Pioneer KEH-1900 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-ZZY. NOV. 1999 Printed in Japan

ORDER NO.

CRT2424

HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER

KEH-1900 X1M/UC

Service

Manual

CONTENTS

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

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

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ....8

4. PCB CONNECTION DIAGRAM................................18

5. ELECTRICAL PARTS LIST........................................26

6. ADJUSTMENT.........................................................30

7. GENERAL INFORMATION.......................................32

7.1 DISASSEMBLY ..................................................32

7.2 PARTS ................................................................33

7.2.1 IC...............................................................33

7.2.2 DISPLAY ...................................................36

8. OPERATIONS AND SPECIFICATIONS....................37

KEH-1950 X1M/ES

KEH-1900/X1M/UC

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

Model No. Order No. Mech. Module Remarks

CX-644 CRT1800 2M Cassette Mech. Module:Circuit Description, Mech.Description, Disassembly

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KEH-1900,1950

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

1. SAFETY INFORMATION

CAUTION

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.

WARNING

This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of

California to cause cancer, birth defects or other reproductive harm.

Health & Safety Code Section 25249.6 - Proposition 65

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KEH-1900,1950

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.

-PACKING SECTION PARTS LIST

Part.No

Mark No. Description KEH-1900/X1M/UC KEH-1950/X1M/ES

* 1 Accessory Assy CEA2350 CEA2350

2 Spring CBH1650 CBH1650

3 Screw Assy CEA2351 CEA2351

4 Screw CBA1304 CBA1304

* 5 Polyethylene Bag CEG-127 CEG-127

6 Screw CRZ50P090FMC CRZ50P090FMC

7 Screw TRZ50P080FMC TRZ50P080FMC

* 8 Polyethylene Bag CEG-158 CEG-158

9 Handle CNC5395 CNC5395

10 Bush CNV3930 CNV3930

11 Polyethylene Bag CEG1173 CEG-162

12 Carton CHG3913 CHG3914

13 Contain Box CHL3913 CHL3914

14 Protector CHP1622 CHP1622

15 Protector CHP1623 CHP1623

16 Owner’s Manual CRD3099 CRD3097

17 Installation Manual CRD3100 CRD3098

18 Case Assy CXB3520 CXB3520

19 Cord Assy CDE6145 CDE6145

* 20 Card ARY1048 Not used

-Owner's Manual

Model Part No. Language

KEH-1900/X1M/UC CRD3099 English, French, Spanish

KEH-1950/X1M/ES CRD3097 English, Spanish, Portuguese(B), Chinese, Arabic

-Installation Manual

Model Part No. Language

KEH-1900/X1M/UC CRD3100 English, French, Spanish

KEH-1950/X1M/ES CRD3098 English, Spanish, Portuguese(B), Chinese, Arabic

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KEH-1900,1950

2.2 EXTERIOR

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KEH-1900,1950

(1) EXTERIOR SECTION PARTS LIST

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

1 Screw BSZ26P050FMC

2 Screw BSZ30P055FUC

3 Screw BSZ30P060FMC

4 Screw BSZ30P100FMC

5 Cord Assy CDE6145

6 Case CNB2481

7 Holder CNC5704

8 Insulator CNM5025

9 Cushion CNM5210

10 Panel CNS5214

11 Tuner Amp Unit See Contrast table(2)

12 Screw BPZ26P080FMC

13 Screw BSZ26P080FMC

14 Screw BSZ26P140FMC

15 FM/AM Tuner Unit See Contrast table(2)

16 Holder CNC6554

17 Pin Jack(CN401) CKB1028

18 Plug(CN603) CKM1270

19 Connector(CN601) CKS3362

20 Connector(CN602) CKS3581

21 Antenna Jack(CN301) CKX1056

22 Panel CNB2247

23 Holder CNC5399

24 Holder CNC6216

25 Heat Sink CNC6217

26 Holder CNC6531

27 Holder CNC6845

28 Chassis Unit CXA9851

29 Holder Unit CXB2687

30 Detach Grille Assy See Contrast table(2)

31 Screw BPZ20P120FZK

32 Button(EJECT) CAC5870

33 Button(REW) CAC5872

34 Button(FF) CAC5874

35 Button(CROSS) CAC6295

36 Button(TUNER/BAND) CAC6297

37 Button(1-6) CAC6300

38 Button(DETACH) CAC6301

39 Spring CBH1836

40 Spring CBH2307

41 Cover CNS5696

42 Keyboard Unit CWM6745

43 LCD(LCD901) CAW1568

44 Connector(CN901) CKS3580

45 Holder CNC8525

46 Sheet CNM6486

47 Lighting Conductor CNV5969

48 Rubber CNV5970

49 Connector CNV5972

50 Grille Unit See Contrast table(2)

51 Button CAC4836

52 Spring CBH1834

53 Spring CBH1835

54 Spring CBH2367

55 Bracket CNC6135

56 Bracket CNC6791

57 Arm CNV4692

58 Arm CNV4693

59 Arm CNV4728

60 Panel Unit CXB4926

61 Door CAT2109

62 Spring CBH1838

63 Screw IMS20P030FZK

64 Fuse(10A) CEK1136

65 Cassette Mechanism Assy EXK3410

66 IC(IC501) TDA7384

67 Transistor(Q804) 2SD2395

* 68 Cord See Contrast table(2)

69 Holder See Contrast table(2)

(2) CONTRAST TABLE

KEH-1900/X1M/UC and KEH-1950/X1M/ES are constructed the same except for the following:

Part No.

