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  #31  
Old 12-19-2012, 09:19 AM
dieseljeep dieseljeep is offline
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Quote:
Originally Posted by jr_tech View Post
Indeed, In fact when the "4 hour" VHS machines first came out in the fall of 1977 some large department stores sold both brands side by side, with the Panasonic usually commanding a premium price. In the NW, the RCA sold for about $1000 ($999?) and the Panasonic for $100 more. These were well made solid machines, with solid castings, that weighed perhaps 35 lbs! I suspect that at that time, very few factories were capable of producing such a device!

RCA:
http://vintageelectronics.betamaxcol...delvct200.html
Panasonic:
http://vintageelectronics.betamaxcol...elpv-1000.html

Not what I would call "cheap offshore junk"

jr
I bought my first VCR, January 1st 1982. An appliance store ran a large ad that they open on New Years day and had a Magnavox for $595. I was never that crazy about Magnavox products, but I knew that Panasonic built it and was slightly less expensive.
It was the first one with the smaller, newer design, but still top load.
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  #32  
Old 12-20-2012, 02:55 AM
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I have a 2006 Sharp LC37G2X 37" LCD panel which was made in Japan & it's still working 6 years down the track & the only thing to have went wrong in all that time was in the AVC box when a SM transistor & Zener diode went duff causing the main power supply in the AVC box not to switch out of stand by.
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Last edited by daro; 12-20-2012 at 03:03 AM.
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  #33  
Old 12-23-2012, 01:32 PM
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bandersen bandersen is online now
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I finally got around to this set last night. It works just fine and has a nice bright picture


Here's what I found inside.




Chungwha 370KSB22-TC02 picture tube.




I don't really need it myself so maybe someone will be getting it for Christmas
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  #34  
Old 12-23-2012, 03:18 PM
dieseljeep dieseljeep is offline
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Originally Posted by bandersen View Post
I finally got around to this set last night. It works just fine and has a nice bright picture


Here's what I found inside.




Chungwha 370KSB22-TC02 picture tube.




I don't really need it myself so maybe someone will be getting it for Christmas
Was that set that clean, as found? Looks like low hours set.
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  #35  
Old 12-23-2012, 03:33 PM
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Yes, it really was that clean inside

BTW you can reply without quoting the previous message - just use the Post Quick Reply box. You can also go back and edit old posts to delete the photos links. That will cut down on the picture overload
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  #36  
Old 12-23-2012, 06:24 PM
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Eric H Eric H is offline
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Quote:
Originally Posted by jr_tech View Post
Cartrivision?: http://en.wikipedia.org/wiki/Cartrivision

And I agree about the overuse of the "cheap offshore" label. I bought my first Sony TV in 1972 and never looked back.

jr
In 1972 Sony was the exact opposite of cheap offshore junk, they were probably the pinnacle of quality up until the late 80's or so when they had to start cutting corners to compete with real offshore junk.
The build quality of their early stuff is astounding.
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  #37  
Old 12-23-2012, 06:28 PM
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Glenz75 Glenz75 is offline
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That chassis looks really familiar, back in my TV servicing days, we had a line of sets branded AWA/NEC and Samsung with pretty much the same bottom PCB as in this one. They were actually pretty reliable and did give a good picture so no surprises with this one giving a nice result.

One problem though with these and it looks like your set has then as well, is the rubber wedges that sit in between the tube and the yoke go bad. The rubber goes hard and takes on moisture which then corrodes the copper windings and causes the yoke to short out. I'd pull them out and check to see what its like underneath, you may be lucky with yours as the set is still going. If they are going hard or look crusty don't put them back.

I think the other issue was a high voltage electrolytic cap in beam limiting circuit from memory it was a 4.7uf or a 10uf at 350V - this would leak and you'd get a bright white out raster with fly back lines.

Nice find, the set looks as though its got some life left in it
Cheers Glen
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Last edited by Glenz75; 12-23-2012 at 06:33 PM.
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  #38  
Old 12-24-2012, 09:36 AM
dieseljeep dieseljeep is offline
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Quote:
Originally Posted by bandersen View Post
Yes, it really was that clean inside

BTW you can reply without quoting the previous message - just use the Post Quick Reply box. You can also go back and edit old posts to delete the photos links. That will cut down on the picture overload
Thanks, I'll make sure to do that the next time.
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  #39  
Old 12-24-2012, 05:20 PM
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RobtWB RobtWB is offline
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Nice that the set still works.
I have a real soft spot for sets like this one. Nothing spectacular about them, just good every day watchers, and the cabinet styling while not a thing of beauty sure beats the black, charcoal gray, and silver sets that followed. Always nice to see a red or green LED channel indicator in the upper right hand corner.
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  #40  
Old 07-24-2022, 11:41 AM
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zenith2134 zenith2134 is offline
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Hey guys,

I just finished fixing one of these.

Intermittent shutdown: After warmup, the set will shut off with the channel indicator still lit.

The board is poorly soldered at points. Possibly has been repaired before.

Heatgun tested a few actives in the secondary flyback supply, and sure enough I had a regulator coming off the tuner supply which looked cooked.

Very good cheap sets though!

D1785

Last edited by zenith2134; 07-24-2022 at 11:50 AM. Reason: Added part #
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  #41  
Old 07-25-2022, 12:13 AM
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liammc00 liammc00 is offline
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That is pretty cool old tv and the only thing I have had brands caphart was a extremely cheap record player and radio. Unfortunately the main output transistors we're shorted and the motor was broken do to bad bearings and used the main power switch out of it to fix my 1986 zenith tv. I got zenith tv and caphart both from my grandad along with some other things. Aslo I have a Dell monitor from the 2000s and it has Chungwha CRT
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  #42  
Old 07-25-2022, 02:33 PM
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That's a far cry from the CTC-4-ish only known surviving Capeheart CXC-13 color set I have or the 411 turnover changer console I've got.
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  #43  
Old 10-07-2022, 09:59 AM
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KentTeffeteller KentTeffeteller is offline
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Quote:
Originally Posted by radiotvnut View Post
That's a rebadged AOC TV and I think the same TV's were also sold under the Dumont brand. AOC is referred to by many as "Admiral Of China". I'm not sure of the connection; but, I think there was some connection with the old American Admiral brand and I think AOC picked up when American Admiral ceased making TV's in '79.

I saw quite a few AOC TV's in the '90's and I wasn't impressed with them. Most of the ones I found had bad flyback transformers and replacements were usually not available, not even in a generic brand.
AOC= Admiral Overseas Corporation. Which was the Asian arm of Admiral (which has outlived the USA parent company). And survived as an independent company when Rockwell sold off Admiral.
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