Question about Sharp 25R-S100 25" TV
Picture goes black with only horizontal blue line along middle of screen. picture will come back on by tapping on top or side of cover. is this loose connection with solder fix or does an electronic board have to be replaced? Sound not affected during picture blackouts. picture good quality when on.
The intermittent horizontal line is cause by a loose solder connection in the vertical amplifier IC.
The IC is mounted on a heatsink nearby or around the flyback transformer.
The way to fix this failure is to add fresh solder where you see some brown spots on the circuitry that were cause by components getting hot.
Posted on Jun 20, 2008
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Posted on Jan 02, 2017
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