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Power supply replacement – Daktronics GPR-12EV-RGB User Manual

Page 43

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Parts Replacement

37

Power Supply Replacement

Power supplies, shown in Figure 36, in GalaxyPro

®

Revolution displays handle a range of

power from 120 to 240 volts. The power supply contains a power distribution board on one

edge that receives AC power and then supplies DC power to modules and other internal

components. Each module is connected to a jack on the power distribution board by an

individual power cable. When replacing a power supply, note which one or two modules are

connected to each jack.

Tool required: Phillips

screwdriver

1. Turn off power

to the display.

2. Remove the

module directly

in front of the

appropriate

power supply.

3. Disconnect the

connectors from

the power

source as well as

those going to

the modules,

noting the jack

numbers going

to each module.

Also, unplug the

ISAC fan

control.

4. Loosen the

screw holding

the power

supply bracket

to the cabinet

upright and lift it off the hooks.

5. Carefully pull the power supply out of the cabinet.

6. Move the new power supply into place and tighten the screw on the support bracket.

7. Reconnect all the plugs so that each module receives power and plug the ISAC fan

control back in. Refer to the appropriate Layout Drawing for module connections, if

needed.

Figure 36: Power Supply

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