LG UN270 - Manual (Page 81)

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4.4 Tone Type
Allows you to set the tone type
that is used when touching items
on the screen.
1. Touch .
2. Touch
Settings
.
3. Touch
Touch Settings
and
Tone Type
.
4. Touch a setting.
Wood Block/ Percussion/
Clean/ Off
4.5 Calibration
Allows you to calibrate the
touchscreen to ensure it is
working properly.
1. Touch .
2. Touch
Settings
.
3. Touch
Touch Settings
and
Calibration
.
4. Touch the screen to start
calibration, then touch the
target each time it appears.