Grabbed this a bit ago...

[rca2000]

After missing out on that E0-1 Sylvania combo..I found a "consolation prize" a BLOCK from my bank on Galbraith road. A 1987 model NAP set.

Now--a few weeks or so ago--we were all talking about the mid-1980's NAP sets, the "C" chassis models. Specifically--the ones I am aware of...C1, C2, C3, C5 C6 C7 C8 and C9. The first 4 chassis are HOT and have a fly that did NOT hold up all that well. I will NOT pick up ANY of them. Not sure if I remember a "C4" chassis or not. The "C3' was a 19 inch set--also hot--that succeeded the E32 chassis, IIRC. They are shit too...IMHO.

The C6 was the first "cold" one, but I THINK it still had that "shitty" flyback--and had a VERY bad drawback as far as the power supply goes. The feedback ckt for the SMPS, also had it's B+ line fed to the audio amps. If one of them shorted--it would also kill the B+ to the feedback opto-and THEN--the SMPS would sun away--and go into overvloltage shutdown!! The chassis DID look impressive, with fairly large sinks on dual audio amp chips--BUT they were NOT very powerful, and the flys were not real reliable--as in the C5 sets.

Then there was the C7. It was a 13 and 19 incher, and LOOKED to be a cold chassis--but is NOT. it has an SMPS_-but still a hot chassis. But as reliability goes--not too bad. I worked on a lot of them 20 or more years back.

The "C8" chassis was different. It had a different, more reliable flyback (although I DO recall a couple actually "exploding" in FRONT of me, maybe 20 or so years ago--then splitting in half..) and a simpler layout. It DOES have a rather different cold SMPS supply. It uses one transformer--BUT it is run in 2 modes--the normal "run" mode AND a low-tide "standby" mode--wherein it produces a MUCH lower output, IIRC. There are a pair of transistors that drive a darlington SMPS out transistor, and if they get even a BIT leaky or such...it WILL INSTANTLY blow that little SMPS out transistor !! I worked on a LOT of--and fixed a lot of these sets--in the early 1990's. I have not seen one in a while though. I somewhat like them. They are not in the same class as out "favorites" like the Chromacolor sets--but for a relatively modern set (1987 model)...not exactly "junk" either.

The C9 was the final C series chassis, IIRC, and it looked just like the C8-BUT had FULL digital controls for all functions, and nearly NO analog type controls, IIRC. After this came the G1, which also had full digital controls and a much simplified layout--with NO daughter modules IIRC. Then the H series and the P series--all pretty much like the G chassis, but with an SMPS for standby, instead of a line tranny as in the G1--and different vertical ckt. ANY of those sets, G, P and H and the sucessors, R and Z chassis, I worked on many of these, they are pretty easy to fix, and had fairly good tubes in them.

So anyway...I am heading to the bank....and spot a console tv on the curb. I expected it to be an RCA CTC-130 or 149 or such--they seem to STILL be very prevelant---and I am NOT much interested in them. But as I drove by it--I noticed it said "Magnavox" on it. I thougth it might be a C5 or C1 set--NEITHER of which I wanted. I pulled into the center lane--and jumped out of the car for a quick "look see". I was unable to find a chassis #--but it was mag. in Dec. 1986, and had AV in/out. So, I figured it was either a C5 or C6. After a bit of hesitation--I decided to go and get the van--and grab it. Had it been a C-1 o0r C5 or such-_I would simply sit is BACK out in the garbage, likely whole, this coming week.


I made it back in the van, about 30 mins. later, and tossed it in the van. I then took it to the mall, where my sister was, and took a quick look at the innards. I expected a C-6...but was greeted by a C-8 chassis. Cold chassis, nice layout.


SO--this will likely be a "keeper". As modern sets go--not too bad. NO metal in the chassis, other than sinks. Certainly not like an "old classic"...but typically for a late 1980's set. The tubes were not too bad in these, IIRC, and the cabinet is not bad--a bit of bubbling on top(probably was rained on), but not bad, and looks clean inside. I will put it in the garage, and the 21FJP22 sitting on the floor(sitting on a piece of foam), will likely go on top of this set.