Service Call Conditiion; Sc Code E-14: Zero Cross Signal Detection Abnormal; Sc Code E-15: Main Switch Abnormal (U.s.a. Version Only) - Ricoh FW780 Service Manual

6. TROUBLESHOOTING
6.2 SERVICE CALL CONDITION
The following service conditions are newly added as the A251 and A252 copiers.
For other SC conditions, refer to the A163 copier for details. To clear SC E-15,
access SP38 and change the data from "1" to "0".
6.2.12 SC CODE E-14: ZERO CROSS SIGNAL DETECTION
ABNORMAL
- Definition -
The zero cross signal is not detected within 0.5 second after the main switch is
turned on.
- Points to check -
Main board
AC Drive board
6.2.13 SC CODE E-15: MAIN SWITCH ABNORMAL
(U.S.A. VERSION ONLY)
- Definition -
The main switch does not turn off within 0.45 second after sending reset signal.
- Points to check -
Main switch
Main board
SM
SERVICE CALL CONDITION
6-1 A251/A252