3930R,3900R
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description
1
2
3
4
5
Part No.
Mark No. Description
Part No.
Screw
Screw
Screw
Cord Assy
Plug
BSZ26P050FMC
BSZ30P050FMC
BSZ30P200FMC
CDE6100
CKM1314
31
32
33
34
35
Screw
Button(DETACH)
Button(1-6)
Button(EJECT)
Button(+ -)
BPZ20P100FZK
6
7
8
9
10
Case
Earth Plate
Spacer
Insulator
Tuner Amp Unit
CNB2350
CNC8368
CNM4913
CNM5963
CWM6806
36
37
38
39
40
Button(SELECT)
Button(SOURCE/LOUD)
Spring
Cover
Keyboard Unit
See Contrast table(2)
11
12
13
14
15
Screw
Screw
Cord
FM/AM Tuner Unit
Holder
BSZ26P080FMC
BSZ26P160FMC
CDE6158
CWE1500
CNC7532
41
42
43
44
45
LCD(LCD1801)
Connector(CN1801)
Holder
Rubber
Lighting Conductor
CAW1559
CKS3580
CNC8517
CNV5954
CNV6274
16
17
18
19
20
Plug(CN604)
Connector(CN602)
Connector(CN601)
Antenna Jack(CN402)
Panel
CKM1288
CKS3568
CKS3581
CKX1056
CNB2344
46
47
48
49
50
Rubber
Grille Unit
Button
Spring
Spring
CNV5968
21
22
23
24
25
Holder
Holder
Holder
Holder
Insulator
CNC5399
CNC6845
CNC7533
CNC7996
CNM5967
51
52
53
54
55
Spring
Bracket
Bracket
Arm
Arm
CBH2182
CNC6135
CNC6791
CNV4692
CNV4693
26
27
28
29
30
Heat Sink
Holder Unit
•••••
Chassis Unit
Detach Grille Assy
CNR1505
CXB2687
56
57
58
59
60
Arm
Panel Unit
Door
Spring
Screw
61
62
63
64
65
Screw
Fuse(10A)
IC(IC302)
Transistor(Q904)
See Contrast table(2)
See Contrast table(2)
See Contrast table(2)
CAC6275
CAC6277
See Contrast table(2)
CAC6494
CBH2210
See Contrast table(2)
See Contrast table(2)
See Contrast table(2)
CAC4836
CBH1834
CBH1835
CNV4728
See Contrast table(2)
See Contrast table(2)
CBH1838
IMS20P030FZK
Cassette Mechanism Module EXK4100
ISS26P055FUC
CEK1136
TDA7384
2SD2396
(2) CONTRAST TABLE
KEH-3930R/X1M/EW and KEH-3900R/X1M/EW are constructed the same except for the following:
Mark No.
29
30
32
35
36
39
40
47
57
58
Symbol and Description
Chassis Unit
Detach Grille Assy
Button(DETACH)
Button(+ -)
Button(SELECT)
Part No.
KEH-3930R/X1M/EW KEH-3900R/X1M/EW
CXB4530
CXB4529
CXB4850
CXB4849
CAC5929
CAC5789
CAC6458
CAC6273
CAC6459
CAC6276
Cover
Keyboard Unit
Grille Unit
Panel Unit
Door
CNS5662
CWM6813
CXB5840
CXB4929
CAT2108
CNS5661
CWM6812
CXB4519
CXB4928
CAT2109
5
KEH-3930R,3900R
2.3 CASSETTE MECHANISM MODULE
6
KEH-3930R,3900R
- CASSETTE MECHANISM MODULE SECTION PARTS LIST
Mark No. Description
Part No.
Mark No. Description
Part No.
1
2
3
4
5
Screw
Washer
Washer
Screw
Screw
BSZ20P040FMC
CBF1037
CBG1003
EBA1028
CBA1037
46
47
48
49
50
Pinch Roller
Pinch Holder Unit
Pinch Roller
Reel Unit
Head Base Unit
ENV1518
EXA1583
ENV1518
EXA1585
EXA1586
6
7
8
9
10
Spring
Spring
Spring
Spring
Spring
EBH1531
EBH1624
EBH1625
EBH1626
EBH1627
51
52
53
54
55
Lever Unit
Gear Unit
Motor Unit(Service)
Washer
Screw
EXA1587
EXA1588
EXX1055
HBF-179
CBA1250
11
12
13
14
15
Spring
Cord
Photo-reflector(EGN1)
Arm
Lever
EBH1628
EDD1024
EGN1004
ENC1526
ENC1530
56 Bracket
16
17
18
19
20
Lever
Arm
Frame
Holder
Gear
ENC1531
ENC1532
ENC1533
ENC1534
ENC1535
21
22
23
24
25
Arm
Roller
Belt
Collar
Arm
ENC1536
ENR1040
ENT1027
ENV1508
ENV1539
26
27
28
29
30
Arm
Gear
Gear
Gear
Worm Wheel
ENV1540
ENV1544
ENV1547
ENV1548
ENV1550
31
32
33
34
35
Lever
Flywheel
Gathering PCB
Switch(S1,S2)
Deck Unit
ENV1551
ENV1554
ENX1054
ESG1007
EWM1023
36
37
38
39
40
Plug(CN251)
Gathering PCB
Motor Unit(M1)
Motor
Head Assy(HD1)
CKS3540
ENX1053
EXA1491
EXM1028
EXA1592
41
42
43
44
45
Motor Unit(M2)
Screw
Bracket
Chassis Unit
Pinch Holder Unit
EXA1580
BMZ20P022FMC
ENC1528
EXA1582
EXA1584
ENC1542
7
KEH-3930R,3900R
8
1
3
2
4
KEH-3930R,3900R
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
A TUNER AMP UNIT
FM/AM 1ST IF 10.7MHz
T51 Q51 CF51
CF52 CF53
FM FRONT END
Q3
39
42
44
46
63
Q903
46
VDD
B.U
LDET
TMUTE
54
COMP
78
LDET
21
