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lines & whistle

 
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nuch



Joined: 06 May 2008
Posts: 2
Location: Montreal

PostPosted: Tue May 06, 2008 1:20 pm    Post subject: lines & whistle Reply with quote

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: 2877
Location: Hell

PostPosted: Tue May 06, 2008 11:26 pm    Post subject: Reply with quote

Sounds like the vertical IC crapped out. Replace IC 451 LA78045. Also check R481/482 1 ohm 1/2 watt. Also replace C454 [email protected]
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nuch



Joined: 06 May 2008
Posts: 2
Location: Montreal

PostPosted: Wed May 07, 2008 11:55 am    Post subject: Reply with quote

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: 2877
Location: Hell

PostPosted: Wed May 07, 2008 4:29 pm    Post subject: Reply with quote

Can you post a pic?
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gary



Joined: 05 Apr 2005
Posts: 584
Location: MANCHESTER, uk

PostPosted: Thu May 08, 2008 7:58 am    Post subject: Reply with quote

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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