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johnpmt Guest
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Posted: Tue Dec 18, 2007 1:42 pm Post subject: TV partially black screen at startup |
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My 21" philips TV at home when switched on, starts with almost half of the screen (bottom half) blacked out. Then the black portion's height gradually reduces and after some hours i get to see a proper screen.
Please let me know that the problem could be.
Thanks
John. |
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gary
Joined: 05 Apr 2005 Posts: 584 Location: MANCHESTER, uk
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Posted: Tue Dec 18, 2007 5:22 pm Post subject: |
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REPLACE ELECTROLYTIC CAPACITORS IN FRAME STAGE, WITH AGE THE CAPS FALL IN VALUE. AS THEY WARM UP THE VALUE WILL INCREASE. |
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Pilsener
Joined: 18 Dec 2007 Posts: 8
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Posted: Tue Dec 18, 2007 6:12 pm Post subject: |
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Vertical output amplifier may also be faulty. Usually some TDAxxxx chip. Not very expensive thing. |
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Guest
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Posted: Sat Jan 19, 2008 9:31 am Post subject: |
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Thanks a lot guys. will check it up...
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