Q476
18
65
71
35
33 32 45
55 57
28
CF202
61 74
75
SYSPW
EEPROM
5
AM RF
AM 2ND IF 450kHz
Q202
IC 3
BR9010FV
6
4
RDS
DECODER
3
VDD
LOCL
NL2
NL1
FMSD
2
21
FM/AM
3
IC 701
PM4009A
20
4
SWVDD
24
NL1
SDBL
CE1
SL
13
SD
8
SDBW
TUNPCE
PCE2
PDIO
12 15 16
SL
CK
CE2
DI/DO
22 10 14
Q411
TUNPCK
25
61
51
VDD
VCC
55
Q477
11
X702
PDIO
TAPE-L
3
IC301
SN761029DL
B
CN604
POWER AMP
11
15
Q350
IC302
TDA7384
FL
RL
MUTE
MUTE
9
FL-
7
RL- 19
RL+ 17
STBY
22
FL+
2
1
B5
B6
FL+
FL-
8
B8
7
B7
RLRL+
4
Q351
Q352
Q904
VCC
IC601(1/2)
PE5088A
20
RL
FL 19
VCK/VDT/VST
2
SYSTEM
CONTROLLER
TUN-L
ELECTRONIC VOLUME
TUN-L
TMUTE
68
74
FM/AM
78
NL1
53
SD
76
SL
10
SDBW
14
TUNPCE
13
TUNPCK
20
PCE2
12
TUNPDO
11
TUNPDI
28
LOCL
12
VDD
VCC
LDET
VDD
RF TV
ANT2 TV
6
70
MIXER.IF AMP DET
IC 1
PML002A
Q201 Q204
Q474
TUNER Lch
19
IC 2 PM4008A
34 33 41 44 11 12 13
69
22
Q472
24
32
2
38
A
FM MPX
25
27
AVDD
CN401
1
ANT1 TV
SYSPW
B.U
13
FUSE
10A
Q901
BSENS
A4
BACK UP
A7
ACC
Q905
VDD
D DECK UNIT
2
STBY
7
8
10
20
20
19
19
11
11
LOAD
3
1
5
6
3
1
5
6
RIMUTE
30
RIMUTE
B.U
STBY
48
42
LD
STBY
LOADSW
CN602
X2
IC601(2/2)
PE5088A
63
CN256
X601
SYSTEM
CONTROLLER
TELIN
B.REMOTE
69
TEL MUTE
64
TEL MUTE
8
9
5
VDD
EGN1
REEL
SENSE
A
S1
LOAD
E REEL SENSE PCB
SWVDD
Q650
VDD SWITCH
SW5V
ILL
S2
MODE
CN901
Q951
SW5V
17
CN253
C
70
KYDT
CN255
SYSPW
A5
POWER SWITCH
1
IC901
6
TPD1018F
CN601
8
7
3
4
5
8
7
3
4
5
C KEYBOARD UNIT
CN1801
VDD
50 10
18
DPDT
20
KYDT
VLCD
19
18
IC351
PA2020A
9
DPDT
B.U
9
SWVDD
D
LCD DRIVER
IC1801
PD6293A
KEY MATRIX
LCD
XI
XO
M
66 65
60
X1
MUTE
MECHANISM
DRIVER
2
1
5
2
1
M1
MAIN
MOTOR
54
ASENS
Lch
10
DSENS
M
3
17
CN254
M2
SUB
MOTOR
3
LOUT
7
11
Q906
VCC
DPDT
4
4
KYDT
REV
L-ch
IC251
CXA2559Q
TAPE+B
4
RESET
37
36
39
5
5
ACC
ASENS
SYSPW
CN251
EQ AMP
B.U
1
IC602
S-80834ANY
DSENS
FWD
L-ch
Q902
A
BSENS
CN252
1
8.4V
REGULATOR
RESET
MUTE
ANTENNA
JACK
FM/AM TUNER UNIT
SYSPW
B
23
22
X901
9
1
2
3
4
2
1
3
4
KEH-3930R,3900R
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS
LIST”.
A
A
A-a
A-b
TUNER AMP UNIT
B
A-a
A-a
A-b
A-b
A-a
ANTENNA JACK
Large size
SCH diagram
FM/AM TUNER UNIT
SOUR
ELECT
Guide page
FM(100%) : -15.5dBs
AM(30%) : -26dBs
Detailed page
FM
AM
TA
B
RESET
RDS DECODER
SYSTEM CONTROLLER
PE5088A
C
D
10
A
1
TAPE 315Hz(0dB)
: -7.9dBs
CASSETTE MECHANISM
MODULE
D E
NOTE :
Symbol indicates a resistor.
No differentiation is made between chip resistors and
discrete resistors.
Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.
2
The > mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
3
For resistors and capacitors in the circuit diagrams, their resistance values or
capacitance values are expressed in codes:
Ex. *Resistors
Code
Practical value
123
12k ohms
103
10k ohms
*Capacitors
Code
Practical value
103
0.01uF
101/10
100uF/10V
4
5
7
6
8
KEH-3930R,3900R
A-b
A
CE SELECTOR/
TRONIC VOLUME
M: -15.5dBs
M : -26.0dBs
APE : -7.9dBs
3300/16
POWER AMP
FM : 33.5dBs
AM : 25.0dBs
TAPE : 23.1dBs
FM: 7.5dBs
AM : -1.0dBs
TAPE : -2.9dBs
SYSTEM MUTE
2
B5
1
B6
4
B3
3
B4
7
B7
8
B8
5
B1
6
B2
B
8.4V REGULATOR
600µH
13
> CEK1136
A4
A7
OFF MUTE
12
A8
5V REGULATOR
C
SWD 5V
ACC SENSE
11
POWER SWITCH
10
A5
BACK UP SENSE
TEL MUTE
C
KEYBOARD UNIT
TELEPHONE MUTE
D
5
6
7
A
8
11
12
B
C
FM/AM TUNER UNIT
A-a
1
B
SYSTEM CONTROLLER
FM(100%) : -15.5dBs
AM(30%) : -26dBs
A
RESET
FM: -15.5dB
AM : -26.0dB
TAPE : -7.9d
1
SOURCE SE
ELECTRONI
A-a A-b
2
1
RDS DECODER
ANTENNA JACK
TUNER AMP UNIT
D
A
KEH-3930R,3900R
2
2
3
3
4
4
CASSETTE MECHANISM MODULE
D E
TAPE 315Hz(0dB)
: -7.9dBs
5
6
The > mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
NOTE :
Symbol indicates a resistor.
No differentiation is made between chip resistors and
discrete resistors.
Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.
