Reference Document; Remote Controller Service Function - Panasonic 2WAY Multi Technical & Service Manual

5. Reference Document

(1) Outdoor Main Board Replacement Sequence and Remote Controller Service Function
Outdoor Main Board Replacement Sequence
To replace the outdoor main board, perform the work through the following sequence.
1) Turn off the power supply, and replace the outdoor main board.
2) Transfer the nonvolatile memory (EEPROM) from the old board to the new board.
● Because engine operation time, oil check time and other data, as well as the various setting values are
stored in the nonvolatile memory (EEPROM) inside the outdoor main board, when replacing the outdoor
main board the nonvolatile memory needs to be removed from the old board and transferred to the new
board.
● The operation data, setting values and other information will be carried over into the new board.
● Handle the nonvolatile memory with care.
Because the nonvolatile memory needs to be installed in a certain direction (see diagram below), be
careful to correctly connect it to the designated sockets. Faulty directional installation will cause the
memory to break.
● Because the legs are easily bent, be careful when removing or plugging in the memory.
3) Turn on the power supply, and confi rm operation.
Fit the notched section of the IC socket
into the notched semicircle section of the
nonvolatile memory.
Nonvolatile memory
IC socket
V–1