Pioneer KEH-3950 Bedienungsanleitung

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.

CRT2421

HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER

KEH-3950 X1M/ES

Service

Manual

CONTENTS

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

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

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...10

4. PCB CONNECTION DIAGRAM ................................26

5. ELECTRICAL PARTS LIST ........................................36

6. ADJUSTMENT..........................................................43

7. GENERAL INFORMATION .......................................44

7.1 DISASSEMBLY ...................................................44

7.2 PARTS .................................................................45

7.2.1 IC................................................................45

7.2.2 DISPLAY....................................................49

8. OPERATIONS AND SPECIFICATIONS.....................50

KEH-3950/X1M/ES

-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-3910 X1M/EE

HIGH POWER CASSETTE PLAYER WITH FM/MW/LW TUNER

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.

KEH-3950,3910

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(KEH-3950/X1M/ES)

1-1 Owner’s Manual CRD3119

1-2 Installation Manual CRD3121

1-3 Polyethylene Bag CEG1116

2 Cord Assy CDE6222

3 Spring CBH1650

4 Screw Assy CEA2351

5 Screw CBA1304

* 6 Polyethylene Bag CEG-127

7 Screw CRZ50P090FMC

8 Screw TRZ50P080FMC

* 9 Polyethylene Bag CEG-158

10 Handle CNC5395

11 Bush CNV3930

12 Polyethylene Bag CEG-162

13 Carton CHG3846

14 Contain Box CHL3846

15 Protector CHP2243

16 Protector CHP2244

17 Case Assy CXB3520

-PACKING SECTION PARTS LIST

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

KEH-3950,3910

-Owner's Manual, Installation Manual

Model Part No. Language

KEH-3950/X1M/ES CRD3119 English, Spanish, Portuguese(B),

CRD3121 Chinese, Arabic

-Owner's Manual, Installation Manual

Model Part No. Language

KEH-3910/X1M/EE CRD3125 English, Russian

CRD3126

2.2 PACKING(KEH-3910/X1M/EE)

1 Cord Assy CDE6222

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 CHG3847

9 Contain Box CHL3847

10 Protector CHP2243

11 Protector CHP2244

12-1 Owner’s Manual CRD3125

12-2 Installation Manual CRD3126

12-3 Polyethylene Bag CEG1116

13 Case Assy CXB3520

-PACKING SECTION PARTS LIST

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

KEH-3950,3910

2.3 EXTERIOR(KEH-3950/X1M/ES)

KEH-3950,3910

1 Screw BSZ26P050FMC

2 Screw BSZ30P050FMC

3 Screw BSZ30P200FMC

4 Cord Assy CDE6222

5 •••••

6 Case CNB2350

7 Earth Plate CNC8368

8 Spacer CNM4913

9 Insulator CNM5963

10 Tuner Amp Unit CWM6810

11 Screw BSZ26P080FMC

12 Screw BSZ26P160FMC

13 •••••

14 FM/AM Tuner Unit CWE1501

15 Holder CNC7532

16 Plug(CN603) CKM1270

17 Connector(CN602) CKS3568

18 Connector(CN601) CKS3581

19 Antenna Jack(CN402) CKX1056

20 Panel CNB2514

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 CXB3012

30 Detach Grille Assy CXB4854

31 Screw BPZ20P100FZK

32 Button(DETACH) CAC5789

33 Button(1-6) CAC6275

34 Button(EJECT) CAC6277

35 Button(+ -) CAC6273

36 Button(SELECT) CAC6276

37 Button(SOURCE/LOUD) CAC6495

38 Spring CBH2210

39 Cover CNS5661

40 Keyboard Unit CWM6814

41 LCD(LCD1801) CAW1560

42 Connector(CN1801) CKS3580

43 Holder CNC8517

44 Rubber CNV5954