PE5088A
*Capacitors
Code
Practical value
103
0.01uF
101/10
100uF/10V
Ex. *Resistors
Code
Practical value
123
12k ohms
103
10k ohms
For resistors and capacitors in the circuit diagrams, their resistance values or
capacitance values are expressed in codes:
SYSTEM CONTROLLER
A-a A-b
3
5
6
7
KEH-3930R,3900R
7
8
A
B
C
D
A-a
8
13
2
D
14
A-b
1
SYSTEM MUTE
FM: 7.5dBs
AM : -1.0dBs
TAPE : -2.9dBs
B
2
3
600µH
FM : 33.5dBs
AM : 25.0dBs
TAPE : 23.1dBs
> CEK1136
B8
B1
5
A4
3
13
B2
B7
8
6
B4
B3
4
7
B6
1
3
B5
A
2
2
3300/16
8.4V REGULATOR
POWER AMP
1
M: -15.5dBs
M : -26.0dBs
APE : -7.9dBs
1
RCE SELECTOR/
TRONIC VOLUME
A-a A-b
KEH-3930R,3900R
4
C
4
3
5
6
KEYBOARD UNIT
C
SWD 5V
BACK UP SENSE
ACC SENSE
OFF MUTE
TELEPHONE MUTE
POWER SWITCH
5V REGULATOR
10
11
12
>
TEL MUTE
6
A-a A-b
A5
A8
A7
A4
5
7
KEH-3930R,3900R
7
8
A
B
C
D
A-b
8
15
2
1
3
4
KEH-3930R,3900R
3.3 FM/AM TUNER UNIT
A
A
B
FM/AM TUNER UNIT
Mark
None
F0
F65
F125
A0
A74
A125
Band
–
FM
FM
FM
AM
AM
AM
Input Level
–
0dBf
65dBf
125dBf
0dBµ
74dBµ
125dBµ
KV1410(23)
KV1410(23)
B
DAN217U
DAN217U
C
D
16
B
1
2
3
4
5
6
7
8
KEH-3930R,3900R
KV1410(23)
A
B
C
D
5
6
7
B
8
17
1
2
3
4
KEH-3930R,3900R
3.4 KEYBOARD UNIT
A
C
KEYBOARD UNIT
B
PD6293A
LCD DRIVER,
KEY CONTROLLER
C
CAW1559
D
18
C
1
2
3
4
5
7
6
8
KEH-3930R,3900R
A
CN601
LOUD
PTY
A
TA/AF
B
LOCAL/BSM
C
KEH-3930R/X1M/EW KEH-3900/X1M/EW
IL1801-1804 CEL1638(14V 40mA) CEL1547(14V 40mA)
D
5
6
7
C
8
19
2
1
3
4
KEH-3930R,3900R
3.5 CASSETTE MECHANISM MODULE
A
D
DECK UNIT
18K
R1
R301
16K
C302
1K
R304
R258
R01
16K
C256
MSSW
TCH2
LINEOUT2
GND
DIREF
MSOUT
PBGND
MSTC
EQ AMP
PBFB1
G2FB
R273
1K
R272
1K
R271
1K
R274
1K
R403
C402
3900P
C401
R33
0R0
C272 R1
0R0
0R0
R286
R285
C
MUTE
CN251
-6dBs(388mV)±1dB
A
CN602
D
20
D
1
2
3
4
R290
C403
R323
100P
1K
16K
R257
R01
16K
C255
G1FB
20
19
18
17
16
15
14
13
12
11
MSLPF
PBRIN1
PBTC1
TEST TAPE
NCT-150
(400Hz, 200nWb/m)
TAPEIN2
PBFIN1
C313
R255 220
HD1
HEAD ASSY
EXA1592
PBREF
LINEOUT1
R281 0R0
C251 330P
MUTESW
CXA2559Q
VCT
TCH1
Fwd-L
FL
TAPESW
PBFIN2
VCC
0R0
R1
R287
IC251
TAPEIN1
C273
22/16
FR
PBRIN2
PBGND
OUTREF1
C252 330P
B
DRSW
C301
R282 0R0
MSMODE
PBFB2
1
2
3
4
5
6
7
8
9
10
Fwd-R
31
32
33
34
35
36
37
38
39
40
PBOUT1
R256 220
C254 330P
R284 0R0
R303
Rev-R
RR
OUTREF2
PBTC2
RL
R305
Rev-L
R283 0R0
PBOUT2
30
29
28
27
26
25
24
23
22
21
C253 330P
R302
CN252
5
7
6
8
KEH-3930R,3900R
A
M1 MOTOR UNIT
(MAIN MOTOR)
EXA1491
CN255
CN253
CN256 REEL SENSE
RSB
EGN1
EGN1004
GND
RS
0R0
RRS
300
FRS
SC2
R068
SC1
R403 82K
C402
R402 18K
S1 LOAD
ESG1007
RS2
RS1
C403
load
MCS
R362
R355
0R0
TAB
REEL SENSE
PCB
RSB
CN254
TAB
NC
SM1
MM
R01
1K
1K
R353
R354
MECHANISM
DRIVER
0R0
D352
1SS355
C353
1K
1K
R351
R374
C354
NC
R352
M2
MOTOR UNIT
(SUB MOTOR)
EXA1580
C351
NC
R01
VCC2
VCC
IC351
CE
R22
MS2
MC
R401
4R7K
B
E
C
3900P
C401
R33
S2 MODE
ESG1007
MCS
RS3
PA2020A
R290
C352 3900P
mtl
270K
R373
C356
C355
R01
SWITCHES:
PCB UNIT
S1:LOAD SWITCH..........EJECT-PLAY
S2:MODE SWITCH............ON-OFF
The underlined indicates the switch position.
R1
C
D
5
6
7
D E
8
21
2
1
3
4
KEH-3930R,3900R
4. PCB CONNECTION DIAGRAM
A
4.1 TUNER AMP UNIT
CORD ASSY
A TUNER AMP UNIT
NOTE FOR PCB DIAGRAMS
1. The parts mounted on this PCB
include all necessary parts for
several destination.
For further information for
respective destinations, be sure
to check with the schematic diagram.
2. Viewpoint of PCB diagrams
Connector
Capacitor
SIDE A
B
P.C.Board
Chip Part
SIDE B
C
D
22
A
1
C
2
3
CN1801
4
5
6
7
8
KEH-3930R,3900R
A
SIDE A
CORD
ANTENNA JACK
REAR PREOUT
L-CH R-CH
B
B
C
D
D
5
6
7
CN251
A
8
23
1
2
3
4
KEH-3930R,3900R
A
TUNER AMP UNIT
A
1
6
3
4
4
3
6
1
B
C
3
4
1
6
D
24
A
1
2
3
4
5
6
7
8
KEH-3930R,3900R
SIDE B
A
B
C
D
5
6
7
A
8
25
2
1
3
4
KEH-3930R,3900R
4.2 FM/AM TUNER UNIT
SIDE A
A
A
B
FM/AM TUNER UNIT
C
B
D
26
B
1
2
3
4
1
2
3
4
KEH-3930R,3900R
SIDE B
A
B
FM/AM TUNER UNIT
C
B
D
1
2
3
B
4
27
C
28
C
1
2
LOUD
SOURCE
1
2
C
3
4
5
6
TA
PTY
LOCAL/BSM
←
←
4.3 KEYBOARD UNIT
AUDIO
BAND
2
VOL -
VOL +
EJECT
1
←
←
D
KEYBOARD UNIT
KEH-3930R,3900R
3
3
4
SIDE A
A
B
4
1
2
3
4
KEH-3930R,3900R
SIDE B
A
B
KEYBOARD UNIT
A
CN601
C
C
D
1
2
3
C
4
29
2
1
3
4
KEH-3930R,3900R
4.4 CASSETTE MECHANISM MODULE
D
SIDE A
DECK UNIT
A
A
CN602
B
D
DECK UNIT
SIDE B
HEAD ASSY
M2
M1
IC,Q ADJ
VR302
CN254
C
CN255
CN253
CN252
22
21
IC253
IC251
Q351
Q352
VR301
E
CN256
D
30
D
1
2
3
4
1
3
2
4
KEH-3930R,3900R
E
REEL SENSE PCB
A
S1
LOAD SW
S3
70µs SW
S2
MODE SW
CN256
6
5
4
3
2
1
EGN1
REEL SENSE
D
CN253
B
C
D
1
2
3
E
4
31
KEH-3930R,3900R
5. ELECTRICAL PARTS LIST
NOTES:
- Parts whose parts numbers are omitted are subject to being not supplied.
- The part numbers shown below indicate chip components.
Chip Resistor
RS1/_S___J,RS1/__S___J
Chip Capacitor (except for CQS.....)
