4 access internal components, 5 grounding, 6 power installation – Daktronics Fuelight FL-3000 and FL-4500 Series 36 and 48 Petroleum Price Display and Cash/Credit Display User Manual
Page 19: 7 connect to the fuelight driver, Access internal components, 5 grounding 5.6, Power installation, Connect to the fuelight driver

Cash/Credit Display Installation
13
5.4 Access Internal Components
The door of Cash/Credit displays is secured by a screw (two screws secure the door on 2H displays).
1. Use a Phillips-head screwdriver to loosen the screw.
2. Open the door using the knob attached to the display face.
3. The power supply is attached inside the cabinet to the display’s backsheet, as shown in Figure 25,
and its location varies between display sizes.
5.5 Grounding
Like Fuelight displays, Cash/Credit displays do not require a local earth ground electrode.
5.6 Power Installation
Install Daktronics Cash/Credit displays using the
provided line, ground, and neutral conductors.
For this type of installation, the power circuit must
contain an isolated earth-ground conductor. Do
not connect neutral to ground at the disconnect or
at the display, this would violate electrical codes
and void the warranty. Use a disconnect so that all
ungrounded conductors can be disconnected.
To connect power to the display:
1. Route the power cord into the Cash/Credit display and connect to the 120V AC wires.
2. Use wire nuts or other appropriate hardware to connect power wires to the power supply harness or
pigtail, as shown in
3. Connect supply power ground wire to ground bus bar, as shown in Figure 26.
Note: Verify the power supply ground wire is connected to the ground bus bar.
5.7 Connect to the Fuelight Driver
Connect the 8 position Mat-N-Lok plug of harness
W-2709 from the cash/credit module to jack J18 on
a Fuelight driver, as shown in
EARTH
GROUND
SERIAL #
LABEL A
LABEL B
LABEL C
Figure 25: Internal Component Locations
Figure 26: Power Connection
Figure 27: Cash/Credit Display Connection to Driver