Red Lion G308A User Manual

Bulletin No. G308A BACK-A

Drawing No. LP0623

Released: 10/06

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G308A BACKLIGHT ASSEMBLY

BACKLIGHT REPLACEMENT PROCEDURE

1. Remove the power and PLC Communications connectors from the unit.

2. Remove the four screws from the rear cover.

3. Locate the inverter board (refer to Figure 1).

4. Carefully remove the backlight connector from its connector housing on the
inverter board. (refer to Figure 1).

5. Depress the backlight release tab and carefully remove the backlight as
indicated in Figure 2.

6. Repeat steps 4 and 5 for the second backlight.

7. To install the new backlight assembly, reverse the above steps. Ensure that
the florescent tubes of the backlight assembly face towards the display. Use
caution when inserting the new assembly so that it is not twisted or pushed
on an angle. The backlight assembly is fragile and may easily be broken.

8. Apply the enclosed label to the rear cover in the area indicated in Figure 3.
Field replacement of the backlight assembly voids the Hazardous Locations
rating of this unit.

G308

G3BR08A0G308A Backlight Assembly

PART NUMBERDESCRIPTIONMODEL NO.

ORDERING INFORMATION

WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT
EQUIPMENT UNLESS POWER HAS BEEN DISCONNECTED
AND THE AREA IS KNOWN TO BE NON-HAZARDOUS.

WARNING - EXPLOSION HAZARD - THE AREA MUST BE KNOWN
TO BE NON-HAZARDOUS BEFORE SERVICING/ REPLACING THE
UNIT AND BEFORE INSTALLING OR REMOVING I/O, INVERTER,
BACKLIGHT, WIRING AND BATTERY.

CAUTION: RISK OF ELECTRIC SHOCK

The inverter board supplies the high voltage to operate the
backlight. Touching the inverter board while under power may
result in injury to personnel. Disconnect all power before
installing or removing backlight assembly.

Figure 1

Figure 3

Figure 2

CAUTION - Backlight is not field replaceable for hazardous

location applications. Unit must be returned to Red Lion
Controls for repair.