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Troubles with SCSI CD Rom

 
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Shuren



Joined: 31 Oct 2006
Posts: 48
Location: Italy

PostPosted: Wed Nov 18, 2015 4:38 am    Post subject: Troubles with SCSI CD Rom Reply with quote

Hello, after some years, I restart my MonoStation, but i can't read any cdrom from the caddy (new or original). Here's the logs.

At the boot time:
Quote:
mach: SONY CD-ROM CDU-541 Rev 2.6a as sd1 at sc0 target 5 lun 0
mach: sd1: UNIT ATTENTION


Trying to access cdrom:
Quote:
mach: sd1 (5,0): scsi_timer: timeout op:0x0 sd_state:7 scsi status:0x0
mach: Target 5: BUSY; retry 1
mach: Target 5: BUSY; retry 2
mach: Target 5: BUSY; retry ...


Any ideas?

Thank you,
Michele
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pentium



Joined: 23 Jun 2006
Posts: 1148
Location: Kamloops, BC

PostPosted: Wed Nov 18, 2015 9:27 am    Post subject: Reply with quote

Sony's early CD drives are starting to have issues with the surface mount capacitors within. I've found that replacing them brings the drives back.
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barcher174



Joined: 07 Dec 2012
Posts: 560

PostPosted: Wed Nov 18, 2015 10:47 am    Post subject: Reply with quote

pentium wrote:
Sony's early CD drives are starting to have issues with the surface mount capacitors within. I've found that replacing them brings the drives back.


I can almost 100% guarantee that is the issue here. I've fixed 4 drives with this exact same symptom. Guide here: http://www.asterontech.com/Asterontech/next_cdrom_refurb.html
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Shuren



Joined: 31 Oct 2006
Posts: 48
Location: Italy

PostPosted: Thu Nov 19, 2015 7:44 am    Post subject: Reply with quote

Thank You very much guys, I will try!
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Rob Blessin Black Hole
Site Admin


Joined: 05 Sep 2006
Posts: 597
Location: Ft. Collins, Colorado

PostPosted: Mon Aug 14, 2017 9:22 am    Post subject: Reply with quote

Hello NeXT Community: I sent a working on video NeXT Sony 1X CD Rom out to a customer in Germany but apparently it is not powering on.... Does anyone know if they autoswitch to 220V ? Best Regards Rob Blessin
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bobo68



Joined: 03 Jun 2015
Posts: 194
Location: Germany

PostPosted: Mon Aug 14, 2017 2:20 pm    Post subject: Reply with quote

Rob Blessin Black Hole wrote:
Hello NeXT Community: I sent a working on video NeXT Sony 1X CD Rom out to a customer in Germany but apparently it is not powering on.... Does anyone know if they autoswitch to 220V ? Best Regards Rob Blessin


Yes: http://www.kevra.org/TheBestOfNext/NeXTProducts/NeXTHardware/ExternalCD-ROM-Drive/files/page624_2.pdf - "AC line voltage: 100 to 240V"
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barcher174



Joined: 07 Dec 2012
Posts: 560

PostPosted: Mon Aug 14, 2017 3:22 pm    Post subject: Reply with quote

There is a fuse inside can go bad. Replacement details at the end of this PDF: http://tim.id.au/laptops/apple/misc/applecd_150.300.pdf
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Rob Blessin Black Hole
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Joined: 05 Sep 2006
Posts: 597
Location: Ft. Collins, Colorado

PostPosted: Mon Aug 14, 2017 10:48 pm    Post subject: Reply with quote

Thanks I'll have him check the fuse! I'll bet that has happened to me before as well doh. Best regards Rob Blessin
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