Technibel PHRIE Series - Page 128

128
FOR UNITS 257 & 307:
Procedure:
1) Before replacing the board (A3), make sure that the unit is switched off.
Check also that “Power” LED
- red - is Off.
2) Disconnect completely all wires and connectors from the board.
3) Remove the PCB from the spacers
4) Take out from the old board the EEPROM and possible wire jumpers.
EEPROM alarm LED
« Power » LED
EEPROM