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VS-190i h-size / pincushion / trapezoid

April 13 2005 at 1:39 PM
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Hi ,

I have this VS-190i monitor, and not changes happen when playing with the h-size/pincushion/trapezoid settings. This monitor carries a TDA4856 chip , which seems to be working fine , i get waves at the EWB pin (pin 11) and all other voltage seem there.

What should i try next? I have looked for the schematic , but can't find it. I read on this forum that someone got it off the fcc website, but i can't seem to find it on my own. The picture is missing 2-3 inches on both left and right side. Should i change the ic directly? Or should i test specific transistors around that ic?

Please give me an input on what to do next, or if a certain pin should have a certain voltage.

Thanx

Roamin.

 
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