Toshiba TECRA A11 Series Maintenance Manual page 279

Tests and Diagnostics
3.35.6.7 Real timer test
1) Real time
This subtest sets and displays the calendar or clock function.
2) Backup memory
This subtest writes the data for 1bit ON (01, 02, 04...80h) and 1bit OFF (FE, FB, FB...7Fh)
and AAh, 55h to 114 bytes of addresses from 0E to 7Fh, reads the written data and compares
the result with the original data.
3) Real time carry
Set the constant value as below and check carry of the timer.
Month Date Year
12 - 31 - 2008
3-170 [CONFIDENTIAL] TECRA A11/S11/P11/Satellite Pro S500 Series Maintenance Manual (960-784)
Hour Min. Sec.
23 : 59 : 58