Thanks for reading. Just this weekend, my TS-940S/AT started acting very strange. The digital display started going from normal to "dots" and back again.
The TS-940 has a history of problems after the radio has been "unused" for long periods of time. I owned one for over 12 years and have worked on numerous others. Usually the problem is simply a connector inside that is not making good contact or has some corrosion. My first step would be to remove all the covers and fold down the face of the radio and "re-seat" all connectors that you can get to. That includes all the small coax cables that plug-in on the bottom side of the radio boards. Be very careful in handling some of these very small connectors and wires and insure that all wires are out of the way before replacing covers, etc.
However, I'd say to start with the connectors going to/from the "digital" board that is just under the top cover. The components of the board are enclosed in a metal cover - all connectors run around the perimeter of the board. Un-seat and re-seat all of them several times (which wipes the connection).
Sometimes the RAM back-up battery goes south (mine did after long storage) and makes funny things happen. I replaced mine with a similar (but not exact replacement size-wise) one from Radio Shack.
Also be aware of the "reset". Press and hold A=B key as you power up the radio to clear any bogus data that may be in the RAM (caused by, you guessed it, a bad battery).
And another'sWell, I removed the covers, dropped the face down and reseated the connecters. I just powered the radio on and everything is working right!!!
Thanks for making my day guys...I really appreciate it!
You saved me a trip to the repair shop and several $$$.
Thanks to eHam.net for providing this forum, also - IT WORKS.
http://www.eham.net/forums/Elmers/20119Well here it is March 2006 I fixed my TS-940S display problem by what was suggested here, Droping the faceplate & resteting all connectors. I had exact problem discribed here and fixed problem by suggestions
here. Thanks for the help from 2002. Glad eham maintains these groups.
Thank You!