COLOR TELEVISION RECEIVER - ePanorama.net
COLOR TELEVISION RECEIVER - ePanorama.net
COLOR TELEVISION RECEIVER - ePanorama.net
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Troubleshooting5-4 No SignalNo SignalAbnormalCheckeach tuner terminalvoltage.NormalCheck voltageline.AbnormalChecktuner SCL,SDAwaveform.NormalCheckMicom IC901.NormalChecktuner IF terminalwaveform.CheckIC201 Pins 7,8waveform.AbnormalReplace tuner.Check IC201 Pin 41waveform level.NormalNormal (2Vp-p)Checkwhether AGC andAFTadjustment are normal inthe service mode.AbnormalCheckIC201 Pin 43 waveformlevel.Normal (1Vp-p)AbnormalNormalCheckIC201 Pin 47waveform level.Readjust AGCand AFT.AbnormalCheckIC201 Pins 19,20, 21waveform level.Normal (3~5Vp-p)Check IC201Pin 37 waveformlevel.Normal (2Vp-p)Replace IC201.Check CRT PCB (180V)and heater Voltages.Normal (1Vp-p)5-4 Samsung Electronics
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