Tv turns on but takes about 20 minutes to show the picture
I turn the tv on and the sound works but the picture doesnt come up for about 20 minutes..then after that it comes on but when you turn the channel it takes like 3 minutes to bring the picture up again..
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This problems very common with sharp tv.The Main Turner Signal board have problems.Keep using it,when it stop and completely dead 20-30 on-off no backlight show up and picture.U know ur Tuner board signal board is dead, have to replaced it.
There is a firmware that can be updated via usb from philips. This fw was used to correct the tv powering on with no picture randomly (they called it a maintence session) but it was a problem. The tv would power on on its own and do this..
If that doesnt take care of your problem then the problem is with the main control board. or ssb