Question about Panasonic DMR-EX773 DVD Player/Recorder - 1080p - 160 GB HDD - Black -

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Dmr ex77 turns on nothing happens black screen with U81 on display

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 814 Answers

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: 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.

Posted on Jun 08, 2009

tvservice306
  • 458 Answers

SOURCE: DMR-EX85 U81 error fix..help..

NEED DVD UNIT ASSY REPLACED
VXY1814 DVD RAM DRIVE 437.53

Posted on Aug 18, 2009

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

Demonic-2011
  • 467 Answers

SOURCE: My DMR EX75EB it fails

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.

Posted on Mar 14, 2011

Testimonial: "Many thanks for your input, after speaking to Panasonic, you are correct, they tell me it would cost approx £100 to repair so its a bin job:-("

  • 60 Answers

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.

Posted on Apr 12, 2011

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1 Answer

I want to be able to record on my DMR EX77 from another DVD player. cant locate how to do this. Thanks


Hello, maybe you can try to copy your DVD and backup on your DMR EX77. And in this process you may need a DVD Copy. Hope this idea can help!
Leawo DVD Copy Software Clone Copy DVD movie to DVD RW disc or hard drive...

Aug 30, 2016 | Televison & Video

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

My dmr-e50 ca not play any disc it display dvd drive eror


What is the error code being displayed? is it U81 U61 or U99? U61 is likely to be a DVD drive error. U99 is an electrical problem, while U81 is a microprocessor feedback information error. Your best option is to submit this recorder to a qualified service technician in an authorised Panasonic workshop, for a quote, and a second opinion on the likely repair costs and/or parts involved. (it helps to be more specific when posting questions here about DVD drive faults so we can advise people properly on the best course of action to solve the problem (however a few consumers do not know what device error codes are and what they mean; this is understandable in many cases).

The cost to fix this unit depends where you go and whom you deal with. It is up to you, but be warned; if the unit needs a new DVD drive, this could prove expensive.

Apr 07, 2011 | Panasonic DMR-E50 DVD Recorder

1 Answer

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.




Mar 24, 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

Panasonic DVD recorder won't recognize any disk inserted in tray


Hi,
I am just wondering if you found the solution to this problem as it has happened to ours.
Regards

Oct 11, 2009 | Panasonic DMR-EX75EB-S DVD Recorder/HDD...

2 Answers

Making my Panasonic DMR EX77 multi zone


i have the same player and wont play burned dvds

Sep 05, 2008 | Televison & Video

1 Answer

Multi region code for DVD


You need to hack the dvd reinstalled firmware, I can see if I find hacked firmware for your dvd

May 01, 2008 | Onkyo DV-CP704 DVD Player

3 Answers

My panasonic dmr ex77 is not multi region. How can i make it so?


The procedure below is a hack , can interfere with the normal working of the DVD player

*** Please note *** You will need a laptop with an Infrared (IR) port to use this method.
Most modern laptops have now dispensed with IR ports in favour of WiFi and Bluetooth, so you may need to forage around and find an older laptop with IR.

1) Download both parts of Chachi's RAR file (both of these files can be easily found on this forum).
You will need both files, as the ISO image file has been split across two compressed files.

2) Using WinRAR or WinZip unpack the ISO image file to a folder on your hard disk (the desktop is a good place, so you can easily find it later).
To successfully unpack the ISO image file, both of Chachi's RAR files must reside in the same folder.
As you extract the ISO file from the first archive, WinRAR or WinZip will automatically move to the second file and continue the unpacking process.
After the unpacking process has completed you will be left with a single file with the extension ISO.

3) Using Nero (or similar), use the "Burn Image to Disk" feature to burn the ISO CD image onto a blank CD (just copying the ISO image file onto a CD will not work).
I used Nero to achieve this, but most CD burning software can do the same.