CKS....., CCS....., CSZS.....
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
A
Part No.
-------------------------
Unit Number : CWM6806
Unit Name
: Tuner Amp Unit
MISCELLANEOUS
IC
IC
IC
IC
IC
301
302
601
602
701
IC
IC
IC
IC
IC
SN761029DL
TDA7384
PE5088A
S-80834ANY
PM4009A
IC
Q
Q
Q
Q
901
350
351
352
411
IC
Transistor
Transistor
Transistor
Transistor
TPD1018F
2SC2412K
DTC124EK
2SC2412K
2SC2412K
Q
Q
Q
Q
Q
412
472
474
475
476
Transistor
Transistor
Transistor
Transistor
Transistor
2SC2412K
RN1610
2SD1757K
2SD1757K
2SC2412K
Q
Q
Q
Q
Q
477
650
901
902
903
Transistor
Transistor
Transistor
Transistor
Transistor
DTA124EK
2SA1037K
2SC2412K
2SC2412K
2SD2037
Q
Q
Q
Q
Q
904
905
906
920
951
Transistor
Transistor
Transistor
Transistor
Transistor
2SD2396
2SB1243
DTC114EK
RN46A1
2SA1037K
D
D
D
D
D
350
351
352
601
602
Diode
Diode
Diode
Diode
Diode
HZS9L(A2)
1SS270
1SS270
1SS270
1SS270
D
D
D
D
D
650
651
652
653
654
Diode
Diode
Diode
Diode
Diode
1SS270
1SS270
1SS270
1SS270
1SS270
D
D
D
D
D
655
901
902
903
904
Diode
Diode
Diode
Diode
Diode
1SS270
HZS7L(C2)
S5688G
S5688G
HZS7L(A1)
D
D
D
D
D
905
906
907
909
910
Diode
Diode
Diode
Diode
Diode
S5688G
HZS6L(B2)
HZS9L(C1)
S5688G
S5688G
D
D
L
L
L
951
952
401
402
403
Diode
Diode
Ferri-Inductor
Ferri-Inductor
Inductor
1SS270
1SS270
LAU4R7K
LAU2R2K
LAU100K
32
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
L
L
L
L
L
601
602
650
703
704
Ferri-Inductor
Ferri-Inductor
Ferri-Inductor
Inductor
Ferri-Inductor
LAU2R2K
LAU2R2K
LAU2R2K
LAU100K
LAU101K
L
L
X
X
AR
901
951
601
702
945
Coil 600µH
Ferri-Inductor
Ceramic Resonator 4.194MHz
Crystal Resonator 3.648MHz
CTH1219
LAU2R2K
CSS1047
CSS1447
DSP-201M-S00B
RESISTORS
R
R
R
R
R
312
313
314
315
316
RS1/10S272J
RS1/10S272J
RS1/10S151J
RS1/10S151J
RS1/10S221J
R
R
R
R
R
317
318
319
350
351
RS1/10S221J
RD1/4PU104J
RD1/4PU104J
RD1/4PU223J
RD1/4PU152J
R
R
R
R
R
352
353
354
355
356
RD1/4PU103J
RD1/4PU153J
RD1/4PU221J
RD1/4PU101J
RD1/4PU152J
R
R
R
R
R
357
358
360
411
412
RD1/4PU103J
RD1/4PU223J
RD1/4PU103J
RS1/10S681J
RS1/10S681J
R
R
R
R
R
413
414
415
416
417
RS1/10S681J
RS1/10S103J
RS1/10S681J
RD1/4PU473J
RS1/10S472J
R
R
R
R
R
418
419
420
421
422
RS1/10S473J
RS1/10S473J
RS1/10S473J
RD1/4PU473J
RD1/4PU473J
R
R
R
R
R
423
424
425
426
427
RD1/4PU681J
RD1/4PU681J
RS1/10S393J
RS1/10S681J
RD1/4PU222J
R
R
R
R
R
428
430
431
440
441
RD1/4PU222J
RS1/10S474J
RS1/10S153J
RS1/10S681J
RD1/4PU102J
KEH-3930R,3900R
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
R
R
R
R
R
442
443
444
445
446
RS1/10S473J
RS1/10S681J
RD1/4PU472J
RD1/4PU473J
RD1/4PU224J
CAPACITORS
R
R
R
R
R
460
461
464
465
474
RS1/10S162J
RS1/10S162J
RS1/10S272J
RS1/10S272J
RD1/4PU222J
R
R
R
R
R
475
476
477
478
479
RD1/4PU223J
RD1/4PU223J
RD1/4PU222J
RD1/4PU224J
RD1/4PU224J
R
R
R
R
R
480
499
601
604
610
RS1/8S0R0J
RS1/8S0R0J
RD1/4PU124J
RS1/10S473J
RAB4C473J
R
R
R
R
R
612
615
616
617
618
RD1/4PU473J
RD1/4PU103J
RS1/10S473J
RAB4C102J
RD1/4PU102J
R
R
R
R
R
621
623
624
626
627
RD1/4PU102J
RD1/4PU102J
RD1/4PU102J
RS1/8S102J
RS1/10S102J
R
R
R
R
R
628
629
637
649
650
RS1/10S102J
RS1/10S681J
RD1/4PU103J
RD1/4PU222J
RD1/4PU472J
R
R
R
R
R
651
652
653
654
655
RD1/4PU222J
RD1/4PU472J
RD1/4PU222J
RD1/4PU473J
RD1/4PU752J
R
R
R
R
R
656
657
660
713
716
RD1/4PU223J
RD1/4PU222J
RS1/10S1R0J
RS1/10S225J
RD1/4PU102J
R
R
R
R
R
721
722
723
724
725
RD1/4PU102J
RD1/4PU102J
RD1/4PU102J
RD1/4PU681J
RS1/8S0R0J
R
R
R
R
R
726
901
902
903
904
RS1/8S0R0J
RD1/4PU473J
RD1/4PU223J
RD1/4PU223J
RD1/4PU473J
R
R
R
R
R
905
906
907
908
909
RD1/4PU102J
RD1/4PU473J
RD1/4PU473J
RD1/4PU472J
RD1/4PU103J
R
R
R
R
R
910
911
912
914
944
RD1/4PU101J
RD1/4PU122J
RD1/4PU103J
RD1/4PU102J
RD1/4PU152J
R
R
R
R
R
951
952
953
954
955
RD1/4PU153J
RD1/4PU472J
RD1/4PU473J
RD1/4PU102J
RD1/4PU473J
Part No.
