Toshiba TECRA 9100 Series Maintenance Manual page 201

3.29 Sound Test Program
Subtest 03 Line in/out
When the Sound (Line in/out) test menu is displayed, press 3 to select the
test and press Enter. When you press Enter, the system records the sound
from the sound generating device connected to connector on the sound board.
After the recording is complete, press Enter to play the recorded sound
through the internal speaker.
If the sound is played properly, press Y.
Subtest 04 SPDIF
Connect an S/PDIF compatible external speaker to DS1100 on the sound
board.
Press 4 and press Enter to select the Sound (S/PDIF) test.
When you press Enter, the recorded sound is played through the S/PDIF
compatible speaker.
If the sound is played properly, press Y.
TECRA 9100 Maintenance Manual (960-347)
3 Tests and Diagnostics
3-91