Sony MZ-G755 Recording MiniDisc MD Walkman FM /AM Radio Type not powered ON

Cosmetically, the casing is in very good condition with a few small marks on the back. the front panel buttons all make ‘click’ contact with their underlying switches. The minidisc load-and-eject mechanism operates correctly, and the observable internal components look to be in good order (see photos). However, the unit will not power up. I have tried both the recommended SONY transformer as well as batteries to power the unit, but nothing happens when the ‘play’ button is pressed. Only the player/recorder is for sale (no accessories). The unit will be well packaged, and despatched with tracked delivery

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