Question about Samsung TXM2756 27" TV
The Top of the raster has several vertical retrace lines not too annoying while the picture is broadcast in 4:3 but when the pix goes to 16:9 as many sources appear to be doing, the black area (vertical blanking??) contains these retrace lines as well as some compression of the entire sweep for about .375 inches.
I am not sure if there is any foldover or not of that area at the very top of the raster. The problem is slowly getting worse over several months but I fear that I am about to lose a capacitor or vertical o p driver soon. The set has a very good picture such that I would likke to fix this little glitch. I was a TV technician for over 20 years until 1993 and sams photofacts or other manuals were a phone call away. Any assistance you can offer me in terms of schematics or other advice would be appreciated.
I work with electronics, too, and I don't have the exact schematics, but I would say that you are on the right track with thinking the capacitor is going bad. What put onto that idea how you mentioned that it had gotten worse over time. I don't think that it's the veritcal driver.
Posted on Jan 25, 2008
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Posted on Jan 02, 2017
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