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I tested the 21AXP22A and it tested near new on all 3 guns. Looks like the power switch caught fire not too long after the CRT was replaced.
What do you guys do when you come across previous repairs that don't match schematics? Luckily for me I'm referencing both the sams and RCA CTC5N service manuals and they both match each other. I'm not sure exactly what the tech was thinking with some of these repairs.
Here are two of the previous repair botches. Only one of the waxed caps on top was replaced and it should have been a .01 and I found an early orange drop replacement of .0047! C108 on the sams
Underneath they really changed the contrast circuit. I tried to draw out what they did and compared it with the sams. Both the sams and RCA service data match. I thought the contrast control might have been replaced with a different value pot but its 500ohms like it should be.
I do plan to put the contrast control circuit back the way it should be.
Check out that power switch failure and fire! Thats a volume/brightness/on-off combo switch. The brightness and volume still work thank goodness. I have the power switch wires shorted. Any ideas how to replace just the on off switch?
I have currently recapped the entire top. Started on the underneath of the chassis this evening.
Hopefully I'll have this up and running in the not too distant future!
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Matt Davala
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