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If you had no Red, I'd have suggested an open coil in the drive circuitry. The one in the green circuit (L6) opens quite often, leaving you with nice magenta pix. There is a similar coil in the circuitry for the other two guns, but you do have some red, so that's not likely the culprit. Only other gripes I've seen on those little sets was the focus resistor would open, leaving you with inop focus.
Great little sets - Dad was approached by RCA about becoming an RCA dealer in 1980 - he'd have to take delivery of a minimum of 96 TVs a year. His price for 13" color portables was about 40 dollars higher than what one of the local "mega-dealers" here was selling them for. Not a great way to woo independent dealers, but great for the consumer!
Cheers,
__________________
Brian
USN RET 22YRS (Avionics/Cal)
CET-Consumer Repair and Avionics ('88)
"Capacitor Cosmetologist since '79"
When fuses go to work, they quit!
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