View Full Version : Need help with '85 dead Zentih System 3


radiotvnut
08-02-2007, 04:42 PM
Hi,
I have a Zenith System 3 (model SB2531N6) from '85 that is dead. This uses the 9-214 main module and a 9-187 sweep module. I have 160 volts at the HOT collector and a brief start up pulse of approx. 60 volts from the start up board. I checked all the transistors on the 9-187 and most of the electrolytic caps. I also resoldered some bad connections on both boards. The only bad part I found was the 10uf,315V cap on the main module. I remember this cap causing the picture to be darker on one side of the screen. I used to see a lot of this type of chassis and it always stumped me (along with other guys I know that fixed TV's for a living). I remember seeing some of these where one module would fail and take out the other board. I can't see buying two new boards for this set; but, it's too nice to throw out. I do have the Sams (2443-2) for this chassis. If it helps any; this chassis is similar to the cheaper 9-181/9-186 chassis. If anyone has any suggestions for what might be the problem; please let me know.

Thanks for your help,
Bryan

radiotvnut
09-15-2007, 11:26 AM
Never mind. Our city had a once a year bulky waste drop off day where people can drop off waste normally not picked up at the curb. I loaded that set up, another beat up mid '80's console, and a newer BPC 36" RCA that had been left outside for months. Don't worry, I won't throw out any tube or decent solid state sets. I hoped to find something at the drop off site; but, the workers throw everything into a dumpster and they won't let anyone take any of it. I'm just glad I didn't spot anything good because I would have gone round and round with somebody. Anything good would have probably been ruined the way they were throwing it in the dumpster.

RaymondLeggs
09-17-2007, 08:14 AM
Maybe someone will build a frankenTV! :lmao:

mr_fixer
09-17-2007, 11:46 AM
Well, it is understandable, we can't save every TV we find. there is just so much room in a house. I only have room for 3 or 4 sets and thats all. If i find a better one i have to eliminate one of the old ones to make room for it. Luckily i can post it on AK and craigslist and there will be a greater chance of it not going to the junk yard.