I got another year's performance from mine after tweeking the wires that suspend the laser's lens so that it would be raised slightly. However, it started to refuse to initiate/start reading a dvd unless re-inserted, displaying 'No disc'. More tweeking of the wires made it worse and then caused it to lose all ability to read. Adjusting the angle of the spindle motor (tipping it away from the laser) brought back the ability to intialize (getting rid of 'No disc' problem) but now it never manages to display disc content and the laser spends a lot of time 'searching'.
I got another year's performance from mine after tweeking the wires that suspend the laser's lens so that it would be raised slightly. However, it started to refuse to initiate/start reading a dvd unless re-inserted, displaying 'No disc'. More tweeking of the wires made it worse and then caused it to lose all ability to read. Adjusting the angle of the spindle motor (tipping it away from the laser) brought back the ability to intialize (getting rid of 'No disc' problem) but now it never manages to display disc content and the laser spends a lot of time 'searching'.I got another year's performance from mine after tweeking the wires that suspend the laser's lens so that it would be raised slightly. However, it started to refuse to initiate/start reading a dvd unless re-inserted, displaying 'No disc'. More tweeking of the wires made it worse and then caused it to lose all ability to read. Adjusting the angle of the spindle motor (tipping it away from the laser) brought back the ability to intialize (getting rid of 'No disc' problem) but now it never manages to display disc content and the laser spends a lot of time 'searching'.
My conclusion: 1. If the cd or dvd player won't start a disc (might display 'no disc') open the box and get good access to the laser lens (quite easy in many models). Clean the lens with an ear-bud (q-tip) and add some alcohol (I used after shave) on to aid the clean if there are still reading problems. Persevere with cleaning before trying option 2. 2. If it's selectively rejecting certain dvd's (and the problem might have become worse with time) consider ever-so-slightly bending the fine wires that suspend the lens over the laser, in an upward direction. Be very careful and read all the info on my wiki.answers postMy conclusion: 1. If the cd or dvd player won't start a disc (might display 'no disc') open the box and get good access to the laser lens (quite easy in many models). Clean the lens with an ear-bud (q-tip) and add some alcohol (I used after shave) on to aid the clean if there are still reading problems. Persevere with cleaning before trying option 2. 2. If it's selectively rejecting certain dvd's (and the problem might have become worse with time) consider ever-so-slightly bending the fine wires that suspend the lens over the laser, in an upward direction. Be very careful and read all the info on my wiki.answers post
Both indications are suggestive of poor optics performance. The "unknown disc" message indicates that the unit recognized a disc being present, but could not read the TOC(tabel of contents) correctly. The "no disc" message indicates that the optics did not even recognize that a disk was present.
The first thing to try in either case is to clean the optics lens. If you can open up the unit, clean the lens surface using a cotton swab and alcohol. Try a disc and report what happens. If you get the same error, try playing a music CD rather than a DVD. If the CD will play but the DVD will not, the optics are failing and need top be replaced. CDs require less laser power to read than DVDs.
Hi, How long have you owned the unit and how long have you had this problem? Does it do this with every disc? Once I have more information I will assist you further. Thank you, Lee
Answers & Comments
I got another year's performance from mine after tweeking the wires that suspend the laser's lens so that it would be raised slightly. However, it started to refuse to initiate/start reading a dvd unless re-inserted, displaying 'No disc'. More tweeking of the wires made it worse and then caused it to lose all ability to read. Adjusting the angle of the spindle motor (tipping it away from the laser) brought back the ability to intialize (getting rid of 'No disc' problem) but now it never manages to display disc content and the laser spends a lot of time 'searching'.
I got another year's performance from mine after tweeking the wires that suspend the laser's lens so that it would be raised slightly. However, it started to refuse to initiate/start reading a dvd unless re-inserted, displaying 'No disc'. More tweeking of the wires made it worse and then caused it to lose all ability to read. Adjusting the angle of the spindle motor (tipping it away from the laser) brought back the ability to intialize (getting rid of 'No disc' problem) but now it never manages to display disc content and the laser spends a lot of time 'searching'.
My conclusion: 1. If the cd or dvd player won't start a disc (might display 'no disc') open the box and get good access to the laser lens (quite easy in many models). Clean the lens with an ear-bud (q-tip) and add some alcohol (I used after shave) on to aid the clean if there are still reading problems. Persevere with cleaning before trying option 2. 2. If it's selectively rejecting certain dvd's (and the problem might have become worse with time) consider ever-so-slightly bending the fine wires that suspend the lens over the laser, in an upward direction. Be very careful and read all the info on my wiki.answers post
Both indications are suggestive of poor optics performance. The "unknown disc" message indicates that the unit recognized a disc being present, but could not read the TOC(tabel of contents) correctly. The "no disc" message indicates that the optics did not even recognize that a disk was present.
The first thing to try in either case is to clean the optics lens. If you can open up the unit, clean the lens surface using a cotton swab and alcohol. Try a disc and report what happens. If you get the same error, try playing a music CD rather than a DVD. If the CD will play but the DVD will not, the optics are failing and need top be replaced. CDs require less laser power to read than DVDs.
Please keep us posted.
Thanks,
Dan
Hi,
How long have you owned the unit and how long have you had this problem? Does it do this with every disc? Once I have more information I will assist you further.
Thank you,
Lee
One particular disc? or all discs?
Unplug for 5 minutes and re-try.
Thanks