Panasonic DMR-EX85EB-S DVD Recorder/HDD Recorder Logo

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Posted on Aug 17, 2009
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DMR-EX85 U81 error fix..help.. - Panasonic DMR-EX85EB-S DVD Recorder/HDD Recorder

  • Tony Jan 08, 2019

    This is a well known fault with Panasonic DVD players. If you search ebay you will find a repair kit containing 2 capacitors and an IC.https://www.ebay.co.uk/itm/U81-error-cod...
    If you are able to solder you can do this yourself. Its a bit fiddly but I can confirm it works because I did it 2 years ago.

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1 Answer

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  • Master 458 Answers
  • Posted on Aug 18, 2009
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Joined: Aug 05, 2009
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NEED DVD UNIT ASSY REPLACED
VXY1814 DVD RAM DRIVE 437.53

3 Related Answers

Anonymous

  • 153 Answers
  • Posted on Jul 12, 2011

SOURCE: dmr-ex85 shows u81 code and is not functioning at

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.

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Anonymous

  • 814 Answers
  • Posted on Jun 08, 2009

SOURCE: 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: [email protected] 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.

blanqui2000

  • 63 Answers
  • Posted on Apr 12, 2011

SOURCE: TENGO EL ERROR U81 EL

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.

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Related Questions:

0helpful
1answer

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/
1helpful
1answer

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.
3helpful
1answer

DVD recorder DMR-EX78EB - Keeps showinf error message 'U81' on display. This means that it does not perform set recordings. What causes this please and how can we fix it as I am fed up with finding...

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(s) 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 codes' 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 (and a similar) model previously. The DMR-EX series of models are prone to U81 - which is a common (and extremely irritating) error code. As I said, it is not unfixable, if you are prepared to spend a fair amount of money on the repairs by a qualified service technician in a fully equipped workshop with access to all the required components and service manuals.

Certainly worth investigating at least.




8helpful
1answer

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.
0helpful
1answer

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.

0helpful
1answer

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.

0helpful
1answer

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.

1helpful
2answers

The error message U81 comes on everytme I turn on the player. It also want play DVD's or allow me to change modes?

U81 is an error message indicating a microprocessor communications error/problem. This can be from a host of issues; probably time to take the unit in for service.
0helpful
1answer

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
1helpful
1answer

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: [email protected] 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.
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