[R-390] micro switch, NOT, need help

[odyslim at comcast.net]

Regards, Scott

----- Forwarded Message -----
From: odyslim at comcast.net
To: r390 list <r-390 at mailman.qth.net>
Sent: Sun, 9 Aug 2009 04:32:36 +0000 (UTC)
Subject: [R-390] micro switch, NOT

OK, I have had it with this radio (R-390A). I was using it the other
night. when turning it off, I noticed the dial lamps were still lit.
OK, I will install a new micro-switch tomorrow.

 After dropping the front panel, I changed out the micro-switch. 
Just for grins, I ohmed it out and it was still good. Uh-ohh. 

 You got it. Changing out the micro-switch was not the cure.
I check the alignment and verified it is working with my ohm meter. I have
been wiggling prodding and ohming the entire radio and cant seem to
find any shorts, broken wires, nothing. I have traced the wires
using a 1972 manual and schematic. I even un-soldered the switch and
ohmed it out. It is good. I then plugged it in with the switch un-wired
and the lamps and tube filaments still come on.

 I did notice the line filter is wired different than most. I reversed 
the wires and blew a fuse so I am guessing the the two orange/ white
wires on the micro-switch are also reversed. I have radios wired 
both ways.

 Has anybody run across this one yet?   

 Any help will be greatly appreciated. I am getting ready to dynamite
this d#&n set!

Regards, Scott
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