VIEWSONIC ViewBoard 55" UHD 4K Interactive Display - Manual (Page 25)

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Power amplifier / Stereo equipment
Optical Cable
SPDIF
To connect to an external sound system:
1. ŽŶŶĞĐƚĂŶŽƉƟĐĂůĐĂďůĞĨƌŽŵƚŚĞ SPDIF ƉŽƌƚƚŽLJŽƵƌƐŽƵŶĚƐLJƐƚĞŵ͛ƐŽƉƟĐĂů
connector.
2. Plug in the power cord of your ViewBoard, and turn on the rear-panel power
supply switch.
3. Press the Power button on the right-hand side of the ViewBoard to turn the
screen on.