Thread: Rca Ctc9
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Old 04-01-2007, 04:58 PM
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Ampico-kid Ampico-kid is offline
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Join Date: Mar 2007
Location: Harpers Ferry, WV
Posts: 340
Hi;

Just finished the preliminary restoration work on the CTC 9 chassis. Replaced all of the electrolytics, black beauties, off value resistors, weak tubes, and gave it a general sprucing up. I spent a good part of yesterday "forming" the electrolytics and decided that today it's time to see if it works.

I put the chassis back into the set, reconnected all the proper wires and turned it on. Within about a minute I had a pretty dim picture and found that the horizontal control was set way off in left field. After I adjusted the control back to it's proper position, degaussed the front of the picture tube, played with the purity a little bit and then hooked up the dot bar generator, the attached picture is what I had. All things considered I think it looks pretty respectable for it's first "check up".

Some of the controls are a bit "dirty", and the convergance definitely needs to be gone over, but I didn't see any real serious problems. The only malfunction I found is the fact that the red level is too high. Even with the red background control at minimum there is still some red evident in the picture. The green and blue when turned fully counter clockwise will not be visible at all, the red will still be visible. It's not real bright, but has enough luminance to be visible. In order to get something even close to a black and white picture the red must be at minimum and the other two controls close to max. I checked the picture tube on my tester and all three guns seem pretty close in output. Not sure yet what the problem is, so I've got to do a little detective work on that one.


Just thought you'd all like to see what progress has been made.

Thanks!
Bob.

Last edited by Ampico-kid; 04-18-2009 at 07:32 AM.
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