Question about Apex Digital GB5108 51" Rear Projection EDTV-Ready Television

Three colored lines across the middle...

I have a Apex GB5108 that has nothing but the three colored lines across the middle of the screen. The set does not have sound and the control buttons dont work (except the menu). I'm no expert but it seems like it must be a power supply problem? Any advice would be greatly appreciated!

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Sounds like the vertical control IC has gone out. Replace IC N301 (TDA8351) and check or replace R370 (1ohm), R371(33ohm), and R380(1ohm). This shouldn't affect the sound but once you get video you might figure out what is wrong with the sound (control setting). The TDA8351 crosses to NTE7156 and shouldn't run you more than $10.

Posted on Sep 30, 2007

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