[Kenwood] TM-255A Power On Problem

[John O. Newell]

Hello all --

My TM-255A has developed a power problem.  I have used it
intermittently today with no problems on TX or RX.  I
powered it off, then came back later and tried to power it
back on.  No go.  I've checked the obvious...power supply
and lines are good, all fuses good, connection between front
panel and chassis good.

I would be very grateful for any other suggestions for
diagnosis/follow-up on this.
 
Tks and 73
John Newell
KB1FPM
in blizzardy Massachusetts