electronics_repair111
New Member
Hello,
I need help with troubleshooting a Vizio tv. Tv had a bad t-con board (processor and memory was burnt. Replaced t-con, when tv powered up the t-con's LED lit up blue then faded out while a screeching sound was emitted from the t-con. I didn't see a picture even when volume or menu button was pressed (back-light is on but no image at all). I disconnected the LCD panel (two ribbon cables) powered it on and it didn't make the screech sound. Is the LCD panel bad and overloading the t-con? Is there anyway to test the LCD panel? Any tips would be greatly appreciated.
I need help with troubleshooting a Vizio tv. Tv had a bad t-con board (processor and memory was burnt. Replaced t-con, when tv powered up the t-con's LED lit up blue then faded out while a screeching sound was emitted from the t-con. I didn't see a picture even when volume or menu button was pressed (back-light is on but no image at all). I disconnected the LCD panel (two ribbon cables) powered it on and it didn't make the screech sound. Is the LCD panel bad and overloading the t-con? Is there anyway to test the LCD panel? Any tips would be greatly appreciated.
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