[TechAssist] Re: av48wp30 red convergance problem
- From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 7 Jan 2005 23:01:22 -0500
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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