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Old 12 June 2019, 01:53   #1
oggie
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cd32 motor does not spin disc at all

So my cd32 won't spin a disc at all. It recognizes when the lid is closed since you can hear and see the laser move. The spindle moves freely as well, so nothing is jammed.

I replaced the laser module, but it behaves the same way.

Any suggestions on what to look for? I put a multimeter on the leads of the motor, and there's no voltage going there, so it appears it's not even trying to turn the motor.
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Old 12 June 2019, 02:02   #2
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These cdrom drive look pretty common... Any idea what other devices they might be used in so you could scavenge them, or were they custom for a cd32?
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Old 12 June 2019, 13:16   #3
klokwirk
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I had exactly the same issue recently when I installed a new laser in my CD32. It turned out to be that I hadn't removed the small solder blob on the laser unit before installing it. I got rid of that and it now works perfectly.

There is a youtube... watch at 6min 05 seconds
https://www.youtube.com/watch?v=10-SJJRu5xo


good luck!
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Old 12 June 2019, 14:01   #4
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Thanks for the tip. But I removed the solder bridge and I'm still getting the same problem.

Last edited by oggie; 12 June 2019 at 14:19.
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Old 17 June 2019, 21:28   #5
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would connecting it and trying to read a disc before removing the solder bridge cause any damage?
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Old 17 June 2019, 23:31   #6
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I have the same issue on one of my CD32 consoles, and it was a false contact somewhere.

Fiddling with the wires/connectors worked for some times. But it can break again...

Changing the laser repaired the laser thing, but there was the motor thing...
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Old 17 June 2019, 23:54   #7
oggie
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Quote:
Originally Posted by jotd View Post
I have the same issue on one of my CD32 consoles, and it was a false contact somewhere.



Fiddling with the wires/connectors worked for some times. But it can break again...



Changing the laser repaired the laser thing, but there was the motor thing...
The wires on the main board, or in the CDROM drive?
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Old 19 June 2019, 16:36   #8
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I tested the motor by applying 5 volts to it directly, and it spins fine.
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Old 19 June 2019, 18:23   #9
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Is there power getting to the motor from the motherboard?
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Old 19 June 2019, 18:58   #10
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No, it's not.
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Old 19 June 2019, 19:09   #11
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Is there power at the motherboard connector? To rule out a bad drive connector or cable.
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Old 19 June 2019, 19:25   #12
oggie
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Yes there's power going to the drive unit because the laser actually moves when I turn it on. But the motor won't spin
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Old 20 June 2019, 19:10   #13
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There is a pressure sensor on the cdrom spindle whereby if the spindle on the lid doesn't put enough pressure on the disk, the disk won't spin. Try pressing down on the lid with a disk in the drive to see if that will cause it to spin up.
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Old 20 June 2019, 19:27   #14
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Thanks. I already tried that as well. No luck
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Old 20 June 2019, 20:41   #15
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Hmm... We know power is getting there as the motor for the laser works. We know the disk motor works, you mentioned you tried that. I would guess that the CD32 thinks the disk is spinning since the laser is on and moves. What I would suggest is following the power connection from the SIL 10 connector, pin 6, through to where it connects to the motor, to check for anything broken or shorted out. Also, the CD32 can adjust the speed of the motor, so something might be going on with that. But I would follow the power to see where it's being stopped from getting to the motor.
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