4-2
Confidential
1.1 Rewriting the firmware
(Panel firmware, Sub firmware, Main firmware)
The following two methods are available for rewriting the firmware (Sub firmware and Main
firmware).
- Rewriting using a computer
- Rewriting using USB flash memory
1.1.1 Checking firmware version
■ Non Touch panel model
Check if the firmware written on the main PCB ASSY is the latest version or not. If it is the
latest version, there is no need to write the firmware. If it is not, make sure to write the
firmware to the main PCB ASSY in accordance with "1.1.2 Rewriting the firmware using
computer" or "1.1.3 Rewriting the firmware using USB flash memory" in this chapter.
■ Touch panel model
Check if the firmware written on the Main PCB and the firmware written in the Panel PCB are
the latest versions. If they are the latest versions, there is no need to rewrite the firmware.
If either of the firmware is not the latest version, make sure to rewrite the firmware which is not
the latest version in accordance with "1.1.2 Rewriting the firmware using computer" or "1.1.3
Rewriting the firmware using USB flash memory" in this chapter.
<How to check firmware version>
Press the 2 and 5 buttons in this order in the initial state of the maintenance mode. Then, the
firmware version information is displayed on the LCD.
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