It did have a fine picture it was a great set I had a admiral remote for a rat tuning and certain keys would turn on - off and so on, so I did not need the oem remote. In Atlanta zenith, rca and Sylvania's were everywhere. I have a soft spot for Sylvania and zenith.

I tried Motorola and Zenith clickers which work to a point. The remote in my original post is fully compatible, it just needs some DeOxit.

If you are talking about the 15-37700-1 and 15-37701-1 (ECG792/793, in later chassis, the ECG794) processors, I don't think his E48 uses them. I had a similar set in the early 90s and had no problem with an Atari or NES connected. I did have to randomly replace the stupid 1 ohm 1W fusible resistors for the vertical - they would go at turn on, and a recap of the vertical fixed that.

The ECG792/793 pair was obsoleted, but remnants remain on eBay and with old-school distributorships. I have one of each - in original NAP bags.

Jon post some pics of the chassis please I would like to go memory lane. This brought back memories of when my dad and I had our shop.

I always liked working on Sylvania Supersets. It seemed like they always produced a fantastic picture, and were relatively easy to service.

Even in the 1990's, there were a couple of IC's that were nearly impossible to find. If I remember right (this is going back 20 years), the most common problem caused by the discontinued IC was no color. Without the internet to help, it was much harder in those days to locate discontinued and rare parts.

I remember one customer in particular who chewed me out royally, and accused me of trying to somehow cheat him when I told him I couldn't repair his Superset because I couldn't get the discontinued chip. He then took his set to another local shop, who charged him $25 for an estimate....and ended up telling him the same thing.

I haven't had the back off - I still need a proper 1/4" drive (I was using a 1/4" drive multi-bit screwdriver and the end got stripped) - but I do have this for now, which I think is cool.

It was easy enough to get this screw out by hand.

Yep that chassis had two chips that was discontinued. 1 for color and the other was for sync separator/osc ic for vert and horz. I had plenty of the color but no sync chip. When the sync chip would go out the picture would look it was scrambled like the old pay cable stations would look.

Thank you Jon take your time, but that's it so from what I see so far. Man that's a great set pop a zenith tube in and the picture will blow you away. We if had the internet back in the day hard to find parts would be easier find. If I remember right I had a that Sylvania had a rat tuning set that was really nice cabinet I waited years to run across some chips but I scraped.
Think Atari 2600 would be ok I think it was Nintendo's was not good to some sets. I think that was because the rapid sync and color changes would over tax the ics and make the chips run hot and then go out.

Good to know that they cross to the ECG792/793. I'll keep an eye out for extras.

I replaced the screen shot on the last page. The new one still doesn't do it justice, but gives a far better impression of the color gamut.

If you look closely the picture curves downward at the top and there's a bit of wave near the bottom. Could the sync separator be causing that?

Easier access to older TVs, parts... well, just about anything older is one of the things I like best about the internet.

Your set has only the 15-37701-1, an ECG793.

E42 and earlier chassis used the 792/793 pair, but in your set, instead of the 15-37700-1, you have a 15-43212-1, which crosses to an ECG820. It is the improved version of the old 15-37700 chip, which produced flagging sync/sync unlock, or an out of freq lock when a VCR was connected. They also had problems with the VIR signal, so Sylvania had to upgrade the chip. For this reason, they obsoleted the 15-37700 chip once stock was depleted. I'd venture to say that half of the chips replaced did exactly as they were designed, and that they were replaced in error. Huge learning curve when you couldn't get stable horizontal drive. We figured it out with a VA48, and later had that confirmed at a service seminar. The VA48 ouptut lacked the VIR signal, and told us that the set would operate normally, and act up on VIR signals. Only one station here transmitted VIR at the time. The VCR problem was another headache. My Superset was an E48-5, a close cousin to yours.

Keep your normal/service switch happy - mine got dirty, and I had a nice vertical bounce. Flicking the switch a few times clears it up. Great CRTs..

Here's the layout for the E48...

Super, thanks.

I flicked the service switch back and forth a few times. The picture still dips at the top, but the bottom seems to have improved.

Huh? The CRT *isn't* a 25VDMP22? I thought that was the only delta-gun Sylvania CRT with the dark face.

There are far more black matrix (you call it dark face) CRTs than the VDM. Sylvania used the latest - the VDM was long in the tooth by then... Sylvania used the 25VCZ, VDM abd VFA CRTs in the E41, 44, 45, 46 and 48. The schematic for the E48 shows a VDM, and the E45 layout states the CRT type is determined by the cabinet - ears/no ears, I guess...

Oh yes I have seen and heard of plenty of black matrix CRTs, but the VDM was the only delta I knew of with such dark glass.

Time to fulfill your request. I just had to find out for sure what CRT is in it (25VFAP22), so I used an adjustable wrench to get the back off. I just updated the Flickr album.

https://www.flickr.com/photos/spacec...57654866509318