My 630

[Geist]

Hi All;
I have put in the 10K resistor, as per Old Coot's suggestion.. I have powered the set up, with the Picture Tube in.. I get something, and I can make the Vertical lock in, with adjusting of the Vertical Hold Control.. The Horizontal, will maybe not lock in, with adjusting the Horizontal Hold Control, but the Picture is Smeared.. So, I think it might be close.. I will need to look up in my books on smearing pictures.. If my books suggest that it is a Cap issue, then I know I will need to wait till, I get them all replaced.. And then figure out IF it might be another control, that needs to be tweeked..
I KNOW that I am still waiting for the Caps to come and , also order the rest of what I don't have.. So, I can replace the necessary paper caps.. But, it seems to be working better than before.. Had work today and tomorrow, so next week on ordering the rest of the Cap parts..
THANK YOU Marty

[old_coot88]

By now it's probably safe to assume the short whatever it was, is gone. I would go ahead and hook pin 5 back up as original. With the temporary 10K in there, a couple of peaking coils and electrolytic C223B are out of circuit. This could be making the video a bit wonky.

[Geist]

Hi All;
Right now, what I have is the 10K, by-passing R140 and C223B and R141.. The Peaking coils are in there as well as C140.. I did it this way since it seemed to work, before I read your earlier posting.. I thought that, as you had said replacing one resistor instead of two resistors would be easier and simplifier.. I figure that leaving it this way for awhile, just to make sure would be ok, as I have not run it for a real long time as of yet.. The last time , when it burned up, it had been on for awhile, and I have as of yet to work up to that kind of time, being on.. And YES, I do bring it up using the Variac.. And Thank You (Old Coot) for sharing with us who don't know your experience in TV Repair, from your other posting..
THANK YOU Marty

[Geist]

Hi All;
I have looked up my Smearing problem in my Book.. And from the Tuner up to the Sync it is mostly Tuning and or adjusting.. It seems that the Video section is the most likely suspect and then the Sync section.. In Both sections it suggest checking Caps for Leakage, over or under value, Load Resistors changing value, and Peaking coils changed to larger or smaller or open.. So, I need to wait for the Caps to come in as this is the most likely cause..
THANK YOU Marty

[old_coot88]

Originally Posted by Geist

Hi All;
Right now, what I have is the 10K, by-passing R140 and C223B and R141.. The Peaking coils are in there as well as C140.. I did it this way since it seemed to work.... I thought that, as you had said replacing one resistor instead of two resistors would be easier and simplifier.. I figure that leaving it this way for awhile, just to make sure would be ok....

At this point, you'd be better off to restore the circuit as original, since the designers did it that way for a reason.
Our one-resistor shortcut was only to simplify hunting the "mystery short" in the tube socket. But now you want the circuit to behave as designed, ie., with C223B "clamping" the junction of R140/R141.

[Geist]

Hi All;
I got some of the Caps on saturaday.. If I don't have to go to work, I will take out the 10K resistor and put it back as per origional, along with changing out the .05 caps..
THANK YOU Marty

[Geist]

Hi All;
I have started to change out the caps..
I have also noticed, that my 630 is an early Version.. On the three terminals on the back, mine has two caps and a resistor, for the Sync modification, where as the 8TS30 has the one Cap in the 1st Video section.. Also on the Sams there is a Tie on point for a couple of Caps that I don't have.. I am not saying that they don't exist, but they are wired somewhere else.. I am also going to check that the compensating cap for the 1st Video and see if it is in the circuit..
THANK YOU Marty