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Chapter 1 Quick Guide
50-key pad (Phone-type key layout)
Pressing the right-hand trigger switch (M4 key) with the SF key held down enables or disables the
backlight function.
Backlight Off or Dim
(The backlight function is
Disable when you turn the
BHT power on.)
Right-hand
trigger switch
(M4)
Press the right-hand trigger
switch while holding down
SF.
Backlight Off or Dim
(The backlight function is
Enable.)
Backlight On
Press the right-hand
trigger switch while
holding down SF.
Press the right-hand
trigger switch while
holding down SF.
If no key is pressed
for 3 seconds.*
Press any key (except fo
r
the
simultaneous depression of the
right-hand trigger switch and SF) or
tap the touch screen.
SF key
*For one minute if the BHT is placed on the CU.
In user programs, you can select the key to be used for enabling or disabling the backlight function
(instead of the initial setting: combination of SF key and right-hand trigger switch (M4)), as well as
modifying the ON-duration of the backlight before the automatic turning-off.
You can enable or disable the backlight function on the Backlight menu, instead of pressing the
backlight function on/off key.
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