Toshiba M1 manual Real Timer Test Tests and Diagnostics

3.12 Real Timer Test 3 Tests and Diagnostics

3.12Real Timer Test

To execute the Real Timer Test, select 9 from the DIAGNOSTIC TEST MENU, press Enter and follow the directions on the screen. The real timer test contains three Subtests that test the computer’s real timer functions. Move the highlight bar to the Subtest you want to execute and

press Enter.
Subtest 01	Real Time
	A new date and time can be input during this Subtest. To execute the real time
	subtest follow these steps:
	1. Select the subtest 01 and the following message will appear:
	Current date : XX-XX-XXXX
	Current time : XX:XX:XX
	Enter new date:
	PRESS [ENTER] KEY TO EXIT TEST
	2. If the current date is not correct, input the correct date at the “Enter new date”
	prompt and press Enter. To enter “:”, press Shift + ;. The date is updated
	and the following prompt will appear:
	Enter new time :
	3. If the current time is not correct, input the correct time in 24-hour format and
	press Enter. The time is updated.
Subtest 02	Backup Memory
	This Subtest performs the following backup memory check:

Writes 1-bit of “on” data to address 01h through 80h Writes 1-bit of “off” data to address 0Eh through 80h

Writes the data pattern AAh and 55h to the RTC 114-byte memory (address 0Eh to 7Fh)

The Subtest reads and compares this data with the original data.

To exit, press Ctrl + Break.

TECRA M1 Maintenance Manual (960-436) 3-33