56
6-3-2
I/O Checks
In the Maintenance Mode Menu, use the Up and Down Keys to move the bar
cursor to I/O Check. When you then press the Enter Key, the following menu
will be displayed.
Quit
I/O CHECK MENU
Function Key
Touch Switch
Comm. Check
LCD Display
Buzzer
Backlight Check
Move the bar cursor to the item you want to check, and then press the Enter
Key.
Function Key Check
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
F13
F14
F15
F16
F17
F18
F19
F20
F21
F22
F23
F24
F25
F26
F27
F28
F29
F30
F31
F32
F33
F34
F35
F36
F37
F38
F39
F40
F41
F42
F43
F44
F45
F46
F47
F48
F49
F50
F51
F52
F53
F54
F55
F56
F57
F58
F59
F60
F61
F62
F63
F64
The operation of the function keys can be checked if a 12-key Function Key
Unit is connected. Press a function key. If the number of that key is displayed
in reverse video on the screen, then it is operating properly. Key numbers are
not transmitted to the host during the check operation. Up to two keys can be
pressed simultaneously.
The NT20M-FK210 has 12 standard function keys, so you can use F1 to
F12.
To return to the I/O Check Menu, press the Buzzer Key, Up Key, and Down
Key simultaneously.
A touch switch operation check can be carried out for PTs with touch panels (i.e.,
DT-type PTs) by pressing each switch displayed on the screen. If a given switch
is displayed in reverse video after being pressed for approximately 0.5 second,
then that switch is okay. If “key input sound” is set to ON in the Memory Switch
Menu in Maintenance Mode, then the buzzer sounds simultaneously with the
reverse video display. The switch numbers are not transmitted to the host.
To return to the I/O Check Menu, press the Buzzer, Up, and Down system keys
simultaneously.
When external input terminals turn ON, the corresponding function keys are dis-
played in reverse video. When a 12-key Function Key Unit is connected, F1
through F12 correspond to IN0 through IN11.
Touch Switches (DT-type
PTs)
External Function Key Input
Check
Maintenance Mode
Section 6-3
