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circusdevil Guest
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Posted: Wed Aug 20, 2008 1:33 am Post subject: LG du-42px12x no picture or sound just white screen |
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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: 1948
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circusdevil Guest
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Posted: Thu Aug 21, 2008 12:23 am Post subject: |
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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: 2880 Location: Hell
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Posted: Thu Aug 21, 2008 8:28 pm Post subject: |
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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 Guest
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Posted: Thu Aug 21, 2008 10:57 pm Post subject: |
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How sure are you on that? Any other suggestions would be nice. Thank you |
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minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
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Posted: Thu Aug 21, 2008 11:16 pm Post subject: |
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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 Guest
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Posted: Thu Aug 28, 2008 8:39 pm Post subject: repair question |
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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 Guest
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Posted: Thu Aug 28, 2008 9:13 pm Post subject: |
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All the voltages are good. Anything else? Thank you for the help |
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minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
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Posted: Thu Aug 28, 2008 9:30 pm Post subject: |
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White picture, replaced y sustain. Red sparkles and shuts down sounds like a bad panel. |
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circusdevil Guest
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Posted: Thu Aug 28, 2008 10:15 pm Post subject: |
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um, red snowy picture. You mean its dead |
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