Toshiba Tecra A2-S239 Maintenance Manual - Page 119

3.5 System Test 3 Tests and Diagnostics 3.5 System Test To execute the System Test, select 1 from the DIAGNOSTIC TEST MENU, press Enter and follow the directions on the screen. Move the highlight bar to the subtest you want to execute and press Enter. Subtest 01 ROM Checksum This subtest executes a checksum test of the BIOS ROM (range: F0000h to FFFFFh) on the System Board. Subtest 02 Dock/UnDock NOTE: Attach Port Replicator III before the start of this test. When this subtest displays message shown below, slide the corresponding switch and press Enter. Slide Eject-SW, and press [Enter] key Following message appears in the display, then press Enter without pressing eject button. Release Eject-SW, and press [Enter] key When the subtest end normally, return to SYSTEM test menu automatically. After the display returns to the SYSTEM test menu, undock the computer from the Port Replicator III. Subtest 04 Fan On/Off This subtest turns on/off the fan motor by force with Fan ON/OFF commands. The following message will appear. Make sure the fan does not rotate and press Enter. *** Test Fan Revolution 0000RPM Start The following message will appear. Make sure the fan rotates at low speed and press Enter. *** Test Fan Revolution Low speed Start The following message will appear. Make sure the fan rotates at high speed and press Enter. *** Test Fan Revolution High speed Start Satellite A50/TECRA A2 Maintenance Manual (960-478) 3-11