Question about Pioneer DV-373 DVD Player

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Sound cutting out after 40 to 60 minutes of playing a DVD

Hi I am new to this forum so please excuse me if I don't know all the jargon or etiquette! We have this DVD player and have had it for 18 months and it has been perfect. It is connected to a brand new Panasonic Home Theatre System (bought about 6 months ago). About a week ago we noticed problems with the sound cutting out after a decent amount of time into a DVD. The sound just drops out for a few seconds and the speaker lights on the sound system box disappear completely. The DVD keeps playing and then a few seconds later the sound comes back on and the lights on the display appear again. The longest the sound cuts out for it about 5 seconds. This seems to happen only when watching something that uses 5.1 or DTS. Our VCR and turntable play with no problems through the sound system, so we have decided that it must be the DVD player. We have checked all connections, cleaned them and replugged them. We also replaced the coaxial cord and when that didn't fix the problem, we had the store we bought the coaxial from test it and it is fine. So it appears that it is the DVD player that is having problems. We have also checked all the original sound settings on the player and they are fine. This DVD player is great and we don't want to replace it if the problem is something that can easily be fixed. Also, once the sound has cut out once, it seems to happen more frequently. As you can imagine this is really annoying! Can anyone help me with this problem? We cannot think of anything else and have emailed Pioneer support about it but it may take weeks for a reply. We also tried the vacant jack solution but that did not work either. I hope someone can offer some sort of solution. Is it possible that the DVD player has dirt or something in it and can this be easily fixed? It just seems to be such a minor problem and we don't want to have to replace it... Help! Thanks so much Chris P.S I am a bit of a technophobe so please feel free to dumb down your answers for me!!!

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  • Chris Gregory Jun 24, 2006

    Hi Techman
    Thanks so much for your advice. How do you clean the lens? I am sorry but have no idea what this means. Is there a disc you buy to clean it?
    Sorry for the ignorance but I have never heard of cleaning the lens!



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Have you tryed the cleaning of the lens first?? I would for sure do that. If that dosent work i would connect the unit to another amp and see if it still cuts out too. If it does it could have a problem with the tracking or focus gain/offwet alighnment. These are not consumer alighnments, as you need a scope and the know how to hook up the player to the scope and monitor the rf waveform along with test disc. Other then cleaning the unit theres not alot we as consumers can do. Good luck

Posted on Jun 24, 2006

  • Larry  Dillon
    Larry Dillon Jun 24, 2006

    Yes, there is a disc you can buy to clean the laser lens. Some units wont let you use a cleaning disc, so you will need to carefully take off the screws around the back of the cover and on the sides if there are any. Carefully,with the unit unplugged,slide the top cover towards the rear of the unit while lifting up from the back. Now with the cover off you will see where the disc platter is, a small round lens that kinda looks like a contact lens. Now with a cue, tip with a dab of alcohol on the lens lightly, (VERY LIGHTLY!!!!) in a circular motion, rub the lens assy. Let it dry and do it again with a dry part of the cue tip. If that dosent do the trick, then you will need a spindle motor or even a simple servo alighnment , and this is not for a handi-man to do. Theres special equipment and disc needed to do this. Hope this helps!! Good Luck



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