Pioneer KEH-P525 User manual

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. 501 Orchard Road, #10-00, Wheelock Place, Singapore 238880
C PIONEER ELECTRONIC CORPORATION 1998 K-ZEM. FEB. 1998 Printed in Japan
ORDER NO.
CRT2170
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
Se r v i c e
M a nu a l
KEH-P525 X1M/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.
-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-P5700 X1M/UC
• KEH-P525/X1M/UC
CONTENTS
1. SAFETY INFORMATION ...........................................2
2. EXPLODED VIEWS AND PARTS LIST......................2
3. SCHEMATIC DIAGRAM ..........................................12
4. PCB CONNECTION DIAGRAM ...............................22
5. ELECTRICAL PARTS LIST .......................................32
6. ADJUSTMENT ........................................................39
7. GENERAL INFORMATION ......................................41
7.1 PARTS.................................................................41
7.1.1 IC ...............................................................41
7.1.2 DISPLAY ...................................................45
7.2 DISASSEMBLY ..................................................46
7.3 BLOCK DIAGRAM..............................................47
8. OPERATIONS AND SPECIFICATIONS ...................48
KEH-P5750 X1M/ES

2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
2
KEH-P525,P5700,P5750
28
5
10
16
4
15
14
13
12
9
6
8
11
7
23
21
20
22 25
17
33
26
27
19
34
29
3
2
1
30,31,32
18
24
Fig. 1
1. SAFETY INFORMATION
UC model
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
Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive
toxicant which may cause birth defects or other reproductive harm (California Health and Safety Code, Section
25249.5). When servicing or handling circuit boards and other components which contain lead in solder, avoid
unprotected skin contact with the solder. Also, when soldering do not inhale any smoke or fumes produced.
-KEH-P525/X1M/UC

3
KEH-P525,P5700,P5750
NOTE:
-Parts marked by “*”and ⊗can not be supplied.
-Screws adjacent to ∇mark on the product are used for disassembly.
1 Cord Assy CDE5496
2 Base Assy CEA2344
* 3 Sheet CZA3371
4 Polyethylene Bag CZE3188
* 5 Base CZN6466
* 6 Bracket Assy CEA2346
7 Screw Assy CZE3198
8 Screw(x2) BNC40P120FZK
9 Screw(x2) BPZ30P100FZK
* 10 Polyethylene Bag CEG-127
* 11 Polyethylene Bag CZE3201
12 Bracket CZN6467
* 13 Accessory Assy CEA2350
14 Spring CBH1650
15 Screw Assy CEA2351
16 Screw CBA1304
* 17 Polyethylene Bag CEG-127
18 Screw(x4) CRZ50P090FMC
19 Screw(x4) TRZ50P080FMC
* 20 Polyethylene Bag CEG-158
21 Handle(x2) CNC5395
22 Bush CNV3930
23 Polyethylene Bag CEG1173
24 Battery CEX1006
25 Carton CHG3468
26 Contain Box CHL3468
27 Protector CHP2021
28 Protector CHP2022
* 29 Inner Box CHW1548
30 Owner’s Manual CRD2581
31 Installation Manual CRD2582
* 32 Warranty Card CRY1070
33 Case Assy CXB1063
34 Remote Control Assy CXB1157
Mark No. Description Part No. Mark No. Description Part No.
-PACKING SECTION PARTS LIST(KEH-P525/X1M/UC)
-Owner's Manual, Installation Manual
Model Part No. Language
KEH-P525/X1M/UC CRD2581 English, French
CRD2582 English, French

4
KEH-P525,P5700,P5750
5
10
16
4
15
14
13
12
9
6
8
11
7
21 22
3
2
1
20
17,18,19
23
-KEH-P5700/X1M/UC,P5750/X1M/ES
Fig. 2

5
KEH-P525,P5700,P5750
Part No.
Mark No. Description KEH-P5700/X1M/UC KEH-P5750/X1M/ES
1 Cord Assy CDE5496 CDE5496
* 2 Accessory Assy CEA2350 CEA2350
3 Spring CBH1650 CBH1650
4 Screw Assy CEA2351 CEA2351
5 Screw CBA1304 CBA1304
* 6 Polyethylene Bag CEG-127 CEG-127
7 Screw(x4) CRZ50P090FMC CRZ50P090FMC
8 Screw(x4) TRZ50P080FMC TRZ50P080FMC
* 9 Polyethylene Bag CEG-158 CEG-158
10 Handle(x2) CNC5395 CNC5395
11 Bush CNV3930 CNV3930
12 Polyethylene Bag CEG1173 CEG-162
13 Carton CHG3467 CHG3466
14 Contain Box CHL3467 CHL3466
15 Protector CHP2021 CHP2021
16 Protector CHP2022 CHP2022
17 Owner’s Manual CRD2583 CRD2593
18 Installation Manual CRD2584 CRD2595
* 19 Card ARY1048 Not used
20 Owner’s Manual Not used CRD2594
21 Remote Control Unit CXB1146 CXB1146
22 Battery CEX1030 CEX1030
23 Case Assy CXB1063 CXB1063
-PACKING SECTION PARTS LIST(KEH-P5700/X1M/UC,P5750/X1M/ES)
-Owner's Manual, Installation Manual
KEH-P5700/X1M/UC CRD2583 English, French, Spanish
CRD2584 English, French, Spanish
KEH-P5750/X1M/ES CRD2593 English, Spanish
CRD2594 Portuguese, Arabic
CRD2595 English, Spanish,
Portuguese, Arabic

