i got your old system 8, man.
bought it from adam in cleveland, couple of weeks ago.
i do have a multimeter and i just opened the board last night so i can do the DC test. What
am i looking for? Just for the readings to be the same?
There's a few things going on with this board and
i'm trying to see what needs to be repaired.
I've tested the caps by running an oscillator thru
the boards's inputs and the busses and master came out pretty good, everything under 0.5db
difference [i've run a 1k osc and set everything
at 0db then ran a 20hz, 50hz, and 15k osc] but
the channels were kinda off, some of them by
1.5db. I've looked inside and the caps looked fine though.
Another thing about the scratchy pots is that some of them, like the gain pots, are not putting
any signal through sometimes unless i turn the knob to about half way then the sound kicks in.
Some of them get kinda distorted also when pushed close to 10, and some of the eq pots give
some nasty pops when pushed close to the max.
Thinking this is a semi-modular design i figured
i can open it up and take some of these channels
out to either clean or replace the pots but it doesn't seem that easy, there are about 20 wires
that run from one end of the board to the other,
through every strip's board so i'd have to cut them in order to get the strips out. Not really wanting to deal with that