Question about Apex Digital GB4308 43" Rear Projection EDTV-Ready Television

Apex model#GB4308 I geta 6 inch wide line in the middle of tv at intermittent times sometimes all day I will get it,other only at night etc,,I can afford a new one I am disabled with low income Please Help!

Anonymous Nov 20, 2007

I have the same problem with the Horizontal.

1 Answer

William Rayburn

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934 Answers

If you mean a horizontal line going left to right across the center of the screen and it's intermittent then a tech should be able to fix that one on a service call fairly easy... The vertical IC in that unit, IC N301, is a TDA8351 and it most likely has some poor solder connections due to heat stress - we call ring cracked - thus the problem sometimes corrects itself temporarily. While he's coming out anyway ask him ahead of time to bring the following: Two resistors 1.0 ohm 2 watt and a cap 3300 microferet 25 volts and his DMM & ESR meter. Ask him to ESR test C863 this is a high failure cap and test R370 & R371 in the supply for change in value. Shouldn't be too much to repair - and simply ask ahead of time what they charge for a service call, and if they think they can correct such a problem (ring cracks on the solder connections of your vertical IC) on-site. If you're not too sure where to begin your research for a qualified shop try NESDA at: http://www.nesda.com/locator/state_search.php Good Luck Bill

Posted on Jun 13, 2007

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This is not my main field of expertise, in any case here is the link for a solution to same problem and same model. According to expert the problem is related to vertical chip fault.

http://www.fixya.com/support/t142256-apex_gb4308_multi_colored_horizontal_bow

hope it may help you

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