[TechAssist] Re: Samsung Syncmaster 950b Monitor dark lines just below center and bottom foldover FIX and capacitor question.
- From: "becyn" <becyn@xxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 27 Apr 2004 13:33:26 -0400
Breaking down at a lower than stated vothage?
Try putting it on a bench supply in series with a large value resistor and
crank it up to 60V.
See if you get a drop across the resistor at the higher setting.
Other than that, I don't know what to tell ya...
Jim McVey
McVey Alltronix
327 Broadway
Newburgh Ny 12550
ph: 845 561 8383
fx: 845 561 9017
Consumer electronics &
computer service.
Factory authorized for
over twenty brands.
----- Original Message -----
From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
To: "TechAssist" <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, April 27, 2004 11:39 AM
Subject: [TechAssist] Samsung Syncmaster 950b Monitor dark lines just below
center and bottom foldover FIX and capacitor question.
> I replaced C307, a 1UF/63V orange drop capacitor to fix the problem. The
> question is what is wrong with the capacitor? I used a .47UF/63V orange
> drop cap to fix it since I did not have a 1UF and the picture is perfect
> so the value is not critical. The original cap reads .9XX UF, about 5.8
> ESR ohms, infinity ohms leakage. In circuit there is -13 VDC on one lead
> and a normal 55 VP-P vertical output signal on the other lead with very
> little DC offset. The .47UF that I used to fix it reads .46X UF, about
> 3.0 ESR ohms, Infinity ohms leakage. So what the heck is wrong with the
> original 1UF cap?
> --
>
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> Since 1972
> Jim Myers
> Telrad Electronics
> Fort Wayne, Indiana
>
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