[ICOM] 756 Pro III Problem

[W7RY]

Sounds like a power supply problem to me. Not enough current for the 756
Pro III. What kind of supply are you using?


73
Jim W7RY


-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net]
On Behalf Of Bob Garrett
Sent: Monday, July 03, 2006 6:42 PM
To: ICOM Reflector
Subject: [ICOM] 756 Pro III Problem

Evening Gents:
I thought that before I boxed up my rig and sent it back to Icom, I'd
look to the
collective wisdom of this group for some help.  I've had my Pro III
since March of2005.  The output varies from a high of 90 watts on 160
meters to a low of 68 watts
on 10 meters.  Is this normal?

Lately, I have been experiencing a problem (only noticeable on CW) where
when I have
the RF output full CCW, (maximum power) that more than not, I hear a hum
on the sidetone
and the power drops to anywhere from 8 to 11 watts output.  Also,
sometimes it does
that for a moment and then just turns off and I have to wait ten seconds
till the
rig comes on again.
Now, I've checked the usual suspects, tight grounds, lose coax fittings
etc and everything
checks out.  I suspect the high SWR protection circuit is not working
correctly.
The only challenge is that this often happens when I have a flat SWR of
1 to 1.
Any help appreciated and hopefully, I sufficiently articulated the
problem.  Thanks
in advance for the help.
73, Bob K3UL
----
Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
Icom Users Net: Sundays, 1700Z, 14.316 MHz
Icom FAQ: http://www.qsl.net/icom/