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I have a Marantz MR 2020 (MR2021) there is dead
A fuse in the house installation was blown and all the power in the house was gone.
I replaced the fuse at got power again, but after that little episode the Marantz MR 2020 was dead.

I have tried to measure some voltage on the power supply, and found a “funny” thing.

In the schematic there is a point where there should be -27 V but i´am measure -43 V
I believe it is on the board (6.2) in the schematic the makes the trouble.

Here is a little cut of the schematic and also the complete schematic.

Can somebody help me to get this fixed ?

The schematic = https://www.google.dk/url?sa=t&rct=j…Fq7AlqAhReJq0Q