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Subject: Re: CDRW does not read cds
Date: Mon, 30 Sep 2002 14:32:00 +0300
References: <3D926F44.A8786603@webaccess.net> <3D93A9C1.8F29D7EC@webaccess.net>
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
I have a similar problem with my RICOH MP9060 DVD/CDRW drive: Since about a
month ago it started having a problem recognising disks. The more prone to
recognition failure are empty CD-R/RW and data CDs and less are DVDs and
Audio CDs. Sometimes when I eject and re-insert the disk a few times it is
recognised; sometimes the disk cannot be recognised until I power down and
power up again. The problem has been deteriorating ever since.
I decided to open it up (it's out of warranty anyway) and do some lens
cleaning and rail lubrication. After that there is a slight improvement but
nothing spectacular. However, I have noticed some strange behaviour...
First of all, as I was watching the laser beam's red spot on the label side
of the inserted disk, I noticed that when it turns on it is wide and then it
narrows (I guess that's focusing). Now when there is no problem the visible
part of the beam disappears and everything is fine. But when there is a
problem, the red spot becomes wide again (lost focus?)
Also, I noticed that it tries to slide a bit towards the center of the disk
(disk hole) when it focuses, but then jumps back and widens.
Does anyone have any idea what this means?
Another thing is that sometimes after it decides that it cannot read the
disk, it turns off and stops spinning, while at other times it keeps
spinning and I can watch the red spot until I push eject.
And finally, I have noticed that usually when it cannot recognise one disk
and I insert a different disk the second may be recognised. But there are
rare times when after a failure, all successive tries with different disks
fail and the laser does not even bother to turn on. After a restart things
are back to "normal" again.
Any suggestions are more than welcome. Thank you very much.
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