OPTO 22 G4LC32, User Manual

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G4LC32 User’s Guide
Display EPROM Location
INSTALLATION
4-8
6. Remove the two screws found on the bottom of the front panel door and slip off the door bottom.
7. Slide out the circuit board found inside the front panel about 2 in.
8. Unplug the keypad cable from the circuit board.
9. Continue sliding out the display circuit board to expose the display EPROM.
10. Observe anti-static precautions and carefully remove the EPROM.
11. Install the new EPROM.
12. Reverse the preceding steps to restore the controller.