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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 2003
K-ZZY. FEB. 2003 Printed in Japan
ORDER NO.
CRT3042
MULTI-CD CONTROL HIGH POWER CD/MP3 PLAYER WITH FM/AM TUNER
DEH-P450MP
XU/UC
Service
Manual
DEH-P4500MP XU/UC
DEH-P3550MP XQ/ES, XU/CN, XU/NC
- This service manual should be used together with the following manual(s):
For the parts numbers, adjustments, etc. which are not shown in this manual, refer to the following
manual(s).
Model No.
Order No.
Mech. Module Remarks
DEH-P450MP/XM/UC
CRT3019
CX-3057
CRT3026
S10MP3
CD Mech. Module:Circuit Description, Mech.Description, Disassembly


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2
1
234
12
34
F
E
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C
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DEH-P450MP/XU/UC
EXTERIOR (Page 8)
- EXTERIOR SECTION PARTS LIST
Part No.
DEH-P450MP/XM/UC
DEH-P450MP/XU/UC
Mark No. Symbol and Description DEH-P4500MP/XM/UC DEH-P4500MP/XU/UC
35 Holder Unit
CXB6681
CNC8659 (Holder)
55 Panel Unit
CWM8758
CWM8844
61 Service Panel Unit
CXX1691
Not used
86 Lighting Conductor
CNV7711
CNV7495
96 Panel Unit
Not used
CXC1942
EXPLODED VIEWS AND PARTS LIST
PACKING (Page 6)
- PACKING SECTION PARTS LIST
* : Non spare part
Part No.
Mark No. Symbol and Description DEH-P450MP/XM/UC
DEH-P450MP/XU/UC
17 Carton
CHG4952
CHG5064
18 Contain Box
CHL4952
CHL5064
Part No.
Mark No. Symbol and Description DEH-P4500MP/XM/UC DEH-P4500MP/XU/UC
17 Carton
CHG4953
CHG5065
18 Contain Box
CHL4953
CHL5065
Part No.
Mark No. Symbol and Description DEH-P3550MP/XM/ES DEH-P3550MP/XQ/ES DEH-P3550MP/XU/CN
17 Carton
CHG4954
CHG5020
CHG5029
18 Contain Box
CHL4954
CHL5020
CHL5029
21-1 Owner's Manual
CRD3680
CRB1821
CRB1821
21-2 Owner's Manual
CRD3681
Not used
Not used
21-3 Installation Manual
CRD3682
CRB1822
CRB1822
Part No.
Mark No. Symbol and Description DEH-P3550MP/XM/ES DEH-P3550MP/XU/NC
17 Carton
CHG4954
CHG5066
18 Contain Box
CHL4954
CHL5066
21-1 Owner's Manual
CRD3680
CRD3778
21-2 Owner's Manual
CRD3681
CRD3779
21-3 Installation Manual
CRD3682
CRD3780


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7
8
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5
6
7
8
DEH-P450MP/XU/UC
ELECTRICAL PARTS LIST(Page 44)
PANEL UNIT
Part No.
DEH-P450MP/XM/UC
DEH-P450MP/XU/UC
DEH-P4500MP/XM/UC DEH-P4500MP/XU/UC
DEH-P3550MP/XM/ES DEH-P3550MP/XQ/ES
DEH-P3550MP/XU/CN
DEH-P3550MP/XU/NC
C 1970
CKSRYB104K16
CKSRYB104K25
Part No.
DEH-P3550MP/XQ/ES
DEH-P3550MP/XU/CN
Mark No. Symbol and Description DEH-P3550MP/XM/ES DEH-P3550MP/XU/NC
35 Holder Unit
CXB6681
CNC8659 (Holder)
55 Panel Unit
CWM8758
CWM8844
61 Service Panel Unit
CXX1691
Not used
86 Lighting Conductor
CNV7711
CNV7496
91 Panel Unit
Not used
CXC1942


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4
PANEL UNIT
PANEL UNIT
SIDE A
SIDE B
B F
B F
B F
C F
Capacitor
Connector
P.C.Board
Chip Part
SIDE B
SIDE A
NOTE FOR PCB DIAGRAMS
1.The parts mounted on this PCB
include all necessary parts for
several destination.
For further information for
respective destinations, be sure
to check with the schematic dia-
gram.
2.Viewpoint of PCB diagrams
CN1901
A CN831
EJECT
1
234
12
34
F
E
D
C
B
A
DEH-P450MP/XU/UC
PCB CONNECTION DIAGRAM
PANEL UNIT


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5
KEYBOARD UNIT
KEYBOARD UNIT
SIDE A
SIDE B
C F
C F
C F
IC,Q
IC,Q
B F
CN1951
DISP
EQ
SRC
1
2
3
4
5
6
LOUD
BAND/ESC
FUNC
PAUSE
AUDIO
CLK
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P450MP/XU/UC
KEYBOARD UNIT