Error Codes And Messages - Epson 20 User Manual

Error Codes and Messages

The following table lists all the error codes and messages that may
appear during diagnostics checks.
Error codes and messages
Error code
System board
101
102
103
104
105
105
106
107
108
108
109
110
111
112
113
114
115
Memory
201
Keyboard
301
301
302
303
Monochrome display adapter and CRT
401
402
403
404
C-30 Performing System Diagnostics
Message
80386 CPU ERROR
27256 ROM CHECKSUM ERROR
8254 TIMER COUNTER REGISTER ERROR
8254 TIMER COUNTER ERROR
8237 DMA CONTROLLER REGISTER ERROR
8237 DMA REFRESH ERROR
8237 DMA PAGE REGISTER ERROR
8042 TIMEOUT ERROR
8042 SELF DIAGNOSTIC ERROR
8042 WRITE COMMAND ERROR
8259 INTERRUPT CONTROLLER ERROR
146818 CMOS SHUTDOWN BYTE ERROR
146818 CMOS BATTERY ERROR
146818 CMOS CHECKSUM ERROR
80386 INSTRUCTION ERROR
80386 PROTECT MODE ERROR 1
80386 PROTECT MODE ERROR 2
MEMORY/PARITY ERROR
8042 ERROR
KEYBOARD ERROR
KEYBOARD IS NON-STANDARD, OR
KEYBOARD IS DEFECTIVE
KEYBOARD LOCKING ERROR
V-RAM ERROR
VIDEO SIGNAL ERROR
ATTRIBUTE ERROR
CHARACTER SET ERROR