Question about Panasonic DMR-EX75EB-S DVD Recorder/HDD Recorder
U81 error literally means 'Microprocessor Communication Error on the Universal asynchronous receiver/transmitter'.
This error can be caused by a number of different reasons but one of the most common is a software / firmware problem relating to the Freeview part of the unit.
If you turn the unit off for 30 minutes it should reset the fault.
At this point to need to check what version of firmware you have installed and then check the Panasonic website for your country for the latest version.
Posted on Jul 02, 2011
Tips for a great answer:
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.
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