Parallel Port (On Video Adapter) Check; Exiting System Diagnostics; Error Codes And Messages - Epson Equity Ie Q50188015-1 User Manual

Parallel Port (on Video Adapter) Check

Use this option to test the functions of a parallel port on a video adapter
card. To perform the test you must insert a special loop-back connector into
the port so that the computer can check the port's individual pins.
This test is identical to the check for the primary parallel port. For more
details, see the section describing the parallel port check earlier. in this
chapter.

Exiting System Diagnostics

When you finish running the system diagnostics, press 0 and
return to the OPERATION MENU. Then press 0 and
computer. When the OPERATION MENU appears again, press 0 and
again, this time to return to MS-DOS. When the MS-DOS
Enter
command prompt reappears, remove the Reference diskette.

Error Codes and Messages

The table below lists all the error codes and messages that may appear
during diagnostic checks.
Error code
System board
101
103
104
105
105
108
109
111
113
Memory
201
Keyboard
301
302
D-22
Message
CPU ERROR
TIMER COUNTER REGISTER ERROR
TIMER COUNTER ERROR
DMA CONTROLLER REGISTER ERROR
DMA REFRESH ERROR
KEYBOARD SELF DIAGNOSTIC ERROR
INTERRUPT CONTROLLER ERROR
REAL TIME CLOCK ERROR
CPU INSTRUCTION ERROR
MEMORY/PARITY ERROR
KEYBOARD CONTROLLER SELF DIAGNOSTIC ERROR
KEYBOARD IS DEFECTIVE
Enter
Performing System Diagnostics
to
Enter
to reset the