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-ZZB. OCT. 1999 Printed in Japan
ORDER NO.
CRT2398
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
KEH-P490
X1M/UC
Service
Manual
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................2
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .....9
4. PCB CONNECTION DIAGRAM ................................24
5. ELECTRICAL PARTS LIST ........................................33
6. ADJUSTMENT..........................................................40
7. GENERAL INFORMATION .......................................42
7.1 DISASSEMBLY ...................................................42
7.2 PARTS .................................................................43
7.2.1 IC.................................................................43
7.2.2 DISPLAY .....................................................47
8. OPERATIONS AND SPECIFICATIONS.....................48
KEH-P490/X1M/UC
KEH-P4950
X1M/ES
KEH-P4900
X1M/UC
- 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:Mech.Description and Greasing, Disassembly, Adjustment
- This service manual does not describe the CD test mode.
For the operations in the CD test mode, refer to the CD player's Service manual.
KEH-P490,P4900,P4950
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
3
6
10
2
9
8
7
5
4
15
17
18
11
14
13
12
16
1
19
20
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
KEH-P490,P4900,P4950
3
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.
- Owner's Manual, Installation Manual
Model
Part No.
Language
KEH-P490/X1M/UC
CRD3090
English, French
CRD3091
English, French
KEH-P4900/X1M/UC
CRD3088
English, French, Spanish
CRD3089
English, French, Spanish
KEH-P4950/X1M/ES
CRD3083
English, Spanish, Portuguese(B)
CRD3084
Chinese, Arabic
CRD3085
English, Spanish, Portuguese(B), Chinese, Arabic
- PACKING SECTION PARTS LIST
Part No.
Mark
No.
Description
KEH-P490/X1M/UC
KEH-P4900/X1M/UC
KEH-P4950/X1M/ES
*
1
Accessory Assy
CEA2350
CEA2350
CEA2350
2
Spring
CBH1650
CBH1650
CBH1650
3
Screw Assy
CEA2351
CEA2351
CEA2351
4
Screw
CBA1304
CBA1304
CBA1304
*
5
Polyethylene Bag
CEG-127
CEG-127
CEG-127
6
Screw
CRZ50P090FMC
CRZ50P090FMC
CRZ50P090FMC
7
Screw
TRZ50P080FMC
TRZ50P080FMC
TRZ50P080FMC
*
8
Polyethylene Bag
CEG-158
CEG-158
CEG-158
9
Handle
CNC5395
CNC5395
CNC5395
10
Bush
CNV3930
CNV3930
CNV3930
11
Polyethylene Bag
CEG1173
CEG1173
CEG-162
12
Carton
CHG3893
CHG3889
CHG3890
13
Contain Box
CHL3893
CHL3889
CHL3890
14
Protector
CHP2244
CHP2244
CHP2244
15
Protector
CHP2243
CHP2243
CHP2243
16-1
Owner's Manual
CRD3090
CRD3088
CRD3083
16-2
Owner's Manual
Not used
Not used
CRD3084
16-3
Installation Manual
CRD3091
CRD3089
CRD3085
*
16-4
Warranty Card
CRY1070
CRY1070
Not used
*
16-5
Card
Not used
ARY1048
Not used
17
Cord assy
CDE6222
CDE6222
CDE6222
18
Case assy
CXB3520
CXB3520
CXB3520
19
Battery
CEX1030
Not used
Not used
20
Remote Control Unit
CXB4284
Not used
Not used
4
KEH-P490,P4900,P4950
69
20
23
25
9
8
17
16
18
13
24
14
26
14
6
19
5
12
33
32
15
28
27
31
22
21
10
2
2
2
3
3
47
30
54
67
57
52
53
55
51
56
50
58
49
63
61
60
65
66
64
62
48
48
48
59
34
37
46
46
43
11
46
46
44
45
42
36
39
35
41
40
38
4
29
1
1
1
1
68
7
2
A
A
2.2 EXTERIOR
5
KEH-P490,P4900,P4950
1 Screw
BSZ26P050FMC
2 Screw
BSZ30P050FMC
3 Screw
BSZ30P200FMC
4 Cord Assy
CDE6222
5 Fuse(10A)
CEK1136
6 Transistor(Q904)
2SD2396
7 Case
CNB2350
8 Holder
CNC5704
9 Cushion
CNM5210
10 Insulator
CNM5963
11 Panel
CNS5132
12 Tuner Amp Unit
See Contrast table(2)
13 Screw
BPZ26P080FMC
14 Screw
BSZ26P080FMC
15 Screw
BSZ26P160FMC
16 FM/AM Tuner Unit
See Contrast table(2)
17 Holder
CNC6554
18 Pin Jack(CN301)
CKB1035
19 Plug(CN603)
CKM1270
20 Connector(CN701)
CKS3408
21 Connector(CN602)
CKS3568
22 Connector(CN601)
CKS3581
23 Antenna Jack(CN402)
CKX1056
24 Panel
CNB2343
25 Holder
CNC5399
26 Holder
CNC6845
27 Holder
CNC7996
28 Heat Sink
CNR1505
29 Holder Unit
CXB2687
30 Chassis Unit
CXB3012
31 IC(IC302)
TDA7384
32 Remote Control Unit
See Contrast table(2)
33 Cover
See Contrast table(2)
34 Button
CAC4836
35 Spring
CBH1834
36 Spring
CBH1835
37 Spring
CBH2182
38 Bracket
CNC6135
39 Bracket
CNC6791
40 Arm
CNV4692
41 Arm
CNV4693
42 Arm
CNV4728
43 Panel Unit
CXB4927
44 Door
CAT2109
45 Spring
CBH1838
46 Screw
IMS20P030FZK
47 Detach Grille Assy
See Contrast table(2)
48 Screw
BPZ20P100FZK
49 Button(DETACH)
CAC5789
50 Button(1-6)
CAC6239
51 Button(SOURCE)
CAC6241
52 Button(+)
CAC6242
53 Button(-)
CAC6243
54 Button(AUDIO)
CAC6245
55 Button(EQ)
CAC6247
56 Button(EJECT)
CAC6268
57 Button(BAND)
CAC6269
58 Spring
CBH2103
59 Cover
CNS5635
60 Keyboard Unit
See Contrast table(2)
61 LCD(LCD1901)
CAW1563
62 Connector(CN1901)
CKS3580
63 Holder
CNC8485
64 Sheet
CNM6453
65 Connector
CNV5914
66 Lighting Conductor
CNV5915
67 Grille Sub Assy
See Contrast table(2)
68 Cassette Mechanism ModuleEXK4000
69 Screw
ISS26P055FUC
Mark No. Description
Part No.
Mark No. Description
Part No.
(1) EXTERIOR SECTION PARTS LIST
(2) CONTRAST TABLE
KEH-P490/X1M/UC, KEH-P4900/X1M/UC and KEH-P4950/X1M/ES are constructed same except for the
following:
Part No.
Mark
No.
Description
KEH-P490/X1M/UC
KEH-P4900/X1M/UC
KEH-P4950/X1M/ES
12
Tuner Amp Unit
CWM7021
CWM7021
CWM7025
16
FM/AM Tuner Unit
CWE1467
CWE1467
CWE1486
32
Remote Control Unit
CXB4284
Not used
Not used
33
Cover
CNS4948
Not used
Not used
47
Detach Grille Assy
CXB5152
CXB4788
CXB4789
60
Keyboard Unit
CWM7022
CWM7024
CWM7024
67
Grille Sub Assy
CXB5209
CXB5210
CXB5211