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MULTI-CD CONTROL HIGH POWER CD PLAYER WITH ID-LOGIC TUNER
DEH-P645
UC
Service
Manual
DEH-P56
UC
DEH-P545
UC
DEH-46
UC
DEH-445
UC
DEH-41
UC
DEH-P645/UC
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, Lane Wheelock Place, Singapore 23880
C PIONEER ELECTRONIC CORPORATION 1998
ORDER NO.
CRT2147
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................3
3. SCHEMATIC DIAGRAM ...........................................12
4. PCB CONNECTION DIAGRAM ................................40
5. ELECTRICAL PARTS LIST ........................................50
6. ADJUSTMENT..........................................................75
7. GENERAL INFORMATION .......................................81
7.1 PARTS .................................................................81
7.1.1 IC................................................................81
7.1.2 DISPLAY ....................................................88
7.2 DIAGNOSIS ........................................................89
7.2.1 DISASSEMBLY .........................................89
7.2.2 TEST MODE ..............................................90
7.3 BLOCK DIAGRAM ..............................................92
8. OPERATIONS AND SPECIFICATIONS.....................94
- See the separate manual CX-597(CRT1829) for the CD mechanism description, disassembly and circuit
description.
- The CD mechanism employed in this model is one of S7 series.
K-FEA. FEB. 1998 Printed in Japan


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2
DEH-P645,P56,P545,46,445,41
- CD Player Service Precautions
1. For pickup unit(CXX1230) handling, please refer
to"Disassembly"(CX-597 Service Manual CRT1829).
During replacement, handling precautions shall be
taken to prevent an electrostatic discharge(protection
by a short pin).
2. During disassembly, be sure to turn the power off
since an internal IC might be destroyed when a con-
nector is plugged or unplugged.
3. Please checking the grating after changing the ser-
vice pickup unit(see page 79).
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 toxi-
cant 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.
1. SAFETY INFORMATION


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3
DEH-P645,P56,P545,46,445,41
5
9
15
4
14
16
21
20
22
19
17
18
23
13
12
1
2
11
8
6
7
10
3
Fig. 1
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING


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4
DEH-P645,P56,P545,46,445,41
- PACKING SECTION PARTS LIST
(1) PARTS LIST
Mark No. Description
Part No.
Mark No. Description
Part No.
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.
*
1-1 Card
See Contrast table(2)
1-2 Polyethylene Bag
CEG1116
1-3 Owner's Manual
See Contrast table(2)
1-4 Installation Manual
See Contrast table(2)
*
1-5 Warranty Card
See Contrast table(2)
1-6 Caution Card
See Contrast table(2)
2 Cord Assy
See Contrast table(2)
3 Accessory Assy
CEA1918
4 Spring
CBH-865
5 Screw Assy
CEA1924
6 Screw
CBA-102
7 Screw
CBA1284
*
8 Polyethylene Bag
CNM4338
9 Screw
CRZ50P090FMC
10 Nut
NF50FMC
11 Screw
TRZ50P080FMC
*
12 Polyethylene Bag
CEG-158
13 Handle
CNC5395
14 Strap
CNF-111
15 Bush
CNV1009
16 Polyethylene Bag
CEG1173
17 Battery
See Contrast table(2)
18 Carton
See Contrast table(2)
19 Contain Box
See Contrast table(2)
20 Protector
CHP1766
21 Protector
CHP1767
22 Case Assy
CXB1063
23 Remote Control Unit
See Contrast table(2)
- Owner's Manual
Model
Part No.
Language
DEH-P645/UC
CRD2555
English, French
DEH-P56/UC
CRD2564
English, French
DEH-P545/UC
CRD2566
English, French, Spanish
DEH-46/UC
CRD2572
English, French, Spanish
DEH-445/UC
CRD2574
English, French, Spanish
DEH-41/UC
CRD2576
English, French, Spanish
- Installation Manual
Model
Part No.
Language
DEH-P645/UC
CRD2556
English, French
DEH-P56/UC
CRD2565
English, French
DEH-P545/UC
CRD2567
English, French, Spanish
DEH-46/UC
CRD2573
English, French, Spanish
DEH-445/UC
CRD2575
English, French, Spanish
DEH-41/UC
CRD2577
English, French, Spanish
Part No.
Mark No. Symbol and Description DEH-P645/UC
DEH-P56/UC
*
1-1 Card
ARY1048
Not used
1-3 Owner's Manual
CRD2555
CRD2564
1-4 Installation Manual
CRD2556
CRD2565
*
1-5 Warranty Card
Not used
CRY1070
1-6 Caution Card
CRP1182
Not used
17 Battery
CEX1030
Not used
18 Carton
CHG3435
CHG3439
19 Contain Box
CHL3435
CHL3439
23 Remote Control Unit
CXB1225
Not used
(2) CONTRAST TABLE
DEH-P645/UC, DEH-P56/UC, DEH-P545/UC, DEH-46/UC, DEH-445/UC and DEH-41/UC are constructed
same except for the following:


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DEH-P645,P56,P545,46,445,41
Part No.
Mark No. Symbol and Description DEH-P645/UC
DEH-P545/UC
1-3 Owner's Manual
CRD2555
CRD2566
1-4 Installation Manual
CRD2556
CRD2567
1-6 Caution Card
CRP1182
Not used
17 Battery
CEX1030
Not used
18 Carton
CHG3435
CHG3438
19 Contain Box
CHL3435
CHL3438
23 Remote Control Unit
CXB1225
Not used
Part No.
Mark No. Symbol and Description DEH-P645/UC
DEH-46/UC
*
1-1 Card
ARY1048
Not used
1-3 Owner's Manual
CRD2555
CRD2572
1-4 Installation Manual
CRD2556
CRD2573
*
1-5 Warranty Card
Not used
CRY1070
1-6 Caution Card
CRP1182
Not used
17 Battery
CEX1030
Not used
18 Carton
CHG3435
CHG3443
19 Contain Box
CHL3435
CHL3443
23 Remote Control Unit
CXB1225
Not used
Part No.
Mark No. Symbol and Description DEH-P645/UC
DEH-445/UC
1-3 Owner's Manual
CRD2555
CRD2574
1-4 Installation Manual
CRD2556
CRD2575
17 Battery
CEX1030
Not used
18 Carton
CHG3435
CHG3444
19 Contain Box
CHL3435
CHL3444
23 Remote Control Unit
CXB1225
Not used
Part No.
Mark No. Symbol and Description DEH-P645/UC
DEH-41/UC
1-3 Owner's Manual
CRD2555
CRD2576
1-4 Installation Manual
CRD2556
CRD2577
1-6 Caution Card
CRP1182
Not used
2 Cord Assy
CDE5483
CDE5484
17 Battery
CEX1030
Not used
18 Carton
CHG3435
CHG3445
19 Contain Box
CHL3435
CHL3445
23 Remote Control Unit
CXB1225
Not used
5