Diagonal Lines on RF Output

[Mr.B&W]

Originally Posted by Ed in Tx

Sometimes one or more RF switching diodes or transistors that pass signal from the ANT-IN to the VCR tuner and select between Antenna and the VCR's 3-4 modulator when playing or recording, get zapped from a nearby lightning strike or somesuch. That can cause diagonal lines in the RF 3-4 output.

If all else fails I would think this would be the path to pursue.

Originally Posted by mrjukebox160

Look in the RF modulator for 1uf and .47uf electrolytic caps. They were notorious for failing and causing that.

+1 for this, caps can cause all kinds of weird problems I wouldn't think to attribute to them initially.