Lx Series Installation and Operation Instructions
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Trinity Lx
59
Display
A blank screen does not necessarily indicate a problem; the display may be configured to automatically blank the
screen after a pre-set interval. Simply touch the screen to activate it. Confirm that 120V power is being supplied
to the appliance. Then, if the screen does not become active, check Figures 14-2 and 14-3 and follow the
verification procedures as outlined below:
Figure 14-2 All Models
Controller Connection Verification
Position Display Plug
Ensure the display is connected to the controller via
its 4-conductor signal cable by following the
procedure below:
1.
Remove the unit front cover.
2.
Remove the two #10 pan-head Phillips screws
securing the plastic display housing to the
cabinet.
3.
Pivot the housing down until its bottom edge
rests against the extended air tube or cabinet
sides.
4.
Verify that the two mating 4-position single-row
Molex housings are securely connected as
illustrated.
Figure 14-3 All Models
Display Power Supply Verification
Display Power Supply Unit
Ensure that the display power supply is operating
properly by following the procedure below:
1.
Using a DC voltmeter, check for 12VDC across
the +V and –V terminals of the power supply
2.
Remove the unit front cover.
3.
Remove the two #10 pan-head Phillips screws
and lift the panel cover off.
4.
Locate the 12VDC power supply at the front
right corner of the panel.
5.
Measure the voltage across the +V and –V
terminals on the right-hand end of the supply.
6.
If 12VDC is not detected across +V and –V,
replace the power supply with NTI PN83592-1.
DO NOT drop the plastic housing or allow it to swing down freely, it may be damaged
by forceful impact.
-V
ter
+V
ter
