Main Index 1 Mar 2004 @ 07:32:15 UTC Not logged in.  Log In  

Date: Tue, 18 Dec 2001 08:01:30 -0800 (PST)
From: colin martin 
Subject: 706 mk2 trx repair

i believe i have found the fix for any 706 mk2 that
refuses to transmitt on any band/mode and gives a full
bar display on alc when trying to transmitt!

there are two diode packs ( surface mount) on the main
bd d13/14 and d22/23 these are ISV265-tl devices and
they are responsible for the problem. there is most
likley only one diode gone short, passing the dc
voltage to the alc circuit and blocking the trans freq
in the process. this seems to have been a rare but
very hard to find fault on several 706's.
from m5aet see my page, living in france. best 73's to
all colin f/m5aet/p


Return to the mods-i-k file section.