tube tv ? - Page 3 - Videokarma.org TV - Video

radio nut · #31 04-30-2012, 02:30 PM

Well, So far I put electro's in because the picture wanted to wiggle side to side alot. That helped and the other issue I have is the top of the picture is being stretched and everyone looks like a conehead ! I found a way low reading resistor in the yoke circuit and replaced it and that helped, but not completely .

I am now suspecting the really bright yellow plastic caps in the set and will replace those .

radio nut · #32 05-21-2012, 03:51 PM

I replaced all the yellow caps, and then did the clear plastic ones with white paper on the inside with values on them.
So far the wiggle in the screen is gone but anything on the image that is bright white has a twinkle or flash to it. I have one cap that I haven't found and that is a 3750 volt .022 mf. Any ideas on that would be great.
Moyer's does not and just radios has 6000 volt but they are way longer than I need.
Also I did't think about til now But I have no idea if this set has a high voltage rectifier tube. next to the flyback box there is a horiz. output and a damper tube but no rect..
the flyback box has a cap on it that is 3/4 inch away from the horiz. freq. coil so I couldn't put a tube in there and the sticker that shows the tube placement does not show one.
Would someone please pull up the diagram and see what the tube should be and a procedure to get to it.
Sears all channel black and white tv model 562.10111. Thanks!

Electronic M · #33 05-21-2012, 11:32 PM

Nearly all sets kept the HV rect in the cage with the flyback. Open the cage(dismantel it if need be) look at the outer winding of the fly there should be one wire leading off the outer edge of the doughnut, that lead goes to the HV rect tube.

radio nut · #34 06-04-2012, 09:42 AM

Well I had two caps to put in and check the high voltage rectifier. After finishing up all I get is a bright horizontal line. It worked before but the performance was going down hill.
On top of that it turns one section of the vertical osc./ output tube red. The cap I need is a .022 3750 volt cap and I am using 2 -.01 @10,000 volt caps that are newer but not old. I switched caps and tried different vert tube and results same. one part of the input to the vert transformer gets fed from flyback and the other comes from the vert tube and is showing about 100 volts. Any ideas and also the Sams number so I can get a diagram. it is model 562.10111. thanks!
the input to vert transformer is about 100 volts both wires and the output shows 0 volts .

radio nut · #35 06-04-2012, 01:50 PM

I also retried the original cap. Due to the sets chassis design I did put some pressure on wiring when I put the new high voltage rectifier in place and I put an ohm meter on those to make sure I did not pull one lose. Found one I did damage, fixed that and still......horizontal bright line on screen and red plated vert. tube.

radio nut · #36 06-04-2012, 01:52 PM

I thought the tube would only red plate if the osc. isn't doing its job?

Electronic M · #37 06-10-2012, 05:54 PM

Try searching the model here https://www.samswebsite.com/ you should be able to find the sam's number, and if you don't have a cheaper source for the manuals you can buy it from them too. I may have a copy of the sam's for that set or a clone of it, but I just moved and it could be some time before I can check the 2-3 unsorted bankers boxes of sam's I have.

It is times like these when a schematic can be the difference between metaphorically banging your head against a wall, and pinpointing the source of your set's troubles.

If it had good vertical deflection before your repairs then carefully recheck your work, and if that fails look for shorted caps in the vertical deflection circuit.

Good Luck.