Epson LT - 286e - Manual (Page 20)

Interrupt Controller Test
This test performs read/write tests on the interrupt mask
registers and checks for invalid interrupts.
During the test, you see this message:
Testing Programmable Interrupt
Controller . . . .
When the test completes successfully, you see this message:
Programmable Interrupt Controller test
passed OK.
Timer Test
This test verifies the accuracy of the timer count by comparing
it to the periodic interrupt of the system’s real time clock
(RTC).
During the test, you see this message:
Testing Programmable Interval Timer.
When the test completes successfully, you see this message:
Programmable Interval Timer test
passed OK.
System Diagnostics 15