PIONEER KEH-3900R, KEH-3930 Service Manual

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

ORDER NO.

CRT2420

HIGH POWER CASSETTE PLAYER WITH RDS TUNER

KEH-3930R X1M/EW

CONTENTS

1. SAFETY INFORMATION ............................................2

2. EXPLODED VIEWS AND PARTS LIST.......................2

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.....9

4. PCB CONNECTION DIAGRAM ................................22

5. ELECTRICAL PARTS LIST ........................................32

6. 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

KEH-3930R/X1M/EW

- This service manual should be used together with the following manual(s):

Model No. Order No. Mech. Module Remarks
CX-1011 CRT2406 3L Cassette Mech. Module:Circuit Description, Mech.Description, Disassembly

KEH-3900R X1M/EW

2

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

10

1

13

7

11

9

8

12

2

5

4

6

3

3

KEH-3930R,3900R

1 Cord Assy CDE6100
2 Accessory Assy CEA1917
3 Screw CBA1304
4 Handle CNC5395
5 Bush CNV3930

* 6 Polyethylene Bag E36-615

7 Polyethylene Bag CEG-162
8 Carton

See Contrast table(2)

9 Contain Box See Contrast table(2)

10 Protector CHP2243

11 Protector CHP2244
12-1 Owner’s Manual CRD3122
12-2 Owner’s Manual CRD3123
12-3 Installation Manual CRD3124

* 12-4 Passport CRY1013

* 12-5 Warranty Card CRY1157

12-6 Polyethylene Bag CEG1116

13 Case Assy CXB3520

Mark No. Description Part No. Mark No. Description Part No.

(1) PACKING SECTION PARTS LIST

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.

Part No.

Mark No. Symbol and Description KEH-3930R/X1M/EW KEH-3900R/X1M/EW

8 Carton CHG3844 CHG3843
9 Contain Box CHL3844 CHL3843

(2) CONTRAST TABLE
KEH-3930R/X1M/EW and KEH-3900R/X1M/EW are constructed the same except for the following:

- Owner's Manual, Installation Manual

Model Part No. Language
KEH-3930R/X1M/EW CRD3122 English, Spanish, German
KEH-3900R/X1M/EW CRD3123 French, Italian, Dutch

CRD3124 English, Spanish, German,

French, Italian, Dutch

4

KEH-3930R,3900R

2.2 EXTERIOR

5

KEH-3930R,3900R

1 Screw BSZ26P050FMC
2 Screw BSZ30P050FMC
3 Screw BSZ30P200FMC
4 Cord Assy CDE6100
5 Plug CKM1314

6 Case CNB2350
7 Earth Plate CNC8368
8 Spacer CNM4913
9 Insulator CNM5963

10 Tuner Amp Unit CWM6806

11 Screw BSZ26P080FMC
12 Screw BSZ26P160FMC
13 Cord CDE6158
14 FM/AM Tuner Unit CWE1500
15 Holder CNC7532

16 Plug(CN604) CKM1288
17 Connector(CN602) CKS3568
18 Connector(CN601) CKS3581
19 Antenna Jack(CN402) CKX1056
20 Panel CNB2344

21 Holder CNC5399
22 Holder CNC6845
23 Holder CNC7533
24 Holder CNC7996
25 Insulator CNM5967

26 Heat Sink CNR1505
27 Holder Unit CXB2687
28 •••••
29 Chassis Unit

See Contrast table(2)

30 Detach Grille Assy See Contrast table(2)

31 Screw BPZ20P100FZK
32 Button(DETACH)

See Contrast table(2)

33 Button(1-6) CAC6275
34 Button(EJECT) CAC6277
35 Button(+ -)

See Contrast table(2)

36 Button(SELECT) See Contrast table(2)
37 Button(SOURCE/LOUD) CAC6494
38 Spring CBH2210
39 Cover

See Contrast table(2)

40 Keyboard Unit See Contrast table(2)

41 LCD(LCD1801) CAW1559
42 Connector(CN1801) CKS3580
43 Holder CNC8517
44 Rubber CNV5954
45 Lighting Conductor CNV6274

46 Rubber CNV5968
47 Grille Unit

See Contrast table(2)

48 Button CAC4836
49 Spring CBH1834
50 Spring CBH1835

51 Spring CBH2182
52 Bracket CNC6135
53 Bracket CNC6791
54 Arm CNV4692
55 Arm CNV4693

56 Arm CNV4728
57 Panel Unit

See Contrast table(2)

58 Door See Contrast table(2)
59 Spring CBH1838
60 Screw IMS20P030FZK

61

Cassette Mechanism Module EXK4100

62 Screw ISS26P055FUC
63 Fuse(10A) CEK1136
64 IC(IC302) TDA7384
65 Transistor(Q904) 2SD2396

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.

Part No.

Mark No. Symbol and Description KEH-3930R/X1M/EW KEH-3900R/X1M/EW

29 Chassis Unit CXB4530 CXB4529
30 Detach Grille Assy CXB4850 CXB4849
32 Button(DETACH) CAC5929 CAC5789
35 Button(+ -) CAC6458 CAC6273
36 Button(SELECT) CAC6459 CAC6276

39 Cover CNS5662 CNS5661
40 Keyboard Unit CWM6813 CWM6812
47 Grille Unit CXB5840 CXB4519
57 Panel Unit CXB4929 CXB4928
58 Door CAT2108 CAT2109

(2) CONTRAST TABLE
KEH-3930R/X1M/EW and KEH-3900R/X1M/EW are constructed the same except for the following:

6

KEH-3930R,3900R

2.3 CASSETTE MECHANISM MODULE

7

KEH-3930R,3900R

1 Screw BSZ20P040FMC
2 Washer CBF1037
3 Washer CBG1003
4 Screw EBA1028
5 Screw CBA1037

6 Spring EBH1531
7 Spring EBH1624
8 Spring EBH1625
9 Spring EBH1626

10 Spring EBH1627

11 Spring EBH1628
12 Cord EDD1024
13 Photo-reflector(EGN1) EGN1004
14 Arm ENC1526
15 Lever ENC1530

16 Lever ENC1531
17 Arm ENC1532
18 Frame ENC1533
19 Holder ENC1534
20 Gear ENC1535

21 Arm ENC1536
22 Roller ENR1040
23 Belt ENT1027
24 Collar ENV1508
25 Arm ENV1539

26 Arm ENV1540
27 Gear ENV1544
28 Gear ENV1547
29 Gear ENV1548
30 Worm Wheel ENV1550

31 Lever ENV1551
32 Flywheel ENV1554
33 Gathering PCB ENX1054
34 Switch(S1,S2) ESG1007
35 Deck Unit EWM1023

36 Plug(CN251) CKS3540
37 Gathering PCB ENX1053
38 Motor Unit(M1) EXA1491
39 Motor EXM1028
40 Head Assy(HD1) EXA1592

41 Motor Unit(M2) EXA1580
42 Screw BMZ20P022FMC
43 Bracket ENC1528
44 Chassis Unit EXA1582
45 Pinch Holder Unit EXA1584

46 Pinch Roller ENV1518
47 Pinch Holder Unit EXA1583
48 Pinch Roller ENV1518
49 Reel Unit EXA1585
50 Head Base Unit EXA1586

51 Lever Unit EXA1587
52 Gear Unit EXA1588
53 Motor Unit(Service) EXX1055
54 Washer HBF-179
55 Screw CBA1250

56 Bracket ENC1542

Mark No. Description Part No. Mark No. Description Part No.

