View Single Post
  #2  
Old 07-18-2018, 12:53 AM
Electronic M's Avatar
Electronic M Electronic M is offline
M is for Memory
 
Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 14,808
The whine is likely the horizontal osc being off frequency. Most RCAs had an adjustable H osc coil. If that coil was adjusted to compensate for failing capacitors and you replaced those caps then it has to be readjusted for the new caps. Best to adjust it with an oscilloscope (I look at the sync on the composite video then match its freq in the osc, then get osc the waveform right).

If your set has an Ion trap and it has been removed or misadjusted that will result in no picture. Another cause of no picture is incorrect gun voltages on the CRT (may want to check).
__________________
Tom C.

Zenith: The quality stays in EVEN after the name falls off!
What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
Reply With Quote