Daikin intelligent touch Controller DCS601C51 Operation Manual page 106

When it is desired to adjust screen brightness, contrast and buzzer sound level
Item
Screen brightness, contrast
and buzzer sound adjustment
is desired.
105
Description and Corrective Action
The screen brightness, contrast and buzzer sound level are
factory adjusted properly before shipment, but in case where
the screen is hard to see and the buzzer is hard to hear, for
example, according to the actual installation condition and
usage, the screen brightness, contrast and buzzer sound
level can be adjusted by the following method.
[Adjustment Method]
Adjust the volume (variable resistor) on the left side of the
intelligent Touch Controller with a Phillips head screwdriver
while checking each level.
The buzzer sound, screen brightness and screen contrast
volume switches are located in sequence from the top as
shown below.
loud low
Buzzer sound
adjusting volume
bright dark
Liquid crystal
backlight brightness
adjusting volume
pale dark
Contrast adjusting
volume
Note
¡Since each volume is a precision component part, do
not turn the volume switch with excessive force.
It should be noted that a fault is caused to the switch.
¡Do not touch other switches.
The buzzer volume and liquid crystal backlight
brightness can be adjusted with the volume switch
as described in the diagram above, but adjustment
is usually not necessary.
If electric components in the intelligent Touch Controller are
charged with static electricity, it may cause failure.
Be sure to discharge the static electricity accumulated in
your body before attempting any operation.
To discharge yourself, touch a ground metal object such as
a control panel.
R E
S E
T
CAUTION