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? > -- > **************************************************************************** *************************************** > Since 1972 > Jim Myers > Telrad Electronics > Fort Wayne, Indiana > > -------------------------------------------------------------------------- --- > Lost Password: > http://www.tech-assist.org and select "Login Problems?". > Email Archives: > //www.freelists.org/archives/techassist/ ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/