NEC MultiSync CB651Q User Manual page 70

No Sound
• Check to see if the audio cable is properly connected.
• Check to see if MUTE is activated. Use the remote control
to enable or disable the Mute function.
• Check to see if VOLUME is set to a minimum.
• Check to see if the computer supports an audio signal
through HDMI.
If unsure, contact your supplier.
• When LINE OUT is not functioning, check to see if
SURROUND is ON.
The Remote Control is not functioning
• Check the batteries status of the Remote Control.
• Check if the batteries are inserted correctly.
• Check if the Remote Control is pointing at the remote
control sensor of the monitor.
• The remote control system may not function when direct
sunlight or strong illumination strikes the remote control
sensor of the monitor, or when there is an object in the
path.
The Timer Switch function is not working properly
• The "Timer Switch" function will be disabled when the
"OFF TIME" is set.
• If the "OFF TIME" function is enabled and the power to
the LCD monitor is turned off when the power supply is
interrupted unexpectedly, then the "OFF TIME" will be
reset.
Either light vertical or horizontal stripes may appear, depending on the specific image pattern. This is not a product fault or degradation.
Interference in TV
• Check components for shielding, move away from
monitor if necessary.
RS-232C or LAN control is not available
• Check RS-232C (reverse type) or the LAN cable.
A category 5 or higher LAN cable is required for
connection.
Media Player function does not recognize the USB
storage device
• Please check a USB storage device is connected to the
USB.
The monitor goes into standby automatically
• Please check "OFF TIME "setting.
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