sylvania color set (23v rectangle) - Page 3 - Videokarma.org TV - Video

DaveWM · #31 02-15-2014, 08:29 AM

after screwing with the center conv for way too long I finally figured out I had the blue lateral assy off 90 degrees (I swear I thought I had it back on the way it came off) It kept shifting the R and G dots. I finally decide got it in the right position, and then the worked as is should. Screen shots and video to come later.

DaveWM · #32 02-15-2014, 01:26 PM

http://www.youtube.com/channel/UCxMsHgfGwCVtyRrqXVtll-g

I noticed on the video the greens seemed muted, do not recall seeing it that way live, but will check out a bit more. I prob just have to do a bit more touch up of the green as the grey scale may have been a bit too blue.

It uses a RCA type demodulation circuit (although not a clone). So if there is a weakness in the signal to the green I am sure I can figure it out.

I did a color bar on it early on and it seemed fine.

DaveWM · #33 02-20-2014, 05:14 PM

Quote:

Originally Posted by Carmine

Thanks. I enjoy following the threads and seeing the improvements, but youtube just isn't a practical option for me.

here are some stills the 1st is a picture the orig owner had showing the 1969 moon landing, then today and today with some programming on it.

sampson159 · #34 02-20-2014, 09:59 PM

i love these sylvania sets.they were overlooked as far as quality but when they were right.they were equally as good as the rca and zeniths.

DaveWM · #35 02-21-2014, 07:13 AM

indeed the pic is every bit as good as zenith or RCA. Its incredibly easy to service, as the tuner plugs in so you can pull the entire chassis very quickly.

The one thing you have to be careful of is not to lift the traces on the pcb.

The copper seem thinner than normal for say RCA sets. On the couple caps I did remove I had some trouble there. I exercised normal care with respect to desolder practice. Good thing there was very little to replace as the only one I did was a single bumble bee that was mounted on the bottom of the set. I was having some issues with the pin cushion tube running hot so I checked a couple cap in that circuit, this is when I noticed when resolding after checking (they were ok, I decided it was the tube) that the solder on the pad did not look "right". closer inspection proved the pad had started to curl. Anyway that being said its working fine with all the orig caps, including the electrolytics.

BigDavesTV · #36 03-04-2014, 11:30 AM

Nice "Sly-vania!" Good job on the CRT install, it sure is nice (and rare) when you run across a good emission older CRT, must've been low hours on that 'Maggie tube.

DaveWM · #37 03-04-2014, 11:55 AM

it was grand ma's set per the owner, my guess is G ma was not one to just turn it on and leave it, but rather from the generation that did not watch a lot of TV but for the wonderful world disney and other special events.

I too was stunned to see such good performance.

Carmine · #38 03-05-2014, 11:49 AM

Quote:

Originally Posted by DaveWM

here are some stills the 1st is a picture the orig owner had showing the 1969 moon landing, then today and today with some programming on it.

Thanks for the photos. The moon landing shot was interesting... I bet a lot of people did that.

DaveWM · #39 03-27-2014, 04:44 PM

https://www.youtube.com/watch?v=plzUqSMfxn8

got it tuned up some for other channels, here it is before the soon to be gone analog signals on the cable.

BigDavesTV · #40 03-27-2014, 06:47 PM

Wow! I just watched the You Tube video of the latest progress, great job on the Sylvania, really good sharp color picture! Really nice looking set.

DaveWM · #41 03-27-2014, 07:05 PM

Thanks BD, yea it came out really nice. It is as good as my RCA or Zenith sets, of course a lot of it is the Q of the CRT. That was prob one of my best deals, free set and a 5$ CRT

I like these kinds of deals helps keep the avg per set cost.

sampson159 · #42 03-27-2014, 07:34 PM

watched the video.set looks great.i had a 19 inch metal cabinet sylvania.it had the best picture!great.great set that lasted forever.it was in use right up to 1985.crt was still strong but the flyback burned up.i decided not to repair it.now,i would love to find one

DaveWM · #43 03-27-2014, 08:02 PM

thx Ron, yea a 19" metal set would be nice. That's the one thing I would like is a nice mid sized set. I jump from the portacolor/trinitron (K1212) to a 23v.

The thing I like about this set is its different, not a clone. and I can't remember if I changed anything at all in it (maybe one or two caps), I think its all original (but for the tubes). Guess Sylvania was using pretty good parts. I do know the pcb was pretty delicate so I am glad I did not have to do much (the traces would lift very easy). Oh and the tube sockets were bad but had been replaced (some of them). they are those white plastic type that has the crumblely plastic.