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CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................3
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...12
4. PCB CONNECTION DIAGRAM ................................34
5. ELECTRICAL PARTS LIST ........................................42
6. ADJUSTMENT..........................................................48
7. GENERAL INFORMATION .......................................49
7.1 DIAGNOSIS ........................................................49
7.1.1 DISASSEMBLY ..............................................49
7.1.2 CONNECTOR FUNCTION DESCRIPTION ....50
7.2 PARTS .................................................................51
7.2.1 IC ....................................................................51
7.2.2 DISPLAY.........................................................57
7.3 OPERATIONAL FLOW CHART ..........................59
7.4 CLEANING .........................................................60
8. OPERATIONS AND SPECIFICATIONS.....................61
PIONEER CORPORATION
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) 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. NOV. 2001 Printed in Japan
ORDER NO.
CRT2804
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH RDS TUNER
KEH-P6021R
X
N/EE
Service
Manual
KEH-P6021R/XN/EE
- This service manual should be used together with the following manual(s):
Model No.
Order No.
Mech. Module Remarks
CX-1011
CRT2406
3L
Cassette Mech. Module:Mech.Description, Disassembly, Adjustment
KEH-P6025 XN/ES
NOTE:
- 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.
For details, refer to "Important symbols for good services" on the next page.
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER


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2
KEH-P6021R,P6025
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.
[ Important symbols for good services ]
In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.
When you find the procedures bearing any of the symbols, be sure to fulfill them:
2. Adjustments
To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.
In accordance with the procedures or instructions described in this manual, adjustments should be performed.
3. Cleaning
For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,
proper cleaning should be performed to restore their performances.
5. Lubricants, glues, and replacement parts
Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying
glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the
prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed
ones should be used.
4. Shipping mode and shipping screws
To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or
the shipping screws should be installed before shipping out in accordance with this manual, if necessary.
1. Product safety
You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and
should keep the safety during servicing by following the safety instructions described in this manual.


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- Owner's Manual, Installation Manual
Model
Part No.
Language
KEH-P6021R/XN/EE
CRD3539
English, Russian
CRD3554
3
KEH-P6021R,P6025
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING(KEH-P6021R)
10
1
12
6
8
9
11
4
3
5
2
13
14
15
16
7
1 Cord Assy
CDE6438
2 Screw
CBA1002
3 Handle
CNC5395
4 Bush
CNV3930
*
5 Polyethylene Bag
E36-615
6 Polyethylene Bag
CEG-162
7-1 Polyethylene Bag
CEG1116
7-2 Owner's Manual
CRD3539
7-3 Installation Manual
CRD3554
*
7-4 Warranty Card
CRY1157
8 Carton
CHG4559
9 Contain Box
CHL4559
10 Protector
CHP2251
11 Protector
CHP2252
12 Case Assy
CXB3520
13 Screw
BPZ20P060FZK
14 Accessory Assy
CEA3062
15 Earth Plate
CNC9450
16 Inner Box
CHW1754
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.
- For the applying amount of lubricants or glue, follow the instructions in this manual.
( In the case of no amount instructions, apply as you think it appropriate.)


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4
KEH-P6021R,P6025
2.2 PACKING(KEH-P6025)
10
1
12
6
8
9
11
2
4
3
5
15
17
16
18
14
13
7
1 Cord Assy
CDE6436
2 Bush
CNV3930
3 Handle
CNC5395
4 Spring
CBH1650
*
5 Polyethylene Bag
CEG-158
6 Polyethylene Bag
CEG-162
7-1 Polyethylene Bag
CEG1116
7-2 Owner's Manual
CRD3535
7-3 Owner's Manual
CRD3536
7-4 Installation Manual
CRD3552
8 Carton
CHG4558
9 Contain Box
CHL4558
10 Protector
CHP2251
11 Protector
CHP2252
12 Case Assy
CXB3520
*
13 Polyethylene Bag
CEG-127
14 Remote Control Unit
CXB8744
15 Screw
TRZ50P080FMC
16 Screw
CRZ50P090FMC
17 Screw
CBA1002
*
18 Battery
CEX1065
Mark No. Description
Part No.
Mark No. Description
Part No.
- PACKING SECTION PARTS LIST


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5
KEH-P6021R,P6025
- Owner's Manual, Installation Manual
Model
Part No.
Language
KEH-P6025/XN/ES
CRD3535
English, Spanish, Portuguese(B), Chinese, Arabic
CRD3536
CRD3552