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Service KEH-1940/X1M/EW
Manual ORDER NO.
CRT2425
HIGH POWER CASSETTE PLAYER WITH FM/MW/LW TUNER
KEH-1940
KEH-1960 X1M/EW
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
CONTENTS
1. SAFETY INFORMATION............................................2 7. GENERAL INFORMATION.......................................34
2. EXPLODED VIEWS AND PARTS LIST ......................2 7.1 DISASSEMBLY ..................................................34
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..10 7.2 PARTS ................................................................35
4. PCB CONNECTION DIAGRAM................................20 7.2.1 IC ...............................................................35
5. ELECTRICAL PARTS LIST........................................28 7.2.2 DISPLAY ...................................................38
6. ADJUSTMENT .........................................................32 8. OPERATIONS AND SPECIFICATIONS ....................39
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
KEH-1940,1960
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
14
13
12
11
1
7
3 2
4
5
9 15
16
10
6
8
2
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
3
KEH-1940,1960
2.2 EXTERIOR
4
KEH-1940,1960
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
1 Screw BSZ26P050FMC 36 Spring CBH1836
2 Screw BSZ30P055FUC 37 Spring CBH2307
3 Screw BSZ30P060FMC 38 Cover See Contrast table(2)
4 Screw BSZ30P100FMC 39 Keyboard Unit See Contrast table(2)
5 Cord Assy CDE6212 40 LCD(LCD901) CAW1568
6 Cap CKX-003 41 Connector(CN901) CKS3580
7 Case CNB2481 42 Holder CNC8525
8 Holder CNC5704 43 Sheet CNM6486
9 Insulator CNM5025 44 Lighting Conductor CNV5969
10 Cushion CNM5210 45 Rubber CNV5970
11 Tuner Amp Unit CWM6740 46 Connector CNV5972
12 Screw BSZ26P080FMC 47 Grille Unit See Contrast table(2)
13 Screw BSZ26P140FMC 48 Button CAC4836
14 FM/AM Tuner Unit CWE1466 49 Spring CBH1834
15 Holder CNC6554 50 Spring CBH1835
16 Plug(CN603) CKM1270 51 Spring CBH2367
17 Connector(CN601) CKS3362 52 Bracket CNC6135
18 Connector(CN602) CKS3581 53 Bracket CNC6791
19 Antenna Jack(CN301) CKX1056 54 Arm CNV4692
20 Panel CNB2246 55 Arm CNV4693
21 Holder CNC5399 56 Arm CNV4728
22 Holder CNC6216 57 Panel Unit See Contrast table(2)
23 Heat Sink CNC6217 58 Door See Contrast table(2)
24 Holder CNC6845 59 Spring CBH1838
25 Holder Unit CXB2687 60 Panel See Contrast table(2)
26 Chassis Unit See Contrast table(2) 61 Screw IMS20P030FZK
27 Detach Grille Assy See Contrast table(2) 62 Fuse(10A) CEK1136
28 Screw BPZ20P120FZK 63 Cassette Mechanism Assy EXK3410
29 Button(EJECT) See Contrast table(2) 64 IC(IC501) TDA7384
30 Button(REW) See Contrast table(2) 65 Transistor(Q804) 2SD2395
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)
5
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
6
KEH-1940,1960
7
KEH-1940,1960
2.3 CASSETTE MECHANISM ASSY
8
KEH-1940,1960
- CASSETTE MECHANISM ASSY SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
1 Screw BSZ23P050FMC 46 Gear ENV1475
2 Washer CBG1003 47 Gear ENV1512
3 Connector(CN1) CKS2829 48 Gear ENV1513
4 Screw(M2x5) EBA1038 49 Gear ENV1502
5 Screw(M2x2.5) EBA1037 50 Lever ENV1480
6 Spring EBH1554 51 Lever ENV1487
7 Spring EBH1555 52