[ICOM] PRO III bias setting

[hamop]

THANK YOU Larry! That is what we need.  Thanks for the effort in putting it 
on paper for us.
San

-----Original Message----- 
From: Larry Benko
Sent: Sunday, August 12, 2012 12:05 PM
To: icom at mailman.qth.net
Subject: Re: [ICOM] PRO III bias setting

These manuals do not include the SERVICE manual which is what he needs.
I have the service manual in pdf format and it is 24MB. Chapter 4
describes all the adjustments.  Page 4-4 says measure idle current and
adjust R14 driver) for an increase of 1A, then adjust R16 (driver) for
an increase of 1A, then adjust R65 (final) for an increase of 1A, and
finally adjust R67 (final) for an increase of 1A.  Procedure was started
with all pot. fully CCW.

This would imply that all 4 devices in the driver and final section have
a quiescent bias of 1A.

Larry, W0QE