Question about Panasonic DMR-EX85EB-S DVD Recorder/HDD Recorder

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Hi, My 1 yr old has found my Panasonic DMR-EX85 has become her new toy. She has pressed a button that has created a fault code of U81 locking the unit up. Can you help Thanks heaps, Greg Hughes, NSW, Australia

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  • pietaandgreg Sep 06, 2010

    After read links posted i think it is time to replace unit. Disapponted with Panasonic product, happy with FixYa.com for fast response plus information given

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I have seen your problem on here for a few days now.When I see that,since noone wants to touch it I will at least do some research to find out something at least helpful if there is any to be found even though I am unfamiliar with the particular product.

Here is another link on similar model.
http://www.avforums.com/forums/dvd-blu-ray-recorders-media/637678-error-code-u81-any-ideas.html

Here are multiple people with the same code on various models which seems like a fairly simple reset/fix.
http://www.digitalspy.com/technology/a59786/panasonic-dmr-ex75.html?start=2
Hopefully this will enable you to enjoy DVD's with replacing the unit.If it does not,let me know and I will get back as soon as I can.Tomorrow I will at least check,but after that I will be travelling for about a week and most likely will not have internet.
Good luck! Greg

Posted on Sep 06, 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

Dmr-ex85 shows u81 code and is not functioning at all, says please wait but eventually just goes onto error code. no buttons will function?


Physically unplug power from the unit for a minute or two.
Connect power cord to unit and Simultaneously Press & Hold
both the [STOP] and Channel UP [^] for 5 seconds. This will
force Eject the DVD tray. Remove any disc if present.
Cycle the power again if necessary and wait for the unit to
go through its self check cycle. If after several attempts, and
you continue to get this error, then your Ram drive may need
to be replaced.

Jul 12, 2011 | Panasonic DMR-EX85EB-S DVD Recorder/HDD...

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...

1 Answer

TENGO EL ERROR U81 EL DVD RECORDER DMR-EX85


Tienes que comprobar que el condensador C1801 no se haya hinchado o tenga fugas.

Si es así, comprueba tambiñen que el IC1801 no haya rebentado, usa una lupa.

Cambia el condensador y el circuito integrado si ha rebentado.


Normalmente con cambiar el condensador se soluciona el problema.


El condensador está en la placa principal, justo debajo de la placa digital, la que tiene los cables planos que van a la unidad dvd.


Espero que te sea de ayuda.

Feb 15, 2011 | Panasonic DMR-EX85EB-S DVD Recorder/HDD...

1 Answer

After connecting a new TV samsung 37C6000, my trhee year old panasonic dmr-ex85 shows the U81 error and doesnt tune the tdt channels nor works properly. What can I do?


Check that C1801 is not leaky. If so, check if IC1801 has blown. If it has blown, it will also need to be replaced.


Usually it's only C1801 leaky, replace it and thats it.


You can find the capacitor on the main board, under the digital board that has ribbon cables going to the dvd drive.

Hope this helps.

Jan 29, 2011 | Panasonic DMR-EX85EB-S DVD Recorder/HDD...

1 Answer

Panasonic dmr ex85 u81 what does i do please how to do an hard reset for the device please


Hard reset won't solve your problem.


Check that C1801 is not leaky. If so, check if IC1801 has blown. If it has blown, it will also need to be replaced.


Usually it's only C1801 leaky, replace it and thats it.


You can find the capacitor on the main board, under the digital board that has ribbon cables going to the dvd drive.

Hope this helps.

Nov 14, 2010 | Panasonic DMR-EX85EB-S DVD Recorder/HDD...

1 Answer

Recorder has stopped decoding SD digital TV but analogue TV is OK


Dry joint - faulty capacitor on the PC board of the decoder. Found by wiggling the components and resoldering

Feb 07, 2010 | Panasonic Televison & Video

1 Answer

Actually I have a 4 yr old dmr eh50 panasonic dvd recorder


Make sure remote is set to unit code ex: press enter and 1 at same time see if this matches try enter and 2 or enter and 3 see if this matches and works

Oct 03, 2009 | Panasonic DMR-E50 DVD Recorder

1 Answer

DMR-EX85 U81 error fix..help..


NEED DVD UNIT ASSY REPLACED
VXY1814 DVD RAM DRIVE 437.53

Aug 17, 2009 | Panasonic DMR-EX85EB-S DVD Recorder/HDD...

1 Answer

Panasonic DMR-EX85 code error U81


You will need to call Panasonic customer support for more information on this problem. here is their contact information. Accessories; or make Customer Service and Literature requests by visiting our Web Site at: http://www.panasonic.com/support or, contact us via the web at: http://www.panasonic.com/contactinfo You may also contact us directly at: 1-800-211-PANA (7262), Monday-Friday 9 am-9 pm; Saturday-Sunday 10 am-7 pm, EST. For hearing or speech impaired TTY users, TTY : 1-877-833-8855 Accessory Purchases Purchase Parts, Accessories and Instruction Books online for all Panasonic Products by visiting our Web Site at: http://www.pasc.panasonic.com or, send your request by E-mail to: npcparts@panasonic.com You may also contact us directly at: 1-800-332-5368 (Phone) 1-800-237-9080 (Fax Only) (Monday ? Friday 9 am to 8 pm, EST.) Panasonic Services Company 20421 84th Avenue South, Kent, WA 98032 (We Accept Visa, MasterCard, Discover Card, American Express, and Personal Checks) I hope this helps you with your problem.

May 21, 2009 | Panasonic DMR-EX85EB-S DVD Recorder/HDD...

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