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TeamPos 3000 XL and XL
2
Troubleshooting
D900000145 Issue 3 8-4
8.4 Display/LCD is blank at all times
No
Check item
Judgment
Action
1
Is there power to the terminal and
other peripherals?
Y
N
Go to No. 2.
Go to the Power Cannot Be Turned. On
in troubleshooting section.
2
Are the display cables connected
securely at both ends?
Y
N
Go to No. 3.
Connect the cable/s properly and retest.
3
Is display correct after adjusting
brightness/contrast on the LCD?
Y
N
End.
Go to No. 4.
4
Is the display getting power?
(Note: the D22 and D25 have a green
LED on the front of the panel that will
be lit if either the power or signal is
supplied to the LCD. Having the light
lit does not necessarily mean there is
power to the LCD)
Y
N
Go to No. 5.
Replace source of power (ex. AC
adapter, Powered USB I/O Board in
Controller, powered USB cable, etc.).
5
Is there a signal getting to the LCD?
While still powered up and running,
remove the powered USB cable to the
D22 or D25 to see if the green light
stays lit.
Y
N
Go to No. 6.
Go to No. 7.
6
Does the display function after
replacing the data cable?
Y
N
End.
Go to No. 7.
7
Does the display function after
replacing the LCD/display?
Y
N
End.
Go to No. 8.
8
Does the display function after
replacing the motherboard?
Y
N
End.
Go to No. 9.
9
Does the display function after
replacing the backplane assembly?
Y
N
End.
Change the controller.
Caution: Before replacing any boards, unplug the power cable and make
sure the motherboard standby power LED light is out.