Epson EQUITY 3865X/20 PLUS - Manual (Page 230)

Error Codes and Messages
The following table lists all the error codes and messages that
may appear during system diagnostics testing.
system diagnostics error codes and messages
Error code Message
System board
101
CPU ERROR
102
ROM CHECKSUM ERROR
103 TIMER COUNTER REGISTER ERROR
104
TIMER COUNTER ERROR
105 DMA CONTROLLER REGISTER ERROR
105 REFRESH ERROR
106
DMA PAGE REGISTER ERROR
107
KEYBOARD CONTROLLER TIMEOUT ERROR
108 KEYBOARD CONTROLLER SELF DIAGNOSTIC
ERROR
108 KEYBOARD CONTROLLER WRITE COMMAND
ERROR
109 INTERRUPT CONTROLLER ERROR
110 CMOS SHUTDOWN BYTE ERROR
111 CMOS BATTERY ERROR
112
CMOS CHECKSUM ERROR
113 CPU INSTRUCTION ERROR
114
PROTECT MODE ERROR
1
115
PROTECT MODE ERROR 2
Memory
201
MEMORY ERROR
Keyboard
301 8042 ERROR
301 KEYBOARD ERROR
302 KEYBOARD IS NON-STANDARD, OR KEYBOARD
IS DEFECTIVE
C-12 Performing System Diagnostics