NEC E657Q User Manual page 29

7. RS-232C – Connect to your PC, and receive the control commands from
the PC.
8. LAN port (RJ-45) – LAN connection.
9. USB2 port – Power supply port 5V/2A (maximum)
Please make sure the connector shape and orientation is correctly
aligned when connecting the USB device or cable. When you use the
USB (2A) port for power supply, please use a USB cable that supports
2A.
Do not bind the USB cable. It may cause heat or fire.
10. Headphone – Connect to your headphones.
E557Q / E507Q / E437Q / E327
AC POWER
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VGA – Connect to your PC video.
1.
2. USB1 port – Used for accessing photo, music, and movie files.
Please make sure the connector shape and orientation is correctly
aligned when connecting the USB device or cable.
3. HDMI (HDMI-1, HDMI-2, HDMI-3) – Connect to your HDMI devices.
HDMI-1 terminal can support ARC (Audio Return Channel) function.
ARC output does not work sound effect (Sound mode, Balance, Bass,
Treble on OSD).
4. SPDIF OUT- Use a digital audio cable to connect to stereo home
theater system. SPDIF output does not work sound effect (Sound mode,
Balance, Bass, Treble on OSD). SPDIF output does not work Auto
function of Internal Speakers on OSD.
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