Mark No. Description KEH-1900/X1M/UC KEH-1950/X1M/ES

11 Tuner Amp Unit CWM6742 CWM6744

15 FM/AM Tuner Unit CWE1467 CWE1486

30 Detach Grille Assy CXB4673 CXB4674

50 Grille Unit CXB4633 CXB4634

* 68 Cord CDC1043 Not used

69 Holder CNC8818 Not used

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2.3 CASSETTE MECHANISM ASSY

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KEH-1900,1950

1 Screw BSZ23P050FMC

2 Washer CBG1003

3 Connector(CN1) CKS2829

4 Screw(M2x5) EBA1038

5 Screw(M2x2.5) EBA1037

6 Spring EBH1554

7 Spring EBH1555

8 Spring EBH1556

9 Spring EBH1603

10 Spring EBH1591

11 Spring EBH1559

12 Spring EBH1593

13 Spring EBH1561

14 Spring EBH1562

15 Spring EBH1563

16 Spring EBH1623

17 Spring EBH1565

18 Spring EBH1566

19 Spring EBH1567

20 Spring EBH1568

21 Spring EBH1569

22 Spring EBH1571

23 Spring EBH1579

24 Head Base ENC1475

25 Lever ENC1429

26 Lever ENC1430

27 Lever ENC1431

28 Lever ENC1432

29 Arm ENC1433

30 Arm ENC1434

31 Arm ENC1480

32 Arm ENC1493

33 Bracket ENC1477

34 Lever ENC1483

35 Arm ENC1524

36 Frame ENC1440

37 Holder ENC1441

38 Lever ENC1446

39 Lever ENC1478

40 Belt ENT1027

41 Gear ENV1504

42 Gear ENV1470

43 Gear ENV1471

44 Lever ENV1472

45 Gear ENV1510

46 Gear ENV1475

47 Gear ENV1512

48 Gear ENV1513

49 Gear ENV1502

50 Lever ENV1480

51 Lever ENV1487

52 •••••

53 Arm ENV1519

* 54 PCB ENP1161

55 •••••

56 Switch(FWD)(REV)(S3) ESH1006

57 Switch(Load)(S1) ESN1016

58 Switch(Mute)(S2) ESN1017

59 Head Assy(HD1) EXA1466

60 Motor Unit(M1) EXA1467

61 Flywheel Unit EXA1547

62 •••••

63 Arm Unit EXA1447

64 Arm Unit EXA1448

65 Arm Unit EXA1534

66 Reel Unit EXA1450

67 Pinch Holder ENV1466

68 Pinch Roller ENV1518

69 Pinch Holder ENV1467

70 •••••

71 Chassis Unit EXA1498

72 Arm ENV1524

73 Washer HBF-167

74-78 •••••

79 Cover ENC1452

80 Washer CBF1051

81 Spring EBH1592

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

-CASSETTE MECHANISM ASSY SECTION PARTS LIST

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KEY MATRIX

HEAD

MOTOR

FWD

Lch

REV

Lch

FWD-L

REV-L

Q808

Q806

Q807

Q805

FM SWITCH AM SWITCH

FM AM

