Troubleshooting - Sharp PN-LC862 Operation Manual

If you are experiencing any problem with your display, before
calling for service, please review the following troubleshooting
tips.
There is no picture or sound.
• The power LED is off.
- Is power supplied to this monitor?
- Is the power cord disconnected? (See page 14.)
- Is the main power switch off? (See page 17.)
• The power LED lights or flashes (2 seconds interval)
orange.
- This monitor is in standby state. Turn on the power. (See
page 17.)
• The power LED flashes orange (1 second interval).
- There is no input signal.
- Is an input mode selected that is appropriate for the input
terminal to which the cable is connected? (See page 23.)
- If any external equipment is connected, make sure the
equipment is operating (playing back).
Remote control does not work.
• Are the batteries inserted with polarity (+,-) aligned? (See
page 15.)
• Are the batteries exhausted?
• Point the remote control unit toward the monitor's remote
control sensor. (See page 15.)
• Is operation disabled? (See page 53.)
The remote control unit's buttons for operating the
HDMI-connected device do not work.
• When the input mode is APPLICATION, these buttons
operate the application in APPLICATION mode.
• Is "HDMI CEC link" set to on of "CEC settings" on the Input
menu?
• Switch to a different input mode, and then try switching the
input mode back to "HDMI".
Sound from left and right speakers is reversed.
Sound is heard from only one side.
• Are audio cables connected properly?
• Check the setting of "Balance" of "Audio" on the General
menu. (See page 48.)
There is a picture but no sound.
• Is the sound muted?
• Make sure the volume is not set to minimum.
• Are audio cables connected properly?
• Is the setting of "Audio output" of "Audio" on the General
menu correct?
Unstable video.
• The signal may be incompatible.
• Try the automatic screen adjustment when "D-SUB" is in use.
54
E

Troubleshooting

The video from the HDMI input terminal does not appear
properly.
• Does the HDMI cable support 4K, and is it HDMI standard
• Is the input signal compatible with this monitor? (See pages
• If the connected device does not support 4K, set "HDMI
The video from the DisplayPort does not appear properly.
• Does the DisplayPort cable support 4K, and is it
• Is the input signal compatible with this monitor? (See pages
The video from D-Sub input terminal does not appear
correctly.
• Is the input signal compatible with this monitor? (See page
The video from the USB Type-C does not appear properly.
• Is the input signal compatible with this monitor? (See pages
Control buttons do not work.
There is no picture.
• Load noises from outside may be interfering with normal
The input mode changes automatically.
• When "Connect auto input select" is set to on, the input
The touch panel does not respond.
• Is the USB cable connected properly?
• Have you disabled touch control? (See pages 24 and 53.)
compliant? The monitor will not work with cables that are
not standard compliant.
58 and 59.)
modes" to "Mode2".
DisplayPort standard compliant? The monitor will not work
with cables that are not standard compliant.
58 and 59.)
58.)
58 and 59.)
operation. