Remedy: 1 Main PCB failure Replace the main PCB ASSY.
Code: E702
Description: Read error in the flash ROM
Remedy: 1 Main PCB failure Replace the main PCB ASSY.
Code: E900
Description: An error occurred while initializing the NFC.
Remedy: 1 Connection failure of the panel flat cable Reconnect the panel flat cable. 2 Connection failure of the NFC flat cable Reconnect the NFC flat cable. 3 Connection failure of the ten key PCB flat cable Reconnect the ten key PCB flat cable. 4 Panel PCB failure Replace the panel PCB ASSY. 5 NFC PCB failure Replace the NFC PCB ASSY. 6 Ten key PCB failure Replace the ten key PCB ASSY. 7 Main PCB failure Replace the main PCB ASSY.
Code: EC00
Description: Overcurrent was caused because a USB device that did not meet the specifications was inserted into the USB port.
Remedy: <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. 1 USB host PCB failure Replace the USB host PCB ASSY. 2 Main PCB failure Replace the main PCB ASSY.
Code: F900
Description: The spec code was not entered correctly.
Remedy: 1 The power was turned OFF while function code 74 was running. Reenter the spec code. (Refer to “1.3.27 Configure for country/region and model (Function code 74)” in Chapter 5.) 2 Main PCB failure Replace the main PCB ASSY.