I’ve just finished adding a “manuals” page above to house some of the old gear manuals that I have. Right now, there’s only the Sony MXP61 there. I didn’t see this info anywhere else, so I’ve just finished scanning it and that’s where it’ll live. The MXP61VU is a great little desk, with individual channel strips. The schematics show a provision for direct outputs at one of the circuit board connectors, but this feature was
never implemented. There is, however, a pair of cascade input and cascade output connectors that are likely to never be both needed, so one of these could be converted into a direct output mult without major surgery.
Any vintage mixer could likely use some new capacitors, and could also benefit from updated operational amplifiers, and this one is no exception. But this model features typical Sony construction… it’s built like a tank.