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Basic Operation Section 8-5
8-5 Basic Operation
8-5-1 Startup
According to the operation status of the LCD Option Board, it will display dif-
ferent screens when the CPU Unit power is turned ON.
Normal Startup
When the CPU Unit power is turned ON, the LCD Option Board will initialize
hardware and check EEPROM, then check communication between the LCD
Option Board and the CPU Unit. If startup is normal, LCD will display Clock
Screen as shown below.
Clock Screen
Startup Failure
• If EEPROM is faulty, LCD will display EEPROM Error Screen and the red
backlight will blink. Refer to 8-7 Trouble Shooting.
EEPROM Error Screen
• If the communication between the LCD Option Board and the CPU Unit
has failed, LCD will display NG screen. Refer to 8-7 Trouble Shooting.
NG Screen
Note If the LCD Option Board receives no response from the CPU Unit within 3
seconds during operation, it will also display NG screen.
No. Description
a Type of the CPU Unit
b Date of the CPU Unit
c Time of the CPU Unit
d Week abbreviation of the CPU Unit
a
b
c
d
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