Television has no picture

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.

sarahl66 Feb 24, 2008

Television has black screen with bright horizontal line across the middle of the screen, sound seems to be okay.
Anonymous Mar 31, 2014

remainder of picture ok remainder of picture ok

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398 Answers

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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