Question about DVD & Blu-Ray Players

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Have a Toshiba sdp-2900 that returns the error no valid disc when a dvd is inserted. Any ideas? Thanks, Tom

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  • tkuhar Mar 26, 2008

    Have tried multiple dvds, tried cleaning drive, and double checked seating on the hub, still no luck.

  • tkuhar Mar 28, 2008

    I have tried cleaning the drive, several known working dvds, seating the dvd correctly on the hub. I still get the NO VALID DISC error.

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  • Master
  • 3,422 Answers

HI,

The first thing i would suggest you to do is a hard reset by unpluging the the player for 30min and then try again.

If this does not solve your problem then please see if the player tries to read the disc.
Load a disc and listen.Does the player make squealing noises or is it totally quiet? Squealing noises may indicate that the player is trying to synchronize with the disc but can't due to an obstruction on the lens or in the laser path inside the pickup or a defect in the pickup. This can also be caused by an intermittent signal problem due to a faulty ribbon cable.

Totally silent means that the photo sensor is not getting any usable input from the laser at all, meaning that the pickup is "blind" for lack of a better word.
This can be caused by an obstruction of the beam by foreign matter on the lens or inside the pickup all the way to a marginal or failed laser diode and/or photosensor array. This can also be caused by a bad ribbon cable with one or more severed traces.

You could try to clean the optics. This is the most common malfunction as far as i know in all disc players. It would involve taking the cover off and finding a way to expose the lense, and then cleaning it with a very gentle brush. some players have a cover for the lense that swings to the side during playing, this greatly reduces the chance of dust accumulating, but its still worth the try.

If you actually see dust on the lense, then its just that simple. clean, close, play.

It may also be worth your while to check on the small shafting that guides the carriage of the laser pickup. Dirt, grome, dust and solidified lubricant can cause stoppage of the carriage and the laser eye then fails to read the next track. Please refer to the image below.


have a Toshiba sdp-2900 that - 68cc573.jpg

If the problem still persists then you will have to get it repaired and thats the only solution to fix the problem.

Goodluck,
Please don't forget to rate the solution

Posted on Mar 28, 2008

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  • Master
  • 818 Answers

Change your drive, can be the laser break.
Sergio

Posted on Mar 28, 2008

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  • Master
  • 3,037 Answers

You could try cleaning the drive with a DVD cleaner

Have you tried multiple dvds?

Posted on Mar 26, 2008

  • 1 more comment 
  • Benjamin Patri
    Benjamin Patri Mar 26, 2008

    It might have been caused by a disc that is not seated correctly in the player
    because possibly 1 of the 3 clips on the center hub has not "clicked" fully.

  • Benjamin Patri
    Benjamin Patri Mar 26, 2008

    let me know how these solutions work out and please feel free to post any other question that you may have

  • Benjamin Patri
    Benjamin Patri Mar 28, 2008

    Toshiba has had this same problem in many of there DVD players, you can try and have it fixed but the problem usually keeps occurring. Your best bet is just buy a new DVD player.

    Good luck with this. Before buying one, find out the reviews that it has had.

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