Hi everyone, I am back with more pictures and questions
I managed to clean up the front panel with some alcohol. I need to modify a hex nut socket so I can remove the big collet knobs, and figure out how to remove the deeper yellow staining.
I also noticed this neon bulb that isn't working properly. I tried gently pulling and it wouldn't come out. Are these plastic sleeves sockets, like for tubes, or do I need to desolder it? I have never seen them before...
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you have a fried resistor there beside the fuse. There must be a problem what enhance the current there to destroy it. This is mostly a defect electrolytic there.
Your next to do will be: swap the bad resistor to a working one check the electrolytics there for bad isolation (current while loaded) Look again to your neon bulb when it`s done :-)