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gb5108 apex horizontal lines

 
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nowrob3



Joined: 10 Jul 2006
Posts: 1

PostPosted: Mon Jul 10, 2006 3:11 am    Post subject: gb5108 apex horizontal lines Reply with quote

i have had this apex gb5108 tv for serveral years, and just a few weeks ago all the color on the tv has become 1 horizontal wavy line. i can still heard sound. i have read serveral other places blame it on a semiconductor. what could it be? i dont kow where i would buy a semiconductor. any help i give thanks to.
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eltech64
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PostPosted: Thu Oct 05, 2006 2:18 pm    Post subject: Apex GB5108 Reply with quote

Sounds like you have a vertical failure. I'm assuming you mean the set set has 3 colored lines running horizontally across the screen which indicates a vertical circuit failure. The vertical IC is a semiconductor, however additional parts need to be checked. If you cannot locate this part on the chassis you may want to turn this over to a more experienced person.
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ServiceDude
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PostPosted: Wed Sep 05, 2007 7:22 pm    Post subject: Apex GB5108 Reply with quote

This a easy problem to fix. You say it has a thin line accross the center. Change out IC N301 it is a TDA8351 and it crosses to a NTE7156. Also change R370 it is a 1W/1 Ohm Oxide Metal Resistor
R371 it is a 1W/33 Ohm Oxide Metal Resistor and
R380 it is a 1W/1 Ohm Oxide Metal Resistor.

Be very careful not to short any pins on chip with solder when re-soldering, double check all solder joints for shorts and correct before turning set on. This should fix your problem with the vertical collapse.
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Thu Sep 06, 2007 4:04 am    Post subject: Reply with quote

In other words, your vertical IC crapped out.
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CHRISTIE N. CROCKER
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PostPosted: Fri Aug 01, 2008 5:33 pm    Post subject: Re: gb5108 apex horizontal lines Reply with quote

WOW! I AM HAVING THAT EXACT SAME PROBLEM... I WOULD LIKE TO KNOW THAT ANSWER TO THIS AS WELL.
nowrob3 wrote:
i have had this apex gb5108 tv for serveral years, and just a few weeks ago all the color on the tv has become 1 horizontal wavy line. i can still heard sound. i have read serveral other places blame it on a semiconductor. what could it be? i dont kow where i would buy a semiconductor. any help i give thanks to.
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Fri Aug 01, 2008 5:37 pm    Post subject: Re: gb5108 apex horizontal lines Reply with quote

CHRISTIE N. CROCKER wrote:
WOW! I AM HAVING THAT EXACT SAME PROBLEM... I WOULD LIKE TO KNOW THAT ANSWER TO THIS AS WELL.
nowrob3 wrote:
i have had this apex gb5108 tv for serveral years, and just a few weeks ago all the color on the tv has become 1 horizontal wavy line. i can still heard sound. i have read serveral other places blame it on a semiconductor. what could it be? i dont kow where i would buy a semiconductor. any help i give thanks to.


Look 3 posts above this and there's your answer.
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