Quote:
Originally Posted by Ralph S
Hi: I had this CTC-16F on for about 2 hours when the HV went off and smoke started coming out of the cage. After things cooled off, I opened it up and thought I saw a small spider running out but I could be wrong. In any case if you look at the attached pictures you'll seek what look like carbon covered web-like threads on the floor and walls of the cage. What do you think is the real cause for the failure: a spider web, failed component(s) or an old flyback giving up the ghost? Is this flyback repairable?
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Hi Guys
I think it would be best to replace the fly back. It looks like it over heated and the tire caught fire when it started arcing. 90 % of the time it is a problem with the chassis that will cause the fly to fail so you may have to find the problem that fried your fly back before you run the new one any length of time.
One problem I found in my ctc 16 xl is someone replaced the 3ca3 with a 3a3 rectifier tube. The 3a3 caused the fly to over heat and melted down the plastic rectifier socket. I was lucky that it did not destroy the fly but I had to replace the socket. Make sure you check for this and put the correct tube in your set
This is vary important, One of the first things you should do when fixing any vintage color set is check the horizontal output current and make sure the hi voltage to the picture tube is correct. Look in the manual for your set and it should tell you the correct current and hi voltage settings. If you have to dig deeper you may also have to check the hv regulator current.
ANOTHER problem is the ac line voltage going into your set. If your line voltage is 120 ac or higher it can cause the horizontal current to go to high and the fly will start to drip wax and will cook.
When the sets where new it was rare for the ac line voltage to go over 117vac in most parts of the country.
What I do is any set made before 1965, I set the variac to 117vac and any color set made the 50's I set the variac to 115vac. Trust me, This will save you from a lot of problems that could result from high ac line voltage.
I beat the crap out of my roundies and They will play for years with out a problem once ya get all the problem out of them. The ctc 16 series chassis puts out a good clear color picture.
Good luck
Ed