The program continues after an error in one of the following ways:

It returns to the DEVICE LIST, or

If you are running multiple tests and are not terminating on an error, the program repeats the test that caused the error.

The remainder of this chapter describes the tests you can run on the system’s internal devices and on the optional devices installed on your com- puter. The program displays the titIe of each check on the screen.

For a complete list of the error codes and messages these tests may dis- play, refer to Appendix A.

System Board Check

Use this option to check the operation of each major component on the system board, including:

The 80286 CPU chip

The system ROM

The real-time clock, CMOS RAM, and battery

The main integrated circuits.

The checks made on the 80286 CPU chip are extremely comprehensive and ensure that the CPU instruction set, including protected-mode operation, is functioning correctly.

If an error occurs, make a copy or a printout of the error code and message, and contact your dealer or Epson for customer service. Attempting to correct system board errors yourself may violate your warranty agree- ment.

Memory Check

Use this option to check the memory installed in your computer, including expansion memory. The program checks the internal jumpers to determine the amount of main memory, and reads the CMOS RAM to find the amount of expansion memory If any settings are incorrect, use Setup to define the correct amount in CMOS RAM and adjust the jumpers on the system memory card.

4-6

Diagnostics