Toshiba Satellite A40 Maintenance Manual - Page 142

3 Tests and Diagnostics 3.6 Keyboard Test Subtest 05 Subtest 06 Subtest 07 USB (Port 0, Port1) test This subtest checks USB. The USB TEST Module (ZD0003P01) and USB Cable (ZD0003P02) must be connected to the computer. The following message will appear. Select a port to test and press Enter. Test port number select (1:Port0, 2:Port1, 0:Port0&1) ? If the test ends successfully, OK is displayed. If there is a problem with the USB port, an error message appears. Check the wraparound connection and repeat the test. USB (Port 2, Port3) test This subtest checks USB. The USB TEST Module (ZD0003P01) and USB Cable (ZD0003P02) must be connected to the computer. The following message will appear. Select a port to test and press Enter. Test port number select (1:Port2, 2:Port3, 0:Port2&3) ? If the test ends successfully, OK is displayed. If there is a problem with the USB port, an error message appears. Check the wraparound connection and repeat the test. CD function key test This subtest checks the [Play/Pause], [Stop], [rewind] and [forward] button. 1. The following message is displayed. Press Play/Pause button. Press [play/pause] Button 2. The following message is displayed. Press Stop button. Press [stop] Button 3. The following message is displayed. Press Rewind button. Press [rewind] Button 4. The following message is displayed. Press Forward button. Press [forward] Button 3-18 Satellite A40 Maintenance Manual (960-458)