4) On the laptop, ensure that the IR port is set to COM2 in the BIOS (note the original settings, so you can put them back after you have reprogrammed DMR-EX77).
Try to select an older IR mode if available.
My old Toshiba Satellite 4030CDT only supported FAST IR modes and wouldn't work.
I then switched to an Acer Aspire 2000 and through trial and error found the "IrDA (HPSIR)" mode worked perfectly.

5) Boot the laptop from the CD
If your laptop does not give you the option to change the boot drive order at POST, you may need to temporarily change your boot drive order in the BIOS (note the original settings, so you can put them back after you have reprogrammed DMR-EX77).

6) When the laptop has sucessfully booted from the CD you will be presented with a menu.
Using the down cursor key, select option "4. Minimal Boot" and press return.

7) At the "A:\>" prompt type "cd winamp" and press return.

8) At the next prompt "A:\>WINAMP\" type "winsamp" and press return.

9) The Remote control test tool should now be loaded (blue screen with white text).

10) Press the "r" key to load in the REMOTE.TXT file (this file contains the IR signal information required to reprogram your DMR-EX77).

11) The captions "button 1" to "button 10" near the bottom of the screen will now have changed from white to pink.
These are the emulated buttons you will need to press in order to unlock you unit.
Ensure "button 1" is highlighted before proceeding to the next step.

12) Power on your DMR-EX77 and switch it to DVD mode.
You must ensure the disk tray is empty during this process.
I had my disk tray empty and ejected (sticking out) during the process just as a precaution.

13) Point the IR port on your laptop at the IR receiver on your DMR-EX77.
The IR port on the DMR-EX77 is located just above the DVD/CD Open/Close button on the right of the unit.
I found the optimum distance between the laptop and the infrared receiver on the DMR-EX77 was approximately 5~6 centimetres, any more and it may not work.

14) With the IR ports aligned and "button 1" highlighted in pink press the return key on the laptop, wait a moment, cursor right to "button 2" and press the return key, wait a moment, cursor right to "button 3" etc....
Keep repeating this procedure until you have entered all buttons highlighted in pink from 1 to 10 in order.
If your DMR-EX77 reacts as mine did during the process you may see the display on the DMR-EX77 change and also experience the TV channel changing.
Don't panic as this appears to be quite normal during the unlocking process.

15) If all has gone well the display on the DMR-EX77 should now read "HELLO" and you should hear the hard disk spin down for a second, then spin up again.
The DMR-EX77 has new reset itself and has successfully been reprogrammed.
Leave the unit alone for approximately 10~15 seconds before doing anything else, just to be on the safe side.

16) The buttons on the front of the DMR-EX77 unit will no longer function, so switch the DMR-EX77 off using the remote control.
If you left the tray poking out during the reprogramming process (as I did), just wait a few seconds and it will close automatically, you can then switch off the DMR-EX77 using the remote.
There is no need to disconnect the DMR-EX77 from the mains supply.

17) Switch the unit back on, pop in any region DVD you like, sit back and enjoy biggrin.gif

oops.gif If this procedure fails or you make a mistake don't panic! eek.gif

Switch off your DMR-EX77 using the power button and leave it off for a few seconds.
Switch back on your DMR-EX77 and when it's ready try the proceedure again.

I failed several times initially, but it didn't seem to do any harm and everything is fine.

You may also find that changing the IR mode setting in your laptops BIOS may help.
I had to try a few different modes until I found one that worked.

If you can't find the files you need, or require the procedure for using another type of device to region free your DMR-EX77, then visit:
http://www.dcevolution.net/panasonic...tpage&Itemid=1 user_offline.gif

Apr 22, 2008 | Televison & Video

1 Answer

How do I flash the firmware for a Panasonic DMR-EZ47V?


According to the Engineering channel schudle there is a new firmware (v.1.13)for the following panasonic models
DMR-EZ27, DMR-EZ47, DMR-EX77, DMR-EX87

This is scheduled to be broadcast on 6-2-08.

http://www.dtg.org.uk/retailer/download_schedule.pl user_offline.gif

Jan 31, 2008 | Panasonic DMR-EZ47V DVD Recorder/VCR

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