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DEH-1550/XU/ES
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CD Player Service Precautions
1. Before disassembling the unit, be sure to turn off the
power. Unplugging and plugging the connectors dur-
ing power-on mode may damage the ICs inside the
unit.
2. To protect the pickup unit from electrostatic dis-
charge during serviving, take an appropriate treat-
ment(shorting-solder) by referring to "the DISAS-
SEMBLY" on page 39.
3. After replacing the pickup unit, be sure to check the
grating.(See p.36.)
4. In this product, because the memory capacity of the
microcomputer is insufficient, the test mode is not
installed. However grating of the pickup unit can be
confirmed.
CONTENTS
SAFETY INFORMATION ............................................................................................................................................2
1. SPECIFICATIONS .......................................................................................................................................................4
2. EXPLODED VIEWS AND PARTS LIST.......................................................................................................................5
2.1 PACKING...............................................................................................................................................................5
2.2 EXTERIOR.............................................................................................................................................................6
2.3 CD MECHANISM MODULE .................................................................................................................................8
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...................................................................................................10
3.1 BLOCK DIAGRAM ..............................................................................................................................................10
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) ........................................................................................12
3.3 KEYBOARD UNIT ...............................................................................................................................................18
3.4 CD MECHANISM MODULE ...............................................................................................................................20
4. PCB CONNECTION DIAGRAM ................................................................................................................................24
4.1 TUNER AMP UNIT .............................................................................................................................................24
4.2 KEYBOARD UNIT ...............................................................................................................................................28
4.3 CD MECHANISM MODULE ...............................................................................................................................30
5. ELECTRICAL PARTS LIST ........................................................................................................................................32
6. ADJUSTMENT .........................................................................................................................................................35
6.1 CD ADJUSTMENT .............................................................................................................................................35
6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT................................................................36
6.3 ERROR MODE ....................................................................................................................................................38
7. GENERAL INFORMATION .......................................................................................................................................39
7.1 DIAGNOSIS ........................................................................................................................................................39
7.1.1 DISASSEMBLY ..............................................................................................................................................39
7.1.2 CONNECTOR FUNCTION DESCRIPTION ....................................................................................................44
7.2 PARTS .................................................................................................................................................................45
7.2.1 IC ....................................................................................................................................................................45
7.2.2 DISPLAY.........................................................................................................................................................52
7.3 OPERATIONAL FLOW CHART...........................................................................................................................53
7.4 CLEANING ..........................................................................................................................................................54
8. OPERATIONS ...........................................................................................................................................................55
Summary of Contents for DEH-1550 XU
Page 4: ...1 SPECIFICATIONS 4 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES ...
Page 6: ...6 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES 2 2 EXTERIOR ...
Page 8: ...8 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES C 2 3 CD MECHANISM MODULE ...
Page 14: ...14 a C CN701 FM AM TUNER UNIT 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES ...
Page 15: ...15 A a A b A a A a B CN1801 5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES ...
Page 18: ...18 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES 3 3 KEYBOARD UNIT B ...
Page 25: ...5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES 25 A SIDE A FRONT ANTENNA FM AM TUNER UNIT ...
Page 26: ...26 A A TUNER AMP UNIT 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES ...
Page 27: ...A SIDE B 5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES 27 ...
Page 29: ...5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES 29 ...
Page 55: ...55 5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES 8 OPERATIONS ...
Page 56: ...56 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES 56 ...
Page 57: ...57 5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES ...