Epson 386/25 Device, Description, Tests available, E-10Performing System Diagnostics, System diagnostics tests (continued)

System diagnostics tests (continued)

Device	Tests available	Description
Color graphics	Adapter check	Tests all types
adapter and CRT	Attribute check	of color monitors
	Character set check
	Graphics mode check
	Screen paging check
	Light pen check
	Video check
	Sync check
	Run all above checks
Diskette drive(s)	Sequential seek check	Tests operation
and controller	Random seek check	of the diskette
	Write, read check	drive(s); requires
	Disk change check	a formatted
	Run all above checks	diskette for some
		tests
Math		Tests the
coprocessor		operation of the
		math coprocessor
Parallel port (printer		Tests the primary
interface)		parallel port;
		requires a loop-
		back connector
		(contact your
		dealer)
Serial port		Tests the primary
(RS-232C)		serial port;
		requires a loop-
		back connector
		(contact your
		dealer)
Alternate		Tests the
serial port		secondary serial
		port; similar to
		primary serial port
		test

E-10 Performing System Diagnostics