[R-390] looking for parts

[Scott, Barry (Clyde B)]

John,

The microswitch isn't all that hard to fix.  Drop the front panel, disassemble the mode switch and it's right there.  My Motorola would not turn off when I first got it.  I cleaned and jostled the actuator and the microswitch started working again.  By the way, these are designed such that the actuator has to pop "up" to break the connection.  If it doesn't turn off, the actuator is stuck in the "down" position.

Barry(III) - N4BUQ


<snip>

     Now it wont turn off. The filaments stay on as does the dial lights. 
Looks like the micro switch on the function switch is staying closed. That 
sure looks like a pain to get to. Oh well I always wanted an instant on 390. 
Its always in standby this way.
     I remember someone saying that this is not good though.
              Learning the 390 the hard way,   John