[TechAssist] Re: Samsung Model SP431JX chassis APT51B convergence
- From: Alvin Rose <ajroseca@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 25 Nov 2004 15:07:38 -0330
Hi Jim
The service adjustments will allign good with the setup on the front panel
buttons converge but only in the center of the screen..The sides are
out very bad.. and are not straight lines..before I replaced the green
amplifier module the green lines on the sides were moving left to right
as if there was a hum in the output..It was corrected with the stk391-020
replacement. also the main convergence module was overhauled by
samsung as they said this was the trouble...As you said..the service manual
leaves a lot to be desired for servicing and Samsung is no help at
all.on this
one..Set up is done with the magnets on the crts ..All of the 26 volt
supplys
to the convergence board check ok..This is a set that is very difficult
to get
off of the service bench.
Alvin Rose
Radio & Tv Centre
becyn wrote:
>You didn't mention anything about the SERVICE adjustments or if they
>responded? You can't fix those problems with the" customer
>convergence"!!!!!!!!!
>Projo modules are not even close to being 'plug 'n play", so don't
>expect that replacing that stuff is going to give you a finished result.
>Sounds like you've got a bit of work ahead of you...
>There are very specific line landing parameters which are in the very
>badly written adjustment manual. You may even want to get the screen
>overlay jig since you are starting with a fresh DCU.
>I hope you gave the custoner a "healthy" estimate!
>
>Jim McVey
>McVey Alltronix
>327 Broadway
>Newburgh N.Y. 12550
>
>Factory authorized
>service for over 20
>major brands.
>845 561 8383
>
>Alvin Rose wrote:
>
>
>
>>Hi Guys
>>we have a Samsung SP431JX chassis projection tv with poor
>>convergence..The convergence will setup ok in the center but is
>>off badly on both sides..also is bowed a lot in the bottom and
>>top corners..also remote will not go in to the setup mode with
>>mode 183..I have replaced the green convergence amplifier
>>IC STK391-020 and had the convergence module overhauled
>>by Samsung...Any suggestions or help would be appreciated
>>Alvin Rose
>>Radio & TV Centre
>>Marystown, NL.
>>
>>
>>
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