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problem dark picture samsung chassis s15a

 
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andry09
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PostPosted: Mon Aug 19, 2013 7:27 pm    Post subject: problem dark picture samsung chassis s15a Reply with quote

hi i have a problem in a tv samsung chassis s 15a
a picture is dark , i already change IC TDA 8842 but the probleme is' the same
please if anyone have an edea help me
thanks
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jts1957



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PostPosted: Tue Aug 20, 2013 2:29 am    Post subject: Reply with quote

Other than 'dark' is picture normal? Fills screen, has color, video is correct for channel or source selected?
What does turning up G2 (screen) do?
EEPROMS can become corrupt. Power supplies can fail. etc.
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Andy09
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PostPosted: Thu Aug 22, 2013 7:10 am    Post subject: Reply with quote

Hi,

The picture is not normal, you can't see the image clearly, there is color, channel and source selected work correctly and the sound is good.
If there is no signal on the TV the menu displays clearly.

You mentioned "What does turning up G2 (screen) do?" , i do'nt know what is it may i have some explanation on the G2?
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jts1957



Joined: 24 Nov 2008
Posts: 2476
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PostPosted: Thu Aug 22, 2013 7:45 am    Post subject: Reply with quote

Adjust the Screen VR (on the FBT) clockwise a very TINY amount and see if picture &/or brightness is improved.
You say menu displays clearly with NO SIGNAL. What about with signal? When you say menu, are you talking about the customer picture adjustments, etc. OR just the on screen volume, channel/display? Does it display normally?
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andry09
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PostPosted: Fri Aug 23, 2013 7:54 am    Post subject: Reply with quote

("Adjust the Screen VR (on the FBT) clockwise a very TINY amount and see if picture &/or brightness is improved.") I've done that the image become white you can't see any image .

"You say menu displays clearly with NO SIGNAL. What about with signal? When you say menu, are you talking about the customer picture adjustments, etc. OR just the on screen volume, channel/display? Does it display normally?" Yes , the menu still display clearly, i adjust brightness or colour or contrast i can see a change in the state of the picture but it remains too bad .[/b]
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