Pioneer DEH-MG2047, Service Manual

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DEH-MG2047ZF/XU/UC
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CONTENTS
SAFETY INFORMATION......................................................................................................................................2
1. SPECIFICATIONS .............................................................................................................................................4
2. EXPLODED VIEWS AND PARTS LIST.............................................................................................................5
2.1 PACKING ....................................................................................................................................................5
2.2 EXTERIOR .................................................................................................................................................6
2.3 MECHANISM ASSY(G2B)(SERVICE)(1) ...................................................................................................8
2.4 MECHANISM ASSY(G2B)(SERVICE)(2) .................................................................................................10
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................12
3.1 BLOCK DIAGRAM ....................................................................................................................................12
3.2 TUNER AMP UNIT ...................................................................................................................................16
3.3 KEYBOARD UNIT ....................................................................................................................................22
3.4 CD MECHANISM MODULE(GUIDE PAGE) .............................................................................................24
4. PCB CONNECTION DIAGRAM ......................................................................................................................34
4.1 TUNER AMP UNIT ...................................................................................................................................34
4.2 KEYBOARD UNIT ....................................................................................................................................38
4.3 CD MECHANISM MODULE .....................................................................................................................40
5. ELECTRICAL PARTS LIST .............................................................................................................................46
6. ADJUSTMENT ................................................................................................................................................55
6.1 CD ADJUSTMENT ...................................................................................................................................55
6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT.....................................................57
6.3 TEST MODE(CD) .....................................................................................................................................59
7. GENERAL INFORMATION .............................................................................................................................63
7.1 DIAGNOSIS ..............................................................................................................................................63
7.1.1 DISASSEMBLY......................................................................................................................................63
7.1.2 CONNECTOR FUNCTION DESCRIPTION ..........................................................................................68
7.2 PARTS ......................................................................................................................................................69
7.2.1 IC ...........................................................................................................................................................69
7.2.2 DISPLAY ................................................................................................................................................76
7.3 EXPLANATION .........................................................................................................................................77
7.3.1 SYSTEM BLOCK DIAGRAM .................................................................................................................77
7.3.2 OPERATIONAL FLOW CHART .............................................................................................................78
7.4 NOTES ON SERVICING ..........................................................................................................................79
7.4.1 CLEANING ............................................................................................................................................79
7.4.2 FACTORY SETTINGS ...........................................................................................................................79
8. OPERATIONS .................................................................................................................................................80