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MULTI-CD/MD/DAB CONTROL DSP HIGH POWER CD PLAYER WITH RDS TUNER
DEH-P945R
EW
Service
Manual
DEH-P945R/EW
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, Wheelock Place, Singapore 238880
C PIONEER ELECTRONIC CORPORATION 1998
ORDER NO.
CRT2207
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................3
3. SCHEMATIC DIAGRAM ...........................................16
4. PCB CONNECTION DIAGRAM ................................46
5. ELECTRICAL PARTS LIST ........................................64
6. ADJUSTMENT..........................................................79
7. GENERAL INFORMATION .......................................83
7.1 PARTS .................................................................83
7.1.1 IC................................................................83
7.1.2 DISPLAY ..................................................100
7.2 DIAGNOSIS ......................................................101
7.2.1 DISASSEMBLY .......................................101
7.2.2 TEST MODE ............................................102
7.3 BLOCK DIAGRAM ............................................108
8. OPERATIONS AND SPECIFICATIONS...................110
- See the separate manual CX-680(CRT2216) for the CD mechanism description, disassembly and circuit
description.
- The CD mechanism employed in this model is one of H1 series.
K-FEA. JUNE 1998 Printed in Japan
DEX-P99R
EW
MULTI-CD/MD/DAB CONTROL DSP CD PLAYER WITH RDS TUNER


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2
DEH-P945R,DEX-P99R
- CD Player Service Precautions
1. For pickup unit(CXX1290) handling, please refer
to"Disassembly"(CX-680 Service Manual CRT2216).
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 81).
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.
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
rear of the player.
3. The triangular label is attached to the mechanism
unit frame.
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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3
DEH-P945R,DEX-P99R
24
19
31
12
10
8
9
27
28
4
5
15
36
17
3
4
2
22
29
23
26
1
16
30
6
18
20
11
21
34 34
41
35
37
14
39
38
7
25
32
42
43
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING


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4
DEH-P945R,DEX-P99R
- 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 Screw Assy
CZE3198
2 Screw
BNC40P120FZK
3 Screw
BPZ30P100FZK
*
4 Polyethylene Bag
CEG-127
*
5 Polyethylene Bag
CZE3201
6 Polyethylene Bag
CZE3188
*
7 Accessory Assy
CEA2429
8 Screw
CBA1002
9 Screw
CBA1120
10 Spring
CBH-865
11 Handle
CNC5395
12 Bush
CNV1917
*
13 Polyethylene Bag
E36-615
14 Bracket
CZN6467
15 Air Cushioned Bag
CEG1080
16 Belt
CZN6416
17 Air Cushioned Bag
CEG1192
18 Battery
CEX1006
19 Battery
CEX1030
20 Carton
See Contrast table(2)
21 Bracket Assy
CEA2346
22 Protector
CHP2089
23 Protector
CHP2090
24-1 Owner's Manual
CRD2727
24-2 Owner's Manual
CRD2728
24-3 Owner's Manual
CRD2729
24-4 Installation Manual
CRD2655
24-5 Installation Manual
CRD2656
24-6 Installation Manual
CRD2657
24-7 Polyethylene Bag
CEG1116
25 Remote Control Assy
CXB2660
25-1 Polyethylene Bag
CEG1011
26 Contain Box
CHD2637
27 Case Assy
CXA7194
28 Cord Assy
See Contrast table(2)
29 Cover
CEG1088
30 Base Assy
CEA2426
31 Microphone Assy
CPM1022
32 Remote Control Assy
CZX3218
33 ·····
*
34 Screw
RMZ30H060FBK
*
35 Polyethylene Bag
CEG-127
36 Remote Control Assy
CXB2636
*
37 Hexagonal Wrench
CZE3176
38 Sheet
CZA3371
39 Base
CNS5031
40 ·····
41 Screw Assy
CZE3169
42 Holder Assy
CZX3172
43 Holder Assy
CZX3173


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DEH-P945R,DEX-P99R
- Owner's Manual
Model
Part No.
Language
DEH-P945R/EW
CRD2652
English, Spanish
CRD2653
German, French
CRD2654
Italian, Dutch
DEX-P99R/EW
CRD2727
English, Spanish
CRD2728
German, French
CRD2729
Italian, Dutch
- Installation Manual
Model
Part No.
Language
DEH-P945R/EW, DEX-P99R/EW
CRD2655
English, Spanish
CRD2656
German, French
CRD2657
Italian, Dutch
Part No.
Mark No. Symbol and Description DEH-P945R/EW
DEX-P99R/EW
20 Carton
CHG3534
CHG3533
28 Cord Assy
CDE5730
CDE5657
(2) CONTRAST TABLE
DEH-P945R/EW and DEX-P99R/EW are constructed same except for the following: