OK, I know this is an old thread, but a VERY GOOD one, specially for us Kenwood fans.
I just finished recapping another L-07 mII and I have some questions to whoever done this job before.
The DC offset adjustment is kinda trick. What is the correct sequence? Adjust VR1 until the lowest reading (but not zero) and then adjust VR2? I use a Fluke DMM, but sometimes I wish I used an analog one as mine displays "1" whenever is out of range. I noticed the DC offset reading is not very stable and it is very hard to reach "zero" as indicated in the SM.
As for the bias, I adjusted last night after warming the amp up for about 1/2 hour. This morning, I turned on the amp and measured again and bias was at 30 mV.
After doing all this, should I go back to point no.23 and recheck the rail voltage?