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 appendix.

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 loopback 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 details, see the section describing the parallel port check earlier in this appendix.

Exiting System Diagnostics

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

D-28 Performing System Diagnostics