No battery.  I spent 2 days looking through the schematics and the radio looking for a battery.

I recently tried with only 1 frequency in memory.  It locked up within 15 minutes. 

I have an 857 in my truck and lately, it seems if I start loading frequencies into memory (either manually or via pc), it will work fine for a while then all of a sudden, the radio will indicate a signal on any memory location, but if I press the mic to initiate communication, the radio will display TX ERROR and will not transmit, nor will there be any audio.  I have found, that the only way to clear this is to do a full reset on the radio.  
If I operate the radio in the VFO's, it appears to be fine.  I am totally stumped on this and have not been able to find any information about it.  Any ideas would be welcomed.

Thanks

Thanks

Thanks

I would like to know how to clean the faceplate keys on an FT857.