Hot Chip in Slimline Burner

[Schneeleopard]

Hi all,
I got a slimline CDRW drive from Ricoh that doesn't show a sign of live.
Someone must have removed a blown fuse and soldered a bridge across the
contact points. I managed to power the drive outside the notebook PC and I
noticed the Toshiba TC9450AF CD-drive controller getting hot. The whole
drive is drawing approx. 1 A at 5 V.

Maybe the chip is dead. Should I try to replace? Maybe something else is
the cause. The PCB is full of test points and usefull hints so it should
be servicable - if I only had a service manual.

Any ideas?

This is what it looks like:

http://server24.hypermart.net/chupadero/Bilder/RICOH.JPG

http://server24.hypermart.net/chupadero/Bilder/Ricoh-upside.JPG

http://server24.hypermart.net/chupadero/Bilder/Ricoh-downside.jpg


best regards,
Volkmar

 

[William R. Walsh]

Hi!

Something is probably loading that controller chip down--most likely a
shorted, stuck or otherwise defective motor. Since the chip is still getting
hot, it may still be alive and working if you can find the damaged motor in
time...before the magic smoke comes out.

When you find the motor, you might be able to salvage it as per the
instructions that live somewhere on
http://www.repairfaq.org/ -- I think you'll need to look for the CD player
portion of the FAQ and, more specifically, perhaps the part about bad
Pioneer disc changer spindle motors...the same problem can happen with other
motors used in similar applications.

William