Pioneer KEH-1940 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.

CRT2425

HIGH POWER CASSETTE PLAYER WITH FM/MW/LW TUNER

KEH-1940 X1M/EW

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................................20

5. ELECTRICAL PARTS LIST........................................28

6. ADJUSTMENT.........................................................32

7. GENERAL INFORMATION.......................................34

7.1 DISASSEMBLY ..................................................34

7.2 PARTS ................................................................35

7.2.1 IC...............................................................35

7.2.2 DISPLAY ...................................................38

8. OPERATIONS AND SPECIFICATIONS....................39

KEH-1960 X1M/EW

KEH-1940/X1M/EW

-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

KEH-1940,1960

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

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.

KEH-1940,1960

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-1940/X1M/EW KEH-1960/X1M/EW

1 Accessory Assy CEA1917 CEA1917

2 Screw CBA1304 CBA1304

3 Handle CNC5395 CNC5395

4 Bush CNV3930 CNV3930

* 5 Polyethylene Bag E36-615 E36-615

6 Polyethylene Bag CEG-162 CEG-162

7 Carton CHG3911 CHG3912

8 Contain Box CHL3911 CHG3912

9 Protector CHP1622 CHP1622

10 Protector CHP1623 CHP1623

11 Owner’s Manual CRD3094 CRD3094

12 Installation Manual CRD3096 CRD3096

* 13 Passport CRY1013 CRY1013

* 14 Warranty Card CRY1157 CRY1157

15 Case Assy CXB3520 CXB3520

16 Cord Assy CDE6212 CDE6212

-Owner's Manual

Model Part No. Language

KEH-1940/X1M/EW CRD3094 English, Spanish, German, French, Italian, Dutch

KEH-1960/X1M/EW

-Installation Manual

Model Part No. Language

KEH-1940/X1M/EW CRD3096 English, Spanish, German, French, Italian, Dutch

KEH-1960/X1M/EW

KEH-1940,1960

2.2 EXTERIOR

KEH-1940,1960

(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 CDE6212

6 Cap CKX-003

7 Case CNB2481

8 Holder CNC5704

9 Insulator CNM5025

10 Cushion CNM5210

11 Tuner Amp Unit CWM6740

12 Screw BSZ26P080FMC

13 Screw BSZ26P140FMC

14 FM/AM Tuner Unit CWE1466

15 Holder CNC6554

16 Plug(CN603) CKM1270

17 Connector(CN601) CKS3362

18 Connector(CN602) CKS3581

19 Antenna Jack(CN301) CKX1056

20 Panel CNB2246

21 Holder CNC5399

22 Holder CNC6216

23 Heat Sink CNC6217

24 Holder CNC6845

25 Holder Unit CXB2687

26 Chassis Unit See Contrast table(2)

27 Detach Grille Assy See Contrast table(2)

28 Screw BPZ20P120FZK

29 Button(EJECT) See Contrast table(2)

30 Button(REW) See Contrast table(2)

31 Button(FF) See Contrast table(2)

32 Button(CROSS) See Contrast table(2)

33 Button(TUNER/BAND) See Contrast table(2)

34 Button(1-6) CAC6300

35 Button(DETACH) See Contrast table(2)

36 Spring CBH1836

37 Spring CBH2307

38 Cover See Contrast table(2)

39 Keyboard Unit See Contrast table(2)

40 LCD(LCD901) CAW1568

41 Connector(CN901) CKS3580

42 Holder CNC8525

43 Sheet CNM6486

44 Lighting Conductor CNV5969

45 Rubber CNV5970

46 Connector CNV5972

47 Grille Unit See Contrast table(2)

48 Button CAC4836

49 Spring CBH1834

50 Spring CBH1835

51 Spring CBH2367

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 Panel See Contrast table(2)

61 Screw IMS20P030FZK

62 Fuse(10A) CEK1136

63 Cassette Mechanism Assy EXK3410

64 IC(IC501) TDA7384

65 Transistor(Q804) 2SD2395

KEH-1940,1960

(2) CONTRAST TABLE

KEH-1940/X1M/EW and KEH-1960/X1M/EW are constructed the same except for the following:

Part No.

Mark No. Description KEH-1940/X1M/EW KEH-1960/X1M/EW

26 Chassis Unit CXB4636 CXB4637

27 Detach Grille Assy CXB4671 CXB4672

29 Button(EJECT) CAC5870 CAC5871

30 Button(REW) CAC5872 CAC5873

31 Button(FF) CAC5874 CAC5875

32 Button(CROSS) CAC6295 CAC6296

33 Button(TUNER/BAND) CAC6297 CAC6298

35 Button(DETACH) CAC6301 CAC6302

38 Cover CNS5696 CNS5697

39 Keyboard Unit CWM6745 CWM6746

47 Grille Unit CXB4631 CXB4632

57 Panel Unit CXB4924 CXB4925

58 Door CAT2109 CAT2108

60 Panel CNS5211 CNS5212

KEH-1940,1960

2.3 CASSETTE MECHANISM ASSY

KEH-1940,1960

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

KEY MATRIX

FWD

GND

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

KEYBOAR

FM/AM TUNER UNIT

TUNER AMP UNIT

CN301

ANT

Q304

KEH-1940,1960

1234

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

Dieses Handbuch passt für folgende Modelle

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