Amiga CD32 CD Rom Drive Question

[Ceph]

The laser diodes of both my CD32s are getting week; cleaning the lens or adjusting the potentiometers doesn't help. I found out that the CD32's CD-Rom mechanism is a Sony KSM-2101BAM.

CD-ROM Subsystem

A separate PCB (2 layer) contains the CD electronics. This board contains the RF amp and servo chip, the audio DSP chip, and a small microcontroller for controlling the servo, focus, and communicating with the main CPU. The main CPU and RAM perform any prefetching/ buffering and ECC as necessary.

The mechanism for the AmigaCD32 is a Sony KSM-2101BAM. The KSM-2101BAM has no drawer, or drawer motor. It is simply a spindle motor, traverse motor, and optical pickup. Chinon will provide the drive PCB. The electronics are based on the Sony CD chipset, which support double-speed operation. The microcontroller firmware has changed slightly in this version of the drive to (1) remove the firmware to control the drawer, and (2) revise the communications protocol to use a new 3-wire channel instead of the older 6-wire channel (to save pins on the ASIC) and (3) support multi-session discs (which is useful for PhotoCD support).

The software driver for the CD subsystem has been converted to run entirely on the 68EC020. The software also supports Akiko and its new DMA. This driver incorporates all the prefetching tricks and double-speed support completely from the 68EC020. It also supports both Mode 1 and Mode 2 (Form 1 and 2) discs. This is required to read all types of CD media called out in the Philips Yellow Book. This includes CD-I discs, PhotoCD® discs, and MPEG discs.

My question is, if I buy a Sony KSM-2101BAM CD Rom mount (they are still available), will it fit?

[Akira]

Sorry to necrobumnp this, it's been a looong while since you posted, but I thought this could help others.
You are correct, the assembly will fit, just make sure you buy the exact same type as the one in your CD32.

I made a step-by-step guide on how to go at this here:
http://eab.abime.net/showthread.php?t=84408