[TechAssist] Re: av48wp30 red convergance problem
- From: D Trippel <dtrippel@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 08 Jan 2005 15:17:58 -0800
Hello!
R842 and R843 are good . I swapped ic804 for ic805 assuming the blue would
bow,but the red is
still severely bowed on the right side of the screen, while the green and blue
are straight.
Any ideas? thanks
Don
Intrepid Video Support wrote:
> Don,
> >From JVC site:
> Symptoms:Unit's red convergence is skewed left, image is unclear.
> Cause:Defective red convergence STK on the convergence board. My unit also
> had burnt R842
> and R843 on the convergence board.
> Cure:Replace the STK IC5804-05, R842 and R843, and my unit also had a bad red
> CRT which I
> believe caused this IC and resistors to blow. (After changing the IC and
> resistors, the
> heatsink got very hot, so changing the red CRT fixed that problem.)
> Jeff
> --
> Intrepid Video TV/VCR Repair
> 263 S Front St, Steelton PA 17113
> 717-939-7708; (F) 717-564-4952
> www.intrepid-video.com www.tech-repair.net
> ----- Original Message -----
> From: "D Trippel" <dtrippel@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, January 07, 2005 8:06 PM
> Subject: [TechAssist] av48wp30 red convergance problem
>
> Hello everyone!
>
> I received an jvc av48wp30 tv in today, the set has been in another
> shop. It looks like they replaced ic804 and ic805. Both are
> (stk392-110). The red convergence is way off. Am I in for a big headache
> or is there another component that tends to fail in these sets. I
> checked all resistors on the convergence board and all appear to be
> fine. Any help would be appreciated. Thanks!
>
> Don Trippel
> Don's Electronics
> Rosthern,Sask
> Canada
>
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