6
KEH-P525,P5700,P5750
Fig. 3
2.2 EXTERIOR

7
KEH-P525,P5700,P5750
1 Screw BSZ26P050FMC
2 Screw BSZ30P060FMC
3 Cord Assy CDE5496
4 Spring CBH1650
5 Screw CBA1304
6 Handle CNC5395
7 Bush CNV3930
8 Fuse CEK1136
9 Case CNB2283
10 Holder Unit CXB2678
11 Panel CNS4200
12 Cap CNV2680
13 Screw BMZ30P100FMC
14 Screw BSZ30P055FUC
15 Screw BSZ30P060FMC
16 Cord CDE5176
17 Holder CNC5704
18 Cushion CNM4870
19 Insulator CNM5571
⊗20 Tuner Amp Unit See Contrast table(2)
21 Screw BPZ26P080FMC
22 Screw BSZ26P080FMC
23 Screw BSZ26P140FMC
24 Cord Assy(CN603) See Contrast table(2)
25 FM/AM Tuner Unit See Contrast table(2)
26 Holder CNC6554
27 Pin Jack(CN301) CKB1028
28 Plug(CN951) CKM1270
29 Connector(CN751) CKS3408
30 Connector(CN602) CKS3568
31 Connector(CN601) CKS3581
32 Connector(CN302) CKS3598
33 Antenna Jack(CN402) CKX1056
34 Panel CNB2258
35 Holder CNC5399
36 Holder CNC6531
37 Holder CNC6674
38 Holder CNC6845
39 Heat Sink CNR1426
40 Chassis Unit CXB2347
41 Case Assy CXB1063
42 Remote Control Assy See Contrast table(2)
43 Battery Cover See Contrast table(2)
44 Detach Grille Assy See Contrast table(2)
45 Screw BPZ20P100FZK
46 Button( ) CAC5430
47 Button( , ) CAC5432
48 Button(SOURCE) CAC5433
49 Button(+,–) CAC5435
50 Button(BAND,F,A) CAC5437
51 Button(1,2,3,4,5,6) CAC5439
52 Button(D) CAC5441
53 Button(LD/CLK,P, ) CAC5542
54 Spring CBH2103
55 Spacer CNM5572
56 Sheet CNM5897
57 Cover CNS4775
58 Lighting Conductor CNV5195
59 Keyboard Unit CWM5673
60 LCD(LCD901) CAW1477
61 Connector(CN901) CKS3580
62 Holder CNC7479
63 Sheet CNM5726
64 Sheet CNM5727
65 Sheet CNM5728
66 Lighting Conductor CNV5196
67 Housing CNV5197
68 Connector CNV5205
69 Grille Unit See Contrast table(2)
70 Button CAC4836
71 Spring CBH1834
72 Spring CBH1835
73 Spring CBH1996
74 Bracket CNC6135
75 Bracket CNC6791
76 Arm CNV4692
77 Arm CNV4693
78 Arm CNV4728
79 Panel Unit See Contrast table(2)
80 Door CAT1947
81 Spring CBH1838
82 Screw IMS20P030FZK
83 Cassette Mechanism ModuleEXK3615
84 Transistor(Q951) 2SD2396
85 IC(IC301) See Contrast table(2)
86 LED(D903 — 905) NSPWF50SB
87 Remote Control Unit See Contrast table(2)
88 Cover See Contrast table(2)
89 Cord See Contrast table(2)
,
,
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.

