Question about Panasonic DMR-EX75EB-S DVD Recorder/HDD Recorder
I have posted advice on the possible cause behind this error code (as well as other members on FixYa) for this model DVD recorder previously. For you I will re-iterate:
The U81 error code is a common problem with many Panasonic DVD recorders of the DMR-EX series.
This is one of several error codes generated by the main microprocessor IC in the unit which are tripped by corruption, preventing proper operation and which may require the processor to be reset (where practical) or replaced.
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 (if available) 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.
(sometimes unplugging the unit from the power point for up to 30 minutes, then reconnecting resets it completely and clears the error code with no further remedial action required)
Usually when this error occurs, and persists, the unit cannot be reset by the user. In your case, the constant shutdown may also likely be a fault in the switchmode power supply as well as a problem with the microprocessor. It may or may not prove an expensive exercise.
Certainly worth investigating at least. It's up to you as to what you decide to do from here. I hope I have shed some light on the subject for you and similar people who have experienced this particular error display.
Posted on Apr 03, 2011
I know the perfect fix for this unit. It's called a big bloody hammer!!!!! How the hell Panasonic put this peice of **** in the market is criminal. Throw/smash the thing into a 1000 peices and move on with your life.
Posted on Jun 20, 2011
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Posted on Jan 02, 2017
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