[TechAssist] Re: Hitachi Model 50UX58B green convergence
- From: "markbrock" <markbrock@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 2 Sep 2004 13:05:30 -0500
Jim, just a thought, but those stk's are no more than an audio amp. there
easy to over drive and cause distortion where ever they want, the static
convergence may be out of whack enough that its over driving those amps,
you may have to do a static convergence first and get it closer than it is
so the stks don't have to work so hard ? Im not a Hitachi pro so take this
in text only, on Toshiba's you pull the convergence yokes, put a string
from corner to corner and get the center dot as close to the center as you
can with the magnetic rings, then plug em back in, and do a dynamic
convergence, it ain't no quick thing,
brock
----- Original Message -----
From: "Jim Shupe" <jim@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, September 01, 2004 3:01 PM
Subject: [TechAssist] Hitachi Model 50UX58B green convergence
> Hi All....
>
>
> I have a 50UX58B that came to me with just the lower
> right corner out of convergence. I changed the STK and
> one resistor that had increased in value...but no
> help.
>
> The green also looks thick and out of focus at that
> corner, and appears to have hysterisis around the
> corner point: that is, when I adjust the line(H or V)
> toward alignment, it approaches, then will swing too
> far past correct position.
>
> The degree of distortion appears to be related to
> screen content as well...it moves in and out of the
> corner with scene changes, etc.
>
> Has any one seen this or anything similar with this
> set?
> I talked to Hitachi and the tech said "sorry... no
> silver bullet here."
>
>
> TIA
> Jim Shupe, CET
> Yucca Valley, CA
>
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