[jhalphen]

Hi David,

From Page 24 - D Board adjustments in the KV-4000 Service Manual which you kindly gave to me there is a section on changing the value of C531 to change the horizontal width - see enlarged page snapshot.

C values to be tried go from 0.0022 for the narrowest width to 0.0082 for the widest.

I would first replace the existing cap by a same value new one just in case the original was bad.

If no change, then try a 0.0022.

Does the H width reduce?

Problem solved?

Note:
You say that the TV was receiving OTA NTSC on Channel 12 from its own tuner. Did the TV show the problem directly off-air?

Question: is the DVR recording the same signal in parallel with the KV-4000 from it's own off-air tuner and you then use it as a frame-by-frame replay device.

or is the DVR fed from the KV-4000's VHF tuner using the Video Out connection?

Best Regards

jhalphen
Paris/France