This is the 2nd TS-700a in a group I got from a local friend. These are great rigs, manufactured around 1976 for $700!! Every one of these I've ever worked on, had me chasing my tail with weird symptoms that were ALWAYS traced back to a dirty band switch, a dirty mode switch, a dirty repeater offset switch, and/or dirty toggle switches. As a result, the _first_ step of servicing these rigs is a thorough cleaning and lubrication of all rotary and toggle switches. This one was no exception...
This rig was totally DOA. After cleaning and lubrication as mentioned above, I discovered the MH6P 6pdt relay was totally missing. I replaced the relay, and it came alive and was a serviceable radio. FM was inoperative, and that was traced to a faulty 10.245mhz crystal osc transistor on the FM board (also very common on these rigs...it's usually the crystal or the transistor). A replacement transistor, cleaning of the multi-contact plugs on the crystal osc board, a full alignment, indicator lamp replacements, and it was good as good as new. Here's a few pics and a vid...
