While you wait for answers, we may have found some information which could help you.
Click here for Displays Power Displayhow do i remove a disc?
md4020 voltage regulator?
How to fix F61 on Panasonic SC-PT750 DVD Home theatre Sound System?
How to mend Panasonic dvd player dmr ez49v?
Voltage Regulator?
Panasonic DVD Recorder Screen 'Noise'?