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nuch
Joined: 06 May 2008 Posts: 2 Location: Montreal
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Posted: Tue May 06, 2008 1:20 pm Post subject: lines & whistle |
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Hi guy I having a problem with a panasonic CT32SX31 with fine line & a whistle across the whole sreen( not retrace lines)
Has anyone seen this problem.
thnks Nuch |
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minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
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Posted: Tue May 06, 2008 11:26 pm Post subject: |
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Sounds like the vertical IC crapped out. Replace IC 451 LA78045. Also check R481/482 1 ohm 1/2 watt. Also replace C454 220uf@50vdc. |
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nuch
Joined: 06 May 2008 Posts: 2 Location: Montreal
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Posted: Wed May 07, 2008 11:55 am Post subject: |
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Thanks Minnie The picture is there except for the lines, do you still think it's the verttcal ic.
Thanks Nuch |
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minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
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Posted: Wed May 07, 2008 4:29 pm Post subject: |
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Can you post a pic? |
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gary
Joined: 05 Apr 2005 Posts: 584 Location: MANCHESTER, uk
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Posted: Thu May 08, 2008 7:58 am Post subject: |
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i have had a similar fault on a 28" panasonic tv, it turned out to be a 470r resistor, R469, across the scan coils in the frame circuit, the resistor acts as a damper, the set was an alpha one chassis fitted in a tx28a1, uk set, may be a similar problem in yours. |
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