Smartrise F220

17
Smartrise SRU LCD Screen Adjustment
If the LCD screen is
blank but the LEDs on
the SRU board are lit
then adjust
Potentiometer R249
(located above the
LCD screen) counter-
clockwise.
Keep turning
Potentiometer R249
counter-clockwise until
the display comes on.
Caution: Turning
Potentiometer R249
too far will cause dark
boxes to appear around
the letters and may
burn out the LCD
screen prematurely.
N o r m a l DZ
.. [ | ] P I : 1 T - 14
658 0 ’ 0 3 . 3 7 ”
C M D : 0 F P M : 0
Turn Potentiometer
R249 clockwise until
the dark boxes
disappear but you can
still read the screen.
N o r m a l D Z
.. [ | ] P I : 1 T - 14
658 0’ 03 . 3 7 ”
C M D : 0 F P M : 0