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Hi all,

I'm repairing a couple of 7602 MkIIs, each with their own problems. Does anyone have experience with those or maybe even have access to a schematic or service manual? I have looked at some Neve 1073 schematics, since it's supposed to be a clone of those, but there seem to be enough differences outside of the tone circuitry that they're not terribly helpful.

One of them has a ground hum, and the other has a volume drop when using the HPF set at 50 Hz. A schematic would make the ground hum hunting a ton easier. I also tried powering on the one with the HPF issue and I'm not even getting the LEDs lighting up. I'm hoping that I don't have to figure out the circuit on the power board to track that issue down, so a schematic would come to the rescue again.

Any help would be much appreciated. Thanks!

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