Kenwood TS-430S problem

[N2TCG]

I bought a Kenwood TS-430S, it has one problem. When powering up the display is totally blank and no receive. If i reset the cpu by holding in the A=B button and then power unit on and release A=B button, the radio works fine. I have to do this every time i want to use radio. Has anyone had this problem and if so what is solution? Thanks N2TCG

[coromonadalix]

better chances on

E-HAM
https://groups.io/g/ts430/topic/ts_430s_starting_on_a/75079740
https://www.vintage-radio.net/forum/showthread.php?t=210920
https://www.reddit.com/r/amateurradio/comments/e7dq5/my_kenwood_ts430s_died_today_then_i_found_this/

[Andy Watson]

If i reset the cpu by holding in the A=B button and then power unit on and release A=B button, the radio works fine.

Which suggests the processor and associated hardware is fine but something is stopping it from completing its initialisation. Going for the low-hanging fruit first - does it need a new battery?

[CaptDon]

Does kind of sound like the non-volatile memory battery is dead. I am far more familiar with the 440 model who's biggest problem is PLL unlock due to aging plyobond glue in the PLL section. I think 430's may have the same problem.