Question about Panasonic DMR-EX75EB-S DVD Recorder/HDD Recorder

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Panasonic dmr-ex75 fault u81 - Panasonic DMR-EX75EB-S DVD Recorder/HDD Recorder

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6ya6ya
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Posted on Jan 02, 2017

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leethedeuce
  • 4472 Answers

SOURCE: I have a panasonic DVD recorder model numberDMR

How old is the unit? Have you tried unplugging it for a half hour and restarting the machine? This can be caused by many things this U81 error literally means 'Microprocessor Communication Error on the Universal asynchronous receiver/transmitter'
I would make sure the unit is in a well ventilated area. I would also contact panasonic if the problem persists and see what they can do as far as repairing/replacing the unit at little or no cost to you. I can get you their contact info if you give me your general location.
Thank you,
Lee

Posted on Aug 31, 2010

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taran_2005
  • 10515 Answers

SOURCE: Panasonic DMR-EX75 EB-S 160Gb DVD

Hi,

To my knowledge and on most Panasonic UK/Euro models/versions, error code "U81" indicates glitch in the firmware, specifically, on its initial diagnostic mode, the system could not detect "Freeview" signals. The concern might have been caused by the absence of an incoming TV signal. Should this hold true, I then suspect that there is nothing wrong with the Panasonic unit but rather the Freeview service in your location or configuration/settings of the provider signals or the tuner.


Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Dec 16, 2010

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1 Answer

What does U81 mean


It could mean there is a fault on one of the circuit boards. See
http://www.avforums.com/threads/panasonic-dmr-ex75-85-u81-error-repaired-solved.1486954/

Aug 25, 2014 | Panasonic DMR-EX75EB-S DVD Recorder/HDD...

1 Answer

What does U81 Mean on my DMR-EX75


Just make it a factory reset. Refer its user manual for details. Unplug it from AC mains.

Jun 03, 2012 | Panasonic Televison & Video

1 Answer

Panasonic dmr-ex75 dvd drive is faulty


Hi there,
Well can you please explain the problem regrading the dvd drive on your panasonic dmr-ex75?
Anyway most of the time the fault is simple like dvd drive won't get outside the tray, if this is the problem then just shutdown your panasonic dmr for 10 minutes and turn it on and check if it works. please post further comments for detailed help.

Good Luck
Regards

Oct 06, 2011 | Panasonic Televison & Video

1 Answer

I gave a dmr-ex75 hardly gets used and it has come up u81 it will not allow me to do anything other than power stand by totally no functions was wondering way to do


Hi, Check all connections on back of set. Check fuses. Unplug TV for 30 minutes and then try again. Check batteries on remote. Good luck.

Sep 10, 2011 | Panasonic Televison & Video

1 Answer

My DMR EX75EB it fails to operate and a code of U81 comes up.


This is one of several error codes generated by the main microprocessor IC which are tripped by corruption, preventing proper operation and which may require the processor to be reset (where practical) or replaced.

The U81 and U80 codes don't mean anything in particular because the corruption error could be caused by a number of different reasons. It does not point to any specific one fault. This is where the confusion sets in as to the origin of the 'error code' in any device.

U81 means (in technical terms) 'microprocessor communication malfunction' on the universal asynchronous receiver/transmitter' or 'microprocessor feedback information error'.

This is not something the user should undertake to repair themselves; it should really go to an authorised Panasonic repair centre. The cost depends on the parts used and the labour, however, it is not unfixable. You can always get a quote on this and a second opinion, then decide for yourself if it is economical or not.

I posted this 'advice' for this model previously. The DMR-EX75 and DMR-EX85 are prone to U81 - which is a common error code.

Mar 14, 2011 | Panasonic DMR-EX75EB-S DVD Recorder/HDD...

2 Answers

Panasonic DMR-EX75 has stopped receiving digital signal


Panasonic DMR-EX75 has stoped receiving digital signa

Aug 01, 2009 | Panasonic Televison & Video

2 Answers

Read failure o DVDs on Panasonic DMR-EX75


You need a lens cleaner to clean the lens of ur DVD recorder..

Dec 09, 2008 | Panasonic DMR-EX75EB-S DVD Recorder/HDD...

4 Answers

DMR-EX75 error U81 has occurred. an online forum suggests this is an internal software error & unit should be replaced.However, the unit is now working fine (after a bit of off/on shenanigans).With 1 month...


I had this problem when first bought player, and as you checked on forums which suggested software error and said get replacement. Took to approved repairer who had it on test bed for 2 weeks with no problems. Brought it home connected it up and since then (6 months) no error codes. Think my problem was caused by connecting cable to AV1 rather than AV2 as I have now (HDMI cable to television) but could just be a coincidence. Probably a bit simplistsic and you may have already tried this but thought worth mentioning anyway - good luck!

Nov 22, 2007 | Panasonic DMR-EX75EB-S DVD Recorder/HDD...

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