3.System Maintenance
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The check is completed when all colors have been displayed. The screen returns to the top menu of [Self Check].
Speaker Check
Tests the speaker by playing the reference sound.
1. Select the frequency (220Hz, 440Hz, 880Hz, 1760Hz, or 2000Hz).
2. Press [START/STOP] to play the sound.
3. Touch the volume bar, and play the sound at minimum and maximum volumes.
4. Press [START/STOP] to stop the sound.
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