FIX+B

VCO

AMIF

Q303

Q302

LOOP FILTER

313 654 51

X601

4.5MHz

25 24

AMIF

VCOIN

FMSD

SYSTEM CONTROLLER

IC 601 (1/2)

PE5107A

FMSD

Q804

9V REGULATOR

FIX+B

Q803

Q802 B.U

SYSPW

ILL+B

IL901-903

OSC

Q201 Q202

FMTV

OSC

AMIFC

VCO

FM+B AM+B TUN+B

FMSD

19 20 15 17 21 14 13 6

41 9 10 14 15 17 19 47 1 2

252318

3238

FM RF T31

FM/AM MIX Q31 CF51

FM/AM IF CF52

FM IF CF53

FM IF T51

FMSL

AMSL

AMTV

AMRF/AGC CF232 AM IF

FM/AM PROCESSOR

IC 1 PA4023B FM PROCESSOR

IC 2 PA4024A

TUN-L

FIX+B

KEYBO

FM/AM TUNER UNIT

TUNER AMP UNIT

CN301

ANT

KEH-1900,1950

1234

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

-KEH-1900/X1M/UC

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KEH-1900,1950

5678

IC 501

TDA7384

FL+

FL-

RL+

RL-

MUTE

STBY

POWER AMP 9

FL+

FL-

RL+

RL-

SYSPW

Q501

Q609

Q502

Q607

MUTE

Q608

DMINH

Q606

FUSE

10A

B.U

ACC

VDD1

VDD2

VDD

Q603

Q604

Q605

Q801

IC 801

TPD1018F

B REMOTE

BRE

CN603

SYSPW 6

B.U

SYSPW

437

4039

DMINH

MUTE

IC 401

SN761029DL

ELECTRONIC

VOLUME

VDT/VCK/VST

IC 201

LA3161P

CASSETTE

EQUALIZER

B.U

FIX+B

MUTE

Q601

TAPLD

NOR/REV

MCMUT

LOAD

B.U

MECPW

Q809

Q810

MECPW

MECHA

POWER SWITCH

MECHA MUTE

MUTE

Q403

RL OUT RL

Q602

SWVDD

VDD

SWVDD

10 LCK

LDT

CN602

ILL+B

SW5V

SCK

SIO

IC 901

PDC045A

KEY/LCD

DRIVER

RES

SCK

VDD

MATRIX

LCD 901

CAW1568

CN901

SYSTEM CONTROLLER

IC 601 (2/2)

PE5107A

MUTE SWITCH

LOAD SWITCH

FWD/REV

FWD/REV SWITCH

GND

CN601

FWD-L

REV-L

ILL+B

Q401

TUN-L

SPEAKER

ACC

BATTERY

B REMOTE

DCASSETTE PCB

EYBOARD UNIT

CN401

REAR Lch OUT

FL+

FL-

RL+

RL-

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KEH-1900,1950

1234

A-a A-b

A-b

A-a

Large size

SCH diagram

Guide page

Detailed page

ES ONLY

UC ONLY ES ONLY

UC ONLY

ES ONLY

R313 10K 22K

C313 R022 R047

C314 R01 R001

UC ES

***

SYSTEM CONTROLLER

EQ AMP

ELECTRONIC VOLU

TUNER AMP UNIT

FM/AM TUNER UNIT

CASSETTE PCB

-73dBs

-29.0dB

AM : -26.0dBs

FM : -20.0dBs

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

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