-------------------------
C
C
C
C
C
310
311
312
313
314
CEJA2R2M50
CEJA2R2M50
CEJA2R2M50
CEJA2R2M50
CEJA2R2M50
C
C
C
C
C
317
318
319
320
321
CEJA100M16
CEJA100M16
CKSQYB822K50
CKSQYB822K50
CEJA1R0M50
C
C
C
C
C
322
323
324
325
326
CEJA1R0M50
CKSQYB183K50
CKSQYB183K50
CKSQYB104K16
CKSQYB104K16
C
C
C
C
C
327
328
329
330
332
CKSQYB104K16
CKSQYB104K16
CEJA2R2M50
CEJA100M16
CKSQYB473K50
C
C
C
C
C
333
334
335
350
360
CEJA470M10
CKSQYB104K16
CKSQYB104K16
CEJA330M10
CKSQYB225K10
C
C
C
C
C
361
362
363
364
365
CEJA1R0M50
CKSYB225K16
CEJA100M16
CFTNA224J50
CFTNA224J50
C
C
C
C
C
366
367
368
399
411
CFTNA224J50
CFTNA224J50
CKSQYB104K16
CCH1344
CKSQYB223K50
C
C
C
C
C
412
413
414
415
416
CKSQYB223K50
CKSQYB102K50
CEJA220M10
CKSQYB473K50
CEJA101M10
C
C
C
C
C
417
418
441
442
462
CKSQYB472K50
CKSQYB472K50
CKSQYB182K50
CKSQYB223K50
CKSQYB123K50
C
C
C
C
C
463
466
467
481
490
CKSQYB123K50
CEJA1R0M50
CEJA1R0M50
CCSQCH151J50
CKSQYB103K50
C
C
C
C
C
491
492
601
602
603
CKSQYB102K50
CCSQCH101J50
CKSQYB473K50
CEJA2R2M50
CKSQYB103K50
C
C
C
C
C
604
608
609
610
650
CCSQCH101J50
CEJA4R7M35
CEJA100M16
CEJA220M10
CKSQYB223K50
C
C
C
C
C
711
712
714
715
718
CEJA220M6R3
CKSQYB104K16
CKSQYB471K50
CKSQYB104K16
CKSQYB471K50
3300µF/16V
33
KEH-3930R,3900R
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
C
C
C
C
C
719
720
725
726
901
CEJA220M6R3
CKSQYB104K16
CCSQCH270J50
CCSQCH270J50
CEJA101M10
R
R
R
R
R
16
17
18
19
20
RS1/16S223J
RS1/16S221J
RS1/16S221J
RS1/16S473J
RS1/16S470J
C
C
C
C
C
902
903
904
905
906
CKSQYB473K50
CCH1183
CKSQYB103K50
CCH1181
CKSQYB103K50
R
R
R
R
R
51
52
53
54
55
RS1/16S470J
RS1/16S103J
RS1/16S103J
RS1/16S331J
RS1/16S331J
C
C
C
907
908
910
CCH1179
CKSQYB103K50
CKSQYB473K50
R
R
R
R
R
56
57
58
59
60
RS1/16S560J
RS1/16S560J
RS1/16S102J
RS1/16S225J
RS1/16S133J
R
R
R
R
R
61
62
101
102
103
RS1/16S433J
RS1/16S562J
RS1/16S333J
RS1/16S103J
RS1/16S333J
R
R
R
R
R
104
106
108
110
111
RS1/16S562J
RS1/16S0R0J
RS1/16S0R0J
RS1/16S154J
RS1/16S273J
R
R
R
R
R
112
113
114
115
116
RS1/16S223J
RS1/16S222J
RS1/16S333J
RS1/16S334J
RS1/16S473J
R
R
R
R
R
117
118
122
202
203
RS1/16S333J
RS1/16S223J
RS1/16S0R0J
RS1/16S472J
RS1/16S225J
R
R
R
R
R
204
205
206
208
209
RS1/16S102J
RS1/16S220J
RS1/16S471J
RS1/16S104J
RS1/16S104J
R
R
R
R
R
210
213
251
902
904
RS1/16S563J
RS1/16S223J
RS1/16S225J
RS1/16S103J
RS1/16S473J
R
R
R
R
907
908
909
914
RS1/16S103J
RS1/16S681J
RS1/16S473J
RS1/16S562J
B
470µF/16V
330µF/10V
100µF/16V
Unit Number : CWE1500
Unit Name
: FM/AM Tuner Unit
MISCELLANEOUS
IC
IC
IC
Q
Q
1
2
3
1
2
IC
IC
IC
Transistor
Transistor
PML002A
PM4008A
BR9010FV
2SC4081
DTC124EU
Q
Q
Q
Q
Q
3
51
201
202
204
FET
Transistor
FET
Transistor
Transistor
3SK263
2SC4081
2SK932
DTC124EU
2SC4081
D
D
D
D
D
1
2
4
6
101
Diode
Diode
Diode
Diode
Diode
KV1410(23)
1SV248
KV1410(23)
KV1410(23)
1SS355
D
D
D
D
L
201
202
903
904
1
Diode
Diode
Diode
Diode
Coil
DAN217U
DAN217U
KV1410(23)
SVC253
CTC1155
L
L
L
L
L
2
3
4
201
202
Coil
Inductor
Coil
Inductor
Inductor
CTC1155
LCTB100K2125
CTC1155
LCTB330K1608
CTF1287
L
L
L
L
L
203
901
902
904
905
Inductor
Coil
Inductor
Inductor
Inductor
LCTA121J3225
CTC1154
LCTA3R3J3225
LCTBR47K1608
LCTBR47K1608
T
CF
CF
CF
CF
51
51
52
53
202
Coil
Ceramic Filter
Ceramic Filter
Ceramic Filter
Ceramic Filter
CTE1132
CTF1442
CTF1442
CTF1442
CTF1348
X
901
Crystal Resonator 10.250MHz
CSS1432
RESISTORS
R
R
R
R
R
1
2
6
7
8
RS1/16S153J
RS1/16S103J
RS1/16S103J
RS1/16S273J
RS1/16S473J
R
R
R
R
R
9
10
11
12
13
RS1/16S223J
RS1/16S473J
RS1/16S221J
RS1/16S103J
RS1/16S104J
34
CAPACITORS
C
C
C
C
C
1
2
4
6
8
CCSQCH5R0C50
CCSRCH5R0C50
CCSRCJ3R0C50
CKSQYB105K10
CKSRYB222K50
C
C
C
C
C
10
11
12
14
15
CCSRCH220J50
CCSRCH150J50
CCSRCH8R0D50
CCSRCJ3R0C50
CKSRYB103K50
C
C
C
C
C
16
17
18
19
20
CKSRYB222K50
CKSRYB222K50
CCSRCJ3R0C50
CKSRYB103K50
CKSRYB103K50
KEH-3930R,3900R
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
C
C
C
C
C
21
24
31
32
35
CKSRYB103K50
CKSQYB334K16
CKSRYB222K50
CCSRCH470J50
CKSRYB103K50
C
C
C
C
C
914
915
916
917
918
CKSRYB682K25
CKSQYB223K25
CKSQYB474K16
CKSYB475K10
CKSRYB223K25
C
C
C
C
C
51
52
53
54
55
CKSRYB103K50
CKSRYB473K16
CCSRCK2R0C50
CKSRYB103K50
CKSRYB104K16
C
C
C
C
C
919
920
921
922
923
CKSQYB225K10
CCSRCH270J50
CCSRCH270J50
CKSYB105K16
CKSRYB103K50
