Toshiba M200-ST2002 Maintenance Manual - Page 149

3.17 Sound/LAN/Modem Test 3 Tests and Diagnostics Executed by the load format of Playwave/recwave. The sound is recorded automatically from microphone when the following message appears. Press any key to continue ... Subtest 02 Subtest 03 After a while, the recorded sound is replayed automatically. Microphoned recording & play Mic 3&4 This subtest is executed in the same way as Microphoned recording & play Mic 2&4. Sin wave This subtest is executed by loading the COM file (ADSIN.COM.) The program expands sin wave data table from 16KB to 64KB, and creates the play data. Then it transfers the data between the DMA and the CODEC to play the sin wave. (It sounds like a continuous beep.) By using wave measuring devices such as an oscilloscope, the data can be measured as a sin wave. When the subtest is executed, the following message appears. Press any key to continue.... When you press any key, the sin wave is expanded from 16KB to 64KB data and is played. The sound is heard and the test returns to the menu. Subtest 04 Subtest 05 LAN This subtest checks the operation of mini-PCI I/F by the loopback in the chip. The large "OK" is displayed if no error occurred. MODEM For this subtest, connect the modem PCB and RJ11 connector with a harness. This subtest contains the following tests. They are tested with the dedicated "FATMODE inspection device(Product Code QE2000P01 made by Nittou Denki Seisakusyo) • Scorpio Modem Initialize • Digital Loopback Test Portege M200 Maintenance Manual (960-457) 3-47