8
KEH-P525,P5700,P5750
Part No.
Mark No. Description KEH-P525/X1M/UC KEH-P5700/X1M/UC KEH-P5750/X1M/ES
⊗20 Tuner Amp Unit CWM5671 CWM5835 CWM5835
24 Cord Assy(CN603) CDE5178 CDE5178 Not used
25 FM/AM Tuner Unit CWE1467 CWE1467 CWE1486
42 Remote Control Assy CXB1157 Not used Not used
43 Battery Cover CNS4406 Not used Not used
44 Detach Grille Assy CXB2306 CXB2445 CXB2441
69 Grille Unit CXB2487 CXB2486 CXB2488
79 Panel Unit CXB2352 CXB2367 CXB2367
85 IC(IC301) TDA7386 TDA7384 TDA7384
87 Remote Control Unit Not used CXB1146 CXB1146
88 Cover Not used CNS4139 CNS4139
89 Cord Assy(CN603) Not used Not used CDE5327
(2) CONTRAST TABLE
KEH-P525/X1M/UC, KEH-P5700/X1M/UC and KEH-P5750/X1M/ES are constructed the same except for
the following:

9
KEH-P525,P5700,P5750
Fig. 4
2.3 CASSETTE MECHANISM MODULE

10
KEH-P525,P5700,P5750
1 Screw BSZ20P040FMC
2 Washer CBF1037
3 Washer CBF1038
4 Washer CBG1003
5 Deck Unit EWM1010
6 Screw EBA1028
7 Screw EBA1037
8 Spring EBH1531
9 Spring EBH1575
10 Plug(CN251) CKS3540
11 Spring EBH1515
12 Spring EBH1587
13 Spring EBH1517
14 Spring EBH1518
15 Spring EBH1519
16 Spring EBH1537
17 Cord EDD1020
18 Photo-interrupter(EGN2,3) EGN1006
19 Photo-interrupter(EGN1) EGN1005
20 Roller ENR1031
21 Shaft ELA1373
22 Pinch Roller ENV1518
23 Arm ENC1489
24 Arm ENC1397
25 Guide ENC1481
26 Holder ENC1417
27 Lever ENC1448
28 Arm ENC1488
* 29 Motor EXM1031
30 Belt ENT1027
31 Gear ENV1347
32 Collar ENV1508
33 Gear ENV1350
34 Flywheel ENV1529
35 Worm Gear ENV1439
36 Worm Wheel ENV1440
37 Gear ENR1028
38 Lever ENV1442
39 Arm ENV1525
40 Gathering P.C.Board ENX1037
41 Gathering P.C.Board ENX1042
42 Switch(S1,S2) ESG1004
43 Motor Unit(M2) EXA1485
44 Chassis Unit EXA1511
45 Pinch Holder ENV1485
46 Pinch Holder ENV1486
47 Reel Unit EXA1543
48 Head Base Unit EXA1457
49 Lever Unit EXA1438
50 Gear Unit EXA1545
51 Frame Unit EXA1458
52 Lever Unit EXA1439
53 Head Assy(HD1) EXA1506
54 Motor Unit(M1) EXA1544
55 Washer HBF-179
56 Screw BMZ20P022FMC
57 Spring EBH1545
58 Washer YE20FUC
59 Pinch Holder Unit EXA1529
60 Pinch Holder Unit EXA1528
Mark No. Description Part No. Mark No. Description Part No.
-CASSETTE MECHANISM MODULE SECTION PARTS LIST

11
KEH-P525,P5700,P5750

12
KEH-P525,P5700,P5750
A
1234
B
C
D
1234
3. SCHEMATIC DIAGRAM
3.1 OVERALL CONNECTION DIAGRAM (GUIDE PAGE)
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL
PARTS LIST”.
A-a A-b
A-a A-b
A-b
A-a
Large size
SCH diagram
Guide page
Detailed page
AC
A-a
A
B
C
DEF

13
KEH-P525,P5700,P5750
5678
A
B
C
D
5678
A-b
A
Fig. 5
POWER AMP

14
KEH-P525,P5700,P5750
A
1234
B
C
D
1234
A
B
A-a
A-a A-b

15
KEH-P525,P5700,P5750
5678
A
B
C
D
5678
C
DEF
Fig. 6
A-a
A-a A-b
C

16
KEH-P525,P5700,P5750
A
1234
B
C
D
1234
POWER AMP
A-a A-b
A-b

17
KEH-P525,P5700,P5750
5678
A
B
C
D
5678
Fig. 7
A-b
A-a A-b

18
KEH-P525,P5700,P5750
A
1234
B
C
D
1234
KEH-P525/X1M/UC P5700/X1M/UC
KEH-P5750/X1M/ES
3.2 FM/AM TUNER UNIT
B
A
B
FM/AM TUNER UNIT

19
KEH-P525,P5700,P5750
5678
A
B
C
D
5678
BFig. 8

20
KEH-P525,P5700,P5750
A
1234
B
C
D
1234
3.3 CASSETTE MECHANISM MODULE
A
D
D