Panasonic S-45PU1E5 Technical Data & Service Manual page 622

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Regarding the remote controller check, refer to the Reference Materials.
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For information on the procedures for replacing the nonvolatile memory (EEPROM) of the indoor unit and/or replacing the
indoor unit's control board, refer to the manual that is packaged with the indoor unit service board.
Outdoor Unit Control PCB
CR-50PE1E5 : Up side (U-50PE1E5)
(for single-phase outdoor unit PCB)
5
EEPROM
TERMINAL
A746844 : (U-100PE1E5)
(for single-phase outdoor unit PCB)
TERMINAL EEPROM
5-14
A746894 : (U-60PE1E5, U-71PE1E5)
(for single-phase outdoor unit PCB)
TERMINAL
A746845 : (U-125PE1E5, U-140PE1E5)
(for single-phase outdoor unit PCB)
TERMINAL
EEPROM
EEPROM