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Service KEH-P8800R/EW



Manual ORDER NO.
CRT2341

MULTI-CD/MD/DAB CONTROL HIGH POWER CASSETTE PLAYER WITH RDS TUNER



KEH-P8800R EW

KEH-P8800R-W
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
EW

KEH-P8850 ES

- 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.



SERVICE PRECAUTION : (KEH-P8850/ES only)
In the first production, the following parts had been mounted temporarily to support the microcomputer
IC601 (PD5496A): R631 (RS1/10S102J), R632 (RS1/10S473J), and IC631 (Non spare part).
When replacing IC601 PD5496A, use PD5496B as IC601, and then remove the 3 parts listed above.




CONTENTS
1. SAFETY INFORMATION ............................................2 6. ADJUSTMENT..........................................................52
2. EXPLODED VIEWS AND PARTS LIST .......................2 7. GENERAL INFORMATION .......................................53
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...12 7.1 DISASSEMBLY ...................................................53
4. PCB CONNECTION DIAGRAM ................................30 7.2 IC ........................................................................54
5. ELECTRICAL PARTS LIST ........................................40 8. OPERATIONS AND SPECIFICATIONS.....................61


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 1999 K-ZZB. APR. 1999 Printed in Japan
KEH-P8800R,P8800R-W,P8850



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
- KEH-P8800R/EW, KEH-P8800R-W/EW




9

2

5
6
12
4
3 10

1
7




14




13
11
8

22
23
16
24
17

20 20 19
21 18



15




2
KEH-P8800R,P8800R-W,P8850



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-P8800R/EW KEH-P8800R-W/EW
1 Cord Assy CDE6007 CDE6007
2 Accessory Assy CEA2538 CEA2538
3 Screw CBA1002 CBA1002
4 Screw CBA1120 CBA1120
5 Handle CNC5395 CNC5395

6 Bush CNV1917 CNV1917
* 7 Polyethylene Bag E36-615 E36-615
* 8 Cover CEG1088 CEG1088
9-1 Polyethylene Bag CEG1116 CEG1116
9-2 Owner's Manual CRD2956 CRD2956

9-3 Owner's Manual CRD2957 CRD2957
9-4 Owner's Manual CRD2958 CRD2958
9-5 Installation Manual CRD2959 CRD2959
* 9-6 Caution Card CRP1207 CRP1207
9-7 Passport CRY1013 CRY1013

* 9-8 Warranty Card CRY1087 CRY1087
9-9 Caution Card CRP1208 CRP1208
10 Case Assy CXB3520 CXB3520
11 Battery CEX1030 CEX1030
12 Carton CHG3778 CHG3779

13 Contain Box CHL3778 CHL3779
14 Protector CHP2186 CHP2186
15 Protector CHP2187 CHP2187
16 Remote Control Assy CXB3488 CXB3488
17 Screw Assy CZE3169 CZE3169

* 18 Polyethylene Bag CEG-127 CEG-127
* 19 Hexagonal Wrench CZE3176 CZE3176
* 20 Screw RMZ30H060FBK RMZ30H060FBK
21 Belt CZN6416 CZN6416
22 Holder Assy CZX3172 CZX3172

23 Holder Assy CZX3173 CZX3173
24 Remote Control Assy CZX3231 CZX3231




- Owner's Manual, Installation Manual
Model Part No. Language
KEH-P8800R/EW CRD2956 English, Spanish
KEH-P8800R-W/EW CRD2957 German, French
CRD2958 Italian, Dutch
CRD2959 English, Spanish, German, French, Italian, Dutch




3
KEH-P8800R,P8800R-W,P8850



- KEH-P8850/ES




18




10
11 6
13 8
9
20 15
12
16
7



14

24




19
1



22




21
3
4 17
5




2


25
23




4
KEH-P8800R,P8800R-W,P8850



- PACKING SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
1 Cord Assy CDE5867 16 Bush CNV1917
2 Base Assy CEA2426 * 17 Cover CEG1088
* 3 Base CNS5031 18-1 Polyethylene Bag CEG1116
* 4 Sheet CZA3371 18-2 Owner's Manual CRD2962
5 Polyethylene Bag CZE3188 18-3 Owner's Manual CRD2963

* 6 Accessory Assy CEA2431 18-4 Installation Manual CRD2964
7 Spring CBH-865 * 18-5 Caution Card CRP1207
* 8 Screw Assy CEA2434 19 Battery CEX1006
9 Screw BMZ50P060FMC 20 Carton CHG3777
10 Screw CBA1002 21 Contain Box CHL3777

11 Screw CBA1120 22 Protector CHP2186
* 12 Polyethylene Bag CEG-127 23 Protector CHP2187
13 Screw CMZ50P060FMC 24 Case Assy CXB3520
* 14 Polyethylene Bag CEG-158 25 Remote Control Assy CXB3875
15 Handle CNC5395




- Owner's Manual, Installation Manual
Model Part No. Language
KEH-P8850/ES CRD2962 English, Spanish
CRD2963 Portuguese, Arabic
CRD2964 English, Spanish, Portuguese, Arabic




5
KEH-P8800R,P8800R-W,P8850

2.2 EXTERIOR
/ES /ES




102
117
118
114



115

/EW
10
116
115 113

103
116




/EW 104
2


14
14 9
14
110

5 4


8
8 1
6
7 1
7 1

/ES
3

105
42 21

C
23
72 63
16
82 55 109
39
A
A
48
54 22
47 35
108 107
43 B
112
79 71 73 45
60 112
53 112 37
60 112 61 34
38
61
65 46
77
45 66
59 112
25
62

51
36
47
81 75 31
C 16
44 70 28 18
62 24
32
29
44 50
69 26
76 111 12
49 69 11
112
74
67 111 84
49 64
33 120
52 49
56 58 106
27
24 30
74 40
57 49 50
13
78
49 68
80
52 112
57 41

119
20



87

101 87
95
16

96

87 15
94 86
B 16
88

91
19
90
97
98
83

99

92
89
85 17
100 93
17




6
KEH-P8800R,P8800R-W,P8850




(1) EXTERIOR SECTION PARTS LIST


Mark No. Description Part No. Mark No. Description Part No.
1 Screw BSZ26P050FMC 51 Screw CBA1454
2 Screw BSZ30P120FMC 52 Spring CBH2130
3 Cord Assy See Contrast table(2) 53 Spring CBH2251
4 Cord Assy CDE5863 54 Cord CDE5960
5 Cord Assy See Contrast table(2) 55 Cord CDE6003

6 Fuse(10A) See Contrast table(2) 56 Connector(CN9001) CKS3997
7 Cap See Contrast table(2) 57 Roller CLA3583
8 Resistor See Contrast table(2) 58 Frame CNC8201
9 Case CNB2427 59 Arm CNC8293
10 Holder CNC6798 60 Spacer CNM6155

11 Earth Terminal See Contrast table(2) 61 Spacer CNM6156
12 Cushion See Contrast table(2) 62 Spacer CNM6419
13 Panel See Contrast table(2) 63 PCB CNP5321
14 Cap CNV2680 64 PCB CNP5355
15 Screw BMZ30P230FMC 65 Panel CNS5249

16 Screw BSZ30P050FMC 66 Lighting Conductor CNV5608
17 Screw CBA1447 67 Cover CNV5610
18 Antenna Cable CDH1263 68 Guide CNV5672
19 Holder CNC4963 69 Guide CNV5696
20 Insulator CNM6137 70 Rack CNV5697

21 Tuner Amp Unit See Contrast table(2) 71 Gear CNV5698
22 Screw ASZ26P080FMC 72 Gear CNV5761
23 Screw BMZ26P200FMC 73 Torque Limiter Unit CNV5762
24 Clamper CEF1007 74 Holder CNV5763
25 Plug(CN901) CKM1278 75 Switch(S953) CSN1022

26 Plug(CN851) CKS-786 76 Arm Unit CXB3574
27 Connector(CN801) CKS1532 77 Frame Unit CXB3575
28 Connector(CN902) CKS3124 78 Holder Unit CXB3576
29 Connector(CN101) CKS3408 79 Bracket Unit CXB3577
30 Connector(CN651) CKS3568 80 Arm Unit CXB3866

31 Connector(CN681) See Contrast table(2) 81 Holder Unit CXB3867
32 Connector(CN351) CKS3606 82 Motor(M951) CXM1085
33 Mini Jack(CN451) CKX1046 83 Chassis Unit See Contrast table(2)
34 Holder CNC8171 84 Screw ISS26P055FUC
35 Holder CNC8174 85 Detach Grille Assy See Contrast table(2)

36 Holder CNC8176 86 Screw BPZ20P060FMC
37 Holder See Contrast table(2) 87 Screw BPZ20P080FZK
38 Transistor(Q803,921) 2SD2396 88 Button(D) CAC5891
39 Heat Sink CNR1536 89 Button(EQ) See Contrast table(2)
40 FM/AM Tuner Unit See Contrast table(2) 90 Button(SOURCE) See Contrast table(2)

41 Holder CNC7532 91 Button(1-6) See Contrast table(2)
42 Panel Assy CXB3581 92 Button( ) See Contrast table(2)
43 Screw BMZ20P030FMC 93 Button( ) See Contrast table(2)
44 Screw CBA1154 94 Housing CNV5606
45 Screw BPZ20P060FMC 95 Keyboard Unit See Contrast table(2)

46 Door CAT2016 96 Connector(CN1902) CKS3995
47 Screw CBA1060 97 Connector(CN1901) CKS3996
48 Screw CBA1061 * 98 PCB CNP5508
49 Screw CBA1082 99 OEL Module MXK8002
50 Screw CBA1430 100 Grille Unit See Contrast table(2)




7
KEH-P8800R,P8800R-W,P8850




Mark No. Description Part No. Mark No. Description Part No.
101 Cover Unit See Contrast table(2) 111 Washer 2-1816-0035-D2-00
102 Case Assy CXB3520 112 Washer 2-1821-0045-D2-00
103 Remote Control Assy See Contrast table(2) 113 Cord Assy See Contrast table(2)
104 Battery Cover See Contrast table(2) 114 Fuse(10A) See Contrast table(2)
105 Cassette Mechanism Module EXK3990 115 Cap See Contrast table(2)

106 Insulator See Contrast table(2) 116 Resistor See Contrast table(2)
107 IC(IC301) PAL005A 117 Remote Control Assy See Contrast table(2)
108 Switch(S952) CNS1022 118 Battery Cover See Contrast table(2)
109 Switch(S951) CNS1012 119 Cover See Contrast table(2)
110 Terminal Cap See Contrast table(2) 120 Holder CNC7533




(2) CONTRAST TABLE
KEH-P8800R/EW, KEH-P8800R-W/EW and KEH-P8850/ES are constructed same except for the following:

Part No.
Mark No. Description KEH-P8800R/EW KEH-P8800R-W/EW KEH-P8850/ES
3 Cord Assy Not used Not used CDE5853
5 Cord Assy CDE6007 CDE6007 Not used
6 Fuse(10A) CEK1136 CEK1136 Not used
7 Cap CNS1472 CNS1472 Not used
8 Resistor RS1/2PMF102J RS1/2PMF102J Not used

11 Earth Terminal CNC8019 CNC8019 CNC7358
12 Spacer CNM6482 CNM6482 CNM4870(Cushion)
13 Panel CNS5256 CSN5581 CNS5548
21 Tuner Amp Unit CWM6305 CWM6305 CWM6307
31 Connector(CN681) Not used Not used CKS3582

37 Holder CNC8172 CNC8172 CNC8178
40 FM/AM Tuner Unit CWE1500 CWE1500 CWE1501
83 Chassis Unit CXB3563 CXB4040 CXB3586
85 Detach Grille Assy CXB3291 CXB3981 CXB3293
89 Button(EQ) CNC5894 CNC6200 CAC5899

90 Button(SOURCE) CNC5892 CNC5892 CAC5901
91 Button(1-6) CNC5896 CNC6201 CAC5911
92 Button( ) CNC5890 CNC6199 CAC6126
93 Button( ) CNC5926 CNC5926 CAC6146
95 Keyboard Unit CWM6225 CWM6225 CWM6226

100 Grille Unit CXB3289 CXB4951 CXB3292
101 Cover Unit CXB4309 CXB4311 CXB4310
103 Remote Control Assy CZX3231 CZX3231 Not used
104 Cover CZN6410 CZN6410 Not used
106 Insulator CNM5967 CNM5967 Not used

