Hello. Its been almost a month waiting for several pieces to come from ebay, several reworks made, and now i am at the point of giving up. But before i do, i need your honest opinions.
This LCD Tv was stricken by a lightning and was totally dead when came.
Main fuse blown.
Checked for short in the main capacitor, OK. replaced fuse and blown again. Rectifier faulty. Changed it and the fuse.
TV led was lit. 5V standby was ok.
PS_ON 3.3V but no 12/24V.
After many measurements decided to order the IC controller of this rail.
Replaced the IC and the mosfet. 12 and 24V now are OK.
TV working without backlight. Examined the 24pin IC of the backlight and found many shorts. Found also some traces of possible arc-ing between smd components (last pic).
I am ready to order this IC, but now i am very pessimistic.
I need some opinions.
Thank you.
This LCD Tv was stricken by a lightning and was totally dead when came.
Main fuse blown.
Checked for short in the main capacitor, OK. replaced fuse and blown again. Rectifier faulty. Changed it and the fuse.
TV led was lit. 5V standby was ok.
PS_ON 3.3V but no 12/24V.
After many measurements decided to order the IC controller of this rail.
Replaced the IC and the mosfet. 12 and 24V now are OK.
TV working without backlight. Examined the 24pin IC of the backlight and found many shorts. Found also some traces of possible arc-ing between smd components (last pic).
I am ready to order this IC, but now i am very pessimistic.
I need some opinions.
Thank you.
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