XG-V10XU - diagramas.diagram...

XG-V10XUTROUBLE SHOOTING T ABLE FOR PC I/F UNIT -9Checking the VIDEO inputFeed the composite videosignal to INPUT4 or INPUT 5.Using panel key or remotecontroller, select INPUT4 orINPUT5.5Select the VIDEO signal typeon user menu.Does image appear onscreen?NoYesIs the image free of distortion?NoCheck the VIDEO sync signal.YesCheck the VIDEO sync signal.Carry out the processadjustment.Are the colors as specified?NoYesNo problem with the VIDEOinput.5Measure the following outputs onoscilloscope screen: at pin (5)(R)of IC324, pin (3)(G) of IC326 andpin (5)(B) of IC326.Is the video signal levelbetween VRB and VRT?NoMeasure the output at pin (5) or(6) of IC323 on oscilloscopescreen.Yes» VRB: Bottom reference voltage at video ADC» VRT: Top reference voltage at video ADCIC310 or CVIC_IC defective.Is the clamp pulse asspecified?NoCheck the VIDEO sync signal.Yes» Checking the clamp pulseClamp level setting IC (IC316,IC327 or IC323) or itsperipherals defective.CVIC_IC or its peripheralsdefective.57