5-8
5
Blank Display (backlight bulb is lit)
1) Press the Power Button on the DVI Controller (LED should not be illuminated), wait 30 seconds
and press the DVI Power Button again (green LED should illuminate).
2) Using the Display Adjustment Buttons, navigate to the SYSTEM MENU and perform the RESET
function.
3) Check the DVI cable connection (from the Control Computer) on the right side of the Display/
Touchscreen assembly.
4) Check the DVI cable connection at the Control Computer.
5) Remove the backup flashcard from the Control Computer and perform a power reset.
WARNING: Disconnecting VAC power from the TR250 without performing a “Shut Down
Computer” may require the use of a USB keyboard in order to recover.
If the Display comes up normally, replace the flashcard.
6) Check for +12 VDC at the DVI power input.
If voltage is incorrect, check the +12 VDC cable connection (pigtail) located just below
the Control Computer +24 VDC input connection.
7) Check the +5 and +12 VDC Power Supply output voltages on the upper connector on the front
of the Power Supply Chassis.
If voltages are incorrect, the +5 and +12 VDC Power Supply may be defective or
require adjustment.
If voltage is correct, the Distribution PCB may be defective
8) Check the +24 VDC Power Supply output voltages on the upper connector on the front of the
Power Supply Chassis.
If voltages are incorrect, the +24 VDC Power Supply may be defective or require
adjustment.
9) Check the +24 VDC at the Control Computer VDC input.
If voltages are incorrect, the Distribution PCB may be defective.
10) Replace the Display/Touchscreen assembly.
11) Possible defective Control Computer.
Display
To Next Page
Loading...