- CASSETTE MECHANISM MODULE SECTION PARTS LIST

8

KEH-3930R,3900R

9

KEH-3930R,3900R

1

2

34

1

2

34

D

C

B

A

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

TUNER Lch

Q476

Q472

Q474

LDET

TMUTE

B.U

VDD

Q903

SYSPW

TMUTE

SYSPW

VDD

AVDD

61

55 74

68

SYSTEM

CONTROLLER

PE5088A

IC601(1/2)

TUN-L

TUN-L

ELECTRONIC VOLUME

SN761029DL

IC301

20
19

2

3

TAPE-L

RL
FL

POWER AMP

TDA7384

IC302

11
15

MUTE

STBY

FL
RL

FL+
FL-

RL+

RL-

22 4

9
7

19
17

SYSPW

B.U

B.U

SYSPW

Q350

Q904

Q352

Q351

Q905

Q901

Q902

MUTE

8.4V
REGULATOR
RESET

IC602

S-80834ANY

VCC

VDD

54

60

1

2

66 65

70

69

64

30

48

MUTE

RESET

BSENS

ASENS

SWVDD

DPDT

KYDT

DSENS

RIMUTE

STBY

LOADSW

X1

X2

TELIN

SYSTEM

CONTROLLER

IC601(2/2)

PE5088A

X601

Q906

BSENS

ASENS

ACC

FUSE

10A

TEL MUTE

Q951

B.U

STBY

B.U

MUTE

LOAD

42

63

8

9

5

Q650

SWVDD

VDD

SW5V

ILL

KYDT

DPDT

SW5V

VDD SWITCH

5

1

4

2
1

3

4

11

9

20

19

3

4

11

9

20

19

8

2

11

10

1

7

13

A

TUNER AMP UNIT

D

DECK UNIT

C

KEYBOARD UNIT

734 5

734 5

LCD DRIVER

IC1801

PD6293A

DPDT
KYDT

VDD

VLCD

XO

XI

X901

18
20

50

10

22

23

IC251

CXA2559Q

IC351

PA2020A

EQ AMP

MECHANISM

DRIVER

CN251

CN252

CN254

CN255

CN253

7

5

TAPE+B

Lch

17

FWD
L-ch

REV
L-ch

37
36
39

18

19

17

3

15 6

8

7

10

CN256

3

15 6

S1

LOAD

S2

MODE

EGN1

REEL

SENSE

M

M

M2

SUB

MOTOR

M1

MAIN

MOTOR

5
2
1

E

REEL SENSE PCB

CN602

CN604

CN901

CN601

CN1801

VCK/VDT/VST

ACC

BACK UP

FL+
FL-

RL­RL+

TEL MUTE

B.REMOTE

VCC

LOUT

RIMUTE

LD

STBY

B8

B5
B6

B7

A4

A7

KEY MATRIX

LCD

ANT1 TV

ANT2 TV

RF TV

IC 3

BR9010FV

AM 2ND IF 450kHz

ANTENNA

JACK

CN401

1

2

B

FM/AM TUNER UNIT

27

28

FM FRONT END

Q3

Q201 Q204

AM RF

FM/AM 1ST IF 10.7MHz

T51 Q51 CF51 CF52 CF53

MIXER.IF AMP DET

IC 1

PML002A

38 39 42 44 46 63

32 19

46

6

21
18

LDET

COMP

34 33 41 44 11 12 13

69
70
54
78
65
71

75746157554533

35

22

2225 10 14 12 15 16 8 13 2 3 4

CF202

VDD

LOCL

VCC

Q411

VCC

VDD

DI/DO

CE2CKCE1

SDBLSLFMSD

PCE2

TUNPCK

TUNPCE

SDBW

SL

SD

PDIO

NL1

NL2

EEPROM

5
6

4
3

IC 2 PM4008A

FM MPX

25 24

NL1

Q202

32

LDET

51

RDS

DECODER

IC 701

PM4009A

20

11 12

24

X702

Q477

VDD

FM/AM

FM/AM

21

78

NL1

SD
SL
SDBW
TUNPCE

TUNPCK
PCE2
TUNPDO

LOCL

53
76
10
14
13
20
12

28

TUNPDI

11

PDIO

SWVDD

A5

POWER SWITCH

1

6

IC901

TPD1018F

SYSPW

8

8

DSENS

A

A

10

KEH-3930R,3900R

1

23

4

1234

D

C

B

A

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-b

A-aA-a

A-b A-b

A-b A-b

A-a A-a

Large size

SCH diagram

Guide page

Detailed page

A

A-a

ANTENNA JACK

PE5088A

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.

Symbol indicates a resistor.
No differentiation is made between chip resistors and
discrete resistors.

NOTE :

Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.

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

FM(100%) : -15.5dBs
AM(30%) : -26dBs

SYSTEM CONTROLLER

RDS DECODER

SOUR
ELECT

RESET

TAPE 315Hz(0dB)
: -7.9dBs

FM
AM
TA

A

B

E

D

TUNER AMP UNIT

FM/AM TUNER UNIT

CASSETTE MECHANISM

MODULE

11

KEH-3930R,3900R

5

6

78

5

6

78

D

C

B

A

A-b

A

600µH

3300/16

CEK1136

TEL MUTE

2

1

4

3

7

8

5

6

13

12

11

10

B5

B6

B3

B4

B7

B8

B1

B2

A4

A7

A8

A5

>

CE SELECTOR/

POWER AMP

5V REGULATOR

SWD 5V

POWER SWITCH

ACC SENSE

BACK UP SENSE

TELEPHONE MUTE

8.4V REGULATOR

OFF MUTE

SYSTEM MUTE

FM: 7.5dBs
AM : -1.0dBs
TAPE : -2.9dBs

FM : 33.5dBs
AM : 25.0dBs
TAPE : 23.1dBs

C

KEYBOARD UNIT

12

KEH-3930R,3900R

1

23

4

1234

D

C

B

A

ANTENNA JACK

FM(100%) : -15.5dBs

AM(30%) : -26dBs

SYSTEM CONTROLLER

RDS DECODER

SOURCE SE

ELECTRONI

RESET

FM: -15.5dB

AM : -26.0dB

TAPE : -7.9d

A-a

A-a

A-b

A

B

TUNER AMP UNIT

FM/AM TUNER UNIT

1

2

13

KEH-3930R,3900R

5

6

78

5

6

78

D

C

B

A

PE5088A

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.