C
C
C
C
C
56
58
59
60
101
CKSRYB104K16
CKSQYB224K16
CKSRYB223K25
CKSRYB104K16
CEALNP100M10
C
C
C
C
C
C
102
103
105
106
107
CCSRCH151J50
CKSRYB473K16
CKSRYB682K25
CEAL2R2M50
CKSRYB103K50
C
C
C
C
C
108
109
110
111
112
CKSQYB474K16
CKSQYB474K16
CKSRYB104K16
CKSRYB104K16
CKSRYB104K16
C
C
C
C
C
113
114
115
116
117
CKSRYB123K25
CEAL220M6R3
CKSRYB473K16
CEAL2R2M50
CKSRYB102K50
C
C
C
C
C
120
121
122
123
125
CKSRYB153K25
CKSRYB332K50
CKSRYB682K25
CKSRYB681K50
CKSRYB103K50
C
C
C
C
C
126
127
128
201
202
CKSRYB103K50
CEAL2R2M50
CKSRYB103K50
CCSRCH471J50
CCSRCH100D50
C
C
C
C
C
203
204
205
206
207
CKSRYB104K16
CKSRYB332K50
CKSRYB103K50
CKSRYB104K16
CKSRYB473K16
C
C
C
C
C
208
209
210
211
212
CCSRCH560J50
CEAL470M6R3
CKSRYB103K50
CKSRYB103K50
CCSRCH101J50
C
C
C
C
C
215
216
217
219
220
CKSRYB223K25
CKSQYB334K16
CKSRYB103K50
CKSQYB105K10
CKSRYB104K16
C
C
C
C
C
221
222
223
224
225
CKSRYB473K16
CKSQYB334K16
CKSQYB474K16
CKSRYB104K16
CKSRYB272K50
C
C
C
C
C
226
902
904
905
906
CKSRYB682K25
CCSRCH270J50
CKSRYB223K25
CKSRYB103K50
CCSRTH100D50
C
C
C
C
C
907
909
910
912
913
CCSRTH150J50
CCSRTH100D50
CKSRYB332K50
CKSQYB474K16
CKSRYB223K25
Unit Number : CWM6813
(KEH-3930R/X1M/EW)
Unit Name
: Keyboard Unit
MISCELLANEOUS
IC
D
D
X
IL
1801
1801
1802
1801
1801
IL 1802
IL 1803
IL 1804
LCD1801
IC
Diode
Diode
Ceramic Resonator 4.97MHz
Lamp 14V 40mA
PD6293A
MA152WK
MA152WA
CSS1422
CEL1638
Lamp 14V 40mA
Lamp 14V 40mA
Lamp 14V 40mA
LCD
CEL1638
CEL1638
CEL1638
CAW1559
RESISTORS
R
R
R
R
R
1801
1802
1803
1804
1805
RS1/8S222J
RS1/8S222J
RS1/10S471J
RS1/10S471J
RS1/10S471J
R
1806
RS1/10S471J
CAPACITORS
C
1801
C
CKSQYB103K50
Unit Number : CWM6812
(KEH-3900R/X1M/EW)
Unit Name
: Keyboard Unit
MISCELLANEOUS
IC
D
D
X
IL
1801
1801
1802
1801
1801
IL 1802
IL 1803
IL 1804
LCD1801
IC
Diode
Diode
Ceramic Resonator 4.97MHz
Lamp 14V 40mA
PD6293A
MA152WK
MA152WA
CSS1422
CEL1547
Lamp 14V 40mA
Lamp 14V 40mA
Lamp 14V 40mA
LCD
CEL1547
CEL1547
CEL1547
CAW1559
RESISTORS
R
R
R
R
R
1801
1802
1803
1804
1805
RS1/8S222J
RS1/8S222J
RS1/10S471J
RS1/10S471J
RS1/10S471J
R
1806
RS1/10S471J
CAPACITORS
C
1801
CKSQYB103K50
35
KEH-3930R,3900R
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
D
Part No.
-------------------------
251
351
352
IC
IC
Diode
CXA2559Q
PA2020A
1SS355
RESISTORS
C
C
C
C
C
251
252
253
254
255
CKSRYB331K50
CKSRYB331K50
CKSRYB331K50
CKSRYB331K50
CKSRYB103K50
C
C
C
C
C
256
272
273
301
302
CKSRYB103K50
CKSRYB104K16
CEJA220M16
CKSRYB104K16
CKSRYB104K16
C
C
C
C
C
313
351
352
353
354
CCSRCH101J50
CKSYB224K25
CKSRYB392K50
CKSRYB103K50
CKSRYB103K50
C
C
C
C
C
355
356
401
402
403
CKSYB104K50
CKSRYB103K50
CKSQYB334K16
CKSRYB392K50
CKSRYB683K16
R
R
R
R
R
255
256
257
258
271
RS1/16S221J
RS1/16S221J
RS1/16S102J
RS1/16S102J
RS1/16S102J
R
R
R
R
R
272
273
274
281
282
RS1/16S102J
RS1/16S102J
RS1/16S102J
RS1/8S0R0J
RS1/8S0R0J
R
R
R
R
R
283
284
285
286
287
RS1/8S0R0J
RS1/8S0R0J
RS1/16S0R0J
RS1/16S0R0J
RS1/8S0R0J
R
R
R
R
R
290
301
302
303
304
RS1/8S0R0J
RS1/16S183J
RS1/16S163J
RS1/16S163J
RS1/16S163J
S
S
EGN
R
R
R
R
R
305
323
351
352
353
RS1/16S163J
RS1/8S0R0J
RS1/16S102J
RS1/16S102J
RS1/16S102J
Miscellaneous Parts List
R
R
R
R
R
354
355
362
373
374
RS1/16S102J
RS1/10S274J
RS1/8S301J
RS1/8S0R0J
RS1/8S0R0J
R
R
R
401
402
403
RS1/16S472J
RS1/16S183J
RS1/16S823J
6. ADJUSTMENT
There is no information to be shown in this chapter.
36
Part No.
-------------------------
CAPACITORS
Unit Number : EWM1023
Unit Name
: Deck Unit
MISCELLANEOUS
IC
IC
D
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
E
M
M
HD
Unit Number :
Unit Name
: REEL SENSE PCB
1
2
1
1
2
1
Switch(LOAD)
Switch(MODE)
Photo-reflector
Motor Unit(MAIN)
Motor Unit(SUB)
Head Assy
Fuse(10A)
ESG1007
ESG1007
EGN1004
EXA1491
EXA1580
EXA1592
CEK1136
KEH-3930R,3900R
7. GENERAL INFORMATION
7.1. DISASSEMBLY
Cassette Mechanism Module
- Remove the Case(not shown)
1. Remove the two screws.
2. Remove the Case.
- Remove the Cassette Mechanism Module
(not shown)
1. Remove the four screws.
2.Disconnect the connector, and then remove the
Cassette Mechanism module.
- Remove the Panel Unit(Fig.1)
Disengage the stopper at two locations indicated by arrow.
Remove the Panel Unit.
Fig.1
Panel Unit
- Remove the Tuner Amp Unit(Fig.2)
Remove the two screws.
Remove the three screws.
Remove the screw.
Unbend the tabs at four locations indicated
by arrow until straight.
Remove the Tuner Amp Unit.
Tuner Amp Unit
Fig.2
37
KEH-3930R,3900R
7.2 PARTS
7.2.1 IC
- Pin Functions (PE5088A)
Pin No.
1,2
3
4
5
6
7
8
9
10
11
12
13
14
15
16–18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37-39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56,57
58
59
60
61
38
Pin Name
NC
ADPW
AVSS
swvdd
st
AVREF1
KYDT
DPDT
SDBW
TUNPDI
TUNPDO
TUNPCK
TUNPCE
currq
NC
RECIVE
PCE2
fm/AM
VST
VCK
VDT
LCDPW
ILMPW
LOCH
LOCL
NC
rimute
CM
NR
VSS
SC2
SC1
MSIN
NC
n/R
PLAY
loadsw
POS
RES
PEE
NES
RDS57K
STBY
NC
drst
tmute
ANTPW
SD
mute
SYSPW
NC
rdslk
RDT
reset
ldet
I/O
Format
O
C
O
I
C
I
O
I
I
O
O
O
O
C
C
C
C
O
O
O
O
O
O
O
O
O
O
C
C
C
C
C
C
C
C
C
C
O
O
O
N
C
N
O
O
I
C
C
O
O
I
I
I
O
I
I
O
O
O
O
I
O
O
I
I
I
I
C
C
C
C
C
C
C
C
Function and Operation
Not used
A/D converter power supply output
GND
Grille power supply control output
FM stereo input
Connected to 5V line
Key data input
Display data output
SDBW input
PLL IC data input
PLL IC data output
PLL IC clock output
PLL IC chip enable output
Tuner voltage FIX output
Not used
During RDS data reception output
PLL IC chip enable output
FM/AM power select output
Strobe pulse output for electronic volume
Clock output for electronic volume
Data output for electronic volume
LCD back light power supply control output
Illumination power supply control output
LOCH output
LOCL output
Not used
RI output port
Cassette mechanism capstan motor control output
Dolby B NR output
GND
Cassette mechanism sub motor control output
Cassette mechanism sub motor control output
Cassette mechanism MS sense input
Not used
Tape direction forward / reverse output
Tape MS filter select output
Tape loading input
Cassette mechanism position sense input
Cassette mechanism reverse end sense input
Beep tone output
Cassette mechanism forward end sense input
57kHzBP-OUT sense input
Stand-by output
Not used
Decoder reset output
Tuner mute output
Antenna power output
SD input
Mute output
System power supply control output
Not used
RDS LK signal input
RDS data input
Reset input
PLL lock sense input
KEH-3930R,3900R
Pin No.
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
Pin Name
rck
dsens
TELIN
asens
bsens
NC
VDD
X2
X1
GND
NC
TESTIN
AVDD
AVREF0
SL
MODELIN
NL1
NL2
NC
I/O
I
I
I
I
I
Format
O
I
I
I
I
I
I
I
1
20
*PE5088A
21
80
Function and Operation
RDS clock input
Grille detach sense input
Telephone mute input
ACC power sense input
Back up power sense input
Not used
VDD
Oscillator output
Oscillator input
Connect to GND
Not used
Test program mode input
A/D converter analog power supply (VDD)
A/D converter standard voltage input
Signal level input
Model select input
Noise level 1 input
Noise level 2 input
Not used
Format
C
N
Meaning
C MOS
N Channel open drain
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
48
33
*PD6293A
49
17
64
1
32
16
60
61
41
40
39
KEH-3930R,3900R
- Pin Functions (PD6293A)
Pin No.
1-5
6-9
10
11-14
15,16
17
18
19
20
21
22
23
24
25,26
27
28
29-32
33-55
56
57-64
Pin Name
SEG4-0
COM3-0
VLCD
KST3-0
KDT0,1
REM
DPDT
NC
KYDT
MODA
X0
X1
VSS
KDT2,3
NC
KST4
NC
SEG35-13
VDD
SEG12-5
I/O
O
O
Function and Operation
LCD segment output
LCD common output
LCD drive power supply
Key strobe output
Key data input (analogue input)
Remote control reception
Display data input
Not used
Key data output
GND
Crystal oscillator connection pin
Crystal oscillator connection pin
GND
Key data input
Not used
Key strobe output
Not used
LCD segment output
Power supply
LCD segment output
O
I
I
I
O
I
O
O
O
STB
CLK
DATA
DVcc
REARout-R
FRNTout-R
FADERin-R
TONEout-R
NC
BASS-C2-R
BASS-R-R
BASS-C1-R
TREB-R
VRin-R
LOUD-R
ZCin-R
SWout-R
AGND
IN4(-)-R
IN4(+)-R
IN3-R
IN2-R
IN1-R
VCC
SN761029DL
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
Isolator
Volume, Treble
Loudness
Bass
Fader
Bass
Fader
Gain
Adjust
Power
Supply
A
Zero-cross
Detector
3 Line Serial Bus
Gain
Adjust
Volume,
Loudness Treble
Power
Supply
40
ZCin-L
Ct
SWout-L
DGND
AGND
AGND
IN4(-)-L
VREFin
IN4(+)-L
REARout-L
IN3-L
FRNTout-L
IN2-L
FADERin-L
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
TONEout-L
8
NC
7
BASS-C2-L
6
BASS-R-L
5
BASS-C1-L
4
TREB-L
3
VRin-L
2
LOUD-L
1
IN1-L
A
AVcc
Isolator
KEH-3930R,3900R
S-80834ANY
BR9010FV
NC
VCC
1
8
WC
GND
CS
2 CS : Chip select input
7
SK : Serial data clock input
DI : Serial data input
DO : Serial data output
3 WC: Write control input
6
SK
4
DI
5
DO
1
2
3
OUT
VDD
VSS
PM4009A
41
KEH-3930R,3900R
7.2.2 DISPLAY
42
COMMON
SEGMENT
- CAW1559
KEH-3930R,3900R
8. OPERATIONS AND SPECIFICATIONS
8.1 OPERATIONS
EJECT button
SOURCE/OFF button
BAND button
Cassette door
AUDIO button
Buttons 1–6
DISP button
+/– button
5/∞/2/3
buttons
Detach button
TA/AF button
LOCAL/BSM button
PTY button
43
44
Hold for 1 second
3. Turn the source OFF.
2. Raise or lower the volume.
• The cassette player will not change when no tape is set in this product.
• When this product’s blue/white lead is connected to the car’s Auto-antenna relay control terminal,
the car’s Auto-antenna extends when this product’s source is switched ON. To retract the antenna,
switch the source OFF.
Note:
Each press of the SOURCE/OFF button selects the desired source in the following order:
Tape = Tuner
Each press changes the Source ...
1. Select the desired source (e.g. Tuner).
• Loading a cassette in this product.
Note:
The following explains the initial operations required before you can listen to music.
To Listen to Music
Basic Operation
0.5 seconds or more
Seek Tuning
Preset Number Indicator
2 seconds or more
Broadcast station preset memory
• Up to 12 FM stations (6 in F1 (FM1) and F2 (FM2)) and 6
MW/LW stations can be stored in memory.
• You can also use the 5 or ∞ buttons to recall broadcast
stations memorized in buttons 1 through 6.
Note:
2 seconds or less
Preset station recall
• You can memorize broadcast stations in buttons
1 through 6 for easy, one-touch station recall.
Preset Tuning
Band Indicator
Frequency Indicator
F1 (FM1) = F2 (FM2)
= MW/LW
Band
• If you continue pressing the button for longer than 0.5 seconds, you can skip
broadcast stations. Seek Tuning starts as soon as you release the button.
• Stereo indicator “” lights when a stereo station is selected.
Note:
0.5 seconds or less
Manual Tuning (step by step)
• You can select the tuning method by changing the length
of time you press the 2/3 button.
Manual and Seek Tuning
This product’s AF function can be switched ON and OFF. AF should be switched OFF
for normal tuning operations.
Basic Operation of Tuner
KEH-3930R,3900R
Direction Indicator
• The Tape function can be turned ON/OFF with
the cassette tape remaining in this product.
Note:
Eject
Cassette Loading Slot
Direction Change
• Fast Forward/Rewind and Music Search can be canceled by pressing the BAND button.
Note:
REW (Rewind) = R-MS (Rewind-Music Search) = Normal Playback
• Each press of the 2 button selects Rewind or Rewind-Music Search.
FF (Fast Forward) = F-MS (Forward-Music Search) = Normal Playback
• Each press of the 3 button selects Fast Forward or Forward-Music
Search.
Fast Forward/Rewind and Music Search
Basic Operation of Cassette Player
Basic Operation
3. Cancel the Audio Menu.
2. Operate a mode.
Each press changes the Mode ...
1. Select the desired mode in the Audio Menu.
• After entering the Audio Menu, if you do not perform an operation within about 30 seconds, the
Audio Menu is automatically canceled.
Note:
With this Menu, you can adjust the sound quality.
Entering the Audio Menu
Audio Adjustment
KEH-3930R,3900R
45
46
The display shows “+6” – “–6”
2. Boost or attenuate the bass
level with the 5/∞ buttons.
1. Press the AUDIO button and select the Bass mode (BAS) in the Audio Menu.
You can adjust a Bass level as desired.
Bass Adjustment (BAS)
• “FAD 0” is the proper setting when 2 speakers are in use.
Note:
“BAL L9” – “BAL R9” is displayed
as it moves from left to right.
3. Adjust left/right speaker balance with the 2/3 buttons.
“FAD F15” – “FAD R15” is displayed as it moves from front to
rear.
2. Adjust front/rear speaker balance with the 5/∞ buttons.
1. Press the AUDIO button and select the Fader/Balance mode (FAD) in the
Audio Menu.
This function allows you to select a Fader/Balance setting that provides ideal listening
conditions in all occupied seats.
Balance Adjustment (FAD)
The Audio Menu features the following functions.
Audio Menu Functions
Audio Adjustment
2. Switch the Loudness function
ON/OFF with the 5/∞ buttons.
“LOUD”
1. Press the AUDIO button and select the Loudness mode (LOUD) in the Audio
Menu.
The Loudness function compensates for deficiencies in the low and high sound ranges at
low volume.
Loudness Adjustment (LOUD)
The display shows “+6” – “–6”
2. Boost or attenuate the treble
level with the 5/∞ buttons.
1. Press the AUDIO button and select the Treble mode (TRE) in the Audio
Menu.
You can adjust a Treble level as desired.
Treble Adjustment (TRE)
KEH-3930R,3900R
6. To terminal always supplied with
power regardless of ignition switch
position.
16. Rear
≠
+
≠
+
13. Left speaker
22. Green/black
21. Green
18. White/black
17. White
12. To system control terminal of
the power amp or Auto-antenna
relay control terminal.
(Max. 300 mA 12 V DC.)
11. Blue/white
15. Front
10. Fuse
25. With a 2 speaker system, do not connect
anything to the speaker leads that are not
connected to speakers.
7. Black (ground)
5. Yellow
4. To electric terminal controlled by
ignition switch (12 V DC) ON/OFF.
8. To vehicle (metal) body.
3. Red
2. Antenna jack
1. This Product
9. Yellow/black
If you use a cellular telephone, connect it via the
Audio Mute lead on the cellular telephone. If
not, keep the Audio Mute lead free of any
connections.
24. Violet/black
23. Violet
20. Gray/black
19. Gray
≠
+
≠
+
14. Right speaker
16. Rear
15. Front
KEH-3930R,3900R
47
KEH-3930R,3900R
8.2 SPECIFICATIONS
General
FM tuner
Power source .......... 14.4 V DC (10.8 – 15.1 V allowable)
Grounding system ........................................ Negative type
Max. current consumption ........................................ 8.5 A
Dimensions
(mounting size) ...... 178 (W) × 50 (H) × 155 (D) mm
(front face) .............. 188 (W) × 58 (H) × 19 (D) mm
Weight ...................................................................... 1.2 kg
Frequency range ...................................... 87.5 – 108 MHz
Usable sensitivity
.................. 11 dBf (1.0 µV/75 Ω, mono, S/N: 30 dB)
50 dB quieting sensitivity .... 16 dBf (1.7 µV/75 Ω, mono)
Signal-to-noise ratio ...................... 70 dB (IEC-A network)
Distortion .......................... 0.3% (at 65 dBf, 1 kHz, stereo)
Frequency response ...................... 30 – 15,000 Hz (±3 dB)
Stereo separation .......................... 40 dB (at 65 dBf, 1 kHz)
Amplifier
Maximum power output ...................................... 40 W × 4
Continuous power output .................................... 22 W × 4
(DIN45324, +B = 14.4 V)
Load impedance .......................... 4 Ω (4 – 8 Ω allowable)
Tone controls
(Bass) .............................................. ±12 dB (100 Hz)
(Treble) ............................................ ±12 dB (10 kHz)
Loudness contour ........ +10 dB (100 Hz), +7 dB (10 kHz)
(volume: –30 dB)
MW tuner
Frequency range ...................................... 531 – 1,602 kHz
Usable sensitivity .............................. 18 µV (S/N: 20 dB)
Selectivity .................................................. 50 dB (±9 kHz)
LW tuner
Frequency range ........................................ 153 – 281 kHz
Usable sensitivity .............................. 30 µV (S/N: 20 dB)
Selectivity .................................................. 50 dB (±9 kHz)
Cassette player
Tape ........................ Compact cassette tape (C-30 – C-90)
Tape speed ...... 4.76 cm/sec.(+0.14cm/sec., -0.05cm/sec.)
Fast forward/rewinding time .... Approx. 100 sec. for C-60
Wow & flutter .......................................... 0.09% (WRMS)
Frequency response ...................... 30 – 16,000 Hz (±3 dB)
Stereo separation ...................................................... 45 dB
Signal-to-noise ratio...................... 61 dB (IEC-A network)
Note:
• Specifications and the design are subject to possible modification without notice due to improvements.