[DaveWM]

since I am talking about the CTC-9 a little background. after going over it and doing a slow power up, it came up with HV and signal but no horz lock, could not adj enough to flop the horz.

I completely recapped the sweep boards, replacing most of the dipped caps. I left a singe .01 and .22 that tested perfect.

there was a bumble bee on the IF board that was part of the sync sep, replace that one of course.

for good measure I replace the 2kv ceramic tube cap on the audio board, and the coupling caps for the audio that are mounted under the chassis.

there were a few dipped caps around the HV section, the AGC take off cap and the eff coil cap. the eff coil cap leaked (as did almost all the 200v dipped caps).

replace a coupling cap on the video out tube and a few others, bypass caps, on the video board.

prob in total 80% of all the film caps were replaced with about 1/2 of those showing leaky and the rest showing weak on the cap tester.

there were two or 3 single electrolyiics vert, video and AGC I think. the 3 cans all tested like new so I left them alone.

when I was all done it worked but I had what looked like a hum bar and some horz shakes. I assumed it was HK or one of the cans had failed after the prelim test.

the scope showed a very clean B+ so I moved on short testing on the tube tester, one IF had a very minor short so it got replaced.

Tried again an no real change...

finally I backed off the noise and then the AGC controls. the pic started to wash out and then went completely out of horz sync. I touched up the horz hold and the pic synced right up and the shakes and hum bar was gone! I turned up the agc until the pic got overly dark and lost sync, backed off about 1/8 turn and all was good. adj the noise inverter CW until lost sync, then backed that back 1/8 turn CCW.

After that the shakes were gone good color lock (oh yea that was iffy too before) and the hum bar was gone.

the hum bar was really what threw me off track in the 1st place, not sure what that was all about.

the set has really good color and excellent sound, not a hint of sync buzz or any other nastiness. oh yea the tuner was noisy so that got taken apart, cleaned, lubed. All good now.