Symbol indicates a resistor.

No differentiation is made between chip resistors and

discrete resistors.

NOTE :

Symbol indicates a capacitor.

No differentiation is made between chip capacitors and

discrete capacitors.

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

SYSTEM CONTROLLER

TAPE 315Hz(0dB)

: -7.9dBs

A-a

A-a

A-b

E

D

CASSETTE MECHANISM MODULE

3

14

1

23

4

1234

D

C

B

A

600µH

3300/16

CEK1136

2

1

437

8

5

6

13

B5

B6B3B4B7B8

B1

B2

A4

>

POWER AMP

8.4V REGULATOR

SYSTEM MUTE

FM: 7.5dBs

AM : -1.0dBs

TAPE : -2.9dBs

FM : 33.5dBs

AM : 25.0dBs

TAPE : 23.1dBs

A-a

A-b

A-b

1

2

KEH-3930R,3900R

15

5

6

78

5

6

78

D

C

B

A

TEL MUTE

12

11

10

A4

A7

A8

A5

>

5V REGULATOR

SWD 5V

POWER SWITCH

ACC SENSE

BACK UP SENSE

TELEPHONE MUTE

OFF MUTE

A-b

A-a

A-b

3

KEH-3930R,3900R

C

KEYBOARD UNIT

16

KEH-3930R,3900R

1

23

4

1234

D

C

B

A

B

KV1410(23)

KV1410(23)

Mark
None
F0
F65
F125
A0
A74
A125

Band
–
FM
FM
FM
AM
AM
AM

Input Level
–
0dBf
65dBf
125dBf
0dBµ
74dBµ
125dBµ

DAN217U

DAN217U

3.3 FM/AM TUNER UNIT

B

A

FM/AM TUNER UNIT

17

KEH-3930R,3900R

5

6

78

5

6

78

D

C

B

A

KV1410(23)

B

18

KEH-3930R,3900R

1

23

4

1234

D

C

B

A

LCD DRIVER,
KEY CONTROLLER

PD6293A

CAW1559

C

3.4 KEYBOARD UNIT

C

KEYBOARD UNIT

19

KEH-3930R,3900R

5

6

78

5

6

78

D

C

B

A

LOUD

PTY

TA/AF

LOCAL/BSM

KEH-3930R/X1M/EW KEH-3900/X1M/EW

IL1801-1804 CEL1638(14V 40mA) CEL1547(14V 40mA)

C

A

CN601

20

KEH-3930R,3900R

1

23

4

1234

D

C

B

A

DECK UNIT

MUTE

CXA2559Q

11

12

13

14

15

16

17

18

19

20

40

39

38

37

36

35

34

33

32

31

30

292827

26

252423

22

21

1

234

5

678

9

10

R256

220

R287

0R0

C273

22/16

R283 0R0

R284 0R0

R282 0R0

C253 330P

C254 330P

C252 330P

C251 330P

R281 0R0

R255 220

C256

R01

R258

1K

R301

18K

R273 1K

R274 1K

R271 1K

R272 1K

R290

C403

R403
C402
3900P

C401

R33

R323 0R0

R257

1K

C255

R01

C272

R1

C313 100P

R286 0R0

R285 0R0

HD1
HEAD ASSY
EXA1592

TEST TAPE
NCT-150
(400Hz, 200nWb/m)

RL

RR

FR

FL

C302

R1

C301

R1

R304

R302

16K

16K

R305

16K

R303

16K

-6dBs(388mV)±1dB

Fwd-R

Fwd-L

Rev-R

Rev-L

PBFB2
PBRIN2
PBGND
PBFIN2
VCT

PBREF
PBFIN1

PBGND
PBRIN1
PBFB1

PBTC1

PBOUT1

OUTREF1

TAPEIN1

VCC

LINEOUT1

TCH1

MSLPF

MSMODE

DRSW

TAPESW

MUTESW

MSOUT

MSTC

G1FB
G2FB

PBTC2

PBOUT2

OUTREF2

TAPEIN2

GND

DIREF

LINEOUT2

TCH2

MSSW

CN252

CN251

EQ AMP

IC251

D

3.5 CASSETTE MECHANISM MODULE

D

A

CN602

D

21

KEH-3930R,3900R

5

6

78

5

6

78

D

C

B

A

REEL SENSE

PCB

SWITCHES:
PCB UNIT

S1:LOAD SWITCH..........EJECT-PLAY

S2:MODE SWITCH............ON-OFF

The underlined indicates the switch position.

R290 0R0

C403 R068

R403 82K
C402
3900P

C401

R33

R402

18K

R401

4R7K

R351 1K

R352 1K

R353 1K

R354 1K

R373 0R0

R355 270K

C352

3900P

R362 300

C351 R22

C353 R01

C354 R01

R374 0R0

C356 R01

C355 R1

D352 1SS355

M1 MOTOR UNIT
(MAIN MOTOR)
EXA1491

S1 LOAD
ESG1007

S2
ESG1007

MODE

REEL SENSE

EGN1
EGN1004

M2
MOTOR UNIT
(SUB MOTOR)
EXA1580

RS3

RS2

RS1

SC2

SC1

TAB

MC

CE

VCC2

NC

VCC

MCS

RRS

FRS

RSB

C

TAB

MS2

NC

NC

MM

SM1

RSB
GND
RS

mtl

MCS

load

CN255

CN253

CN256

CN254

MECHANISM

DRIVER

IC351 PA2020A

E

E

22

KEH-3930R,3900R

1

23

4

1234

D

C

B

A

4. PCB CONNECTION DIAGRAM

4.1 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

A

A

Capacitor

Connector

P.C.Board

Chip Part

SIDE A

SIDE B

TUNER AMP UNIT

C

CN1801

CORD ASSY

23

KEH-3930R,3900R

5

6

78

5

6

78

D

C

B

A

A

REAR PREOUT

L-CH

R-CH

ANTENNA JACK

SIDE A

CORD

CN251

D

B

24

KEH-3930R,3900R

1

23

4

1234

D

C

B

A

1
34

6

1

34

6

1

3

4
6

A

A

TUNER AMP UNIT

25

KEH-3930R,3900R

5

6

78

5

6

78

D

C

B

A

A

SIDE B

26

KEH-3930R,3900R

1

23

4

1234

D

C

B

A

4.2 FM/AM TUNER UNIT

SIDE A

FM/AM TUNER UNIT

A

B

B

27

KEH-3930R,3900R

1

2

34

1

2

34

D

C

B

A

SIDE B

FM/AM TUNER UNIT

B

B

28

KEH-3930R,3900R

1

23

4

1234

D

C

B

A

4.3 KEYBOARD UNIT

VOL +

VOL -

SOURCE

123456

EJECT

←

AUDIO

←

←

←

BAND

LOUD

C

C

SIDE A

KEYBOARD UNIT

TA PTY LOCAL/BSM

29

KEH-3930R,3900R

1

2

34

1

2

34

D

C

B

A

C

C

SIDE B

KEYBOARD UNIT

A

CN601

30

KEH-3930R,3900R

1

23

4

1234

D

C

B

A

IC,Q

IC251

Q351
Q352

ADJ
VR302

VR301

IC253

CN252

CN254

CN253

CN255

M1

M2

HEAD ASSY

CN256

21

22

DECK UNIT

CN602

4.4 CASSETTE MECHANISM MODULE

D

DECK UNIT

D

A

E

SIDE A

SIDE B

D

31

KEH-3930R,3900R

1

2

34

1

2

34

D

C

B

A

1

2

3

4

5

6

S3
70µs SW

S1

LOAD SW

S2

MODE SW

CN256

EGN1

REEL SENSE

REEL SENSE PCB

CN253

E

D

E

32

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 Part No.

--- ------ ------------------------------------------ -------------------------

Unit Number : CWM6806
Unit Name : Tuner Amp Unit

MISCELLANEOUS

IC 301 IC SN761029DL
IC 302 IC TDA7384
IC 601 IC PE5088A
IC 602 IC S-80834ANY
IC 701 IC PM4009A

IC 901 IC TPD1018F
Q 350 Transistor 2SC2412K
Q 351 Transistor DTC124EK
Q 352 Transistor 2SC2412K
Q 411 Transistor 2SC2412K

Q 412 Transistor 2SC2412K
Q 472 Transistor RN1610
Q 474 Transistor 2SD1757K
Q 475 Transistor 2SD1757K
Q 476 Transistor 2SC2412K

Q 477 Transistor DTA124EK
Q 650 Transistor 2SA1037K
Q 901 Transistor 2SC2412K
Q 902 Transistor 2SC2412K
Q 903 Transistor 2SD2037

Q 904 Transistor 2SD2396
Q 905 Transistor 2SB1243
Q 906 Transistor DTC114EK
Q 920 Transistor RN46A1
Q 951 Transistor 2SA1037K

D 350 Diode HZS9L(A2)
D 351 Diode 1SS270
D 352 Diode 1SS270
D 601 Diode 1SS270
D 602 Diode 1SS270

D 650 Diode 1SS270
D 651 Diode 1SS270
D 652 Diode 1SS270
D 653 Diode 1SS270
D 654 Diode 1SS270

D 655 Diode 1SS270
D 901 Diode HZS7L(C2)
D 902 Diode S5688G
D 903 Diode S5688G
D 904 Diode HZS7L(A1)

D 905 Diode S5688G
D 906 Diode HZS6L(B2)
D 907 Diode HZS9L(C1)
D 909 Diode S5688G
D 910 Diode S5688G

D 951 Diode 1SS270
D 952 Diode 1SS270
L 401 Ferri-Inductor LAU4R7K
L 402 Ferri-Inductor LAU2R2K
L 403 Inductor LAU100K

L 601 Ferri-Inductor LAU2R2K
L 602 Ferri-Inductor LAU2R2K
L 650 Ferri-Inductor LAU2R2K
L 703 Inductor LAU100K
L 704 Ferri-Inductor LAU101K

L 901 Coil 600µH CTH1219
L 951 Ferri-Inductor LAU2R2K
X 601 Ceramic Resonator 4.194MHz CSS1047
X 702 Crystal Resonator 3.648MHz CSS1447
AR 945 DSP-201M-S00B

RESISTORS

R 312 RS1/10S272J
R 313 RS1/10S272J
R 314 RS1/10S151J
R 315 RS1/10S151J
R 316 RS1/10S221J

R 317 RS1/10S221J
R 318 RD1/4PU104J
R 319 RD1/4PU104J
R 350 RD1/4PU223J
R 351 RD1/4PU152J

R 352 RD1/4PU103J
R 353 RD1/4PU153J
R 354 RD1/4PU221J
R 355 RD1/4PU101J
R 356 RD1/4PU152J

R 357 RD1/4PU103J
R 358 RD1/4PU223J
R 360 RD1/4PU103J
R 411 RS1/10S681J
R 412 RS1/10S681J

R 413 RS1/10S681J
R 414 RS1/10S103J
R 415 RS1/10S681J
R 416 RD1/4PU473J
R 417 RS1/10S472J

R 418 RS1/10S473J
R 419 RS1/10S473J
R 420 RS1/10S473J
R 421 RD1/4PU473J
R 422 RD1/4PU473J

R 423 RD1/4PU681J
R 424 RD1/4PU681J
R 425 RS1/10S393J
R 426 RS1/10S681J
R 427 RD1/4PU222J

R 428 RD1/4PU222J
R 430 RS1/10S474J
R 431 RS1/10S153J
R 440 RS1/10S681J
R 441 RD1/4PU102J

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

A

KEH-3930R,3900R

R 442 RS1/10S473J
R 443 RS1/10S681J
R 444 RD1/4PU472J
R 445 RD1/4PU473J
R 446 RD1/4PU224J

R 460 RS1/10S162J
R 461 RS1/10S162J
R 464 RS1/10S272J
R 465 RS1/10S272J
R 474 RD1/4PU222J

R 475 RD1/4PU223J
R 476 RD1/4PU223J
R 477 RD1/4PU222J
R 478 RD1/4PU224J
R 479 RD1/4PU224J

R 480 RS1/8S0R0J
R 499 RS1/8S0R0J
R 601 RD1/4PU124J
R 604 RS1/10S473J
R 610 RAB4C473J

R 612 RD1/4PU473J
R 615 RD1/4PU103J
R 616 RS1/10S473J
R 617 RAB4C102J
R 618 RD1/4PU102J

R 621 RD1/4PU102J
R 623 RD1/4PU102J
R 624 RD1/4PU102J
R 626 RS1/8S102J
R 627 RS1/10S102J

R 628 RS1/10S102J
R 629 RS1/10S681J
R 637 RD1/4PU103J
R 649 RD1/4PU222J
R 650 RD1/4PU472J

R 651 RD1/4PU222J
R 652 RD1/4PU472J
R 653 RD1/4PU222J
R 654 RD1/4PU473J
R 655 RD1/4PU752J

R 656 RD1/4PU223J
R 657 RD1/4PU222J
R 660 RS1/10S1R0J
R 713 RS1/10S225J
R 716 RD1/4PU102J

R 721 RD1/4PU102J
R 722 RD1/4PU102J
R 723 RD1/4PU102J
R 724 RD1/4PU681J
R 725 RS1/8S0R0J

R 726 RS1/8S0R0J
R 901 RD1/4PU473J
R 902 RD1/4PU223J
R 903 RD1/4PU223J
R 904 RD1/4PU473J

R 905 RD1/4PU102J
R 906 RD1/4PU473J
R 907 RD1/4PU473J
R 908 RD1/4PU472J
R 909 RD1/4PU103J

R 910 RD1/4PU101J
R 911 RD1/4PU122J
R 912 RD1/4PU103J
R 914 RD1/4PU102J
R 944 RD1/4PU152J

R 951 RD1/4PU153J
R 952 RD1/4PU472J
R 953 RD1/4PU473J
R 954 RD1/4PU102J
R 955 RD1/4PU473J

CAPACITORS

C 310 CEJA2R2M50
C 311 CEJA2R2M50
C 312 CEJA2R2M50
C 313 CEJA2R2M50
C 314 CEJA2R2M50

C 317 CEJA100M16
C 318 CEJA100M16
C 319 CKSQYB822K50
C 320 CKSQYB822K50
C 321 CEJA1R0M50

C 322 CEJA1R0M50
C 323 CKSQYB183K50
C 324 CKSQYB183K50
C 325 CKSQYB104K16
C 326 CKSQYB104K16

C 327 CKSQYB104K16
C 328 CKSQYB104K16
C 329 CEJA2R2M50
C 330 CEJA100M16
C 332 CKSQYB473K50

C 333 CEJA470M10
C 334 CKSQYB104K16
C 335 CKSQYB104K16
C 350 CEJA330M10
C 360 CKSQYB225K10

C 361 CEJA1R0M50
C 362 CKSYB225K16
C 363 CEJA100M16
C 364 CFTNA224J50
C 365 CFTNA224J50

C 366 CFTNA224J50
C 367 CFTNA224J50
C 368 CKSQYB104K16
C 399 3300µF/16V CCH1344
C 411 CKSQYB223K50

C 412 CKSQYB223K50
C 413 CKSQYB102K50
C 414 CEJA220M10
C 415 CKSQYB473K50
C 416 CEJA101M10

C 417 CKSQYB472K50
C 418 CKSQYB472K50
C 441 CKSQYB182K50
C 442 CKSQYB223K50
C 462 CKSQYB123K50

C 463 CKSQYB123K50
C 466 CEJA1R0M50
C 467 CEJA1R0M50
C 481 CCSQCH151J50
C 490 CKSQYB103K50

C 491 CKSQYB102K50
C 492 CCSQCH101J50
C 601 CKSQYB473K50
C 602 CEJA2R2M50
C 603 CKSQYB103K50

C 604 CCSQCH101J50
C 608 CEJA4R7M35
C 609 CEJA100M16
C 610 CEJA220M10
C 650 CKSQYB223K50

C 711 CEJA220M6R3
C 712 CKSQYB104K16
C 714 CKSQYB471K50
C 715 CKSQYB104K16
C 718 CKSQYB471K50

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

33

34

KEH-3930R,3900R

C 719 CEJA220M6R3
C 720 CKSQYB104K16
C 725 CCSQCH270J50
C 726 CCSQCH270J50
C 901 CEJA101M10

C 902 CKSQYB473K50
C 903 470µF/16V CCH1183
C 904 CKSQYB103K50
C 905 330µF/10V CCH1181
C 906 CKSQYB103K50

C 907 100µF/16V CCH1179
C 908 CKSQYB103K50
C 910 CKSQYB473K50

Unit Number : CWE1500
Unit Name : FM/AM Tuner Unit

MISCELLANEOUS

IC 1 IC PML002A
IC 2 IC PM4008A
IC 3 IC BR9010FV
Q 1 Transistor 2SC4081
Q 2 Transistor DTC124EU

Q 3 FET 3SK263
Q 51 Transistor 2SC4081
Q 201 FET 2SK932
Q 202 Transistor DTC124EU
Q 204 Transistor 2SC4081

D 1 Diode KV1410(23)
D 2 Diode 1SV248
D 4 Diode KV1410(23)
D 6 Diode KV1410(23)
D 101 Diode 1SS355

D 201 Diode DAN217U
D 202 Diode DAN217U
D 903 Diode KV1410(23)
D 904 Diode SVC253
L 1 Coil CTC1155

L 2 Coil CTC1155
L 3 Inductor LCTB100K2125
L 4 Coil CTC1155
L 201 Inductor LCTB330K1608
L 202 Inductor CTF1287

L 203 Inductor LCTA121J3225
L 901 Coil CTC1154
L 902 Inductor LCTA3R3J3225
L 904 Inductor LCTBR47K1608
L 905 Inductor LCTBR47K1608

T 51 Coil CTE1132
CF 51 Ceramic Filter CTF1442
CF 52 Ceramic Filter CTF1442
CF 53 Ceramic Filter CTF1442
CF 202 Ceramic Filter CTF1348

X 901 Crystal Resonator 10.250MHz CSS1432

RESISTORS

R 1 RS1/16S153J
R 2 RS1/16S103J
R 6 RS1/16S103J
R 7 RS1/16S273J
R 8 RS1/16S473J

R 9 RS1/16S223J
R 10 RS1/16S473J
R 11 RS1/16S221J
R 12 RS1/16S103J
R 13 RS1/16S104J

R 16 RS1/16S223J
R 17 RS1/16S221J
R 18 RS1/16S221J
R 19 RS1/16S473J
R 20 RS1/16S470J

R 51 RS1/16S470J
R 52 RS1/16S103J
R 53 RS1/16S103J
R 54 RS1/16S331J
R 55 RS1/16S331J

R 56 RS1/16S560J
R 57 RS1/16S560J
R 58 RS1/16S102J
R 59 RS1/16S225J
R 60 RS1/16S133J

R 61 RS1/16S433J
R 62 RS1/16S562J
R 101 RS1/16S333J
R 102 RS1/16S103J
R 103 RS1/16S333J

R 104 RS1/16S562J
R 106 RS1/16S0R0J
R 108 RS1/16S0R0J
R 110 RS1/16S154J
R 111 RS1/16S273J

R 112 RS1/16S223J
R 113 RS1/16S222J
R 114 RS1/16S333J
R 115 RS1/16S334J
R 116 RS1/16S473J

R 117 RS1/16S333J
R 118 RS1/16S223J
R 122 RS1/16S0R0J
R 202 RS1/16S472J
R 203 RS1/16S225J

R 204 RS1/16S102J
R 205 RS1/16S220J
R 206 RS1/16S471J
R 208 RS1/16S104J
R 209 RS1/16S104J

R 210 RS1/16S563J
R 213 RS1/16S223J
R 251 RS1/16S225J
R 902 RS1/16S103J
R 904 RS1/16S473J

R 907 RS1/16S103J
R 908 RS1/16S681J
R 909 RS1/16S473J
R 914 RS1/16S562J

CAPACITORS

C 1 CCSQCH5R0C50
C 2 CCSRCH5R0C50
C 4 CCSRCJ3R0C50
C 6 CKSQYB105K10
C 8 CKSRYB222K50

C 10 CCSRCH220J50
C 11 CCSRCH150J50
C 12 CCSRCH8R0D50
C 14 CCSRCJ3R0C50
C 15 CKSRYB103K50

C 16 CKSRYB222K50
C 17 CKSRYB222K50
C 18 CCSRCJ3R0C50
C 19 CKSRYB103K50
C 20 CKSRYB103K50

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

B

KEH-3930R,3900R

C 21 CKSRYB103K50
C 24 CKSQYB334K16
C 31 CKSRYB222K50
C 32 CCSRCH470J50
C 35 CKSRYB103K50

C 51 CKSRYB103K50
C 52 CKSRYB473K16
C 53 CCSRCK2R0C50
C 54 CKSRYB103K50
C 55 CKSRYB104K16

C 56 CKSRYB104K16
C 58 CKSQYB224K16
C 59 CKSRYB223K25
C 60 CKSRYB104K16
C 101 CEALNP100M10

C 102 CCSRCH151J50
C 103 CKSRYB473K16
C 105 CKSRYB682K25
C 106 CEAL2R2M50
C 107 CKSRYB103K50

C 108 CKSQYB474K16
C 109 CKSQYB474K16
C 110 CKSRYB104K16
C 111 CKSRYB104K16
C 112 CKSRYB104K16

C 113 CKSRYB123K25
C 114 CEAL220M6R3
C 115 CKSRYB473K16
C 116 CEAL2R2M50
C 117 CKSRYB102K50

C 120 CKSRYB153K25
C 121 CKSRYB332K50
C 122 CKSRYB682K25
C 123 CKSRYB681K50
C 125 CKSRYB103K50

C 126 CKSRYB103K50
C 127 CEAL2R2M50
C 128 CKSRYB103K50
C 201 CCSRCH471J50
C 202 CCSRCH100D50

C 203 CKSRYB104K16
C 204 CKSRYB332K50
C 205 CKSRYB103K50
C 206 CKSRYB104K16
C 207 CKSRYB473K16

C 208 CCSRCH560J50
C 209 CEAL470M6R3
C 210 CKSRYB103K50
C 211 CKSRYB103K50
C 212 CCSRCH101J50

C 215 CKSRYB223K25
C 216 CKSQYB334K16
C 217 CKSRYB103K50
C 219 CKSQYB105K10
C 220 CKSRYB104K16

C 221 CKSRYB473K16
C 222 CKSQYB334K16
C 223 CKSQYB474K16
C 224 CKSRYB104K16
C 225 CKSRYB272K50

C 226 CKSRYB682K25
C 902 CCSRCH270J50
C 904 CKSRYB223K25
C 905 CKSRYB103K50
C 906 CCSRTH100D50

C 907 CCSRTH150J50
C 909 CCSRTH100D50
C 910 CKSRYB332K50
C 912 CKSQYB474K16
C 913 CKSRYB223K25

C 914 CKSRYB682K25
C 915 CKSQYB223K25
C 916 CKSQYB474K16
C 917 CKSYB475K10
C 918 CKSRYB223K25

C 919 CKSQYB225K10
C 920 CCSRCH270J50
C 921 CCSRCH270J50
C 922 CKSYB105K16
C 923 CKSRYB103K50

Unit Number : CWM6813

(KEH-3930R/X1M/EW)

Unit Name : Keyboard Unit

MISCELLANEOUS

IC 1801 IC PD6293A
D 1801 Diode MA152WK
D 1802 Diode MA152WA
X 1801 Ceramic Resonator 4.97MHz CSS1422
IL 1801 Lamp 14V 40mA CEL1638

IL 1802 Lamp 14V 40mA CEL1638
IL 1803 Lamp 14V 40mA CEL1638
IL 1804 Lamp 14V 40mA CEL1638
LCD1801 LCD CAW1559

RESISTORS

R 1801 RS1/8S222J
R 1802 RS1/8S222J
R 1803 RS1/10S471J
R 1804 RS1/10S471J
R 1805 RS1/10S471J

R 1806 RS1/10S471J

CAPACITORS

C 1801 CKSQYB103K50

Unit Number : CWM6812

(KEH-3900R/X1M/EW)

Unit Name : Keyboard Unit

MISCELLANEOUS

IC 1801 IC PD6293A
D 1801 Diode MA152WK
D 1802 Diode MA152WA
X 1801 Ceramic Resonator 4.97MHz CSS1422
IL 1801 Lamp 14V 40mA CEL1547

IL 1802 Lamp 14V 40mA CEL1547
IL 1803 Lamp 14V 40mA CEL1547
IL 1804 Lamp 14V 40mA CEL1547
LCD1801 LCD CAW1559

RESISTORS

R 1801 RS1/8S222J
R 1802 RS1/8S222J
R 1803 RS1/10S471J
R 1804 RS1/10S471J
R 1805 RS1/10S471J

R 1806 RS1/10S471J

CAPACITORS

C 1801 CKSQYB103K50

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

35

C

C

36

KEH-3930R,3900R

Unit Number : EWM1023
Unit Name : Deck Unit

MISCELLANEOUS

IC 251 IC CXA2559Q
IC 351 IC PA2020A
D 352 Diode 1SS355

RESISTORS

R 255 RS1/16S221J
R 256 RS1/16S221J
R 257 RS1/16S102J
R 258 RS1/16S102J
R 271 RS1/16S102J

R 272 RS1/16S102J
R 273 RS1/16S102J
R 274 RS1/16S102J
R 281 RS1/8S0R0J
R 282 RS1/8S0R0J

R 283 RS1/8S0R0J
R 284 RS1/8S0R0J
R 285 RS1/16S0R0J
R 286 RS1/16S0R0J
R 287 RS1/8S0R0J

R 290 RS1/8S0R0J
R 301 RS1/16S183J
R 302 RS1/16S163J
R 303 RS1/16S163J
R 304 RS1/16S163J

R 305 RS1/16S163J
R 323 RS1/8S0R0J
R 351 RS1/16S102J
R 352 RS1/16S102J
R 353 RS1/16S102J

R 354 RS1/16S102J
R 355 RS1/10S274J
R 362 RS1/8S301J
R 373 RS1/8S0R0J
R 374 RS1/8S0R0J

R 401 RS1/16S472J
R 402 RS1/16S183J
R 403 RS1/16S823J

CAPACITORS

C 251 CKSRYB331K50
C 252 CKSRYB331K50
C 253 CKSRYB331K50
C 254 CKSRYB331K50
C 255 CKSRYB103K50

C 256 CKSRYB103K50
C 272 CKSRYB104K16
C 273 CEJA220M16
C 301 CKSRYB104K16
C 302 CKSRYB104K16

C 313 CCSRCH101J50
C 351 CKSYB224K25
C 352 CKSRYB392K50
C 353 CKSRYB103K50
C 354 CKSRYB103K50

C 355 CKSYB104K50
C 356 CKSRYB103K50
C 401 CKSQYB334K16
C 402 CKSRYB392K50
C 403 CKSRYB683K16

Unit Number :
Unit Name : REEL SENSE PCB

S 1 Switch(LOAD) ESG1007
S 2 Switch(MODE) ESG1007
EGN 1 Photo-reflector EGN1004

Miscellaneous Parts List

M 1 Motor Unit(MAIN) EXA1491
M 2 Motor Unit(SUB) EXA1580
HD 1 Head Assy EXA1592

Fuse(10A) CEK1136

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

E

D

6. ADJUSTMENT

There is no information to be shown in this chapter.

37

KEH-3930R,3900R

7. GENERAL INFORMATION

7.1. DISASSEMBLY

- 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.

-

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

Fig.2

Panel Unit

Tuner Amp Unit

Cassette Mechanism Module

38

KEH-3930R,3900R

7.2 PARTS

7.2.1 IC

- Pin Functions (PE5088A)

Pin No. Pin Name I/O Format Function and Operation

1,2 NC Not used

3 ADPW O C A/D converter power supply output
4 AVSS GND
5 swvdd O C Grille power supply control output
6 st I FM stereo input
7 AVREF1 Connected to 5V line
8 KYDT I Key data input

9 DPDT O C Display data output
10 SDBW I SDBW input
11 TUNPDI I PLL IC data input
12 TUNPDO O C PLL IC data output
13 TUNPCK O C PLL IC clock output
14 TUNPCE O C PLL IC chip enable output
15 currq O C Tuner voltage FIX output

16–18 NC Not used

19 RECIVE O C During RDS data reception output
20 PCE2 O C PLL IC chip enable output
21 fm/AM O C FM/AM power select output
22 VST O C Strobe pulse output for electronic volume
23 VCK O C Clock output for electronic volume
24 VDT O C Data output for electronic volume
25 LCDPW O C LCD back light power supply control output
26 ILMPW O C Illumination power supply control output
27 LOCH O C LOCH output
28 LOCL O C LOCL output
29 NC Not used
30 rimute O N RI output port
31 CM O C Cassette mechanism capstan motor control output
32 NR O N Dolby B NR output
33 VSS GND
34 SC2 O C Cassette mechanism sub motor control output
35 SC1 O C Cassette mechanism sub motor control output
36 MSIN I Cassette mechanism MS sense input

37-39 NC Not used

40 n/R O Tape direction forward / reverse output
41 PLAY O C Tape MS filter select output
42 loadsw I Tape loading input
43 POS I Cassette mechanism position sense input
44 RES I Cassette mechanism reverse end sense input
45 PEE O C Beep tone output
46 NES I Cassette mechanism forward end sense input
47 RDS57K I 57kHzBP-OUT sense input
48 STBY O C Stand-by output
49 NC Not used
50 drst O C Decoder reset output
51 tmute O C Tuner mute output
52 ANTPW O Antenna power output
53 SD I SD input
54 mute O C Mute output
55 SYSPW O C System power supply control output

56,57 NC Not used

58 rdslk I RDS LK signal input
59 RDT I RDS data input
60 reset I Reset input
61 ldet I PLL lock sense input

39

KEH-3930R,3900R

IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.

*PE5088A

Pin No. Pin Name I/O Format Function and Operation

62 rck I RDS clock input
63 dsens I Grille detach sense input
64 TELIN I Telephone mute input
65 asens I ACC power sense input
66 bsens I Back up power sense input
67 NC Not used
68 VDD VDD
69 X2 O Oscillator output
70 X1 I Oscillator input
71 GND Connect to GND
72 NC Not used
73 TESTIN I Test program mode input
74 AVDD A/D converter analog power supply (VDD)
75 AVREF0 I A/D converter standard voltage input
76 SL I Signal level input
77 MODELIN I Model select input
78 NL1 I Noise level 1 input
79 NL2 I Noise level 2 input
80 NC Not used

Format Meaning
C C MOS
N N Channel open drain

*PD6293A

20

21

40

41

1

60

80

61

33

32

48

49

17

16

64

1

40

KEH-3930R,3900R

- Pin Functions (PD6293A)

Pin No. Pin Name I/O Function and Operation

1-5 SEG4-0 O LCD segment output
6-9 COM3-0 O LCD common output

10 VLCD LCD drive power supply
11-14 KST3-0 O Key strobe output
15,16 KDT0,1 I Key data input (analogue input)

17 REM I Remote control reception

18 DPDT I Display data input

19 NC Not used

20 KYDT O Key data output

21 MODA GND

22 X0 Crystal oscillator connection pin

23 X1 Crystal oscillator connection pin

24 VSS GND
25,26 KDT2,3 I Key data input

27 NC Not used

28 KST4 O Key strobe output
29-32 NC Not used
33-55 SEG35-13 O LCD segment output

56 VDD Power supply
57-64 SEG12-5 O LCD segment output

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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

VCCAVcc

IN1-RIN1-L

IN2-RIN2-L

IN3-RIN3-L

IN4(+)-RIN4(+)-L

IN4(-)-RIN4(-)-L

AGNDAGND

SWout-RSWout-L

ZCin-RZCin-L

LOUD-RLOUD-L

VRin-RVRin-L

TREB-RTREB-L

BASS-C1-RBASS-C1-L

BASS-R-RBASS-R-L

BASS-C2-RBASS-C2-L

NCNC

TONEout-RTONEout-L

FADERin-RFADERin-L

FRNTout-RFRNTout-L

REARout-RREARout-L

DVccVREFin

DATAAGND

CLKDGND

STBCt

3 Line Serial Bus

Bass

Treble

Volume,

Loudness

Fader

Gain

Adjust

Isolator

Zero-cross

Detector

Power
Supply

Bass

Treble

Volume,

Loudness

Fader

Gain

Adjust

Isolator

Power
Supply

A

A

41

KEH-3930R,3900R

BR9010FV

NC

VCC

CS

SK

WC

GND

DO

DI

1

2

3

4

8

7

6

5

CS
SK
DI
DO
WC

: Chip select input
: Serial data clock input
: Serial data input
: Serial data output
: Write control input

PM4009A

S-80834ANY

1 2 31

OUT VDD VSS

42

KEH-3930R,3900R

COMMON

SEGMENT

7.2.2 DISPLAY

- CAW1559

43

KEH-3930R,3900R

8. OPERATIONS AND SPECIFICATIONS

8.1 OPERATIONS

5/∞/2/3

buttons

SOURCE/OFF button

+/– button

AUDIO button

Detach button

Buttons 1–6

Cassette door

EJECT button

LOCAL/BSM button

PTY button

TA/AF button

BAND button

DISP button

44

KEH-3930R,3900R

Basic Operation

To Listen to Music

The following explains the initial operations required before you can listen to music.

Note:

• Loading a cassette in this product.

1. Select the desired source (e.g. Tuner).

Each press of the SOURCE/OFF button selects the desired source in the following order:

Tape = Tuner

Note:

• 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.

2. Raise or lower the volume.

3. Turn the source OFF.

Hold for 1 second

Each press changes the Source ...

Basic Operation of Tuner

Manual and Seek Tuning

• You can select the tuning method by changing the length

of time you press the 2/3 button.

Manual Tuning (step by step) 0.5 seconds or less

Seek Tuning 0.5 seconds or more

Note:

• 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.

Preset Tuning

• You can memorize broadcast stations in buttons

1 through 6 for easy, one-touch station recall.

Preset station recall 2 seconds or less

Broadcast station preset memory 2 seconds or more

Note:

• 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.

Preset Number Indicator

Band

F1 (FM1) = F2 (FM2)

= MW/LW

Band Indicator

Frequency Indicator

This product’s AF function can be switched ON and OFF. AF should be switched OFF

for normal tuning operations.

45

KEH-3930R,3900R

Basic Operation

Basic Operation of Cassette Player

Direction ChangeDirection Indicator

Eject

Note:

• The Tape function can be turned ON/OFF with

the cassette tape remaining in this product.

Fast Forward/Rewind and Music Search

• Each press of the 3 button selects Fast Forward or Forward-Music

Search.

FF (Fast Forward) = F-MS (Forward-Music Search) = Normal Playback

• Each press of the 2 button selects Rewind or Rewind-Music Search.

REW (Rewind) = R-MS (Rewind-Music Search) = Normal Playback

Note:

• Fast Forward/Rewind and Music Search can be canceled by pressing the BAND button.

Cassette Loading Slot

Audio Adjustment

Entering the Audio Menu

With this Menu, you can adjust the sound quality.

Note:

• After entering the Audio Menu, if you do not perform an operation within about 30 seconds, the

Audio Menu is automatically canceled.

1. Select the desired mode in the Audio Menu.

2. Operate a mode.

3. Cancel the Audio Menu.

Each press changes the Mode ...

46

KEH-3930R,3900R

Audio Adjustment

Audio Menu Functions

The Audio Menu features the following functions.

Balance Adjustment (FAD)

This function allows you to select a Fader/Balance setting that provides ideal listening

conditions in all occupied seats.

1. Press the AUDIO button and select the Fader/Balance mode (FAD) in the

Audio Menu.

Note:

• “FAD 0” is the proper setting when 2 speakers are in use.

Bass Adjustment (BAS)

You can adjust a Bass level as desired.

1. Press the AUDIO button and select the Bass mode (BAS) in the Audio Menu.

2. Boost or attenuate the bass

level with the 5/∞ buttons.

The display shows “+6” – “–6”

3. Adjust left/right speaker bal-

ance with the 2/3 buttons.

“BAL L9” – “BAL R9” is displayed

as it moves from left to right.

2. Adjust front/rear speaker bal-

ance with the 5/∞ buttons.

“FAD F15” – “FAD R15” is dis-

played as it moves from front to

rear.

Treble Adjustment (TRE)

You can adjust a Treble level as desired.

1. Press the AUDIO button and select the Treble mode (TRE) in the Audio

Menu.

Loudness Adjustment (LOUD)

The Loudness function compensates for deficiencies in the low and high sound ranges at

low volume.

1. Press the AUDIO button and select the Loudness mode (LOUD) in the Audio

Menu.

“LOUD”

2. Switch the Loudness function

ON/OFF with the 5/∞ but-

tons.

2. Boost or attenuate the treble

level with the 5/∞ buttons.

The display shows “+6” – “–6”

47

KEH-3930R,3900R

+

≠

+

≠

15.Front

16.Rear

+

≠

+

≠

1. This Product

2. Antenna jack

6. To terminal always supplied with

power regardless of ignition switch

position.

4. To electric terminal controlled by

ignition switch (12 V DC) ON/OFF.

11. Blue/white

8. To vehicle (metal) body.

7. Black (ground)

3. Red

5. Yellow

10.Fuse

17.White

18.White/black

19.Gray

20.Gray/black

21.Green

22.Green/black

23.Violet

24.Violet/black

14.Right speaker

13.Left speaker

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.

15.Front

16.Rear

12.To system control terminal of

the power amp or Auto-antenna

relay control terminal.

(Max. 300 mA 12 V DC.)

25.With a 2 speaker system, do not connect

anything to the speaker leads that are not

connected to speakers.

KEH-3930R,3900R

8.2 SPECIFICATIONS

General

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

Amplifier

Maximum power output ...................................... 40 W ×4

Continuous power output .................................... 22 W × 4

(DIN45324, +B = 14.4 V)

Load impedance .......................... 4 Ω (4 – 8 Ωallowable)

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)

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)

FM tuner

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)

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)

Note:

• Specifications and the design are subject to possi­ble modification without notice due to improve­ments.