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joby201
Joined: 21 Sep 2009
Posts: 5
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 Posted: Thu Oct 22, 2009 8:21 pm Post subject: viewsonic n4060w lcd |
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| i have a viewsonic lcd tv that will not display a picture. the set turns on and the screen comes on and looks bright from an angle, but dark from straight on. from the back of the set, white light can be seen from holes in the frame. i cant get sound from the set either. i have already replaced the inverters and got the same result. could this be the input/main board?any ideas? thanks |
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minnie
Joined: 18 Aug 2005
Posts: 2880
Location: Hell
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| Posted: Thu Oct 22, 2009 9:22 pm Post subject: |
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| Have you opened the back and looked for bulged caps on the power supply or inverters? |
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joby201
Joined: 21 Sep 2009
Posts: 5
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| Posted: Thu Oct 22, 2009 9:35 pm Post subject: |
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| caps look good on both power supply and inverters... |
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minnie
Joined: 18 Aug 2005
Posts: 2880
Location: Hell
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| Posted: Thu Oct 22, 2009 10:34 pm Post subject: |
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| 12/24 volts going to the inverters? |
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joby201
Joined: 21 Sep 2009
Posts: 5
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| Posted: Thu Oct 22, 2009 11:11 pm Post subject: |
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| 5 leads on each side read 24v. 5 leads on each side dont register any voltage. 1 lead on each side reads ~2v. 1 lead on each side reads 5v. im guessing those 0v reads are wrong? i dont have a schematic |
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Guest
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| Posted: Fri Oct 23, 2009 2:10 am Post subject: |
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| ok the other 5 leads x2 are ground |
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minnie
Joined: 18 Aug 2005
Posts: 2880
Location: Hell
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| Posted: Fri Oct 23, 2009 11:14 pm Post subject: |
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| Bad digital main board. |
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