2000
- FIRE ALARM SOLUTIONS TECHNICAL DESCRIPTION
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7. MAINTENANCE
Always carry out maintenance on the control unit in a de-energized state.
7.1. DE-ENERGIZATION THE CIE
Before any maintenance, de-energize the control unit.
a) Remove J2 to disconnect the batteries.
b) Switch off the disconnect device.
c) Remove J1 to disconnect the power supply.
1. J2
2. J1
7.2. REMOVAL OF THE LCD MODULE
a) De-enegize the control unit, see 7.1. DE-ENERGIZATION THE CIE on page 26.
b) Disconnect all the cables connected to the main board, see arrows.
c) Remove the four screws that hold the LCD module in place.
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