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

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Hello, I have an Apex GB5108 and it has a horizontal colored line going through the middle. What component could be bad and needing replacing? Thanks Tom

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I am not familiar with this particular set, but it sounds like you have no vertical deflection, which would mean your vertical output IC may be bad. The # on those ICs usually start with LA and is mounted to a heatsink.

Posted on Jul 30, 2009

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My apex gb5108 convergence lines wont line up.I'm watching 3d


possibly the convergance ics have failed or convergance module
soldercon or both not a very costly repair

Aug 25, 2009 | Apex Digital GB5108 51" Rear Projection...

1 Answer

Wavey lines apex 5108 projection tv


The problem can be the convergence board, or a problem with one faulty component on the main pcb.
Here you can find replacements, if you do not find your model in list call them at 1-866-925-PART (7278)

Sep 03, 2008 | Apex Digital GB5108 51" Rear Projection...

1 Answer

I have a apex GB5108 tv, the picture has become a red yellow and blue horizontal line in the middle of the tv. is it fixable


Thats vertical deflection failure . Check the solder on the vertical output IC and the Yoke plugs. If that doesnt help you may need a new Vertical IC

Jul 01, 2008 | Apex Digital Televison & Video

1 Answer

Colored lines in middle screen , from side to side


Not much of a description but it may be a convergence problem, these sets had lousy soldering on the convergence chips, un fortunately, if it goes long enough it will require chips and in my case , a resistor I cannot read the value of.

Mar 01, 2008 | Apex Digital GB5108 51" Rear Projection...

1 Answer

51 big screen apex tv, convergence or verticle IC?


If the lines are thin and close together running horizontally, it may be the vertical driver, but that usually takes out the resistor and sometimes the diode in the B+ for the vert. Also you must replace the caps that caused the problem in the first place.

Feb 05, 2008 | Apex Digital GB5108 51" Rear Projection...

1 Answer

GB5108 picture is collapsed to a blue line in the center


Go to Trinixsoft.com for complete manual. Cost 4.99 for download or 9.99 for shipped cd. I kinda have same problem but my exits with 3 red colors in bowtie form. I think mine is the TDA8351 or vertical control IC. Hope this helps.

Dec 10, 2007 | Apex Digital GB5108 51" Rear Projection...

1 Answer

Three colored lines across the middle...


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.

May 28, 2007 | Apex Digital GB5108 51" Rear Projection...

1 Answer

Apex gb4308 multi colored horizontal bow in middle or screen.


This is not an "STK" problem. Your problem is VERTICAL. You need to check your vertical chip for damage CN301 and check around it for any bad parts or loose connections. I've seen loose connections on the chip itself cause it to self-destruct.

Apr 11, 2007 | Apex Digital GB4308 43" Rear Projection...

1 Answer

APEX TV problems


need flyback transformer #030531-5283

Nov 05, 2006 | Apex Digital GB5108 51" Rear Projection...

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