Subject: Re: CDRW does not read cds
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
NNTP-Posting-Date: Tue, 24 Sep 2002 20:11:09 CDT
Organization: Prodigy Internet http://www.prodigy.com
Date: Wed, 25 Sep 2002 01:11:09 GMT
> I have a panasonic (matshita/matsushita) CDRW , model CW-7585, that
> was working fine on winXP Pro and Roxio Easy cd creator 5 platinum.
> Since yesterday it won't regognize cd's blanks or not. I opened it to
> see if I could fix it using the extremely helpful instructions at
> http://www.repairfaq.org/REPAIR/F_cdfaq.html. This is what I found:
> Whenever I close the tray, (with/without a cd in it), the pickup moves
> back and forth on the rack, positions at a specific location and then
> stops. Then nothing happens. (Normally, the cd should start spinning).
> Folowing the tips at
> http://www.repairfaq.org/REPAIR/F_cdfaq5.html#CDFAQ_006 (9.3 Procedure
> for validating the startup sequence ), I did clean and lubricate and I
> verified that the pickup could move: I carefully cleaned the lens
> using a Q-tip slightly dipped in alcohol, and then I lubricated the
> racks using just a bit of fine oil, and some gears using a bit of
> fine grease. I also turned some gears and made sure they could turn
> However, I am not sure how to verify that the pickup can attempt to
> focus:When there is no cd, the lens does not seem to move up/down ,
> but that could be because it does not sense a cd present. When I put a
> cd on, I cannot see anything since the cds are covered on the
> backside. I have a see-through plastic the shape of a cd(used as a
> plastic cover in a 50-cd cone) but I am not sure if it can fool the
> sensor (if it has one) , since the sensor probably senses reflected
> light, and the see-through plastic may not reflect the light.So is
> there a way to verify that the lens moves up/down?
> About the laser, I could not see any red spots in a dark room,
> whenever I closed the tray (with/without a cd in). Maybe the absence
> of a cd did not power on the laser, and its appearance covered the
> laser beam.
> I think it all boils down to fooling the CDRW into thinking that there
> is a cd present. Thus I can verify that the lens moves up/down, and
> that laser is emmitted (maybe using a camcorder: see through it a beam
> projected on a piece of paper over the lens).
> Note: I bought the CDRw about 2 years ago, and recorded less than
> 50cds on it. The last 3 months, every weekend I've been travelling to
> a city 2 hours away , carrying my pc with my in my car. Is it possible
> that a knock on the computer shook the CDRW?
> I appreciate your patience in reading this posting, and I am grateful
> for any replies.
Before you started in on the hardware can we assume you restored to when =
it was working?