PDP-425CMX
6
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CONTENTS
1. SPECIFICATIONS ............................................................................................................................................ 7
2. EXPLODED VIEWS AND PARTS LIST .......................................................................................................... 10
2.1 PACKING SECTION ................................................................................................................................ 10
2.2 FRONT and REAR SECTION.................................................................................................................. 12
2.3 TERMINAL SECTION .............................................................................................................................. 14
2.4 MULTIBASE SECTION ............................................................................................................................ 16
2.5 FRAME SECTION.................................................................................................................................... 18
2.6 DRIVE SECTION ..................................................................................................................................... 20
2.7 CHASSIS SECTION ................................................................................................................................ 22
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM..........................................................................................24
3.1 OVERALL CONNECTION DIAGRAM (1/2) ............................................................................................. 24
3.2 OVERALL CONNECTION DIAGRAM (2/2) ............................................................................................. 26
3.3 OVERALL BLOCK DIAGRAM (1/2) ......................................................................................................... 28
3.4 OVERALL BLOCK DIAGRAM (2/2) ......................................................................................................... 30
3.5 MAIN ASSY BLOCK DIAGRAM............................................................................................................... 32
3.6 COMMON SLOT ASSY ........................................................................................................................... 34
3.7 KEY, LED, SENB, SENC and SEND ASSYS........................................................................................... 35
3.8 AUDIO and SUS COMM IF ASSYS......................................................................................................... 36
3.9 POWER BLOCK DIAGRAM..................................................................................................................... 38
3.10 CONNECTOR PIN DESCRIPTION ....................................................................................................... 40
5. PCB PARTS LIST ........................................................................................................................................... 56
6. ADJUSTMENT ............................................................................................................................................... 69
6.1 ADJUSTMENT REQUIRED WHEN THE SET IS REPAIRED OR REPLACED ....................................... 69
6.2 ADJUSTMENT......................................................................................................................................... 70
6.3 SERVICE MENU LIST ............................................................................................................................. 73
6.4 SERVICE MENU...................................................................................................................................... 74
6.5 FACTORY MODE..................................................................................................................................... 76
6.6 RS-232C C0MMAND ............................................................................................................................... 87
6.7 METHOD FOR REPLACING THE SERVICE PANEL ASSY.................................................................. 115
7. GENERAL INFORMATION........................................................................................................................... 121
7.1 DIAGNOSIS ........................................................................................................................................... 121
7.1.1 PCB LOCATION .............................................................................................................................. 121
7.1.2 DIAGNOSIS OF SHUTDOWN/POWER-DOWN INDICATED BY LEDS.......................................... 122
7.1.3 TROUBLESHOOTING..................................................................................................................... 128
7.1.4 POWER ON/OFF FUNCTION FOR THE LARGE POWER SIGNAL SYSTEM............................... 157
7.1.5 BACKUP WHEN THE MAIN UNIT IS ADJUSTED .......................................................................... 158
7.1.6 HOW TO CLEAR HISTORY DATA ................................................................................................... 160
7.1.7 FAN CONTROL ............................................................................................................................... 162
7.1.8 POWER ON SEQUENCE................................................................................................................ 163
7.1.9 DISASSEMBLY................................................................................................................................ 164
7.2 IC ........................................................................................................................................................... 170
8. PANEL FACILITIES ...................................................................................................................................... 180
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