GE 10'' AB/AC chassis - Dead but power supply is fine.

[No-name]

This is an older set.. and I'd really like to get it working. I just can't figure out what's wrong. The only signs of life it has is R980 and a few other large flameproof resistors get warm. Voltages from the power supply are normal. The CRT filaments and HV don't start at all. I checked the HOT for short or open, it seems fine. I also checked every feedthrough and quite a few questionable-looking solder joints... all have continuity. The set appears to have been repaired before (hmm, wonder why) and it looks like some of the feedthroughs were hardwired. Flyback seems fine, none of the windings are open. Since none of the fuses blow on attempted startup, I'm assuming there isn't a major short anywhere.

Model 10AB0404W

Any ideas would be appreciated.