Proface AGP3500 - 10.4 DIO HMI" User Manual
Page 221
GP3000 Series Hardware Manual
9-12
Procedure for replacing the backlight
(1)
Unplug the power cord from the main power supply.
(2)
Remove the retaining screws (6) on the rear cover.
(3)
Open the rear cover carefully from the bottom of the unit to the top.
(4)
Remove the setscrew (1) on the circuit board chassis.
(5)
Open the circuit board chassis, it’s turn left to right.
• Remove the GP unit from the equipment to which the unit has been incorporated,
and work with the GP unit with the display surface facing downward. Be sure to
perform the backlight changeover on a flat, level surface. This will prevent damage
to the GP unit and the accidental cutting of any of its power cord.
• Be sure to protect the display surface to prevent damage during the operations.
• Do not let the attachment screws fall inside the GP, or lose them
• A hot circuit board chassis can burn you. Be sure the chassis has cooled completely
prior to replacing the backlights.
Screws
Screws
Setscrew
Circuit board chassis
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