Table Of Contents - Pioneer DEH-1850 Service Manual

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CONTENTS
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SAFETY INFORMATION ..................................................................................................................................... 2
3 7 63 1515 0
1. SPECIFICATIONS ............................................................................................................................................ 5
2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 6
A
2.1 PACKING ................................................................................................................................................... 6
2.2 EXTERIOR................................................................................................................................................. 8
2.3 CD MECHANISM MODULE..................................................................................................................... 10
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .......................................................................................... 12
3.1 BLOCK DIAGRAM ................................................................................................................................... 12
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE).............................................................................. 14
3.3 KEYBOARD UNIT.................................................................................................................................... 20
3.4 CD MECHANISM MODULE..................................................................................................................... 22
4. PCB CONNECTION DIAGRAM ..................................................................................................................... 26
4.1 TUNER AMP UNIT................................................................................................................................... 26
4.2 KEYBOARD UNIT.................................................................................................................................... 30
4.3 CD CORE UNIT(S10.5) ........................................................................................................................... 32
B
5. ELECTRICAL PARTS LIST ............................................................................................................................ 34
6. ADJUSTMENT ............................................................................................................................................... 38
6.1 CD ADJUSTMENT................................................................................................................................... 38
6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT .................................................... 40
6.3 ERROR MODE ........................................................................................................................................ 42
6.4 SYSTEM MICROCOMPUTER TEST PROGRAM ................................................................................... 43
7. GENERAL INFORMATION ............................................................................................................................. 44
7.1 DIAGNOSIS ............................................................................................................................................. 44
7.1.1 DISASSEMBLY ..................................................................................................................................... 44
7.1.2 CONNECTOR FUNCTION DESCRIPTION .......................................................................................... 47
7.2 PARTS...................................................................................................................................................... 48
C
7.2.1 IC .......................................................................................................................................................... 48
7.2.2 DISPLAY ............................................................................................................................................... 56
7.3 OPERATIONAL FLOW CHART ............................................................................................................... 57
8. OPERATIONS ................................................................................................................................................ 58
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