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 Post subject: telerent leasing corporation tv from 1979. broken, help!
PostPosted: Jun Tue 05, 2018 12:55 pm 
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Joined: Jan Wed 17, 2018 8:17 pm
Posts: 127
so over by where we live there is a large abandoned house with a ton of old stuff in it, we did the research and we found out we know the people who used to live there, so we went and looked around, there were 6 barns full of stuff and the house was full, there was a 27 inch rca colortrac that i am still going to try to save, somebody bought the property and most likely is going to tear it down, anyways back to the topic of this post, i was going through one of the barns in the ack of the property that looked mostly untouched, most of them had people gone through everything and busted the tv screens, in the dark corner of a barn i found a tv, it is 20 inches and it sais TLC color solid stste tv on the front, cant remember the model right now but i will post that and pictures when i get home later, on the back it says "Telerent leasing corporation, 4191 fayetville RD Raleigh NC" i am assuming that is some sort of a distributor and not actually who made it, it has a mostly modular chassis and the case is made of metal. it works but the picture has a bit of static in it, there is some pretty bad color bleeding and there is a purple splotch in the corner of the screen, otherwise it works fine, like i say it has probably been sitting in the barn close to 10 years now. and although has not gotten wet it has had a hard life that would kill a modern flat screen. anyway i dont know if i mentioned it or not but it was made in 1979. if anybody knows anything about it, who made it(it seems Japanese), what is wrong with it, or if it is worth fixing let me know
p.s the picture is bright and is plenty bright on half way brightness so it is not the CRT is not weak.
it has rotary tuners and fine tuning does not help the picture issue. also when i have had it on after it gets
warmed up every minute or so it will make a slight pop and the picture will blink. that could just be arching because it was so dirty, i will send model and pictures if needed later

edit: i fixed the picture issues, then i messed it up by shorting someting. go to the second page to see what i did.


Last edited by ecaden1 on May Wed 22, 2019 3:17 pm, edited 3 times in total.

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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Tue 05, 2018 2:30 pm 
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Joined: Apr Sat 06, 2013 2:18 pm
Posts: 489
Location: New Hampshire
Take pictures from front, back & the guts & we can ID the set.

73 Zeno 8)
LFOD !


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Tue 05, 2018 2:32 pm 
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Joined: Jan Wed 17, 2018 8:17 pm
Posts: 127
like i said i will take pictures of it and i will show it on the inside as well, it is clean inside none of the dust attracted to hv so i think it is low hour, anyway i will do that when i gwt home later today.


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Tue 05, 2018 4:52 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 1480
Location: Cape Breton Island Canada
ecaden1 wrote:
it works but the picture has a bit of static in it, there is some pretty bad color bleeding and there is a purple splotch in the corner of the screen,


Color impurity (purple blotch corner screen) can be caused by the actual lead coming off the degaussing thermistor in the power supply particularly the circular disc type ( like the green ones that resemble disc caps in the below link) or bad solder joint on the lead on either type..The other common type being rectangular resembling a small relay (in the images)... The circuit demagnitizes the CRT on startup ..Failure in the circuit will cause the problems as you described and it can often be traced to the thermistor and was a quite common problem in 70/80's sets....On a side note If you want to see what a magnetism does to color purity just put a magnet near the front of the CRT and you'll get the idea..CRT's can also become magnetised over time if something magnetic is placed near it

https://www.google.ca/search?q=degaussi ... 22&bih=646


http://www.dataweek.co.za/news.aspx?pklnewsid=2821

https://www.petervis.com/electronics%20 ... Coils.html


It can also be caused by the deflection yoke and purity rings on the CRT neck slipping out of place..Check that the yoke is secure and in place....I also had sets that I could never get the color convergence lined up and I chalked that up to the set being previously physically dropped causing internal damage to the CRT shadow mask (basically a metal screen)...In those cases it was usually a corner of the CRT that had the impurity....That you can not fix

Post the photos as Zeno asked when you can ...

