4 Troubleshooting4-4X400 oscillate properly?4-3 No Video (DIGITAL LS19PEB)1 Replace or check related circuit.Check signal cable connection andpower.YesNoIs there R, G, B input atR100, R101, R102, R103,R104 and R105?Check input part.YesNoIs there waveformat R106, R107?Check input part.NoYesDoes the output signalappear at Pin 17~20, 22~27of CN400?Check IC400 and related circuit.NoYesThere are DC 5V at Pin 28,29 and 30 of CN400?Check the PANEL_EN signal at R222and BL_EN signal at R603.NoYesReplace LCD Panel.76 64 5* All locations of this page includes Main PBA.Downloaded from www.Manualslib.com manuals search engine
