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LG du-42px12x no picture or sound just white screen
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circusdevil
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PostPosted: Wed Aug 20, 2008 1:33 am    Post subject: LG du-42px12x no picture or sound just white screen Reply with quote

Can someone help me please? I have an LG du-42px12x plasma and all i get is a white screen with no sound. Any suggestions? And also do you know where to get an ysus board for this. Part # 6870QYH002P printed on the board or the sticker # 6871QYH051P. Thank you
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Justmanuals



Joined: 21 Aug 2004
Posts: 1949

PostPosted: Wed Aug 20, 2008 3:16 am    Post subject: Reply with quote

This Parts & Service manual can now be purchased for $9.99 and downloaded immediately after payment from http://www.justmanuals.com


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circusdevil
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PostPosted: Thu Aug 21, 2008 12:23 am    Post subject: Reply with quote

I need more info than that. How do I know the manuals are what I need?
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Thu Aug 21, 2008 8:28 pm    Post subject: Reply with quote

White picture, no sound. 2 problems. Digital main board does all the video/audio processing. I say digital main. The reason for the service manual is to be able to trace paths and block diagrams.
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circusdevil
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PostPosted: Thu Aug 21, 2008 10:57 pm    Post subject: Reply with quote

How sure are you on that? Any other suggestions would be nice. Thank you
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Thu Aug 21, 2008 11:16 pm    Post subject: Reply with quote

With the back off there should be a sticker that gives you the VS and VA voltages. If you look at the sustain boards you should see vs and va labeled on some of the plugs. Check these voltages.
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circusdevil
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PostPosted: Thu Aug 28, 2008 8:39 pm    Post subject: repair question Reply with quote

I have sound but no picture. Well the picture is snowy red and goes to standby or off in a second. i just replaced the ysus. For the voltages where do you check those at? thank you for any help.
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circusdevil
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PostPosted: Thu Aug 28, 2008 9:13 pm    Post subject: Reply with quote

All the voltages are good. Anything else? Thank you for the help
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Thu Aug 28, 2008 9:30 pm    Post subject: Reply with quote

White picture, replaced y sustain. Red sparkles and shuts down sounds like a bad panel. Crying or Very sad
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circusdevil
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PostPosted: Thu Aug 28, 2008 10:15 pm    Post subject: Reply with quote

um, red snowy picture. You mean its dead
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