Question about RCA P52937 52" Rear Projection Television
Our tv has no picture but perfect sound. It has red, blue, green line(thin) across the screen about eight inches from the bottom of the screen.
That TV uses the PTK195 chassis, and the fact that you see only a thin line for each color near the bottom of the screen tells me your vertical output IC has stopped working, and is putting a small DC voltage across the yokes. I have seen this caused by a defective vertical output IC and I have also seen vertical problems caused by a small CRT coolant leak which drips onto the main board near the vertical output IC. If you do not have experience servicing the PTK195 chassis than have a qualified tech handle it for you.
Posted on Jul 13, 2007
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