Toshiba A10 manual Sound/LAN/Modem Test Tests and Diagnostics

3.17 Sound/LAN/Modem Test			3 Tests and Diagnostics
Subtest 01 Microphoned recording & play
	This subtest checks the function of the CODEC A/D D/A converter. Both the
	microphone and headphone terminals can be checked at the same time.
	Before executing this subtest, connect an external microphone to the
	computer. If necessary, connect a headphone to the computer to check
	whether the headphone jack of the computer is working properly.
	When the subtest is selected, the following message appears.
	....Press test number[1-4] ? pause
	Press any key to continue...
	Press any key, and the following message appear.
	Record from source name is MIC
	Requested Sampling Rate is 22025 Hz
	Volume requested is 0,000dB
	Record to buffer is BUFFER0
	Record Time requested is 5.000 seconds
	Actual record time will be 5.000
	When the above message is displayed, the screen is fixed for a while. Then
	record the sound with the microphone.
	When the following message appears, make sure the recorded sound is
	replayed.
	Play to destination is LINEOUT
	Volume requested is 0,000dB
	Play from buffer name is BUFFER0
	Requested play time is 5.000 seconds
	Actual play	time will be 5.000
	Completing	SoundMAX/ICH play buffer0 to line out
	End time	XXX XXX XX XX:XX:XX XXXX
	System Status 0X0
	Test completed at XXX XXX XX XX:XX:XX		XXXX
	System completion code was 0X0
Subtest 02	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 paly the sine wave. (It sounds like a continuous beep). By using wave measuring devices such as an oscilloscope, the data can be measured as a sine wave.

Satellite A10/TECRA A10/Satellite Pro A10 Maintenance Manual (960-445) 3-39