Question about Panasonic DMR-E55 DVD Recorder

1 Answer

DVD recorder continually stuck on a loop trying to read disk.

Hi, we have a Panasonic DVD recorder model number DMR-E55. Lately every time we want to watch something we have recorded or even turn the machine on it take ages to read the disk and seems to be stuck on a loop. The machine is continually trying to read the disk. We fiddle about with the wires and after 10 minutes the machine then recognises the disk and we can start to watch our recordings. Please help, we are not sure what has gone wrong, whether we can fix it or do we need to buy a new one? This happens whichever dvd we try to play not just rewritable ones.
Mrs Atsa.

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  • 3 more comments 
  • ozlematsa Feb 01, 2009

    Hi, I wanted to send a message to Palmbeach but can't seem to find out how to send a message directly. Anyway hope you get this.

    Just wanted to say a massive thank you for your solution to my problem with the DVD recorder Panasonic EMR-E55. Luckily my husband is a dab hand at fixing things and had all the tools needed for the job. We ordered the regulator online and we tried to repair the maching today...and it works!!!! We were a little dubious as to whether it would work but we followed all your instructions and switched it on and like magic the recorder is working perfectly and hope it will continue to do so.

    Thank you so much for taking the time to reply to our problem, you are an expert! and you have saved us a whole load of money getting it repaired or buying a new recorder.

    Thanks a million. Mr and Mrs Atsa. London.

  • evita-4 Apr 12, 2009

    Having experienced the same "Self Checking" loop with my my own DMR E55 I have ordered a replacement voltage regulator. In the meantime realising my in laws had an identical unit still in working order I hastily carried out a mod to upgrade the existing heatsink by the addition of a 2mm thick 50mm X 35mm aluminimum plate cut to provide a finned heatsink. I ran the unit for 30 minutes with a disc in the drive but just on idle (motor spinning). The modded heatsink felt fairly warm to touch after this period. I did not bother with any tmperature measurements but it certainly was sufficient to prove how hopelessly inadequate Panasonics own design of heatsinking is.

    Failing to rectify this problem which must have shown up in initial manufacturers testing goes a long way to prove that this is a built in fault waiting to happen. I will certainly be pursuing the cost of the replacement component with Panasonic when rectifying the fault with my own DMR E55.

  • Palmbeach
    Palmbeach May 11, 2010


    This is a common failure with this machine. Thankfully it can be repaired and it is relatively easy for anyone with a little technical ability.

    Have you seen my posting from Jan 2008? If not I have pasted it here. You may be able to repair it yousellf, if not take these instructions to someone who can use a soldering iron and you'll recover you recorder. These are great recorders and it's well worth giving them a second chance.>>>>

    Jan 2008 - Ok guys, you asked for a fix for the DMR E55 Self Checking cycle. Here goes.
    In 99% of cases this is caused by a faulty regulator on the main power board. The power board is located on the right hand side of the unit. The regulator is IC001 which is mounted on a thin metal strip which acts as a totally inadequate heatsink. This means that this component constantly works at temperatures beyond its tolerance. Because of this it usually lasts a couple of years and then starts causing problems. The Self Checking syndrome is typical. If the regulator burns out completely, it can take other components with it, blow fuses and scorch the circuit board.

    If you are competent in using a soldering iron with care, order an STRG 6353 regulator. These can be obtained online from a number of suppliers.

    Disconnect your DMR E55 from the power source and remove the lid.
    Next, remove the fixing screws from the circuit board on the right where the regulator is located. Carefully remove the multi connector on the left side of the board. Remove the screw above the power connector on the rear of the unit. The power board can now be removed from the cabinet. Using a small pair of wire cutters, clip all five pins from the old regulator as close the the top of the board as possible. Undo the screw securing it to the heatsink and remove the old regulator which can now be thrown away.

    Next, using your soldering iron, remove what's left of the pins from the printed board and with a solder ****** or desoldering braid, clear the holes ready to accept your new regulator. Be careful because if you over heat the print it can lift away from the board.
    Use a little heatsink compound on the back of your new regulator, poke the pins through the circuit board and then secure it to the heatsink. I usually fit an extra heatsink on these units which helps to reduce heat and prolong the life of the new component.
    Next, resolder the 5 pins on the print side of the board. Use a magnifying glass and make sure you haven't missed anything or bridged connections in error and caused short circuits.
    Now put the board back. This can be a little tricky but it's easy enough if you take care. Replace all the screws and carefully reconnect the multi connector.

    If you have followed this correctly, switch the unit back on, pop in a DVD and give it a try. Unless you are very unlucky, your DMR E55 will no longer repeatedly self check and will operate correctly.

    Whilst it saddens me to hear that some would toss your DMR E55s into the trash can for such an easily repairable problem, please do not attempt this unless you are confident in your own ability.
    Finally, do check that the fan operates but remember it is temperature controlled and will not activate until it is needed. Do not assume it is faulty because you do not see it working straight away. I have repaired lots of DMR E55s and I have never found a single fan or fan control circuit to be faulty. That's not to say it can't fail. good luck...

  • Malcolm Farrell
    Malcolm Farrell Jul 19, 2012

    Just to add my success with the result of fitting a new regulator to my DMR-E55. Dates from 2004, this problem being the first since then.

  • miss_honeych
    miss_honeych Oct 23, 2012

    Can anyone please confirm if this solution applies to the DMR EX769EB model? I am getting similar messages about self-check, but also about the hard disc being scratched. Many thanks for any help!


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Hi again

Well done!

I am so pleased to hear that you have restored the DMR E55 and for taking the trouble to let me know. It's always satisfying to achieve something like that and I guess you'll get even more pleasure from using it now than you did before. They are good machines and well worth the effort to keep them going.

Thanks again and kind regards

Posted on Feb 01, 2009

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