Omega Vehicle Security OMP-MODL Appendix D Changing the Clock / Memory Backup Battery, 11-118

11... APPENDIX E: CHANGING THE OMP-MODL EPROM

APPENDIX D: CHANGING THE CLOCK / MEMORY BACKUP BATTERY

The OMP-MODL internal memory and real-time clock are powered from a Panasonic BR2325 (or equivalent) lithium cell when the OMP-MODL Main Power

EXTERNAL POWER FUSE LITHIUM CELL

EPROM

BATTERY PIGTAIL & CONNECTOR

ML006

switch is OFF. The cell is mounted in a socket located on the bottom of the MLCPU- 1 module and is accessed by removing the bottom plate/hanger or ML-BATT module.

To change the lithium cell:

1. Download any valuable data retained in OMP-MODL memory.

2. Turn off the OMP-MODL power

3. Remove the side retaining screws ( 4 ) holding the bottom plate or ML-BATT module in place.

4. The lithium cell is located in the socket on the exposed circuit board.

5. Gently pry the cell to be replaced out of its holder with a small, blunt, non-metallic tool being careful not to puncture the cell or damage any surrounding circuitry. Insulated tweezers may assist in pulling the cell out of the holder. Use care during this step so that the spring loaded contact is not bent up excessively.

6. Slide a new cell (Panasonic BR2323 or equivalent) into the holder with the positive terminal UP. A properly installed cell will seat approximately flush with the top of the socket.

7. Reassemble the bottom plate and/or ML-BATT module onto the MLCPU-1 module and reinstall the four side retaining screws.

8. Power up the OMP-MODL. Clear the unit memory and upon loading of a new Program Net, the unit is ready to deploy.

11-118 USING THE OMP-MODL