View Single Post
  #11  
Old 05-29-2017, 02:35 PM
Mr.B&W Mr.B&W is offline
VideoKarma Member
 
Join Date: May 2015
Posts: 7
Quote:
Originally Posted by Ed in Tx View Post
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.

Quote:
Originally Posted by mrjukebox160 View Post
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.
Reply With Quote