PIONEER KEH- P6800 Service 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. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER ELECTRONIC CORPORATION 1998

K-ZZS. NOV. 1998 Printed in Japan

ORDER NO.

CRT2305

MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH RDS TUNER

KEH-P7800R X1N/EW

KEH-P6800R X1N/EW

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.

CONTENTS

1. SAFETY INFORMATION ...........................................2

2. EXPLODED VIEWS AND PARTS LIST......................2

3. SCHEMATIC DIAGRAM ..........................................14

4. PCB CONNECTION DIAGRAM ...............................26

5. ELECTRICAL PARTS LIST .......................................36

6. ADJUSTMENT ........................................................46

7. GENERAL INFORMATION ......................................48

7.1 PARTS.................................................................48

7.1.1 IC...............................................................48

7.1.2 DISPLAY ...................................................53

7.2 DIAGNOSIS........................................................54

7.2.1 DISASSEMBLY.........................................54

7.2.2 TEST MODE .............................................55

7.3 BLOCK DIAGRAM..............................................58

8. OPERATIONS AND SPECIFICATIONS ...................59

KEH-P7800R/X1N/EW

2

KEH-P7800R,P6800R

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

- KEH-P7800R/X1N/EW

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.

11

8

24

5

4

6

3

2

7

12

13

10

9

14

15

1

- Owner's Manual, Installation Manual

Model Part No. Language
KEH-P7800R/X1N/EW CRD2744,2747 English, Spanish

CRD2745,2748 German, French
CRD2746,2749 Italian, Dutch

3

KEH-P7800R,P6800R

1 Cord Assy CDE5757
2 Accessory Assy CEA1917
3 Screw CBA1304
4 Handle CNC5395
5 Bush CNV3930

* 6 Polyethylene Bag E36-615

7 Polyethylene Bag CEG-162
8-1 Owner’s Manual CRD2744
8-2 Owner’s Manual CRD2745
8-3 Owner’s Manual CRD2746

8-4 Installation Manual CRD2747
8-5 Installation Manual CRD2748
8-6 Installation Manual CRD2749

* 8-7 Passport CRY1013
* 8-8 Warranty Card CRY1087

9 Battery CEX1030
10 Carton CHG3548
11 Contain Box CHL3548
12 Protector CHP2101
13 Protector CHP2102

14 Inner Box CHW1754
15 Remote Control Assy CXB3488
16 Screw Assy CZE3169

* 17 Polyethylene Bag CEG-127
* 18 Hexagonal Wrench CZE3176

* 19 Screw RMZ30H060FBK

20 Belt CZN6416
21 Holder Assy CZX3172
22 Holder Assy CZX3173
23 Remote Control Assy CZX3231

24 Case Assy CXB3520

Mark No. Description Part No. Mark No. Description Part No.

- 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.

20

22

21

23

19

18

17

16

15

4

KEH-P7800R,P6800R

- KEH-P6800R/X1N/EW

11

8

24

5

4

6

3

2

7

12

13

10

14

1

5

KEH-P7800R,P6800R

- Owner's Manual, Installation Manual

Model Part No. Language
KEH-P6800R/X1N/EW CRD2750,2753 English, Spanish

CRD2751,2754 German, French
CRD2752,2755 Italian, Dutch

1 Cord Assy CDE5757
2 Accessory Assy CEA1917
3 Screw CBA1304
4 Handle CNC5395
5 Bush CNV3930

* 6 Polyethylene Bag E36-615

7 Polyethylene Bag CEG-162
8-1 Owner’s Manual CRD2750
8-2 Owner’s Manual CRD2751
8-3 Owner’s Manual CRD2752

8-4 Installation Manual CRD2753
8-5 Installation Manual CRD2754
8-6 Installation Manual CRD2755

* 8-7 Passport CRY1013
* 8-8 Warranty Card CRY1087

9 •••••

10 Carton CHG3674
11 Contain Box CHL3674
12 Protector CHP2101
13 Protector CHP2102

14 Inner Box CHW1754

15-23 •••••

24 Case Assy CXB3520

Mark No. Description Part No. Mark No. Description Part No.

- PACKING SECTION PARTS LIST

6

KEH-P7800R,P6800R

2.2 EXTERIOR

7

KEH-P7800R,P6800R

1 Screw BMZ30P040FMC

2 Screw BSZ26P050FMC

3 Screw BSZ30P050FMC

4 Cord Assy CDE5757

5 Fuse(10A) CEK1136

6 Plug CKM1290

7 Case CNB2350

8 Holder CNC6798

9 Shield CNC7365

10 Spacer CNM5488

11 Panel CNS5148
12 Screw BSZ30P050FMC
13 Screw BSZ30P200FMC
14 Cord

See Contrast table(2)

15 Holder CNC5704

16 Cushion CNM4870
17 Insulator CNM6275
18 Insulator CNV5793
19 Tuner Amp Unit

See Contrast table(2)

20 Screw BMZ26P040FMC

21 Screw BPZ26P060FMC
22 Screw BSZ26P060FMC
23 Screw BSZ26P160FMC
24 Clamper CEF1005
25 Pin Jack(CN301) CKB1028

26 Terminal(CN403) CKF1059
27 Plug(CN952) CKM1288
28 Plug(CN604) CKS-783
29 Connector(CN601) CKS1499
30 Connector(CN751) CKS3408

31 Connector(CN602) CKS3568
32 Connector(CN603) CKS3597
33 Antenna Jack(CN402) CKX1056
34 Panel CNB2356
35 Heat Sink CNC7991

