Question about Koss KS4110 DVD Player

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Dvd player won't play-shows "bad disc" on screen

I have a Koss DVD player Model: KS4110. I have only used it one time. Ut worked perfectly. I hooked up a differnt TV and had this cheap disc I tried playing. It said "bad disc" so I assumed the disc was bad. I threw it out and three monthes later I rented a DVD from the video store that I know works and the screen on my DVD still says "bad disc" Can you tell me what I can do to correct this?

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  • jsv032 Nov 16, 2007

    i had the same problem the dvd format is one that the player does not recognize, the disk may be made with old technology not supported by the player.



1 Answer

It did the same thing to me, it started to work again. it may be a memory issue. my koss player started to work again after it was unplugged for a while. Its something to do with the dvd disc not the player. if i find out , i will post again. good luck

Posted on Jan 15, 2007


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how long have you been using this player? I suspect the laser (lens) of the player. I think the laser (lens) is weak that's why it cannot read data/files on DVD discs.

To confirm if actually its a laser problem, insert an Audio CD into the player and see if will play. If it plays, then obviously, your laser (lens) is weak. But if it doesn't play Audio CD, then it might still be the laser (lens) or a mechanism problem.

Get a lens cleaner, use it to clean the lens. If that doesn't solve the problem, get a screw driver, open the player's cover so that you can gain access to the lens, use a cotton board to clean the surface of the lens. This should clean dust or dirt that might be on the lens.

If non of the above solves the problem, then know that you need to replace the laser to a brand new one.

To replace the lens, remove the bad laser, use it as a sample to get exactly the same type and do the replacement. Note that replacing a laser (lens) needs a professional touch, so if you cannot replace the laser, get it to a repairman to fix it for you.

Once this us done, your player will play all DVD discs again.

Yours sincerely.


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