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Old 11-21-2012, 04:54 PM
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bandersen bandersen is offline
RCA 741PCS
 
Join Date: Mar 2009
Location: Chicago, IL
Posts: 8,780
I obtained a copy of the Sams service info and quickly tracked the problem down to a bad coarse horizontal hold control. I worked on it with some DeOxit and managed to get a small portion of the rotation to conduct.

That got the hor. oscillator running and I have HV. No vertical tough.


Not surprisingly the vertical hold control also appears to be shot except at one extreme.

Mounting all these controls so they face upwards seems to have been a really bad idea


After tweaking the AGC and fine tuning I finally got an image of sorts.


Next up I'll work on those controls some more and try to dig up a 14XP4 CRT.
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