Videokarma.org TV - Video - Vintage Television & Radio Forums

Videokarma.org TV - Video - Vintage Television & Radio Forums (http://www.videokarma.org/index.php)
-   Solid State CRT Televisions (http://www.videokarma.org/forumdisplay.php?f=184)
-   -   1982 Sylvania E32 19" color TV (http://www.videokarma.org/showthread.php?t=255633)

radiotvnut 09-20-2012 03:39 PM

1982 Sylvania E32 19" color TV
 
Here's a 1982 19" Sylvania color TV that uses the E32 single board chassis. Being from '82, it was made after GTE sold out to NAP; but, the chassis is an original GTE design that was carried over after NAP bought them.

The cabinet style seems to be a carry-over from the '70's and I've actually seen the same cabinet used on some later Magnavox, Philco, and Sylvania TV's that used the NAP designed 19C3 chassis.

This set came from a TV shop with a note indicating that the flyback transformer is bad. I have not tested it yet to confirm the condition of the transformer.

From what I remember of these sets, they produced a decent picture.

http://i538.photobucket.com/albums/f...psb02bd97e.jpg

http://i538.photobucket.com/albums/f...psb2e4451f.jpg

sampson159 09-20-2012 08:22 PM

those flybacks arced like crazy.very sharp pics on this model.lots of bad solder joints around the flyback too.

radiotvnut 09-20-2012 09:26 PM

I did some testing and the B+ fuse is missing. I can't find any shorts with my DMM; so, I'm going to sub the fuse with a 100 watt bulb and see what happens. I also checked the CRT and it's strong.

I have a NOS flyback that I thought was for this chassis; but, my original flyback has a lead coming out of the bottom that connects to the focus control. The NOS flyback I have does not have this lead; so, it must be for a different chassis.

bgadow 09-20-2012 10:49 PM

I remember once being given a pair of sets with this cabinet. One was just like this, the other was modular. From the outside you couldn't tell the difference.

jstout66 09-22-2012 04:42 PM

Boy.. I remember those. We sold the Philco branded sets, as a secondary option in our Zenith shop. Zenith's were so pricey, my Unlce figured he better carry another line as well, so as not to loose a sale. They were the only ones that came close to Zenith picture quality, but I do remember he had quite a few warranty repairs. Not as bad as our GE fiasco in 1979 tho.......

radiotvnut 09-24-2012 08:05 PM

OK, the flyback is confirmed bad. After not finding any obvious shorts in the HOT circuit and with any of the sources that come off the flyback, I substituted a standard 100 watt light bult in place of the B+ fuse. The result was that the bulb lit up brightly; which, indicates a short. I then removed the flyback for testing on my Sencore flyback tester and it failed the ring test.

So, the hunt is on for a good flyback for this set. There is no part number on the flyback; but, the chassis number is E32-4 and it's in Sam's number 2034-1. If anyone can get me a part number or a good flyback, I'd appreciate it.

radiotvnut 10-02-2012 12:52 AM

BTW, here's a video I made of me testing this set and I managed not to let any of the magic smoke escape.

http://www.youtube.com/watch?v=IV4M7SqmAqo

DavGoodlin 10-04-2012 10:26 AM

Great video. You could teach a course in safe and effective troubleshooting.

I worked in a shop 1981-82 when these were coming into the shop with this problem...from the warehouse! 1976-80 Sylvania-Philco sets had nice pictures too, but I was not happy when NAP acquired Magnavox.

Nice use of the VA-48. my VA-48 needs some help, now I'm motivated to fix it.
I have a Heathkit HV-meter w/ ring test that does something similar with 6 positions. It was almost never wrong.

radiotvnut 10-28-2012 07:39 PM

I found out that the part number is 50-3015344-2,-1 with no generic parts listed in the Sam's Photofact manual.

wa2ise 10-28-2012 08:18 PM

That chassis/circuit board looks a lot like RCA's of the 80's.
http://i538.photobucket.com/albums/f...psb2e4451f.jpg

julianburke 10-30-2012 08:10 PM

Using a light bulb to see if there is a short in the HO is nothing new. It was covered in TM's 30 years ago. This E32 set was sold under Philco, Sylvania and Magnavox with Philco being sold as the lowest price model. At least half of all these sets sold needed a flyback before the warranty ran out. They were manufactured right here in Greenville, Tn. and I fixed countless numbers of them. They had a terrific picture when they worked and many were sold to motels.

sampson159 10-30-2012 08:36 PM

very good video.i prefer the e21 chassis that used a tripler.never see a bad flyback in those sets.regardless,those sylvanias produced terrific pictures.well done!

radiotvnut 10-30-2012 10:46 PM

Quote:

Originally Posted by sampson159 (Post 3052810)
very good video.i prefer the e21 chassis that used a tripler.never see a bad flyback in those sets.regardless,those sylvanias produced terrific pictures.well done!

