Sears Silver TV repair

Performa

Member
The little Sears portable TV that went to the 2022 Stevens Point Robo-Cup isn't working anymore. I suspect something inside has been cooked, and needs replacing. I shall document that process in this thread!

 

Performa

Member
So here's the guts of it; it's been narrowed down between something with the high voltage, or the tube itself. Both are quite a bit out of my field of expertise, so I've reached out to a couple folks I know that might be able to steer me on this one.





Best case scenario, we'll fix it. If it's not fixable, I've got a few other schemes for this thing.
 

Performa

Member
Well, I've managed to get it to make a "different" high pitched sound, but that's about the limit of my knowledge and skills. I'm putting this one to the side for the moment- I still believe it is fixable, but I think I'm going to have someone more knowledgeable than me take a look at it before I do anything else to it. That should happen later this year, hopefully in time for the fall show (date TBD).

 

DeanG

Well-known member
I'm sure myself and others have a miniature TV or monitor to fill in the gap for you, even willing to let you sticker it up!
 

Performa

Member
I'm sure myself and others have a miniature TV or monitor to fill in the gap for you, even willing to let you sticker it up!
We've got a few backups, so thankfully we're not really down anything that way. I just dig this one, it's got a good look. ;)
 

Performa

Member
I have figured out the problem! After a lot of digging around, I finally found an old Reddit thread that points to the issue being the flyback transformer. A quick check on YouTube, and it sounds almost the same as the one in this video.


Now I just need to build a plan of action to figure out what it's going to take to fix the little contraption in terms of time and money so I can get it on the schedule!
 

MattPilz

Member
I hope you will be able to find a replacement easy enough. In some (really old) TV repairs I've done it was a real hunt and lots of months of waiting to find NOS parts come up on eBay. But hopefully the flyback in your set is more universal than some of the obscure spec'd ones I've had to deal with.
 
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