Epson Aculaser C9200N - Page 128

EPSON AcuLaser C9200N Revision D
Troubleshooting Service Call Error 128
Confidential
E900: FLASH ROM WRITE ERROR
E901: RTC FAILURE
E998: ENGINE COMMUNICATION ERROR
Relevant Electrical Parts
Mechanical Control Board (PWB-M)
Step Action
Connection Diagram
Control Signal
Location
(electrical parts)
1 Change PWB-M. (p.198) --- ---
2 Contact the service support section
counter since the error is beyond
restoration in the field.
--- ---
Relevant Electrical Parts
 RTC Board (PWB-R)  Mechanical Control Board (PWB-M)
Step Action
Connection Diagram
Control Signal
Location
(electrical parts)
1 Check the connector for proper
connection and correct as
necessary.
--- ---
2 Change PWB-R (p.198) --- ---
3 Change PWB-M (p.198) --- ---
Relevant Electrical Parts
 Controller Board (PWB-P)  Mechanical Control Board (PWB-M)
Step Action
Connection Diagram
Control Signal
Location
(electrical parts)
1 Check the PWB-P connector for
proper connection and correct as
necessary.
--- ---
2 Check the PWB-M connector for
proper connection and correct as
necessary.
3 Change PWB-P (p.198) --- ---
4 Change PWB-M (p.198) --- ---