Technical questions for the MPC2000xl and the MPC2000
By Ogoki Wed Jan 18, 2023 7:50 pm
Hello all,

First post here. I picked up an MPC2000XL a while back and I am finally getting around to trying to use the 8 outs. It turns out that the output from all 8 outputs is very weak and distorted.

The two fuses on the output board are good, but the voltage at one of them is 11V rather than 5V, so I assume this is the problem. I was hoping the problem was just the regular, as I read that they tend to go, so I replaced it (7805A) to no avail.

Can anybody recommended what I should check next, before taking this thing to a tech, or just sticking with the main outs?

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By richie Sun Jan 22, 2023 9:32 pm
Are your main outs working fine with the 8 out installed?
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By richie Sun Jan 22, 2023 10:22 pm
That's good. In reviewing your original post, did you ever address the fuse problem that you were pondering on?
By Ogoki Tue Jan 24, 2023 7:27 pm
The fuses themselves are fine. I checked them because that came up when I searched the forum for this issue.

But, no, I didn't figure out the wacky voltage problem. I'm not sure where to start. I replaced that regulator, hoping it was the issue (another issue mentioned in other similar posts), but it wasn't.

Any ideas as to what to check next?