PIONEER ELECTRONIC 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 ELECTRONIC CORPORATION 1998
K-ZZS. NOV. 1998 Printed in Japan
ORDER NO.
CRT2306
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
KEH-P780
X1N/UC
Service
Manual
KEH-P7800 X1N/UC
NOTE:
- See the separate manual CX-631(CRT1640) for the cassette mechanism description.
- The cassette mechanism assy employed in this model is one of 2L series.
- Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
KEH-P780/X1N/UC
CONTENTS
1. SAFETY INFORMATION ...........................................2
2. EXPLODED VIEWS AND PARTS LIST......................2
3. SCHEMATIC DIAGRAM ..........................................10
4. PCB CONNECTION DIAGRAM ...............................20
5. ELECTRICAL PARTS LIST .......................................30
6. ADJUSTMENT ........................................................40
7. GENERAL INFORMATION ......................................42
7.1 PARTS.................................................................42
7.1.1 IC ...............................................................42
7.1.2 DISPLAY ...................................................47
7.2 DIAGNOSIS........................................................48
7.2.1 DISASSEMBLY .........................................48
7.2.2 TEST MODE .............................................49
7.3 BLOCK DIAGRAM..............................................52
8. OPERATIONS AND SPECIFICATIONS ...................53
2
KEH-P780,P7800
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
20
19
15
12
16
17
4
7
11
3
10
9
8
6
5
2
14
18
13
1
21
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
1. SAFETY INFORMATION
3
KEH-P780,P7800
1 Cord Assy
See Contrast table(2)
*
2 Accessory Assy
CEA2350
3 Spring
CBH1650
4 Screw Assy
CEA2351
5 Screw
CBA1304
*
6 Polyethylene Bag
CEG-127
7 Screw
CRZ50P090FMC
8 Screw
TRZ50P080FMC
*
9 Polyethylene Bag
CEG-158
10 Handle
CNC5395
11 Bush
CNV3930
12 Polyethylene Bag
CEG1173
13 Battery
See Contrast table(2)
14 Carton
See Contrast table(2)
15 Contain Box
See Contrast table(2)
16 Protector
CHP2101
17 Protector
CHP2102
18 Remote Control Unit
See Contrast table(2)
19 Case Assy
CXB3520
20-1 Owner's Manual
See Contrast table(2)
(English, French)
20-2 Installation Manual
See Contrast table(2)
(English, French)
* 20-3 Warranty Card
See Contrast table(2)
21 Cord Assy
See Contrast table(2)
Mark No. Description
Part No.
Mark No. Description
Part No.
(1) PACKING SECTION PARTS LIST
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.
Part No.
Mark No. Symbol and Description KEH-P780/X1N/UC
KEH-P7800/X1N/UC
1 Cord Assy
CDE5758
Not used
13 Battery
CEX1030
Not used
14 Carton
CHG3551
CHG3550
15 Contain Box
CHL3551
CHL3550
18 Remote Control Unit
CXB3456
Not used
20-1 Owner's Manual
CRD2760
CRD2758
20-2 Installation Manual
CRD2761
CRD2759
* 20-3 Warranty Card
CRY1070
Not used
21 Cord Assy
Not used
CDE5802
(2) CONTRAST TABLE
KEH-P780/X1N/UC and KEH-P7800/X1N/UC are constructed the same except for the following:
4
KEH-P780,P7800
2.2 EXTERIOR
5
KEH-P780,P7800
1 Screw
BMZ30P040FMC
2 Screw
BSZ26P050FMC
3 Screw
BSZ30P050FMC
4 Cord Assy
See Contrast table(2)
5 Fuse(10A)
CEK1136
6 Case
CNB2350
7 Holder
CNC6798
8 Shield
CNC7365
9 Spacer
CNM5488
10 Panel
CNS5148
11 Cap
CNV2680
12 Screw
BSZ30P050FMC
13 Screw
BSZ30P200FMC
14 Cord
CDE5176
15 Cord
See Contrast table(2)
16 Holder
CNC5704
17 Cushion
CNM4870
18 Insulator
CNM6275
19 Insulator
CNV5793
20 Tuner Amp Unit
See Contrast table(2)
21 Screw
BMZ26P040FMC
22 Screw
BPZ26P060FMC
23 Screw
BSZ26P060FMC
24 Screw
BSZ26P160FMC
25 Clamper
See Contrast table(2)
26 Pin Jack(CN301)
CKB1028
27 Terminal(CN403)
CKF1059
28 Plug(CN951)
CKM1231
29 Plug(CN604)
CKS-783
30 Connector(CN601)
CKS1499
31 Connector(CN751)
CKS3408
32 Connector(CN602)
CKS3568
33 Connector(CN603)
See Contrast table(2)
34 Connector(CN302)
CKS3598
35 Antenna Jack(CN402)
CKX1056
36 Panel
See Contrast table(2)
37 Heat Sink
CNC7991
38 Holder
CNC7996
39 Holder
CNC7997
40 Case
CNC7998
41 Case
CNC8254
42 Holder
CNC8255
43 Case
CNC8350
44 Case
CNC8351
45 Insulator
CNM6099
46 Insulator
CNM6190
47 Insulator
CNM6257
48 Heat Sink
CNR1505
49 Insulator
CNV5792
50 FM/AM Tuner Unit
CWE1467
51 Holder
CNC6554
52 Chassis Unit
CXB3048
53 Screw
ISS26P055FUC
54 Detach Grille Assy
See Contrast table(2)
55 Screw
BPZ20P060FMC
56 Screw
BPZ20P080FZK
57 Button(OPEN)
CAC5804
58 Button(EJECT)
CAC5805
59 Button(SOURCE)
CAC5806
60 Button(BAND)
CAC5807
61 Button(EQ)
CAC5808
62 Button(DISP)
CAC5809
63 Button(1-6)
CAC5922
64 Spring
CBH2205
65 Cover
CNS5146
66 Holder
CNV5537
67 Keyboard Unit
CWM6061
68 LCD(LCD901)
CAW1502
69 EL
CEL1587
70 Connector(CN901)
CKS2733
71 Holder
CNC7992
72 Tape
CNM6348
73 Spacer
CNM6347
74 Connector
CNV5536
75 Grille Unit
See Contrast table(2)
76 Screw
BPZ20P060FMC
77 Screw
CBA1082
78 Screw
CBA1176
79 Washer
CBF1001
80 Spring
CBH2063
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description
Part No.
Mark No. Description
Part No.