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CONTENTS
SAFETY INFORMATION......................................................................................................................................2
1. SPECIFICATIONS .............................................................................................................................................8
2.1 PDP-5050SX ............................................................................................................................................10
2.1.1 PACKING SECTION...........................................................................................................................10
2.1.2 EXTERIOR SECTION ........................................................................................................................12
2.1.3 FRONT SECTION ..............................................................................................................................14
2.1.4 CHASSIS SECTION (1/3) ..................................................................................................................16
2.1.5 CHASSIS SECTION (2/3) ..................................................................................................................18
2.1.6 CHASSIS SECTION (3/3) ..................................................................................................................20
2.2 PDP-4350SX ............................................................................................................................................26
2.2.1 PACKING SECTION...........................................................................................................................26
2.2.2 EXTERIOR SECTION ........................................................................................................................28
2.2.3 FRONT SECTION ..............................................................................................................................30
2.2.4 CHASSIS SECTION (1/3) ..................................................................................................................32
2.2.5 CHASSIS SECTION (2/3) ..................................................................................................................34
2.2.6 CHASSIS SECTION (3/3) ..................................................................................................................36
3.1 BLOCK DIAGRAM....................................................................................................................................40
3.1.4 43 Y DRIVE ASSY..............................................................................................................................46
3.1.5 43 X DRIVE ASSY .............................................................................................................................47
3.1.6 50 Y DRIVE ASSY..............................................................................................................................48
3.1.7 50 X DRIVE ASSY .............................................................................................................................49
3.1.8 DIGITAL VIDEO ASSY .......................................................................................................................50
3.1.9 AV BOARD ASSY ..............................................................................................................................52
3.1.10 MAIN BOARD ASSY ........................................................................................................................54
3.1.11 AUDIO AMP ASSY...........................................................................................................................56
3.1.12 MR POWER SUPPLY UNIT .............................................................................................................57
3.1.13 TUNER BOARD ASSY.....................................................................................................................58
3.2 WAVEFORMS...........................................................................................................................................59
3.3 VOLTAGES................................................................................................................................................65
4. PCB CONNECTION DIAGRAM (Refer to "Service Manual: ARP3262)
5. PCB PARTS LIST ............................................................................................................................................71
6. ADJUSTMENT ................................................................................................................................................92
6.2 DRIVE ASSY ADJUSTMENT ...................................................................................................................94
6.3 ADJUSTMENT ITEMS..............................................................................................................................95
6.4 TRAP SWITCH .........................................................................................................................................99
6.5 SERVICE FACTORY MODE...................................................................................................................100
6.6 USING RS-232C COMMANDS ..............................................................................................................114
6.7 LIST OF RS-232C COMMANDS ............................................................................................................115
6.8 OUTLINE OF COMMANDS....................................................................................................................120
7. GENERAL INFORMATION ...........................................................................................................................127
7.1 DIAGNOSIS............................................................................................................................................127
7.1.1 PCB LOCATION ...............................................................................................................................127
7.1.7 TROUBLESHOOTING......................................................................................................................142
7.1.8 DISASSEMBLY ................................................................................................................................153
7.2 IC INFORMATION ..................................................................................................................................162
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PDP-5050SX
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A
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E
F
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