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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 EUROPE NV
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2001
K-ZZS. MAR. 2001 Printed in Japan
ORDER NO.
CRT2660
SOURCE
DISP
EQ
FUNC
AUDIO
123456
E
B
SFEQ
SELECT
MULTI-CD/DAB CONTROL HIGH POWER MD PLAYER WITH RDS TUNER
MEH-P7300R
EW
Service
Manual
- This service manual should be used together with the following manual(s):
Model No.
Order No.
Mech. Module Remarks
CX-1020
CRT2653
MD-4LP
MD Mech. Module:Circuit Description, Mech.Description, Disassembly
MEH-P7300R/EW
MEH-P7350 ES
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................2
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...12
4. PCB CONNECTION DIAGRAM ................................42
5. ELECTRICAL PARTS LIST ........................................52
6. ADJUSTMENT..........................................................63
7. GENERAL INFORMATION .......................................67
7.1 DIAGNOSIS ........................................................67
7.1.1 TEST MODE ..............................................67
7.1.2 DISASSEMBLY .........................................71
7.1.3 CONNECTOR FUNCTION DESCRIPTION .......74
7.2 IC ........................................................................76
7.3 OPERATIONAL FLOW CHART ...........................84
8. OPERATIONS AND SPECIFICATIONS.....................85
MULTI-CD CONTROL HIGH POWER MD PLAYER WITH FM/AM TUNER
- US and foreign patents licensed from Dolby Laboratories Licensing Corporation.


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2
MEH-P7300R,P7350
1. SAFETY INFORMATION
1.1 MEH-P7300R/EW, P7350/ES
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.
1.2 MEH-P7300R/EW
1. Safety Precautions for those who Service this Unit.
· When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable
results.
Caution:
1. During repair or tests, minimum distance of 13cm from the focus lens must be kept.
2. During repair or tests, do not view laser beam for 10 seconds or longer.
2. A "CLASS 1 LASER PRODUCT" label is affixed to the
bottom of the player.
3. The triangular label is attached to the mechanism
module frame unit.
4. Specifications of Laser Diode
Specifications of laser radiation fields to which human access is possible during service.
Wavelength
=
800 nanometers
CLASS 1
LASER PRODUCT


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2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING(KEH-P7300R/EW)
MEH-P7300R.P7350
3
1 Carton
CHG4318
2 Cord Assy
CDE6435
*
3 Accessory Assy
CEA2397
4 Screw
CBA1002
5 Handle
CNC5395
6 Bush
CNV3930
*
7 Polyethylene Bag
E36-615
8 Polyethylene Bag
CEG-162
9-1 Polyethylene Bag
CEG1116
9-2 Owner's Manual
CRD3371
9-3 Owner's Manual
CRD3372
9-4 Owner's Manual
CRD3373
9-5 Installation Manual
CRD3374
*
9-6 Passport
CRY1013
*
9-7 Warranty Card
CRY1157
*
9-8 Caution Card
CRP1207
*
9-9 Caution Card
CRP1220
*
10 Battery
CEX1030
11 Contain Box
CHL4318
12 Protector
CHP2347
13 Protector
CHP2346
14 Case Assy
CXB3520
15 Inner Box
CHW1754
16 Remote Control Assy
CXB6860
17 Belt
CZN7661
18 Holder Assy
CZX3172
19 Holder Assy
CZX3173
20 Screw Assy
CZE3169
*
21 Polyethylene Bag
CEG-127
*
22 Hexagonal Wrench
CZE3176
*
23 Screw
RMZ30H060FBK
24 Remote Control Assy
CZX3246
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.
- Owner's Manual, Installation Manual
Model
Part No.
Language
MEH-P7300R/EW
CRD3371
English, Spanish
CRD3372
German, French
CRD3373
Italian, Dutch
CRD3374
English, Spanish, German, French, Italian, Dutch
9
14
11
8
13
12
6
5
7
4
3
1
15
10
16
17
23 23
20
21
22
24
18
19
2


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4
MEH-P7300R,P7350
2.2 PACKING(MEH-P7350/ES)
20
22
25
24
23
14
5
8
12
4
11
10
9
7
6
17
2
18
13
16
15
1
19
3
21


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5
MEH-P7300R.P7350
1 Carton
CHG4319
2 Cord Assy
CDE6438
3 Accessory Assy
CEA2395
4 Spring
CBH1650
5 Screw Assy
CEA2396
6 Screw
CBA1002
*
7 Polyethylene Bag
CEG-127
8 Screw
CRZ50P090FMC
9 Screw
TRZ50P080FMC
*
10 Polyethylene Bag
CEG-158
11 Handle
CNC5395
12 Bush
CNV3930
13 Polyethylene Bag
CEG-162
*
14 Battery
CEX1006
15 Contain Box
CHL4319
16 Protector
CHP2347
17 Protector
CHP2346
18 Case Assy
CXB3520
19-1 Polyethylene Bag
CEG1116
19-2 Owner's Manual
CRD3375
19-3 Owner's Manual
CRD3376
19-4 Installation Manual
CRD3377
* 19-5 Caution Card
CRP1207
* 19-6 Caution Card
CRP1220
20 Remote Control Assy
CXB3875
21 Inner Box
CHW1759
22 Base Assy
CEA2426
*
23 Base
CNS5031
*
24 Sheet
CZA3371
*
25 Polyethylene Bag
CZE3188
Mark No. Description
Part No.
Mark No. Description
Part No.
- PACKING SECTION PARTS LIST
- Owner's Manual, Installation Manual
Model
Part No.
Language
MEH-P7350/ES
CRD3375
English, Spanish
CRD3376
Arabic, Portuguese(B)
CRD3377
English, Spanish, Portuguese(B), Arabic