PDP-508XG
2
1234
1 234
C
D
F
A
B
E
CONTENTS
1. CONTRAST OF MISCELLANEOUS PARTS .................................................................................................... 4
2. BASIC ITEMS FOR SERVICE.......................................................................................................................... 8
2.1 QUICK REFERENCE................................................................................................................................. 8
3. BLOCK DIAGRAM .......................................................................................................................................... 10
3.1 OVERALL WIRING DIAGRAM (1/2) ........................................................................................................ 10
3.2 OVERALL WIRING DIAGRAM (2/2) ........................................................................................................ 12
3.3 OVERALL BLOCK DIAGRAM .................................................................................................................. 14
3.4 POWER SUPPLY BLOCK of MULTI BASE SECTION ............................................................................. 16
3.5 TANSHI ASSY.......................................................................................................................................... 18
3.6 POWER SUPPLY BLOCK of 50LED&IR&RLS and SIDE KEY ASSYS................................................... 19
4. DIAGNOSIS .................................................................................................................................................... 20
4.1 POWER SUPPLY OPERATION ............................................................................................................... 20
4.1.1 LED DISPLAY INFORMATION ........................................................................................................... 20
4.1.2 POWER ON SEQUENCE ................................................................................................................... 21
4.1.3 DETAILS OF POWER ON SEQUENCE ............................................................................................. 22
4.2 DIAGNOSIS FLOWCHART OF FAILURE ANALYSIS.............................................................................. 26
4.2.1 VIDEO SYSTEM ................................................................................................................................. 26
4.2.2 AUDIO SYSTEM ................................................................................................................................. 27
4.3 DIAGNOSIS OF SD (SHUTDOWN) ......................................................................................................... 30
4.3.1 SD (SHUTDOWN) DIAGNOSIS.......................................................................................................... 30
4.4 NON-FAILURE INFORMATION ............................................................................................................... 31
4.4.1 INFORMATION ON SYMPTOMS THAT DO NOT CONSTITUTE FAILURE....................................... 31
4.5 OUTLINE OF THE OPERATION.............................................................................................................. 35
4.5.1 SPECIFICATION OF THE FAN CONTROL ........................................................................................ 35
5. SERVICE FACTORY MODE........................................................................................................................... 36
5.1 OUTLINE OF THE SERVICE FACTORY MODE...................................................................................... 36
5.1.1 REMOTE CONTROL CODE IN SERVICE FACTORY MODE ............................................................ 36
5.1.2 INDICATIONS IN SERVICE FACTORY MODE................................................................................... 37
5.2 DETAILS OF FACTORY MENU................................................................................................................ 38
5.2.1 INFORMATION ................................................................................................................................... 38
5.2.2 OPTION .............................................................................................................................................. 41
6. EACH SETTING AND ADJUSTMENT............................................................................................................ 42
6.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED...................................... 42
7. RS-232C ......................................................................................................................................................... 43
7.1 LIST OF RS-232C COMMANDS.............................................................................................................. 43
7.2 DETAILS OF EACH COMMANDS ........................................................................................................... 44
7.2.1 QSE (DESTINATION PECULIAR INFORMATION)............................................................................. 44
7.2.2 QNG (SHUTDOWN INFORMATION OF MTB) ................................................................................... 45
8. GENERAL INFORMATION............................................................................................................................. 47
8.1 DISPLAY METHOD OF SIGNAL LEVEL,QUALTY,AND BER INFORMATION SCREEN ........................ 47
9. SCHEMATIC DIAGRAM ................................................................................................................................. 48
9.1 MAIN ASSY (1/20) [BOARD IF0 BLOCK] ................................................................................................ 48
9.2 MAIN ASSY (2/20) [BOARD IF1 BLOCK] ................................................................................................ 50
9.3 MAIN ASSY (3/20) [POWER 0 BLOCK]................................................................................................... 52
9.4 MAIN ASSY (4/20) [POWER 1 BLOCK]................................................................................................... 54
9.5 MAIN ASSY (5/20) [POWER 2 BLOCK]................................................................................................... 56
9.6 MAIN ASSY (6/20) [AV SW BLOCK]........................................................................................................ 58
9.7 MAIN ASSY (7/20) [RGB SW BLOCK]..................................................................................................... 60
9.8 MAIN ASSY (8/20) [VDEC BLOCK] ......................................................................................................... 62
9.9 MAIN ASSY (9/20) [ADC BLOCK]............................................................................................................ 64
9.10 MAIN ASSY (10/20) [HDMI SW BLOCK] ............................................................................................... 66
9.11 MAIN ASSY (11/20) [HDMI BLOCK]...................................................................................................... 68
9.12 MAIN ASSY (12/20) [TUNER BLOCK]................................................................................................... 70
9.13 MAIN ASSY (13/20) [VBI SLICER BLOCK] ........................................................................................... 72
9.14 MAIN ASSY (14/20) [USB BLOCK]........................................................................................................ 74
9.15 MAIN ASSY (15/20) [ARIA 0 BLOCK].................................................................................................... 76
9.16 MAIN ASSY (16/20) [ARIA 1 BLOCK].................................................................................................... 78
9.17 MAIN ASSY (17/20) [ARIA MEMORY BLOCK]......................................................................................80
9.18 MAIN ASSY (18/20) [IF UCOM BLOCK]................................................................................................ 82
9.19 MAIN ASSY (19/20) [EMMA2 BLOCK] .................................................................................................. 84
9.20 MAIN ASSY (20/20) [EMMA2 MEMORY BLOCK] ................................................................................. 86
9.21 TANSHI ASSY (1/4) [BOARD IF BLOCK] .............................................................................................. 88
9.22 TANSHI ASSY (2/4) [IO_1 BLOCK]........................................................................................................ 90
9.23 TANSHI ASSY (3/4) [IO_2 BLOCK]........................................................................................................ 92
9.24 TANSHI ASSY (4/4) [MSP BLOCK]........................................................................................................ 94
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