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Equipment Repairs => LCD TV forum => Topic started by: P.R.Gore on July 12, 2011,01:23:39

Title: Sony LCD -ve picture
Post by: P.R.Gore on July 12, 2011,01:23:39

In Sony LCD Model No KLV32V400A picture becomes -ve after few minutes. OSD remains always normal.A photo of this defect is attached. Can anybody provide me solution?

Title: Re: Sony LCD -ve picture
Post by: Keith on July 12, 2011,04:11:48

Hi,

I have had similar problems with other brands, and it turned out to be the TCON board.

Hope that helps

Keith

Title: Re: Sony LCD -ve picture
Post by: Turnip on July 12, 2011,12:47:56

Hi P.R.G,

if your LVDS is Sharp CPWBN-RUNTK-4024TP - have got one from a screen smash - Chris.

Title: Re: Sony LCD -ve picture
Post by: P.R.Gore on July 13, 2011,06:59:35

Thanks Keith & Turnip for ur reply. I shall look for exact type TCON board. Is repairs of TCON bord possible?
Regards
P R G

Title: Re: Sony LCD -ve picture
Post by: Turnip on July 14, 2011,12:24:53

Hi PRG,

Had something similar on a 26 Bush (Vestel) where I took in apart to find part numbers, Tried "Quuq parts required" - got no replies - reassembled set - then found pic OK.

Suspect in my case it was connections - all the best - Chris.

Title: Re: Sony LCD -ve picture
Post by: P.R.Gore on August 11, 2011,07:39:48

Hi,
One of my friends send me Tcon IC on T-Con board, which I replaced. Now original problem is gone, but there is excess brightness on picture. Hence black portion on picture can not be seen black but it becomes whitish -ve.
Any solution?
P R Gore