Fault Tree: Changing Cm Pcb / Replace Eeprom - Rational SCC Series Training Manual

Fault tree: Changing CM pcb / replace EEPROM

2 reasons to follow below procedure:
- Changing of pcb (software version on replacement pcb is not known)
- Unit display „E1" - replace external memory with new EEPROM
Do NOT connect external EEPROM as software version of pcb might
Disconnect unit from power supply
(Remove fuses F1 and F2)
Replace new PCB
Note:
not be compatible with pcb without updating!
Reconnect unit from power supply
(¿ x fuses F1 and F2 back)
Software update of pcb to
C1-07-01 or later
Disconnect unit from power supply
(Remove fuses F1 and F2)
Reconnect EEPROM to pcb
Reconnect unit from power supply
(¿ x fuses F1 and F2 back)
Error „E1" still existing
Call Rational Service
Edition 10-2008
CM
OK
33