PM sentA dozen MJ21194s
I'm thinking proprietary op amplifiers. ie " chip amps " For the MC pre-amplifier.Looking at the schematic those are apparently IC101 and IC102 which seem to be involved with the phono equalization. Probably custom made part like a couple of chips were in my Scott. The pictures I come up with for the 2SK100 they look like the two longer thin black guys to the left of the switches.
I'm at work right now. When I get home to my shop this afternoon I can be a little more of assistance.i could use some direction on how to take outthe power supply board (the board with the 22kmf caps on it.)
ok. i will do that. at first i was trying to recap without taking the face plate completely out and the wires all out. but i see that it is not really possible.Some advice: take out all boards, disconnect the wires, label them and work on the separate boards on the bench.
I didn't find it that difficult to remove that board, you just need to draw a diagram, or take a few pictures, then de-solder the wires then the board can be un-screwed and removed.the wires that bring the AC in from the white fuses are tied in a knot and then soldered so i can get them off
Are you talking about the panel that covers that board? I only did one of these the other day and I am not sure what part you're talking about?ok. i will do that. at first i was trying to recap without taking the face plate completely out and the wires all out. but i see that it is not really possible.
so now i am going all out. I cut the ground wires connected to the power supply board because i couldn't desolder.
now i am having a little bit difficulty taking the front top panel off. the 3 selectors that are connected to those arms behind them have a hex type screw in them that does not let me take the board behind the face off. i hope that made sense.
Just loosen the set screws in the knobs either 1.5mm or 2mm set screws. Remove the paddle knobs.Then slide the shaft extenders off the plastic u-joints. Don't need to disassemble the front chassis panel any further.3 selectors that are connected to those arms behind them have a hex type screw in them