Ken


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Tue 05, 2018 9:25 pm 
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Joined: Jan Wed 17, 2018 8:17 pm
Posts: 127
Here are the photoes, sorry if they are not square or they are messed up, i had to downsize them alot. anyway i know it has nothing to do with anything but i thought it was cool that it had the flyback mounted in the bottom with wires soldered to it instead of it just being directly on the board.


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Tue 05, 2018 9:33 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 1480
Location: Cape Breton Island Canada
So a rebadged Toshiba TV that apparently was rented/leased out by Telerent primarily to hospitals?....

https://www.bloomberg.com/research/stoc ... pId=220759


What's puzzling is the Toshiba Chemical Products part 8)....If it is an actual Toshiba from my own experience they had fairly decent CRTs from that period.

Ken


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Wed 06, 2018 12:06 pm 
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Joined: Apr Sat 06, 2013 2:18 pm
Posts: 489
Location: New Hampshire
I dont think its a Toshiba or any other major Japanese brand. Looks
like a clone. Kinda looks Sanyo on front, like Toshiba on back but screws
are wrong. If it is Toshiba it will be printed on the PCB's. More
likely one of the small companies like Toyomenka, Funai etc.

73 Zeno 8)
LFOD !


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Wed 06, 2018 1:08 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 1480
Location: Cape Breton Island Canada
zeno wrote:
I dont think its a Toshiba or any other major Japanese brand. Looks
like a clone. Kinda looks Sanyo on front, like Toshiba on back but screws
are wrong. If it is Toshiba it will be printed on the PCB's. More
likely one of the small companies like Toyomenka, Funai etc.

73 Zeno 8)
LFOD !


You're probably right and it doesn't seem to match the quality of some of the Toshiba Blackstripes of the day..Rather generic exterior...how bout some shots of the interior and circuit board?


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Thu 07, 2018 2:27 pm 
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Joined: Jan Wed 17, 2018 8:17 pm
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the flyback is not on the board it is separate but it is modular everything is removable


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Fri 08, 2018 5:44 am 
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Joined: May Sun 07, 2017 11:35 am
Posts: 588
Location: Belrose, NSW, Australia
Hmmmmm.

Looks a lot like a Toshiba of the mid to late 70s but by the time the full self-converging CRTs appeared Toshiba had a chassis with mostly everything on a single board except for a "Chroma" module which they could change for different markets. Toshiba CRTs are always branded accordingly even in OEMs in my experience. Could be a Kisho out of Taiwan....
MuRata in Japan used to sell flyback modules to lots of manufacturers. You will never have to replace one of those.

_________________
Wax, paper, bitumen, cotton, high voltages - what could possibly go wrong?


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Fri 08, 2018 5:47 pm 
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Location: Ann Arbor, MI
Since no one has ever seen one of these sets before, it is obviously an extremely rare set.
You should be able to sell it on Ebay for $100000000000000000000000000000000000000000000000000000000000000000000000.00 :)

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Tom


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Fri 08, 2018 8:44 pm 
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Joined: Apr Sat 06, 2013 2:18 pm
Posts: 489
Location: New Hampshire
LOL you hit the nail on the head Tom
Actually when I saw the chassis I know I had worked on one or two 40 yrs ago. Dont
know who built it. One of the many odd balls sold by big box stores etc. Some worked
pretty good but we dreaded them due to no parts / manuals. Well its fun to see the nudie of
it & it would be fun to work on. Not just another Zenith.....

73 Zeno 8)
LFOD !

Tom Schulz wrote:
Since no one has ever seen one of these sets before, it is obviously an extremely rare set.
You should be able to sell it on Ebay for $100000000000000000000000000000000000000000000000000000000000000000000000.00 :)


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Fri 08, 2018 9:09 pm 
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Location: Granville Summit, PA
I'd be curious what else is in the barn and everywhere else on the property. It would be a shame to just let everything be scooped up and dumped just because someone blew all of the screens in.


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Fri 08, 2018 9:39 pm 
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Joined: Sep Tue 30, 2014 6:08 am
Posts: 4779
Location: Norfolk, VA
Looks like a Tatung modular set - metal cabinets, usually. We had several aboard carriers in the 80s. Only one of the modular sets is represented in Sams IIRC. Discrete vertical outputs, or the funky socketed Toshiba chip?

