TV Zenith Solid-state 70's
 

Hello to all..Anyone has a schematic or/a catalog for this Tv ? any help would be appreciated. I put 2 pictures. Thank you.

http://i38.servimg.com/u/f38/16/43/78/89/zenith11.jpg
http://i38.servimg.com/u/f38/16/43/78/89/zenith12.jpg

TV model or chassis number would help!

It's a hybrid, possibly a 12B13C52 chassis. 1971 I think, with ultramatic tuner.

That is a nice looking Zenith!
I believe I've offered before to look up the service info for you if you can give me the chassis number.

If you don't know the chassis number, then remove the back cover and there should be a chassis number printed on a sticker on the HV cage right in plain sight, if that sticker is gone then look for one pasted to the inside of one of the sides of the cabinet.

I tend to agree with you Jon as to the most likely chassis to be in it. I have a 12B13C52 chassis set, and from literature I've seen that chassis was offered with the same control layout as marco has.

The chassis number is always the best identifier of a Zenith set IMHO since the service data is cataloged to make that the easiest number to look up, and the fact that Zenith usually offered the same chassis in various cabinets with a different model number on each cabinet.

Thank you for your nice comments.. Here is the chassis number that I saw on the label on the left side from the cabinet.

serial number : 5400070

TV chassis: 25CC55

The other numbers are illisible..


The pictures showed are from the owner before me...now my tv is in my basement but i made some efforts hey!!..lollll removing stock on it, back and in front of the tv.. well, I have lot of stock :(

First year solid state "flat chassis". Uses pass regulator
instead of the regulating transformer.
The flat chassis sets are considered by most including me
to be the best color TV's built by anyone, anytime, anywhere:yes:
You have a gem.

73 Zeno:smoke:

Zenith CM-120 service data has your set. I have the training module from 1971.

CM-series manuals show up on ebay all the time. I don't have one, nor do I see one eBay right now.

Cheers,

I have a paper copy of the factory schematic, but not the full service manual (which would include more than the schematic). I'll either scan it or take hi resolution pictures of it for you when I get the chance.

Interesting, I never knew any 1972 sets looked like that.

I would like to have it if have it in pdf lease ;) i thank you.

1972 !.. seems to be a 1971 but no problem

Okay but the schematic will help me for the caps, resistors , diode etc etc... this set works but not completely. The CRT is good and give a nice picture ...The shassis is metal , no tubes on it completely transitorized...:yes:

Like cars model year is not build year. The new TV models
started in the fall like cars. So a 1972 built in '71.
Sometimes there are early releases of top of line models.
Usually they are regional. They will have the older year
model number.

BTW there is one thing that needs to be checked before you
run this much, when you dig in let us know.

73 Zeno:smoke:

It's so close to being the ultimate flatty in my opinion. I never knew they were made with ultramatic tuners. If only the styling were anything but French Provincial. ;) My Space Command 500 console is probably the closest I can get to that in a 1973 model.

Actually THREE things::
1--safety caps.
2 focus divider/bleeder
3-Tripler.

Think about it. French provincial quite appropriate for PQ ! My
parents honeymooned in Q City, the set goes well with the
pictures they brought back. Some awesome architecture. Only
been to Montreal myself & it dont hold a candle to QC from
what I seen.

73 Zeno:smoke:

It's paper, and my only one. 87 pages, not an easy scan. Lots of good info, I'll see what I can do.

Cheers,

That set looks like Zenith's "The Chaumont" or "The Palma", as listed in a 1971 Zenith TV brochure I downloaded as a PDF file. I believe this file is still available from Mediafire.com, although you may have to search VK's archives to find it. VK member Doug, drh4683, scanned a bunch of those brochures onto MF.com; they are probably still there.

Hi Jeff... Do you have the link please?. thanks:thmbsp:

Thank you for the comment.. However I only need the schematic for the complete circuit. I'm sure I'm not learning you anything but mine is metal. ;) . Anyway. do your best :thmbsp:

Sams is # 1266...

I pulled the manual on this set. When you open it
look on the side of the flyback transformer. There are 2
capacitors marked 22-5001 .0018 1.6 KV.
( D & E chassii have more).
If they are white you must change them. If they are
orange they are OK to use.
The HV tripler should be examined for cracks.
The focus divider is the "rocket ship" style & rarely gave
trouble in Zeniths.
I will keep the manual handy if you have other questions

au revoir Zeno:smoke:

Look again....accd. to the sams....the "rocket ship" is JUST a 200 meg. HV Bleeder. only connections are to the anode and ground. Focus comes off the tripler--and through a couple of high-value resistors on the focus board.

Is this somthing that i need to check ?..:scratch2:

I don't know what you mean by " FLAT CHASSIS " My TV uses a metal chassis..:scratch2:

Merci.. I will check later because I have lot of things to do. I moved and I have to replace many things..And if you can speak french, I prefer ;)

PS: If i clic 'ON " i can see the picture but not complete. the sound is great and I do not hear crackling from inside the cabinet and the flyback .. There are no tubes either on the frame.

In french : Je vois les trois quarts de l'image dans l'écran mais les têtes des personnages sont difformes et sont penchés vers la droite..

Flat chassis refers to the way it is laid out...on a relatively FLAT metal frame. built MUCH like a tube set--but solid state. The 3 model years of flat SS chassis (along with the 4 tube hybrid sets from the same time frame, also a flat chassis construction) happen to be what many of us consider THE BEST tv sets EVER made--bar NONE.

As for the safety caps---they are on the flyback board. If white they WILL need replaced. If they look like an " orange tubular blob", known as [orange drop" they are likely OK.

I guess those C-line flat chassis don't give as much of a grace period for CRT survival, if any, when a white safety cap opens.

okay. From what I know and see. I have no tubes ( glass ) on the chassis..I have already had in the past with tubes and it was a portable RCA but I was fool rid myself 5 years ago ....

If I understand, I have a quality Tv isn't it?

Yes you have what most believe is the best TV ever built.
I wish I had one !

Sorry only remember a few French words from my lessons
50 yrs ago. There are other members in PQ that may help
you. American English can be very hard because we have so
many accents. Northern New England is the only place that
does not have an accent !

73 Zeno:smoke:

Okay I scanned the schematic page. It is a sheet larger than 11X17" so each face is split in to two scans...It is the best I can manage right now.

I just realized the files are too large to attach to a post on this forum. Can you PM or post your email address so I can email them to you?

You got me ! I guess I need new glasses & look more careful.

73 Zeno:smoke:

okay i understand..At school the english language is the second language we learn ...The only english i understand is the American english.. new England not at all when someone frome England speaks to me..The pronounciation is so different...Even in USA in different states, especialy in Texas, they speak with their nose a little , so it's hard for me sometimes due to the fact I speak french. However, Quebec has many ways to speak french... harsh french i mean but that is not a problem for me..

I emailed it to you. Good luck.

It is my understanding that English is the most challenging language to learn.

Yes I received the folder.. I sent you a message and I thank you very much , you save my life :):thmbsp:

yes you're right.. so many abreviations even in english or french..:D

Hi rca2000. Can you tell me the problems with the 3 items ?

Where are the safety caps

Focus divider/bleeder seem seem to be okay and working good

tripler : there's no cracks at first view and I don't hear any cracky sound.

There's no white caps on the flyback board.All i have are most in this style:

http://i38.servimg.com/u/f38/17/86/46/04/conden10.jpg

I hope that help you

Those are fine. Check for white caps under the chassis too. There's an access panel under the cabinet.