Looking for Pioneer VSX-D307 Receiver Service Manual

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I'm looking for a service manual (or at least a schematic) for my Pioneer VSX-D307 Receiver.

Anyone came accross one of these?

I've got +6Vdc on the Front Speaker Ground terminals. This ain't normal. It pops a fuse, or trips open the protection cicuit as soon as I put the screws in that ground the speaker grounds to chasis ground.

I'm sure I've got a cap or some other element shorted, but I can't really find it without the schematic.

Any help?