Wtb: o2 OPTICAL disk drives - Printable Version
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Wtb: o2 OPTICAL disk drives - mamed - 01-06-2022
I need two of these 20 each plus shipping or if anyone could tell me what kind of laser or diode it takes I could install them myself. Great at microsolder and have a microscope.
RE: Wtb: o2 disk drives - weblacky - 01-06-2022
? The title doesn't match your text. What diode does an O2 drive sled need?
RE: Wtb: o2 disk drives - robespierre - 01-06-2022
I guess the implication is that the poster is seeking optical drives. As far as replacing laser diodes, I'm not aware of those being the failure point.
RE: Wtb: o2 disk drives - mamed - 01-06-2022
(01-06-2022, 06:42 AM)robespierre Wrote: I guess the implication is that the poster is seeking optical drives. As far as replacing laser diodes, I'm not aware of those being the failure point.so if the drive opens and closes and the sled goes up and down what else other than the laser would it be. Its generally the laser imo same with xboxes ps2s etc. dvd rom and cd rom lasers just die bro
RE: Wtb: o2 OPTICAL disk drives - weblacky - 01-06-2022
Okay so you’re asking for two scsi Toshiba O2 optical drives at $20 per drive and you hope someone knows the laser diode carriage part number from 25 years ago for a part that was never made available to the public?
The diode is housed in a floating mechanism (springs) that is controlled by coils to aim tracking and yaw/depth (that assembly isn’t solderable). Then placed inside a carriage system for moving across the disc surface. The carriage body is normally the modular laser assembly.
Just like in video game consoles people normally scavenge them off of duplicate drives. Although these days they’re coded to one another, back in the old days they were in fact modular and often times had to regulator adjustment on carriage.
RE: Wtb: o2 disk drives - robespierre - 01-06-2022
(01-06-2022, 03:34 PM)mamed Wrote: so if the drive opens and closes and the sled goes up and down what else other than the laser would it be. Its generally the laser imo same with xboxes ps2s etc. dvd rom and cd rom lasers just die broMaking assumptions and replacing components without any test at all isn't a great repair methodology.
"What else" would have to start with the most likely components to fail, which are electrolytic capacitors and power regulators. I would also establish whether the bus interface unit is working before checking the laser, simply because it is easier to test. I don't own an optical power meter which is required to adjust laser power, but as components drift from age that is usually required.
Drift and power adjustment problems are the reason some old optical drives refuse to read CDRs and especially CDRWs (when they were originally made to be "multiread capable", i.e. CDRW compatible).
RE: Wtb: o2 disk drives - mamed - 01-09-2022
(01-06-2022, 08:35 PM)robespierre Wrote:Well in the first one you’d be correct , model: Toshiba xm5401b(01-06-2022, 03:34 PM)mamed Wrote: so if the drive opens and closes and the sled goes up and down what else other than the laser would it be. Its generally the laser imo same with xboxes ps2s etc. dvd rom and cd rom lasers just die broMaking assumptions and replacing components without any test at all isn't a great repair methodology.
"What else" would have to start with the most likely components to fail, which are electrolytic capacitors and power regulators. I would also establish whether the bus interface unit is working before checking the laser, simply because it is easier to test. I don't own an optical power meter which is required to adjust laser power, but as components drift from age that is usually required.
Drift and power adjustment problems are the reason some old optical drives refuse to read CDRs and especially CDRWs (when they were originally made to be "multiread capable", i.e. CDRW compatible).
the drive train is rickety and for some reason (the cogs that drive the sled up and down are still there) the sled won’t drive up. It only goes maybe 1/4 the way and fails. Now if I take the metal all off and force the sled drive train forward so the sled comes up the disk will load happy as a clam and actually faster than my working one.
inside the mechanism that catches the drive train only seems to half engage. The motor spins and when the drive realizes it just spits it back out.
funny when the disk is inside and loaded if I eject it the drive works perfectly but only to eject you can’t put the disk back in.
so either it’s to loose or maybe that cog slider has something to do with it or it’s not in the right position.
but holy moly this drive is poorly made. If I had a 3D printer I could probably design something to fix whatever that is immediately but for now I guess I’ll toy with it and see if I can get the sled to function properly sucker just refuses to go up!