Forums :: Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives
Support This Site: Contributors :: Advertise


It is currently May Sun 31, 2020 1:23 pm


All times are UTC [ DST ]





Post New Topic Post Reply  [ 11 posts ] 
Author Message
 Post subject: Trying to identify a zenith set
PostPosted: Mar Fri 13, 2020 9:23 pm 
Member
User avatar

Joined: Jan Wed 17, 2018 8:59 pm
Posts: 303
Location: Bridgeport, OH
This set is listed in my area, but is a drive so I’m trying to find out what it is. I asked for more pictures but this is all they provided. If it’s all solid state I don’t think I’d be interested. I would think since it doesn’t have slide controls its a early 70s color hybrid. Any help on what it is would be great!


Attachments:
97C08AFE-67FF-46F7-8377-DDB37C729522.jpeg
97C08AFE-67FF-46F7-8377-DDB37C729522.jpeg [ 31.93 KiB | Viewed 917 times ]
A43DA4B0-0489-46E9-8375-770741C78BAC.png
A43DA4B0-0489-46E9-8375-770741C78BAC.png [ 100 KiB | Viewed 917 times ]
Top
 Profile  
 
 Post subject: Re: Trying to identify a zenith set
PostPosted: Mar Fri 13, 2020 9:33 pm 
Member
User avatar

Joined: Nov Thu 11, 2010 6:03 pm
Posts: 1224
Location: Pewaukee, WI
That is Zeniths last generation of modular upright chassis solid state before the 2 PCB system 3 generation came out.
CRT in it is a deltagun color CRT interchangeable with and Superior to any color CRT of the same screen size made before it.
These sets are basically immortal (all 4 upright CCII Zeniths I've owned worked well as found), will deliver the best picture a deltagun color CRT is capable of, and the PCB circuit modules are cheap and plentiful.
If you want an early SS set that is capable of outliving you with minimal maintenance or a good CRT donor for something older then this is about the best you can do.


Top
 Profile  
 
 Post subject: Re: Trying to identify a zenith set
PostPosted: Mar Fri 13, 2020 9:38 pm 
Member
User avatar

Joined: Jan Wed 17, 2018 8:59 pm
Posts: 303
Location: Bridgeport, OH
Okay if thats impressive I’ll have to pick it up. Is there a specific time frame this set was made without knowing the model number?


Top
 Profile  
 
 Post subject: Re: Trying to identify a zenith set
PostPosted: Mar Fri 13, 2020 10:23 pm 
Member

Joined: Apr Sat 06, 2013 2:18 pm
Posts: 521
Location: New Hampshire
76-79 CC2 upright solid state chassis. So easy to fix its a crime !
Back tag has date & model info but they often have faded from UV rays.
These are the best starter sets for those just starting. Almost always are
running when found. CRT's near bullet proof also. Dont pay much, super common.
Cabinet condition most important.

73 Zeno 8)
LFOD !


Top
 Profile  
 
 Post subject: Re: Trying to identify a zenith set
PostPosted: Mar Fri 13, 2020 11:18 pm 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 8642
Location: Beaver Falls, PA. USA
Actually, the CCII vertical chassis dates back to the "E" model year (1974). The early ones were plagued with the defective 22-7233 capacitors, and were involved in a field modification/recall. Zenith threw out the original manufacturer of the part (American Radionics) and went to Sprague for the replacements, and subsequent production. The modified sets have a label indicating them. The "good" capacitor looks like an overgrown Orange Drop, mounted just below the horizontal output transistor heat sink.

All of the vertical chassis sets are very good. There are some known problems; HV triplers, the 24 volt regulator transistor, the occasional bad capacitor, and the vertical sweep module. That module was redesigned for greater reliability. I must have serviced dozens of those sets over the years, and still have some modules in stock.

_________________
Tim KA3JRT


Top
 Profile  
 
 Post subject: Re: Trying to identify a zenith set
PostPosted: Mar Sat 14, 2020 12:22 am 
Member
User avatar

Joined: Jan Wed 17, 2018 8:59 pm
Posts: 303
Location: Bridgeport, OH
The sets free but is a drive to get it. I think I’ll pick it up. I was worried this would be a late 70s early 80s set. I am trying to avoid those sets.


Top
 Profile  
 
 Post subject: Re: Trying to identify a zenith set
PostPosted: Mar Sat 14, 2020 8:13 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 707
Location: dayton oh usa
the crt is worth the trip alone.
23vce/vcmp22.
best 25a/23v jug made bar none.
just put a nos one in a ctc40 for a customer i have serviced since i was 16.
we knew it was getting pretty bad for years.
the guy got a settlement from an accident and wanted it back perfect.
got odd looks and head scratching when i came in with a zenith carton.
the family has had the set since new and commented it looked better now than when it was new.


Top
 Profile  
 
 Post subject: Re: Trying to identify a zenith set
PostPosted: Mar Tue 17, 2020 3:43 am 
Member
User avatar

Joined: Jan Wed 17, 2018 8:59 pm
Posts: 303
Location: Bridgeport, OH
I picked up the set but sadly it isn't working for now. I hear HV and static but the picture tube doesn't illuminate. The set's breaker goes off before anything else happens. The set is from 79'. I do not have a crt tester to check it.

here is a video of what it does: https://www.youtube.com/watch?v=CbmZLIFhwNQ

I have worked on a few set's but this one really is out of my interest by being so new, but maybe the crt is good. Hopefully this is a common problem.... I don't want to sink too much in it :oops:

Thanks!


Top
 Profile  
 
 Post subject: Re: Trying to identify a zenith set
PostPosted: Mar Tue 17, 2020 6:05 am 
Member
User avatar

Joined: Mar Sun 01, 2009 10:27 pm
Posts: 5256
Location: Ann Arbor, MI
My set started making a noticeable hum followed by the circuit breaker popping. I found a large electrolytic cap in a metal can on the back side of the chassis that had a shorted section. I had to pull the chassis out to get to it.
Unfortunately for me the set is on a somewhat high shelf and I am no longer strong enough to lift it down. I was able to rotate it front to back and then I worked on it standing on a step stool.

_________________
Tom


Top
 Profile  
 
 Post subject: Re: Trying to identify a zenith set
PostPosted: Mar Tue 17, 2020 1:25 pm 
Member

Joined: Apr Sat 06, 2013 2:18 pm
Posts: 521
Location: New Hampshire
If little or no hum before the breaker pops its usually the tripler.
If its a fast breaker pop with very loud hum its a dead short in the
power supply or hoz output.

73 Zeno 8)
LFOD !


Top
 Profile  
 
 Post subject: Re: Trying to identify a zenith set
PostPosted: Mar Mon 23, 2020 11:25 pm 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 8642
Location: Beaver Falls, PA. USA
Disconnect the HV lead from the flyback transformer at the tripler, dress the wire away from anything that it can arc to, and power it up. If the breaker holds, the tripler is shorted (a common problem). If it still trips, look for a shorted horizontal output transistor, damper diode, or feedthrough capacitor in its collector circuit. This is on the chassis, under the heat sink.

_________________
Tim KA3JRT


Top
 Profile  
 
Post New Topic Post Reply  [ 11 posts ]  Moderators: 7jp4-guy, Mr. Detrola

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 9 guests



Search for:
Jump to:  


































-->


Privacy Policy :: Powered by phpBB