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1-6 Requirements on PWB Replacement
1-6-1 Upgrading the firmware
Follow the procedure below to upgrade the firmware of main PWB, operation PWB, engine PWB, ISC PWB,
optional language and optional devices.
Preparation
Extract the file that has the download firmware and put them in the USB Memory.
Procedure
1. Perform maintenance item U000 (main-
tenance report output) and check U019
ROM version.
2. Press the power key on the operation
panel, and after verifying the power
indicator has gone off, switch off the
main power switch. And then unplug the
power cable from the wall outlet.
3. Insert the USB memory in which the
firmware has been written into a notch
hole of the machine.
4. Insert the power plug and turn the main
power switch on. Upgrading firmware
starts (blinking the memory LED).
Caution:
Never turn the main power switch off
during upgrading.
5. [Completed] is displayed on the touch
panel when upgrading is complete.
6. Press the power key on the operation
panel, and after verifying the power
indicator has gone off, switch off the
main power switch. And then unplug the
power cable from the wall outlet.
7. Wait for several seconds and then
remove the USB memory from the
machine.
8. Insert the power plug and turn the main
power switch on.
9. Perform maintenance item U000 (main-
tenance report output) and check that
U019 ROM version has been upgraded.
Y113350-5
Figure 1-6-1
1-6-1
2LL/2LJ/2LH
USB memory
Sevice Manual
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