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Sharp 29ANl (A) the right of the TV screen without grating on the left is normal. Transfer of bright and dark edges neat. The image is part of a vertical cut. Being "cut" some small irregular when lar

Time£º2014-05-18 07:38:19  Source£ºNetwork  Author£ºUnknown  Clicks£º1333
  
7H3service manual download site

    AFC waveform due to correct description of pulse waveform line ¢ß pin output becomes normal , the problem lies between the C657 to D617 components have been checked . Because the pulse bottom level is elevated, and because of the negative termination 12V D615 , D615 reverse leakage therefore suspect that the negative side 12V voltage through D615 reach positive terminal. Remove the D615 measure its reverse unstable leakage, replacement 1N4148 diode , troubleshooting.7H3service manual download site