Frank Gilliland wrote in message ...
In , ojunk
(OZARK333) wrote:

He is correct about the reverse polarity protection diode.

No, he's not. If the diode was shorted, it would have blown the
fuse/breaker on
the power supply (or melted something else if the supply wasn't protected).
If
the diode was open, the radio would have worked as normal when the power
was
connected properly. Neither were the case.


True, the diode is not causing the problem he is seeing... but it may well
have been damaged at the same time.
After finding the O/C problem, he should replace the diode as they are cheap
enough - and put a fuse in.



Brainbuster.