45 Lighting Conductor CNV6274

46 Rubber CNV5968

47 Grille Unit CXB4523

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 CXB4927

58 Door CAT2109

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

66 Pin Jack(CN301) CKB1028

67 Screw BPZ26P080FMC

68 Panel CNS5132

-EXTERIOR SECTION PARTS LIST

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

KEH-3950,3910

2.4 EXTERIOR(KEH-3910/X1M/EE)

KEH-3950,3910

1 Screw BSZ26P050FMC

2 Screw BSZ30P050FMC

3 Screw BSZ30P200FMC

4 Cord Assy CDE6222

5 •••••

6 Case CNB2350

7 Earth Plate CNC8368

8 Spacer CNM4913

9 Insulator CNM5963

10 Tuner Amp Unit CWM6808

11 Screw BSZ26P080FMC

12 Screw BSZ26P160FMC

13 Cord CDE6158

14 FM/AM Tuner Unit CWE1504

15 Holder CNC7532

16 Plug(CN603) CKM1270

17 Connector(CN602) CKS3568

18 Connector(CN601) CKS3581

19 Antenna Jack(CN402) CKX1056

20 Panel CNB2345

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 CXB3012

30 Detach Grille Assy CXB4852

31 Screw BPZ20P100FZK

32 Button(DETACH) CAC5789

33 Button(1-6) CAC6275

34 Button(EJECT) CAC6277

35 Button(+ -) CAC6273

36 Button(SELECT) CAC6276

37 Button(SOURCE/LOUD) CAC6495

38 Spring CBH2210

39 Cover CNS5661

40 Keyboard Unit CWM6814

41 LCD(LCD1801) CAW1560

42 Connector(CN1801) CKS3580

43 Holder CNC8517

44 Rubber CNV5954

45 Lighting Conductor CNV5955

46 Rubber CNV5968

47 Grille Unit CXB4521

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 CXB4928

58 Door CAT2109

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

-EXTERIOR SECTION PARTS LIST

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

KEH-3950,3910

2.5 CASSETTE MECHANISM MODULE

KEH-3950,3910

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

KEH-3950,3910

1234

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM(KEH-3950/X1M/ES)

TUNER Lch

B.U VDD

Q903

SYSPW

VDD

AVDD

55 74 68

SYSTEM

CONTROLLER

PE5089A

IC601(1/2)

TUN-L

ELECTRONIC VOLUME

SN761029DL

IC301 20

TAPE-L

Q353

Q346

MUTE

POWER AMP

TDA7384

IC302

MUTE STBY

FL+

FL-

RL+

RL-

22 4

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

66 65

MUTE

RESET

BSENS

ASENS

SWVDD

DPDT

KYDT

DSENS

RIMUTE

STBY

LOADSW

SYSTEM

CONTROLLER

IC601(2/2)

PE5089A

X601

Q906

BSENS

ASENS ACC

FUSE

10A

B.U

STBY

B.U

MUTE

LOAD 42

63 895

Q650

SWVDD

VDD

SW5V

ILL

KYDT

DPDT

SW5V

VDD SWITCH

ATUNER AMP UNIT

DDECK UNIT

CKEYBOARD UNIT

734 5

LCD DRIVER

IC1801

PD6293A

DPDT

KYDT

VDD

VLCD

X901

50 10

22 23

IC251

CXA2559Q

IC351

PA2020A

EQ AMP

MECHANISM

DRIVER

CN251

CN252

CN254

CN255

CN253

5TAPE+B

Lch

FWD

L-ch

REV

L-ch

18 19

315 6

8710

CN256 315 6

LOAD

MODE

EGN1

REEL

SENSE

SUB

MOTOR

MAIN

MOTOR

EREEL SENSE PCB

CN602

CN301

CN603

CN601

CN1801

VCK/VDT/VST

ACC

BACK UP

FL+

FL-

RL-

RL+

B.REMOTE

VCC

LOUT

RIMUTE

STBY

KEY MATRIX

LCD

ANT1 TV

ANT2 TV

RF TV

IC 3

BR9010FV

AM 2ND IF 450kHz

ANTENNA

JACK

CN401

BFM/AM TUNER UNIT

FM FRONT END

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

LDET

COMP

34 33 41 44 11 12 13

75746157554533

2225 10 14 12 15 16 8 13 2 3 4

CF202

VDD

LOCL

VCC

Q411

VCC VDD

DI/DO

CE2

CE1

SDBL

FMSD

PCE2

TUNPCK

TUNPCE

PDIO

NL1

NL2

EEPROM

IC 2 PM4008A

FM MPX

25 24

Q202

TUNPCE

TUNPCK

PCE2

TUNPDO

LOCL

28 TUNPDI

PDIO

POWER SWITCH

6IC901

TPD1018F

SYSPW

DSENS

REAR PREOUT

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