36 Holder CNC7996
37 Holder CNC7997
38 Case CNC7998
39 Case CNC8254
40 Holder CNC8255

41 Case CNC8350
42 Case CNC8351
43 Insulator CNM6099
44 Insulator CNM6190
45 Insulator CNM6257

46 •••••
47 Heat Sink CNR1505
48 Insulator CNV5792
49 FM/AM Tuner Unit CWE1466
50 Holder CNC6554

51 Chassis Unit

See Contrast table(2)

52 Screw ISS26P055FUC
53 Detach Grille Assy

See Contrast table(2)

54 Screw BPZ20P060FMC
55 Screw BPZ20P080FZK

56 Button(OPEN) CAC5804
57 Button(EJECT) CAC5805
58 Button(SOURCE) CAC5806
59 Button(BAND) CAC5807
60 Button(EQ) CAC5808

61 Button(DISP) CAC5809
62 Button(1-6) CAC5921
63 Spring CBH2205
64 Cover CNS5146
65 Holder CNV5537

66 Keyboard Unit CWM6266
67 LCD(LCD901) CAW1501
68 EL CEL1587
69 Connector(CN901) CKS2733
70 Holder CNC7992

71 Tape CNM6348
72 Spacer CNM6347
73 Connector CNV5536
74 Grille Unit

See Contrast table(2)

75 Screw IMS20P040FZK

76 Screw BPZ20P060FMC
77 Screw CBA1082
78 Screw CBA1176
79 Washer CBF1001
80 Spring CBH2063

81 Spring CBH2204
82 Cord CDE5800
83 Connector CKS2780
84 Roller CLA3386
85 Cushion CNM5486

86 Sheet CNM6109
87 PCB CNP5430
88 PCB CNP5444
89 Panel CNS5147
90 Holder CNS5157

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

Mark No. Description Part No.

8

KEH-P7800R,P6800R

Part No.

Mark No. Description KEH-P7800R/X1N/EW KEH-P6800R/X1N/EW

14 Cord CDE5761 Not used
19 Tuner Amp Unit CWM6062 CWM6151
51 Chassis Unit CXB3047 CXB3057
53 Detach Grille Assy CXB3435 CXB3441
74 Grille Unit CXB3479 CXB3485

103 Cord Not used CDE5801
106 Cassette Mechanism Module EXK3990 EXK3995

(2) CONTRAST TABLE

KEH-P7800R/X1N/EW and KEH-P6800R/X1N/EW are constructed the same except for the following:

91 Holder CNS5165
92 Holder CNS5389
93 Coil(L801) CTH1227
94 Holder Unit CXB3049
95 Holder Unit CXB3050

96 Holder Unit CXB3051
97 IC(IC301) PAL005A
98 Transistor(Q951) 2SD2396
99 Remote Control Assy CZX3231

100 Cover CZN6410

101 Switch(S602) CSN1027
102 Damper Unit CXB3180
103 Cord

See Contrast table(2)

104,105 •••••

106

Cassette Mechanism Module See Contrast table(2)

Mark No. Description Part No.

9

KEH-P7800R,P6800R

10

KEH-P7800R,P6800R

2.3 CASSETTE MECHANISM MODULE(KEH-P7800R/X1N/EW)

11

KEH-P7800R,P6800R

1 Screw BSZ20P040FMC
2 Washer CBF1037
3 Washer CBF1038
4 Washer CBG1003
5 Deck Unit EWM1018

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 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

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) EXA1490
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(KEH-P7800R/X1N/EW)

12

KEH-P7800R,P6800R

2.4 CASSETTE MECHANISM MODULE(KEH-P6800R/X1N/EW)

13

KEH-P7800R,P6800R

1 Screw BSZ20P040FMC
2 Washer CBF1037
3 Washer CBF1038
4 Washer CBG1003
5 Deck Unit EWM1021

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 •••••

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 ENV1500
35 Worm Gear ENV1439

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

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

46 Pinch Holder ENV1486
47 Reel Unit EXA1543
48 Head Base Unit EXA1457
49 Lever Unit EXA1438
50 Gear Unit EXA1574

51 Frame Unit EXA1458
52 Lever Unit EXA1439
53 Head Assy(HD1) EXA1506
54 Motor Unit(M1) EXA1490
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(KEH-P6800R/X1N/EW)

14

KEH-P7800R,P6800R

A

1

234

B

C

D

12

34

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-aA-a

A-b A-b

A-b A-b

A-a A-a

Large size

SCH diagram

Guide page

Detailed page

A

C

A-a

B

C

D

E F

MODULE

ANTENNA JACK

15

KEH-P7800R,P6800R

5

6

7

8

A

B

C

D

5

6

7

8

A-b

A

A

16

KEH-P7800R,P6800R

B

ANTENNA JACK

A

1

234

B

C

D

12

34

A-a

A-a

A-b

17

KEH-P7800R,P6800R

C

D

E

F

MODULE

5

6

7

8

A

B

C

D

5

6

7

8

A-a

A-a

A-b

C

18

KEH-P7800R,P6800R

A

A

1

234

B

C

D

12

34

A-a

A-b

A-b

19

KEH-P7800R,P6800R

5

6

7

8

A

B

C

D

5

6

7

8

A-b

A-a

A-b

20

KEH-P7800R,P6800R

3

1

2

FM/AM TUNER UN

B

A

1

234

B

C

D

12

34

3.2 FM/AM TUNER UNIT

B