Question about JVC XV-N412S DVD Player

6 Answers

Hello, I have the JVC XV-N412 DVD player. It has been working fine for a couple of years now, but lately it will no "read" regular commercial DVDs. I place a DVD in the tray, it struggles to lock in, but I only get a "No Disc" notice onscreen. This happens with numerous DVDs, including ones I tried knowing that I had played them previously with no problem. The only DVDs that seem to play OK are those that I burn myself-- photo collections, QT movies recorded from my DVD or output through iMovie, etc. But regular DVDs no longer seem to play. Any thoughts...? Thanks, Ernest Farino

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  • ernieworld Dec 27, 2008

    Additional info: I had heard that shutting down the a player like this can help (recycle the memory or whatever), so I unplugged the player for approximately 24 hours. I then plugged it back in and tried various discs again, but with the same problem as described above.

    Just thought I would add that in to skip over that step as a possible solution.

    Thanks,

    Ernest Farino


  • ernieworld Dec 27, 2008

    Thank for the quick response. I don't have any experience in cleaning internal components-- can you tell me the best way to access the lens to clean it...? Thanks.

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6 Answers

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Hi and welcome to FixYa,

Initially, try a CD disc cleaner that is readily available from most audio/video stores and even computer stores. They are designed to look and play like regular discs but with a brush like attachment designed to clean the lens.
Hello,

I have the JVC XV-N412 - b98396c.jpg

It may also be worth your while to check on the small shafting that guides the carriage of the laser pickup. Dirt, grime, 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.
236b7b0.jpg
Good luck and Thank you for using FixYa.

Posted on Dec 27, 2008

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Hi Ernest,
It sounds to me as though the lens needs cleaning or replacing. So if a lens clean doesn't work you could look around for a replacement lens unit. Heres one i found:
http://www.4jvc.co.uk/cgi-bin/search.pl?parts_search=s&model=XV-N412&part=

but that might just mean the front glass of the unit. Failing that it's time for a new player.

All the best
Sean
PiDigital

Posted on Dec 27, 2008

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Hi did you try cleaning the lens of your DVD player , In most cases due to moisture the DVD head fails to recognize the DVD in turn an error displays No Read disk or no disc found. Please let me know how old the DVD player is . Sometimes if its too old the DVD head might have worn out which needs an replacement.

Posted on Dec 27, 2008

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Hi,

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 i have attached.

Posted on Dec 27, 2008

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First, unplug dvd player from AC outlet for couple of minutes, replug and try to play dvd.
2nd is to clean dvd lens with either cd cleaner or cotton bud by taking off top cover of unit.

Posted on Dec 27, 2008

  • Shahid Electronics
    Shahid Electronics Dec 27, 2008

    Unplug unit from AC outlet.
    Cleaning the optical lens is to take off cover of unit and see lase optical lens.
    Get good quality soft cotton bud and clean the glass lens on laser optical with round / circular motion. do not press cotton bud so ******* lens.
    Put back cover on unit and replug unit in AC.
    Power it up and load disc, press play and check.


  • Shahid Electronics
    Shahid Electronics Dec 27, 2008

    sample picture of optical lens is here...




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Simple.its the problem of lens got dirty internally it needs cleaning.or the lens got faulty in that case it needs replace ment.try cleaning the lens with your haND manually and check out.

Posted on Dec 27, 2008

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