Panasonic gph5d th-42phd5 th-50phd5 th-42phw5 th50phw5 troubleshooting guide User Manuals

Table of Contents

• Objective

  5
• 2002 Model Line Up

  6
• Specifications

  7
• Features

  8
• New Asymmetrical Cell Structure Panel

  9
• Model Differences

  9
• Disassembly

  11
• Rear Cover Removal

  11
• 42” HD PCB Board Layout Diagram

  13
• Printed Circuit Board Information Table

  13
• 50” PCB Board Layout Diagram

  14
• 42” SD PCB Layout Diagram

  15
• Video Signal Path Explanation

  16
• HY/HZ Board

  16
• HX Board

  17
• D1 Board

  18
• DVI Interface

  19
• Sync Process

  21
• RGB/PC Input Mode Sync

  21
• Composite/ Component Video Input mode Sync

  21
• D1 Board

  22
• D1 Main ICs Operation

  22
• D2 Board

  23
• D2 Board details

  24
• SC Board Explanation

  25
• SS Board Explanation

  28
• Power Supplies

  31
• Standby Power Supply

  31
• Main Power Supply

  32
• Power Factor Control

  32
• Low Voltage Power supply

  33
• Voltage Regulation

  33
• High Voltage Power Supply

  34
• Protection Circuits

  36
• Diagnostic Procedures

  38
• Self Check Display Indication

  38
• Power LED Flashing timing chart

  39
• Diagnostic Flow Charts

  40
• No Power

  40
• The Power LED is red and blinking on/off

  41
• Power LED blinks twice

  42
• No Picture Flowchart 1

  43
• No picture Flowchart 2

  44
• Dark picture Flowchart

  45
• Local screen failure

  46
• Service Hints

  46
• After Image Prevention

  53
• Screen Saver Feature

  53
• Side Bar Brightness adjustment

  54
• Option Setting

  55
• Accessing the Option Menu

  55
• Hidden Option Menu for GPH5D series

  56
• Sample Waveforms

  58
• HY/HZ board

  58
• HX board

  61
• SC Board Input Signals

  63
• SC Board Waveforms

  64
• SS-Board Input Signals

  66
• SS Board Waveforms

  67
• PDP Defect Pixel Specification

  68
• Connector Tables

  69
• F-BOARD CONNECTORS

  69
• P-BOARD CONNECTORS

  69
• HX- BOARD CONNECTORS

  73
• HY / HZ- BOARD CONNECTORS

  74
• Adjustment Procedures

  75
• Panel label Information

  75
• +B Set-up

  76
• Confirmation

  76
• Driver Set-up

  77
• Initialization Pulse Adjust

  78
• P.C.B. (Printed Circuit Board) exchange procedure

  79
• Adjustment Volume Locations

  79
• Test Point locations

  80
• Serviceman mode

  81
• CAT (computer aided test) Mode

  81
• I2C Mode

  81
• CD mode

  82
• SD Mode

  83
• I2C Menu Structure

  84
• Alignment Procedures

  85
• NTSC Panel White Balance

  85
• Pedestal Setting

  86
• PC/RGB Panel White Balance

  87
• HD /525i /525P Panel White Balance

  89
• 625i Panel White Balance

  91
• Sub Brightness Setting

  92