Zenith 20Y1C8 Sams

[rca21d645]

I have recently acquired a Zenith 20Y1C8 and the previous owner disconnected all the connections between the chassis and the front of the TV without marking where the connections go. Most of the larger connections are fairly straightforward but I'm not as certain about some of the point to point connections. Does anyone have a scan of Sams #981-2 that I could use, or at least the schematic for this TV?

[zeno]

Chassis will be marked by etching or little white tags. Also the
places they came from will be a lot cleaner.
Best I remember.....
Degausing = 2 red wires to DGS next to each other
Spoeaker = 2 brown wires to SPKR next to each other.
If it has AFT / AFC IIRC a white/blue wire goes to top of a
sub assembly near the IF tubes.
Ground straps clip on to the DGS shield.
That should get you going for now.

73 Zeno
LFOD !

[rca21d645]

Well, this project was short lived as pin 13 broke off of the picture tube right at the glass. Oh well.

[Jeffhs]

Originally Posted by rca21d645

Well, this project was short lived as pin 13 broke off of the picture tube right at the glass. Oh well.

Unless the CRT in your set is, as we say here on VK, unobtanium, I see no reason why your project has to end. Is the CRT a special type which is difficult or impossible to find? I can't imagine that to be the case, as most American color televisions made in the '60s-'70s used CRTs such as 23EGP22, et al.

The only thing I can think of which would stop your project in its tracks for good would be if the original CRT is some special type, which I doubt since your set is an American make. I have never heard of an American-made color TV using any kind of non-standard CRT.

I would try looking on eBay for a replacement. Many times good used CRTs show up on that site for reasonable prices.

Good luck, and please, don't give up. As I said, unless the original CRT is in fact unobtanium, you should be able to find a replacement somewhere, even if it takes some scrounging around. Tube-powered NTSC color televisions may be obsolete in this age of digital TV, but they can still be repaired in most cases, even though the repair may not be an easy job.

Your TV is a Zenith, so finding a replacement for the CRT should be possible. I read somewhere, I believe right here on VK some time ago, that it is impossible to "kill" a Zenith television, given their hand-wired, solid copper chassis and other design features most other color TV manufacturers quit using in favor of cheap design shortcuts years and decades ago.

[damen]

I've had that happen before and I cut a similar size capacitor lead slightly longer than the original pin and stuck it in the socket and then pressed it on letting the other pins provide the pressure to keep it in place. Worked great until I located a replacement tube.

[rca21d645]

Originally Posted by Jeffhs

Unless the CRT in your set is, as we say here on VK, unobtanium, I see no reason why your project has to end. Is the CRT a special type which is difficult or impossible to find? I can't imagine that to be the case, as most American color televisions made in the '60s-'70s used CRTs such as 23EGP22, et al.

The only thing I can think of which would stop your project in its tracks for good would be if the original CRT is some special type, which I doubt since your set is an American make. I have never heard of an American-made color TV using any kind of non-standard CRT.

I would try looking on eBay for a replacement. Many times good used CRTs show up on that site for reasonable prices.

Good luck, and please, don't give up. As I said, unless the original CRT is in fact unobtanium, you should be able to find a replacement somewhere, even if it takes some scrounging around. Tube-powered NTSC color televisions may be obsolete in this age of digital TV, but they can still be repaired in most cases, even though the repair may not be an easy job.

Your TV is a Zenith, so finding a replacement for the CRT should be possible. I read somewhere, I believe right here on VK some time ago, that it is impossible to "kill" a Zenith television, given their hand-wired, solid copper chassis and other design features most other color TV manufacturers quit using in favor of cheap design shortcuts years and decades ago.

It's more of just that the set was free, its missing the cabinet, and I have no way to even test if the picture tube was good as my tube tester only fits on b/w picture tubes. Just seems like it was destined to be parted out.

[dieseljeep]

Originally Posted by rca21d645

It's more of just that the set was free, its missing the cabinet, and I have no way to even test if the picture tube was good as my tube tester only fits on b/w picture tubes. Just seems like it was destined to be parted out.

It's not worth spending any money on it, if it isn't complete!
TV sets are all over the place for free. Check the free ads.

[rca21d645]

Originally Posted by dieseljeep

It's not worth spending any money on it, if it isn't complete!
TV sets are all over the place for free. Check the free ads.

Good point, I just rarely see color tube/hybrid sets like that come up in my area, much less for free.

[zeno]

Originally Posted by rca21d645

Good point, I just rarely see color tube/hybrid sets like that come up in my area, much less for free.

A few ideas that work.

Yard sales. Ask if they have any. Often hidden in cellar of old houses.

The dump ! Most would be happy to let you take any away for free.

Free ad boards. "Wanted 1950's to 1960's color TV's".
Will remove for free. You need to sort through the crap though.

Disposal fees are your friend. If its been listed a while offer to remove
it for free. Point out if they dump it it will cost them abt $30 in most
places.

73 Zeno
LFOD !