Sharp 4T-C60AH1X - No video in the UHF;VHF reception; UHF;VHF No Video Troubleshooting; With <Video> signal input; External Video Input No Video Troubleshooting

4T-C6070AH1X
6 – 2
With[RF]signalinput Novideo onscreen (1)
NovideointheUHF/VHF reception
IsthereIFoutputfromthe tunerpin(6,7,8,9)ofTU1101as
specified?

NO Check TU1101 andits peripheralcircuits.
YES
.1033CI&1011UTneewtebtiucricehtkcehCON
YES
NO
YES
Check LVDScable,LCDcontroller (incl. panel)andtheirperiph-
eralcircuits.
With<Video>signalinput Novideo onscreen(2)
IsINPUT electedontheinputselectmenuscreen? NO
YES
Istherethevideosignalinput atpin(33)ofIC3301? NO Checkthelinebetweenpin(8) ofJ502andpin(33)ofIC3301.
YES
NO CheckIC3301anditsperipheralcircuitstoSC3801
YES
Check LVDScable,LCDcontroller (incl. panel)andtheirperiph-
eralcircuits.
Aretherethesignaloutputspin(137-146),Pin(149-154),
Pin(156-157)
Aretherethesignaloutputs(pinofIC3301toSC3801)?
IsthereIFinputatpin60&61ofIC3301?
Pin(137-146),Pin(149-154),Pin(156,157)
CheckIC3301anditsperipheralcircuittoSC3801
Noexternalinputvideoonscreen<INPUT3>
3s
SelectINPUT3ontheinputselectmenuscreentopick
uptherightinputsignal.