[Icom] Need Help with IC-451A

Mike Baker K7DD [email protected]
Sat, 8 Mar 2003 01:03:56 -0700


Hello there,
	I just picked up a used (little did I know how used) IC-451A off E-Bay.
Looks ok on the outside, but when I hooked up AC power, NADA.  The DC
connector is one I don't have in my box of tricks yet so I opened it up to
look around.  Some of the coil slugs look like they have been adjusted (PLL
readjust perhaps) but I'll cut to the chase.  Is there a jumper used on the
DC connector when you use the AC supply?  I ask because there are 4 wire
connected to the 4 pins so I was wondering if there was a jumper between the
middle two when on AC?  That would account for the AC supply not working at
this point.  ALso, there is an UGLY large multipin molex connector for
accessories.  Is there supposed to be a jumper plugged into it during normal
opperation?
	ALSO, when I opened it up, there is a yellow wire exiting the power amp box
(along with a white, a gray) all in a small piece of clear tubing.  The
yellow wire is just wraped around the others (only one turn) and just
hanging out.  Not attached to anything and it doesn't appear to have been
soldered to anything although it is tinned.  Don't know where it is suposed
to go or why it was left "dangling" in the breeze! From the same hole in the
amp box there is a larger red lead. (For referance only.)  Any clues???
	Anyone got a spare manual (opperation or service with schematics) they
wouldn't mind parting with reasonably?
	Also, I didn't get any mic or power cords so If you have a spare hand mic
and an old power cord (DC) I would be interested in those as well.  Looks
like I may have myself a "project" radio. Any input would be appreciated.
	Thanks in advance for your time...

Mike Baker  K7DD
[email protected]