Panasonic TH-42PHW5 B. Printed Circuit Board exchange procedure, Adjustment Volume Locations

Page 79

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

1. Caution

Wait 1 minute for the electrolytic capacitors to discharge before removing any PCB from the unit.

2. Quick adjustment after P.C.B. exchange

P.C.B.

Item

Volume

Test point

Level

P Board

PFC

R548 (P3)

P20 connector pins 1

400V ± 1V

 

 

 

and 2

 

 

Vsus

R625 (P3)

TPVsus (SS)

Vsus ± 1V*

 

Vda

R545 (P1)

TPVDA (SS Board)

74V ± 1V

SC Board

Vad

R6477 (SC)

TPVAD (SC)

Vad ± 1V*

 

Vbk

R6670 (SC)

TPVBK (SC)

Vbk ± 5V*

SS Board

Ve

R6770 (SS)

TPVE (SS)

Ve ± 1V*

D1, D2 Board

White Balance and Sub brightness for NTSC, 480p, 720p and 1080i signals

*Refer to the Panel label for the exact value.

Adjustment Volume Locations

Figure 68

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Image 79
Contents Troubleshooting Guide Panasonic Services Company National TrainingPage Page Error! Bookmark not defined Objective HD Plasma Display HD Panel Digital Cinema Reality Model Line UpPanasonic Company PI Company F/H SpecificationsHD High-Definition panel FeaturesProtection New frontModel Differences Single Scan SD Rear Cover Removal DisassemblySC2 SC4 Printed Circuit Board Information Table HD PCB Board Layout DiagramTXNP110MHS PCB Board Layout DiagramSD PCB Layout Diagram HY/HZ Board Video Signal Path ExplanationHX Board D1 Board DVI Interface Page Component Video Input mode Sync AV/RGB/PC Input Mode SyncSync Process IC9007 A/D Converter IC3001 Video SwitchD1 Board D1 Main ICs OperationD2 Board D2 Board details SC Board Explanation Page Page SS Board Explanation Page Page Standby Power Supply Power SuppliesPower Factor Control Main Power SupplyVoltage Regulation Low Voltage Power supplyHigh Voltage Power Supply Page Protection Circuits Page Self Check Display Indication Diagnostic ProceduresPower LED Flashing timing chart No Power Diagnostic Flow ChartsPower LED is red and blinking on/off Power LED blinks twice No Picture Flowchart Are the video signals Correct at the D1 Board input? Dark picture Flowchart Local screen failure Service HintsPage Page Page Page Page Panasonic After Image Prevention Screen Saver FeatureSide Bar Brightness adjustment Accessing the Option Menu Option SettingHidden Option Menu for GPH5D series Option menus Default setting ContentsPage Sample Waveforms CN H2, Pin A8 CN H2, Pin A19 5ms /div 1ms/ div Page HX board Page SC Board Input Signals SC Board Waveforms CLK SS-Board Input Signals SS Board Waveforms Check Zone PDP Defect Pixel SpecificationBoard Connectors Connector TablesBoard Connectors OUT Board Connectors HX- Board Connectors HY / HZ- Board Connectors Panel label Information Adjustment ProceduresAdjustments Adjustment table+B Set-up Item / Preparation Driver Set-upInitialization Pulse Adjust Adjustment Volume Locations B. Printed Circuit Board exchange procedureQuick adjustment after P.C.B. exchange Test Point locations I2C Mode Serviceman modeCAT computer aided test Mode How to access the CAT modeMemory data change CD modeOSD SD ModeI2C Menu Structure Pedestal Setting Alignment ProceduresNtsc 480i White Balance Adjustment 480p White Balance Adjustment 720p White Balance Adjustment 1080i White Balance Adjustment Sub Brightness Setting Non -authorized limited time Service Contact Information
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TH-50PHD5, TH-42PHD5, TH50PHW5, TH-42PHW5 specifications

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