Toshiba M200-ST2002 Maintenance Manual - Page 131

3.12 Real Timer Test 3 Tests and Diagnostics 3.12 Real Timer Test To execute the Real Timer Test, select 9-REAL TIMER TEST from the DIAGNOSTIC TEST MENU, press Enter and follow the directions on the screen. The real timer test contains three subtests. Move the highlight bar to the subtest you want to execute and press Enter. Subtest 01 Real time This subtest displays and changes the current date and time stored in the real time clock. To execute the real time subtest follow these steps: Step 1: Select 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 Step 2: If the current date is not correct, input the correct date and press Enter. The date is updated and the following prompt will appear: Enter new time : Step 3: If the current time is not correct, input the correct time in 24-hour format. The time is updated and the following message appears. The date and time switches by pressing Enter. To exit this subtest, press Enter during "Enter new time : " display. Subtest 02 Backup memory This subtest checks the following backup memories: Writes 1-bit of "on" data (01h through 80h) to address 0Eh through 7Fh Writes 1-bit of "off" data (FEh through 7Fh) to address 0Eh through 7Fh Writes the data pattern AAh and 55h to the address 0Eh to 7Fh Then the subtest reads and compares this data with the original data. Portege M200 Maintenance Manual (960-457) 3-31