Thread: Resolution lines on Zenith roundie
View Single Post
  #13  
Old 06-21-2024, 01:11 PM
old_tv_nut's Avatar
old_tv_nut old_tv_nut is offline
See yourself on Color TV!
  
Join Date: Jul 2004
Location: Rancho Sahuarita
Posts: 7,704
Looking at the schematic now.

Measure cathode and G1 voltages on the CRT.
Try swapping demodulator tubes (6JH8s) and see if the background color changes.
__________________
www.bretl.com
Old TV literature, New York World's Fair, and other miscellany
Reply With Quote