[TechAssist] Re: Samsung Model SP431JX chassis APT51B convergence
- From: becyn <becyn@xxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 26 Nov 2004 16:29:04 -0500
Alvin,
Did you go into convergence by pressing mute-1-8-3 ??
This is the sub-convergence sercvice mode. You can drag and drop lines
in this mode.
Be sure to get your meter stick out and follow the positioning info on
page 5-9.
I know the manual is badly written and organized, but if you take a few
minutes to COMPLETLY
read though the convergence adjustment section before you "go back in",
you will find the insights needed. The magnets (if they are even there
-missing in some models) probably didn't need to be touched unless
someone moved them since the factory alignment.
There are some very competent folks at Samsung tech, but others
are...well...a little less competent. Anytime you call any factory tech
line, it's just the luck of the draw. If the advice doesn't help or make
sense, just reject it and dig a little harder fior the truth. If all
else fails, call back and get a different opinion!
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 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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>
>
>
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