Eeprom Data Corrupted Error - Fujitsu Airstage VR-II Series Service Manual

Trouble shooting 30
OUTDOOR UNIT Error Method:

EEPROM data corrupted error

Detective Actuators:
Outdoor unit Main PCB
Forecast of Cause : 1. Noise, momentary open, voltage drop 2. Main PCB defective
Check Point 1-1 : Turn the power on again.
Error generated again after Field setting all clear (push button SW F3
(function mode) -35 execution) and the power was turned back on?
YES
Check Point 2 : Replace Main PCB
Change Main PCB and set up the original address.
Indicate or Display:
E62. 8
Outdoor Unit : E. 6 2. 8
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Error Code : 9 U / 6 2
Detective details:
Set contents sum value memorized in EEPROM and sum value calculated
based on the set contents read from EEPROM do not match
Regarding the sum value, only the contents set in the push button SW
*
setting mode (F2) shall be the objective.
Check Point 1-2 : Noise, momentary open, voltage drop
Check if temporary voltage drop was not generated.
Check if momentary open was not generated.
Check if ground is connection correctly or there are no related cables near the power line.
Reconfigure the setting of F2 (setting mode) by push button SW
* To clear the setting of F2 by Field setting all clear.
04-39
Filter LED Continuous Flash.
NO
.