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NeXT N3010 CD-ROM Drive Problems?

 
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pergamon



Joined: 30 Dec 2005
Posts: 222
Location: Indiana

PostPosted: Tue Feb 28, 2017 5:29 am    Post subject: NeXT N3010 CD-ROM Drive Problems? Reply with quote

Has anyone else had issues with the NeXT external CD-ROM drives spontaneously failing?

I have many of them, including a couple that I know worked a few years ago and have just been sitting in my house since then. However, now none of them actually seem to be able to mount a disk. They'll take in the cartridge, it'll spin for a bit, but it never mounts. The same CD (a NeXTSTEP 3.3 Patch2 disk) mounts just fine using the same cartridge in a 3rd-party drive on the same NeXTstation so it has to be the drives and not the computer or disc.

Maybe there's some consistent age-related failure issue like with the ODs?
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bobo68



Joined: 03 Jun 2015
Posts: 213
Location: Germany

PostPosted: Tue Feb 28, 2017 8:29 am    Post subject: Reply with quote

It could be failing capacitors. see http://www.asterontech.com/Asterontech/next_cdrom_refurb.html
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barcher174



Joined: 07 Dec 2012
Posts: 610

PostPosted: Tue Feb 28, 2017 1:28 pm    Post subject: Reply with quote

Yup. Its definitely capacitors.
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pergamon



Joined: 30 Dec 2005
Posts: 222
Location: Indiana

PostPosted: Wed Mar 01, 2017 8:44 am    Post subject: Reply with quote

Thanks for the info! I did a little searching around and didn't find this.

It's been a while since I've soldered, but since I have 10 of these I ought to be able to get at least one of them right.
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nekonoko



Joined: 31 Oct 2007
Posts: 32
Location: Pleasanton, CA

PostPosted: Sun Jan 28, 2018 6:37 pm    Post subject: Reply with quote

I just refurbished mine this weekend; it needed new ceramics in the drive itself plus the electrolytics in the power supply had vented sticky green goo everywhere. It was a mess. Shocked
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pentium



Joined: 23 Jun 2006
Posts: 1159
Location: Kamloops, BC

PostPosted: Mon Jan 29, 2018 9:41 pm    Post subject: Reply with quote

Yes. Please note that it is especially an issue with drives internal and external manufactured by Sony that they have their capacitors reworked. Sony in particular loved surface mount at this point and they ALL are at the point of failure now.
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-NeXT 68040 Cube with NS 3.3 and 64Mb ram
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barcher174



Joined: 07 Dec 2012
Posts: 610

PostPosted: Tue Jan 30, 2018 12:15 pm    Post subject: Reply with quote

pentium wrote:
Yes. Please note that it is especially an issue with drives internal and external manufactured by Sony that they have their capacitors reworked. Sony in particular loved surface mount at this point and they ALL are at the point of failure now.


And as a result the price on this vintage of drive is getting out of control. I used to be able to pick up a parts drive for $25 or so.
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pentium



Joined: 23 Jun 2006
Posts: 1159
Location: Kamloops, BC

PostPosted: Tue Jan 30, 2018 8:43 pm    Post subject: Reply with quote

I would of expected a "non-functional" (it needs a recap) drive would be cheaper than a working or already recapped unit.
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Shuren



Joined: 31 Oct 2006
Posts: 50
Location: Italy

PostPosted: Sat Feb 24, 2018 10:33 am    Post subject: Reply with quote

https://drive.google.com/open?id=1olK3LyYpJ8l-KxlL5q-__xQPT4tSN9Ha

I'm sorry, but... "Can't read device capacity" meaning that Toshiba drive is unsupported?

Thank's,
Michele
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pentium



Joined: 23 Jun 2006
Posts: 1159
Location: Kamloops, BC

PostPosted: Wed Mar 07, 2018 10:54 pm    Post subject: Reply with quote

Toshiba's should be supported. What is your block size jumper set to on the drive?
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Shuren



Joined: 31 Oct 2006
Posts: 50
Location: Italy

PostPosted: Thu Mar 08, 2018 11:33 am    Post subject: Reply with quote

I'm a little bit frustrated... Opening the external enclosure, I had can recognize the drive and jumpers: it is the XM-3501B from Toshiba. But there is no mark of block jumpers.

http://stason.org/TULARC/pc/optical-cd-drives/TOSHIBA-CD-ROM-XM-3501B.html

Here ( https://groups.google.com/d/topic/comp.periphs.scsi/U-XASRsD-Us/discussion ) I found a trace of a sort of switch for another model that change block size from "PC" to "Sun" mode, but nothing here... :/

Any ideas, hint or cocktail will be appreciated!

Michele
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barcher174



Joined: 07 Dec 2012
Posts: 610

PostPosted: Thu Mar 08, 2018 12:58 pm    Post subject: Reply with quote

Yes setting the block size as I recall is not done with a jumper on these drives, but rather by cutting a trace. You want the 512K block size. This link seems to confirm my thinking:

http://rainbow.ldeo.columbia.edu/documentation/sgi-faq/hardware/40.html
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