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Service KEH-1900/X1M/UC
Manual ORDER NO.
CRT2424
HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
KEH-1900
KEH-1950 X1M/ES
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
CONTENTS
1. SAFETY INFORMATION............................................2 7. GENERAL INFORMATION.......................................32
2. EXPLODED VIEWS AND PARTS LIST ......................2 7.1 DISASSEMBLY ..................................................32
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ....8 7.2 PARTS ................................................................33
4. PCB CONNECTION DIAGRAM................................18 7.2.1 IC ...............................................................33
5. ELECTRICAL PARTS LIST........................................26 7.2.2 DISPLAY ...................................................36
6. ADJUSTMENT .........................................................30 8. OPERATIONS AND SPECIFICATIONS ....................37
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-1900,1950
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
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
1 16
6 3
7 17
4 20
5
9
12
2
10
8
14 18
19
15
11
13
2
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
3
KEH-1900,1950
2.2 EXTERIOR
4
KEH-1900,1950
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
1 Screw BSZ26P050FMC 36 Button(TUNER/BAND) CAC6297
2 Screw BSZ30P055FUC 37 Button(1-6) CAC6300
3 Screw BSZ30P060FMC 38 Button(DETACH) CAC6301
4 Screw BSZ30P100FMC 39 Spring CBH1836
5 Cord Assy CDE6145 40 Spring CBH2307
6 Case CNB2481 41 Cover CNS5696
7 Holder CNC5704 42 Keyboard Unit CWM6745
8 Insulator CNM5025 43 LCD(LCD901) CAW1568
9 Cushion CNM5210 44 Connector(CN901) CKS3580
10 Panel CNS5214 45 Holder CNC8525
11 Tuner Amp Unit See Contrast table(2) 46 Sheet CNM6486
12 Screw BPZ26P080FMC 47 Lighting Conductor CNV5969
13 Screw BSZ26P080FMC 48 Rubber CNV5970
14 Screw BSZ26P140FMC 49 Connector CNV5972
15 FM/AM Tuner Unit See Contrast table(2) 50 Grille Unit See Contrast table(2)
16 Holder CNC6554 51 Button CAC4836
17 Pin Jack(CN401) CKB1028 52 Spring CBH1834
18 Plug(CN603) CKM1270 53 Spring CBH1835
19 Connector(CN601) CKS3362 54 Spring CBH2367
20 Connector(CN602) CKS3581 55 Bracket CNC6135
21 Antenna Jack(CN301) CKX1056 56 Bracket CNC6791
22 Panel CNB2247 57 Arm CNV4692
23 Holder CNC5399 58 Arm CNV4693
24 Holder CNC6216 59 Arm CNV4728
25 Heat Sink CNC6217 60 Panel Unit CXB4926
26 Holder CNC6531 61 Door CAT2109
27 Holder CNC6845 62 Spring CBH1838
28 Chassis Unit CXA9851 63 Screw IMS20P030FZK
29 Holder Unit CXB2687 64 Fuse(10A) CEK1136
30 Detach Grille Assy See Contrast table(2) 65 Cassette Mechanism Assy EXK3410
31 Screw BPZ20P120FZK 66 IC(IC501) TDA7384
32 Button(EJECT) CAC5870 67 Transistor(Q804) 2SD2395
33 Button(REW) CAC5872 * 68 Cord See Contrast table(2)
34 Button(FF) CAC5874 69 Holder See Contrast table(2)
35 Button(CROSS) CAC6295
(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
5
KEH-1900,1950
2.3 CASSETTE MECHANISM ASSY
6
KEH-1900,1950
- 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