[Kenwood] TS-820S rear panel IF connection

[jkerby]

Howdy,
 I'm returning a TS-820 to service with a, new to me, R-820. I've re-capped
the TS and am involved with alignment to ready it to be used with the R. I
have not done the necessary mods to take the IF injection from the R-820
yet. I've had very good luck with the alignment and put it on the air to
test it out a bit. It seems the receive audio is a bit raspy and the IF
shift knob must be turned a bit off center to make receive audio sound
correct. I find that the IF connection to the rear panel is widely varying
from 6.9 MHz to 7.1 MHz with little measurable amplitude. If I'm right it
ought to be on the order of 8.83 MHz and ~.5V. 
 Am I on the right track and are the raspy audio and off center IF shift
related to the flaky, to me, rear IF output measurement?  
73, Jeff  /  N4YU