Epson 486SX User Manual page 198

System diagnostics error messages (continued)
Error code
Math coprocessor (continued)
710
Parallel port (printer interface)
901
Serial port (RS-232C port)
1101
1101
1102
1103
Alternate serial port
Dot matrix printer
1401
Hard disk drive(s) and controller
1701
1702
1703
1704
1705
1706
Alternate parallel port
2101
Parallel port (on video adapter)
81nn
Message
Coprocessor precision error
Error pin p
control signal always low
control signal always high
Timeout error
Verify error
status
Seek error
Write error
Read error
Head error
Error detection error
Error correction error
Error pin
p
p
Error pin
Performing
System Diagnostics C-13