Epson 3865X/20 PLUS Benutzerhandbuch

A p p e n d i x   C

This appendix describes how to check the operation of the main
unit and peripheral devices of your computer. You check these
devices using the diagnostics program on your Reference
diskette.

Run the diagnostics program if you are not sure whether a device

is performing correctly. The table at the end of this appendix
lists the error messages you may see during testing.

You can test the following devices, each of which is identified by

specific reference numbers:

1

-

2

-

3

-

4

-

5

-

6

-

7

-

9

-

1 1   -
1 2   -
1 4   -

1 7   -

2 1   -

8 1   -

System board

Memory
Keyboard
Monochrome display adapter and CRT
Color graphics adapter and CRT

Diskette drives and controller

Math coprocessor

Parallel port (printer interface)
Serial port (RS-232C port)

Alternate serial port

Dot-matrix printer
Hard disk drives and controller

Alternate parallel port

Parallel port (on video adapter)

Performing System Diagnostics

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