110 Terminal Cap Not used Not used CKX-003
113 Cord Assy Not used Not used CDE5867
114 Fuse(10A) Not used Not used CEK1136
115 Cap Not used Not used CNS1472
116 Resistor Not used Not used RS1/2PMF102J

117 Remote Control Assy Not used Not used CXB3875
118 Battery Cover Not used Not used CNS5032
119 Cover Not used CNM4710 Not used



8
KEH-P8800R,P8800R-W,P8850




9
KEH-P8800R,P8800R-W,P8850



2.3 CASSETTE MECHANISM MODULE




10
KEH-P8800R,P8800R-W,P8850



- CASSETTE MECHANISM MODULE SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.
1 Screw BSZ20P040FMC 46 Pinch Holder ENV1486
2 Washer CBF1037 47 Reel Unit EXA1543
3 Washer CBF1038 48 Head Base Unit EXA1457
4 Washer CBG1003 49 Lever Unit EXA1438
5 Deck Unit EWM1018 50 Gear Unit EXA1545

6 Screw EBA1028 51 Frame Unit EXA1458
7 Screw EBA1037 52 Lever Unit EXA1439
8 Spring EBH1531 53 Head Assy(HD1) EXA1506
9 Spring EBH1575 54 Motor Unit(M1) EXA1490
10 Plug(CN251) CKS3540 55 Washer HBF-179

11 Spring EBH1515 56 Screw BMZ20P022FMC
12 Spring EBH1587 57 Spring EBH1545
13 Spring EBH1517 58 Washer YE20FUC
14 Spring EBH1518 59 Pinch Holder Unit EXA1529
15 Spring EBH1519 60 Pinch Holder Unit EXA1528

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 EXM1027
30 Belt ENT1027

31 Gear ENV1347
32 Collar ENV1508
33 Gear ENV1350
34 Flywheel ENV1500
35 Worm Gear ENV1439

36 Worm Wheel ENV1440
37 Gear ENR1037
38 Lever ENV1442
39 Arm ENV1525
40 Gathering PCB ENX1037

41 Gathering PCB ENX1042
42 Switch(S1,S2) ESG1004
43 Motor Unit(M2) EXA1485
44 Chassis Unit EXA1567
45 Pinch Holder ENV1485




11
1 2 3 4
KEH-P8800R,P8800R-W,P8850



3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
A
3.1 BLOCK DIAGRAM


A TUNER AMP UNIT
B FM/AM TUNER UNIT
FM FRONT END FM/AM 1ST IF 10.7MHz Q911
Q3 T51 Q51 CF51 CF52 CF53 FM MPX
CN451
ANT 25 24
Q153 Q151 VDD B.U
GND2 1 27 TMUTE RMUTE Q913 15V REG.
DI/DO 32 19
2
IC 2 PM4008A 6
Q154 Q155
B.U
IC 911
38 39 42 44 46 63 TUN5V B.U
69
34 33 41 44 11 12 13 46 LDET S-81250SGUP
20
ANT1 TV

ANT2 TV




DALMON
RF TV




22 70
54 COMP TMUTE 82
MIXER.IF AMP DET 21 tmute
IC 1 78 LDET
18
19
ldet
PML002A 65 Q501 43
71
FLPILM Q805
35
Q201 Q204 VDD
33 45 55 57 CF202 61 74 75
28 24 FM/AM 81
CN351
EEPROM FM/AM 5 FRONT
AM RF AGC
5 4 IC 501 L CH
AM RF IC 3
20
SYSTEM HIGH OUT Q353
PM4009A 6
AM 2ND IF 450kHz 6 BR9010FV 3 CONTROL
9 16
11 12 FLI FLO
VCC IC 601(1/2) REAR
RDS 11
RLI IC 271 14
SDBW




RLO 9
FMSD
DI/DO




PD5495A PA2028A L CH
VDD X501 DECODER
CE2


CE1




NL1
NL2




7 SWLO 18 Q355
CK




95 PD5496A
SL




3.648MHz NL IN1 10
22 10 14 12 15 16 8 13 2 3 4 89
Q402 SK
49 SUB
PDIO