RCA CTC-36 Woes

[Kamakiri]

Makes sense, thanks. I was hoping deep down that it *was* some type of horizontal centering adjustment, as I can't get the set to fill out about an inch on the right side of the screen.

Linearity was a little out of whack, but it pulled in fine with a little tweaking.....sounds like I may be looking at new resistors there as well, but damned if I can figure out how to adjust the horizontal centering.

[dieseljeep]

Originally Posted by Kamakiri

Makes sense, thanks. I was hoping deep down that it *was* some type of horizontal centering adjustment, as I can't get the set to fill out about an inch on the right side of the screen.

Linearity was a little out of whack, but it pulled in fine with a little tweaking.....sounds like I may be looking at new resistors there as well, but damned if I can figure out how to adjust the horizontal centering.

It's been ages, since I did TV repair on a regular basis. Trying to remember if there is a horizontal centering option on that chassis.
Are you sure the damper tube and horizontal output tube is perfect? When you see an image on the screen, such as text, does it seem centered?
If so, your problem is insuffient sweep. Is your B+ Around 255 volts?
BTW, is that the CTC53 or the CTC36, as you seem to be working on two sets.

[Kamakiri]

Originally Posted by dieseljeep

It's been ages, since I did TV repair on a regular basis. Trying to remember if there is a horizontal centering option on that chassis.
Are you sure the damper tube and horizontal output tube is perfect? When you see an image on the screen, such as text, does it seem centered?
If so, your problem is insuffient sweep. Is your B+ Around 255 volts?
BTW, is that the CTC53 or the CTC36, as you seem to be working on two sets.

This is the CTC53. I'm sorry, I really should have broken this into two threads. The sets seemed so close in appearance I had no idea until I got the back off that these were two significantly different animals.

Everything seems centered, but it's so damned close to the edge right now I can't tell if it's a sweep issue or a centering issue. I didn't check B+, because I figured there *had* to be a simple adjustment for this. Ain't seeming like it . And my tester won't do these particular tubes....again, figuring it was an adjustment.

Pretty sure that something somewhere has drifted in value, because after a couple hours of play, it seems to have just about centered itself somehow. I'm not going to ask HOW, but now there's maybe 5/16" of blank real estate on the right side, and that I can live with for now.

I decided that I'm going to go ahead and replace the resistors on the board of the CTC36, I just have to determine the rating of them. Since I don't have the sams for it, I may wait until I get one, I'll probably order over the weekend. I would assume that 1 watt would do, but I don't want to get any surprises down the road.