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TIT china TV is not working    
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ElEc_TrOn



Joined: 28 Apr 2009
Posts: 4
Location: SA

PostPosted: Tue Apr 28, 2009 10:24 am    Post subject: TIT china TV is not working Reply with quote

HI,

I have tit tv

yesterday, it was working and then it has turned off without any visible reason.

standby led is working but screen goes of immediately

see this video:

http://tinypic.com/player.php?v=wlrb14&s=5








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ElEc_TrOn



Joined: 28 Apr 2009
Posts: 4
Location: SA

PostPosted: Tue Apr 28, 2009 10:35 am    Post subject: Reply with quote

if the above video is not working see this:

http://electrical.net.googlepages.com/tit.wmv
JTS1957



Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away

PostPosted: Tue Apr 28, 2009 1:46 pm    Post subject: Pays to buy the best Reply with quote

The area between the yoke plug and ?vertical? output IC looks discolored in your photos. Check solder joints, especially in that area.
The video does indicate (white flash) that you do have high voltage while set tries to power up. (set's not set to an aux input, is it?)
ElEc_TrOn



Joined: 28 Apr 2009
Posts: 4
Location: SA

PostPosted: Tue Apr 28, 2009 10:23 pm    Post subject: Reply with quote

In the back of the mainboard there is circular area that has brown soldering points.

I will resolder them .

Thank you Smile
ElEc_TrOn



Joined: 28 Apr 2009
Posts: 4
Location: SA

PostPosted: Thu Apr 30, 2009 3:41 am    Post subject: Reply with quote

I re-soldered that area but still same problem

any idea?
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JTS1957



Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away

PostPosted: Thu Apr 30, 2009 6:59 am    Post subject: Reply with quote

Start by checking for dc voltages on secondaries (diodes) of the Switched Mode and the scan-derived power supplies.
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