Mulja tv repair portal
Equipment Repairs => LCD TV forum => Topic started by: tom66 on August 04, 2012,14:36:32
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Got this set in to fix, the backlight turns on and off, but the TV never has a picture or sound.
Have eliminated PSU, inverter, and T-con. DVB suspected okay.
So that leaves the main board... Everything on it checks okay. Scoped the EEPROM and find it makes a flurry of reads or writes to it just before it shuts down, so I suspect something somewhere is corrupt and it is crashing.
If I jumper the crystal for SUB-MICOM the TV will crash and will show some noise on the LCD for a couple more seconds.
If anyone has a source for the main board, or some more things to test...