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Old 07-31-2012, 08:41 AM
Winky Dink's Avatar
Winky Dink Winky Dink is offline
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Join Date: Apr 2010
Location: Meridian, Idaho.
Posts: 583
Need Help with Admiral 17T1

I've taken this project as far as I can, but I've only restored the audio. That's as far as I got with my last TV, a Motorola 12T2. At this point I'm hoping someone has the time to give me some direction. Otherwise I'll look for a job in a repair shop that specializes in TV for the blind.

The set worked well when I took it home two years ago. Several months later I took the chassis out for photos only, and subsequently it had nothing on the screen and barely perceptible audio.

The set has been previously repaired with replacement of most of the paper and electrolytic caps. I have no business criticizing someone else's work, so I'll describe the repairs as being "expedient." But it worked.

In the past few weeks I've ensured that the tubes are good; cleaned the chassis; replaced the remaining paper caps and one cardboard-tube electrolytic; repaired open connections on a couple of caps, and run the voltage tests a few times. I don't have the resistance data for this set, but I tried to check it against some of Sams data for the similar Admiral 19A1 (There are electronic differences and the tube numbering is different). I can get a good arc (between 1/4-inch and 1/2 inch) from the HV rectifier cap and from the high-voltage pin connections for the picture tube.

I'll try to show the schematic and data in the post, but if I screw it up again, here's link to an album that has all that information and a few photos:

https://picasaweb.google.com/coldrb/...eat=directlink









Finally, here's a link to the Wallace service data:

http://www.earlytelevision.org/image...1_telaides.pdf

Thanks,
Winky
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