2-83
Confidential
Error code E500
An error occurred during access to the DRAM in the main PCB ASSY.
Error code E600
Write error in the EEPROM of the main PCB ASSY
Error code E701
System error in the flash ROM
Error code E702
Read error in the flash ROM
Error code E900
An error occurred while initializing the NFC.
Error code EC00
A USB device not within the specification is connected to the USB terminal, resulting in over
current.
Error code F900
The spec code was not entered correctly.
Step Cause Remedy
1
Malfunction of the main
firmware
Install the latest main firmware.
2 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Connection failure of the panel
PCB flat cable
Reconnect the panel PCB flat cable.
2
Connection failure of the NFC
PCB flat cable
Reconnect the NFC PCB flat cable.
3 Panel PCB failure Replace the panel PCB ASSY.
4 NFC PCB failure Replace the NFC PCB ASSY.
5 Main PCB failure Replace the main PCB ASSY.
<User Check>
• Disconnect the USB device from the USB flash memory port and turn the machine OFF.
Turn the machine ON again after a while.
• Replace the USB device with a different one.
Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
The power was turned OFF
while function code 74 was
running.
Reenter the spec code.
2 Main PCB failure Replace the main PCB ASSY.
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