Zenith Chromacolor console no video

[dieseljeep]

Originally Posted by StratLou

You live and learn. Won't do that again. I have looked around the chassis in various places and cannot seem to find the chassis number stamped anywhere. Was that ever done and, if not, how can I find out which of the 2 chassis I'm dealing with? The only number I did find stamped onthe back of the chassis was 6003419 but I'm guessing it doesn't mean anything. And then, if it's the 56 chassis how will I tell if it's early or late production as bgadow alluded to. Thanks guys.

I'm 99% sure that your set is a 27dc56. Your chassis picture shows no shaded components. It does use the voltage regulating power transformer.
The "D" models are 1973 model year. That's possibly a later probuction set.

[StratLou]

Originally Posted by dieseljeep

I'm 99% sure that your set is a 27dc56. Your chassis picture shows no shaded components. It does use the voltage regulating power transformer.
The "D" models are 1973 model year. That's possibly a later probuction set.

Is it safe to assume that none of the shaded components could be on the underside of the board (I haven't looked yet but plan to remove the bottom cover to see what's there)? Which one of these schematics, then, should I be looking for:
"early production chassis 25DC56 is in folder 1312-3, late production 25DC56 is 1375-3" if these would be the only possibilities. Thank you.

[dieseljeep]

Originally Posted by StratLou

Is it safe to assume that none of the shaded components could be on the underside of the board (I haven't looked yet but plan to remove the bottom cover to see what's there)? Which one of these schematics, then, should I be looking for:
"early production chassis 25DC56 is in folder 1312-3, late production 25DC56 is 1375-3" if these would be the only possibilities. Thank you.

All the shaded components should be on top of the chassis. The parts that are mounted under the chassis are marked as such. The late production Sams would include all the latest engineering changes.

[StratLou]

Well I tried the Sam's Photofact Index site which had me downloading a huge file, then a zip file which unzipped to a Microsoft Access file, but then Sam's says don't open the file using Access, etc....Needless to say, I got nowhere trying to obtain the schematic. So can anyone tell me how or where to find the schematic for the 25DC56 chassis so I can get started. I didn't think the frustration would start so early. Many thanks again.