Question about Pioneer DVR-520H DVD Recorder

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Problem Pioneer DVR-520H

Hi, It does not matter what kind of DVD or CD  I use, I  always get the message "No disc". Has someone else had this problem? Totte Hello, Yes, Mini Me, I have the same problem. Even though my Pioneer has recorded hundreds of discs, mostly sports and movies, I've had only 2 or 3 discs/recordings that were defective or unfixable. Then a couple of months ago it started...sometimes I'd put in a pre-recorded dvd such as the new colorized "It's a Wonderful Life", which my Pioneer wouldn't read and show. I tried other movies and personally recorded discs with similar frustrating results. Recording, too, is a problem. I'm trying to add one program to an already recorded disc and the "No Disc" message on the unit with the "Incompatible Disc or Can't read Disc" error messages popping up. Often an unrecorded disc is placed in and I have to try 3 or 4 times to have the machine read the disc. Sometimes I can then record to it but now must finalize the disc immediately on finishing recording or risk adding this disc to the growing pile of unfinalized discs that the machine won't read. My belief is that the laser is either wearing out or needing to be professionally cleaned for both of us. I understand and feel your frustrations. This was not an inexpensive unit. Any other opinions regarding my problems are welcomed and appreciated. Thanks, Bob

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Re: Problem Pioneer DVR-520H - Pioneer DVR-520H DVD Recorder DVD & Blu-Ray Players

Your lens needs to be replaced.

Posted on Jan 27, 2008

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Power supply unit failure

It could be the IC101 (MR2920) and the zener D104 both failed, or IC1 (MD5001T) failed as well, here is the link where I've descrived how I fix the issue on my DVR-520H, it is in italian but you can translate it with Google:

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Looking for a manual free of charge for DVR-520 H. Where to find?

Get into this site where you can get its user manual for free download. If you fail to do it, either send your email address by fixya of send a mail to me at I've the manual in pdf format, and will send it to you by return mail. OK. DVR-520H.Protected - United States

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Power off after recording

Hi All,

This is a power supply problem.... the MR2920 stanby IC miss behaved, it power off and fail to power back on.

Solution, get pioneer power supply replacement or take the dvd recorder to your local electronic service repair to take a look at the power supply circuit.

Best of luck

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well nero 8 contais a finalize utility you can use to finalize it.

antoer method is to retrieve the data via certin software and then bur it back off one such program is CD RECOVERY TOOL BOX (dont worry it does dvd's as well)

although its for damaged and unreadible disc it will retrieve the video from unfinalized disc as well.. I used it many taimes and it works perfectly

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If you are using RCA cables, you need to hook up three cables (1) yellow video, (2) white - left audio, (3) red - right audio.

May 28, 2007 | Pioneer DVR-520H DVD Recorder

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Hi, Had one that was playing just great, then the next thing ya know is that it won't recognize any dvd in it. Gave a "No Disc" message. So, I called Panasonic, (without thinking first) they say that it is under warranty and to ship it to a place in Pa, I am in NY. So, I ship it on Thursday, according to UPS they get it on Friday. I called on Monday, nope, they didn't get it, so I explain that UPS says that they have it. I next talk to shipping who put me on hold and go looking. He comes back and says yep, they have it, but it may be a week before they look at it. I give him my # again, and tell him to call me. Yep, he calls back later that morning, says that labor is only for 90 days. I told him that the rep said it was under warranty, yes he says, parts are 1 yr. $89.95 to fix it. I tell him to hold it. I remember buying it from and they have a 2 yr warranty with it. I called them, they approve it immediately approve it, and get this, the repair shop is a 10 minute drive. I then call back Panasonic on Tuesday a.m. They promise to ship it back. I call Wed, nope, they didn't get around to it. It is now Friday a.m., and no player. I am pissed at myself first, then the rep, then the shipping dept. WTF? So I say to you, if you do buy it, get it from 299 it is a steal. This way you get a 2 yr service warranty for no extra charge. Sam

Jan 02, 2006 | Pioneer DVR-520H DVD Recorder

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