Panasonic TH50PHW5, TH-50PHD5, TH-42PHD5, TH-42PHW5 manual Video Signal Path Explanation, HY/HZ Board

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Video Signal Path Explanation

HY/HZ Board

Figure 13

The "HY/ HZ" board is equipped with one Component input, one Composite input and one S-Video input. The Composite and S-Video inputs are applied to a switching circuit, which is controlled by the system control IC, located on the D1- Board. The switch select command is sent via the SCL3 and SDA3 lines. After signal selection the composite or S-Video signals are amplified, buffered, and applied to a 3D comb filter inside IC3803. The 3D Comb filter converts the Composite input signals to Y, Pb, and Pr component signals. The output of IC3804 is applied to the D1 Board via pins 1, 3, and 5 of the connector H2/D2.

Individual amplifiers buffered the Component input signals that are then applied to the D1-Board via pins 15, 17, and 19 of the connector H2/D2. Vertical and Horizontal Sync signals are also amplified on this board before they are applied to the D1 Board.

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Contents Panasonic Services Company National Training Troubleshooting GuidePage Page Error! Bookmark not defined Objective Model Line Up HD Plasma Display HD Panel Digital Cinema RealitySpecifications Panasonic Company PI Company F/HFeatures HD High-Definition panelProtection New frontModel Differences Single Scan SD Disassembly Rear Cover RemovalSC2 SC4 HD PCB Board Layout Diagram Printed Circuit Board Information TablePCB Board Layout Diagram TXNP110MHSSD PCB Layout Diagram Video Signal Path Explanation HY/HZ BoardHX Board D1 Board DVI Interface Page Component Video Input mode Sync AV/RGB/PC Input Mode SyncSync Process IC3001 Video Switch D1 BoardD1 Main ICs Operation IC9007 A/D ConverterD2 Board D2 Board details SC Board Explanation Page Page SS Board Explanation Page Page Power Supplies Standby Power SupplyMain Power Supply Power Factor ControlLow Voltage Power supply Voltage RegulationHigh Voltage Power Supply Page Protection Circuits Page Diagnostic Procedures Self Check Display IndicationPower LED Flashing timing chart Diagnostic Flow Charts No PowerPower 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 Service Hints Local screen failurePage Page Page Page Page Panasonic Screen Saver Feature After Image PreventionSide Bar Brightness adjustment Option Setting Accessing the Option MenuOption menus Default setting Contents Hidden Option Menu for GPH5D seriesPage 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 PDP Defect Pixel Specification Check ZoneConnector Tables Board ConnectorsBoard Connectors OUT Board Connectors HX- Board Connectors HY / HZ- Board Connectors Adjustment Procedures Panel label InformationAdjustments Adjustment table+B Set-up Driver Set-up Item / PreparationInitialization Pulse Adjust Adjustment Volume Locations B. Printed Circuit Board exchange procedureQuick adjustment after P.C.B. exchange Test Point locations Serviceman mode CAT computer aided test ModeHow to access the CAT mode I2C ModeCD mode Memory data changeSD Mode OSDI2C Menu Structure Alignment Procedures Pedestal SettingNtsc 480i White Balance Adjustment 480p White Balance Adjustment 720p White Balance Adjustment 1080i White Balance Adjustment Sub Brightness Setting Service Contact Information Non -authorized limited time

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TH-50PHD5, TH-42PHD5, TH50PHW5, TH-42PHW5 specifications

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