Well, I have two E21's and an E24 that are on my list of things to fix. I too prefer the older models with the seperate flyback and tripler. About the only time you ever see a bad flyback with this type of arrangement is if the tripler shorts and burns up the flyback (have only seen that happen in Zenith CCII's).

radiotvnut 10-30-2012 10:48 PM

Quote:

Originally Posted by julianburke (Post 3052806)
Using a light bulb to see if there is a short in the HO is nothing new. It was covered in TM's 30 years ago. This E32 set was sold under Philco, Sylvania and Magnavox with Philco being sold as the lowest price model. At least half of all these sets sold needed a flyback before the warranty ran out. They were manufactured right here in Greenville, Tn. and I fixed countless numbers of them. They had a terrific picture when they worked and many were sold to motels.

And, to hospitals. At one time, our local hospital had a bunch of them in patient rooms. They had digital cable ready tuners with a red LED channel readout and a 3-wire power cord.

tvcollector 11-13-2012 08:12 PM

1 Attachment(s)
I just found one for $10 that works..

sampson159 11-13-2012 08:42 PM

surprisingly,the thrifts here are full of these sets.10-20 dollars for players with digital tuners.the rotary tuners go for a few dollars more.as i ve said before,very good sets that held up well through the years

tvcollector 11-13-2012 09:00 PM

I think the fly is going on mine too.. I just noticed a pop noise every once and a while, and the screen twitches in a small area when it does it..

bgadow 11-13-2012 09:39 PM

A friend of mine is a major hoarder, of just about everything. I was finally able to walk through his main building last week and he had one of these Sylvanias in there. At some point I'll have to ask him about it, if only for parts.

Jeffhs 11-14-2012 10:03 AM

Quote:

Originally Posted by sampson159 (Post 3054040)
surprisingly,the thrifts here are full of these sets.10-20 dollars for players with digital tuners.the rotary tuners go for a few dollars more.as i ve said before,very good sets that held up well through the years

I thought it would be the other way around -- the digital sets would be priced higher than the rotary ones. :scratch2:

sampson159 11-14-2012 06:17 PM

has to do with the thought by their experts that the rotary dials are somehow older.digitals are labeled cable ready.rotaries are labeled vintage.

radiotvnut 11-27-2012 01:46 AM

It's fixed.

http://www.youtube.com/watch?v=mP12dVsXHKA

sampson159 11-27-2012 07:32 AM

looks good,congrats!those were decent sets that had excellent crts.they made a fine picture.

DavGoodlin 11-27-2012 01:00 PM

Good Job R-T-P-N, it is very interesting that NAP did not mess with a good GTE design for at least a few years. I assume the Philco-branded sets of this era were identical.

radiotvnut 11-27-2012 04:21 PM

They were. Several years ago, someone gave me an '81 Philco (GTE) that used the same chassis. It had about twenty million hours on it and the CRT was weak. I rejuvenated the CRT and watched it for about a year, until the CRT started getting weak again. I ended up giving that set to the junk man.

My Philco was in a different style cabinet; but, there were Philco's and Magnavox's that looked just like mine.

mpatoray 11-27-2012 11:06 PM

That set looks great! I really need to get to the 2 nice color sets I have, a 1976 Sony 19" and a 1979 Zenith System 3 space Command with Space phone.

radiotvnut 04-17-2021 04:12 PM

Well, this set stayed in my basement until recently, when my GE CTC136 chassis popped it's flyback and I pulled the Sylvania out to put in it's place. The Sylvania played for a few minutes and shut off. At which time, I put it to the side and pulled out a Zenith to use.

Here lately, I've been under pressure to get rid of some things and I pulled the Sylvania out to see if it was an easy fix. All I can tell you at this point is when you turn it on, the HV comes up and the set goes into shutdown. Clipping a meter to the 112V line so that I can see what the B+ is before shutdown tells me that the B+ is running way too high. The switching SCR test questionable (in circuit) and, at that point, I put it back together (I don't have the time or the bench space to really dig into it right now). Later, I may dive into it or it may end up going to the dump. On one hand, I hate to toss it; but, on the other hand, I can't keep everything.

ed857 04-19-2021 09:40 AM

I seem to remember a 15K in the regulator circuit around the B+ adj. pot that would open causing the B+ to be high.

KentTeffeteller 04-20-2021 10:59 PM

My late Grandmother had a knob tuned Philco in this screen size. She bought it in Athens, Tennessee from Plaza Electronics in 1981-1983. Her set was reliable the first 18 months, then ate flyback transformers. Replaced a few. Weak and dim CRT is what finished it off after one rejuv. She then had a 17" Zenith and it lasted until 1987, lightning got it 3 times. She bought a 17" Sanyo in 1985, a Forrest City ex-Warwick plant set she bought at Wal-Mart for her bedroom. It lasted until just after she died around 25 or so years later. In the home my Mom and I share in Athens.

vortalexfan 04-27-2021 11:34 AM

I have a 1974 vintage GTE/Sylvania 25" Console TV that I got from my next door neighbors and they were the original owners of it, its a knob tuned set, and a low hours set as well, because they mainly used it as a decor item because it was in their family room in their basement and they used it very sparingly.

It has a great picture and I use mine for retro gaming (Nintendo Entertainment System, Super Nintendo, etc.), or as our good friend Shango says: "Its Gamers Choice!" :thmbsp: :D


All times are GMT -5. The time now is 07:50 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.