Marantz CD63 Mk2 disc spinning like mad

[studiostevus]

I pulled my old cd63mk2 heavily modded from the moving boxes after some years. Unfortunately the cd mechanism is failing on me. I actually already replaced the laser with an eBay one but get exactly the same

When closing the tray (with or with disc), the motor spins back and forth a bit, and then starts accelerating like there is no tomorrow, and not stopping. It does this regardless of whether there is disc loaded or not.

Error code 02 and sometimes 10… where do I start with this one?

 

[madis64]

So it was working before "boxing" and it is not working after "unboxing"?

 

[studiostevus]

Correct but there are several years between the two

 

[madis64]

Grease/lubrication, capacitors, cable contacts, rail voltages...
Difficult to suggest anything without details of the mods.

 

[galac]

The older Philips-Generations shows a similar behaviour if there's no clock signal present on the decoder (i.e.7210, 7310) due to modifications or component fails.
Check Pin 13 of the SAA7345 - there should be 16.9 MHz.