Tatung became popular with the projection conversion folks - the metal cabinet was sturdy enough to support the lens holders they added. Swap some yoke wires, disable the ABL, and you've got a decent 40" diagonal projection in a dim room. CRTs were Hitachi or Clinton, not the best, and driven hard.

_________________
Brian
"Capacitor Cosmetologist since 1979"
USN Retired 1984-2006 (Avionics/Cal)


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Sat 09, 2018 12:33 am 
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Location: Beaver Falls, PA. USA
334 is the EIA source code for Wells Gardener, but that set sure doesn't look like anything that they made back in the 1970s. I do remember seeing one of those with the Teknika name on it, with the same 334 production code number.

Maybe W-G outsourced the manufacturing of them, and resold them to distributors for the commercial market; the one that I was was in a motel.

If the set has a metal cabinet, the cabinet itself may have become magnetized. In that case, the whole thing would have to be degaussed.

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Tim KA3JRT


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Sat 09, 2018 2:39 am 
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Joined: Sep Tue 30, 2014 6:08 am
Posts: 4779
Location: Norfolk, VA
Tim Tress wrote:
334 is the EIA source code for Wells Gardener, but that set sure doesn't look like anything that they made back in the 1970s. I do remember seeing one of those with the Teknika name on it, with the same 334 production code number.

Maybe W-G outsourced the manufacturing of them, and resold them to distributors for the commercial market; the one that I was was in a motel.

If the set has a metal cabinet, the cabinet itself may have become magnetized. In that case, the whole thing would have to be degaussed.


The 333J is the UL code -and indicates an "old guard" Taiwanese maker. The suffix determined which one -

Tatung 333J
Funai 333Z

There are other 333-prefixed UL numbers, but all are appliance makers. Rice cookers, hair dryers, etc. NESDA used to publish the list, now you can buy it from UL.

Tatung started mass producing TVs in 1969, making it to US shores in the mid-70s, as a B2B maker for hotels and rental companies later a retail marketer.
http://www.tatung.com/Content-EN/about-history.asp

I was mistaken earlier about their CRTs - they didn't use Clintons - they owned Chungwa CRT (CPT), and used them. CPT exists still today.

OP - is there any raised print on the back, below the riveted-on metal plate? It may be hiding the original info/model...

PTS never supplied any of the Tatung modules, as nearly all of the modular Tatungs were closed-loop B2B sets, and Tatung themselves serviced them. We saw a few Tatungs and a lot of other oddball sets that came through, being in a huge military area.

_________________
Brian
"Capacitor Cosmetologist since 1979"
USN Retired 1984-2006 (Avionics/Cal)


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: Jun Sat 30, 2018 11:45 pm 
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Joined: Jan Wed 17, 2018 8:17 pm
Posts: 127
would anybody be interested in adopting this set in the raleigh NC USA area? if you are able to get it up and running properly i might be interested in buying it off of you. if not it is going to on a shelf on the shelf along with the other things i can not fix.


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: May Mon 20, 2019 11:03 pm 
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Joined: Jan Wed 17, 2018 8:17 pm
Posts: 127
i have got it working okay. still blurry as hell, but i think the crt is weak, but it is watchable. it is an RCA crt.


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: May Tue 21, 2019 9:24 am 
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Joined: May Sun 07, 2017 11:35 am
Posts: 588
Location: Belrose, NSW, Australia
Try the focus adjustment, the pot that's attached to the flyback / HV module. Adjust so you can see the scanning lines sharply.

_________________
Wax, paper, bitumen, cotton, high voltages - what could possibly go wrong?


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 Post subject: Re: Telerent leasing corporation (TLC) solid state color fro
PostPosted: May Tue 21, 2019 2:12 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 799
Location: dayton oh usa
its definitely a wells gardiner chassis.
i used to tear them down for parts for arcade monitors.
crt is likely shot.
those things smeared color with the slightest weakness.


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