Marantz CD 94-New Belts and Braces!

 

There are two common problems on the Marantz CD 94: the CD tray can often stop opening and closing, and the on /off switch breaking. The CD tray failing is normally down to worn drive belts or occasionally the commutator of the drive motor becoming clogged with grease.In this case, the motor checked out fine so the belts were replaced and all grease or scarf cleaned off the pulleys and other moving parts. Special plastic grease was then applied sparingly to the moving parts. However, the new belts did not cure the problem despite all parts moving freely as the small pulley wheel on the tray closure mechanism was still slipping. The solution was to add an extra drive belt to operate the tray closure solenoid. perhaps the pulley had become poised over the years, but two drive belts is now giving perfect, reliable operation.

The on /off switch fails because the plastic operating arm is very flimsy, despite the battleship build of everything else. So I re-fashioned a new end of the operating arm from epoxy and the on /off switch is now working reliably again.

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Audio Innovations 300

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Yet another Audio Innovations amp in the workshop! This one shows the ravages of a long life but still works very well. A quick service and it will serve the owner for any a year more!

Marantz CD 94 and DAC CDA 94

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This CD player and matching DAC came in for servicing and repairs. The on /off switch on both had failed. There’s no spares available so a bit of ingenuity with some epoxy resin and away we go. I guess I could be printing new parts with a 3d printer sometime soon!

The tray on the Cd player was also faulty-a very common fault with these machines but then they are around 35 years old! New belts will be fitted and if that doesn’t sort it, the drive motor will be stripped and cleaned.