Mechanicals of Sony MZ R90 minidisc

Anyone familiar with the mechanism and any close up pics out there? Owner buggered up the mechanics trying to get to broken power socket. I suspect the mechanism that lifts the magnetic head arm out of the way for disc in/out access, is only fully engagged with the disc, via a motorized yoke, can anyone confirm? Not just the process of hinging up and down the closure flap. Any pics, out there, of the mechanism at the long-axial rear of the battery pod, probably disc-in switch and a piece of black plastic with a slot in it and an aluminium end of arm that probably should be in a small rectangular location hole in part of the complicated periphery metalwork. But that corner is distindly out of kilter.

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N_Cook
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There's a lot of useful technical stuff on all minidiscs on

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N_Cook

With exploded views off manual on ^ and a bit of 3D jigsaw-puzzling managed to work out which bit went under/around which, at rear of batery

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N_Cook

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