Epson 486SX User Manual page 196

System diagnostics error messages (continued)
Error code
System board (continued)
107
108
108
109
110
111
112
113
114
115
Memory
201
Keyboard
301
302
Monochrome display adapter and CRT
401
402
403
404
406
408
409
410
411
Message
Keyboard controller timeout error
Keyboard controller self diagnostic error
Keyboard controller write command error
Interrupt controller error
CMOS shutdown byte error
CMOS battery error
CMOS checksum error
CPU instruction error
Protect mode error 1
Protect mode error 2
Memory parity error
Keyboard controller error, keyboard error
Keyboard is non-standard, or keyboard is
defective
Error in adapter check
Video signal error
Error in character set check
Error in graphics mode check
Error in screen paging check
Error in light pen check
Error in video check
Error in sync check
Performing System Diagnostics
C-11