Hi, the CD drive in my CD-32 seems to have packed up. I've tried cleaning the lens, cleaning contacts on the connectors, re-adjusting the pots on the drive controller, but no joy.
It occasionally tries to run the head off the end of the gear and makes a constant grinding which then I quickly power off. I've looked at the gears and they still look ok.
A replacement drive assembly seems a bit rare and steeply priced, which leads me onto my questions.
Has anyone reverse engineered the ribbon connection to the drive controller board?
I had a quick look at the chips and they seem to be;
big ICs
CXD2500BQ - CD digital signal processor (head)
CXA1372Q - RF signal processing servo amplifier (motors)
MN187164MCC1 - Controller?
small ICs
CXA1421M - ?
LA6520 - Power Amplifier (probably motors)
LA6530 - Power Amplifier (probably motors)
does this mean the actual handling is on the motherboard and this board acts for pure seek and read?
could this be emulated by any of the recent cheap devboards through GPIO?
alternatively is there a different manufacturer cheap replacement of this device?
It occasionally tries to run the head off the end of the gear and makes a constant grinding which then I quickly power off. I've looked at the gears and they still look ok.
A replacement drive assembly seems a bit rare and steeply priced, which leads me onto my questions.
Has anyone reverse engineered the ribbon connection to the drive controller board?
I had a quick look at the chips and they seem to be;
big ICs
CXD2500BQ - CD digital signal processor (head)
CXA1372Q - RF signal processing servo amplifier (motors)
MN187164MCC1 - Controller?
small ICs
CXA1421M - ?
LA6520 - Power Amplifier (probably motors)
LA6530 - Power Amplifier (probably motors)
does this mean the actual handling is on the motherboard and this board acts for pure seek and read?
could this be emulated by any of the recent cheap devboards through GPIO?
alternatively is there a different manufacturer cheap replacement of this device?
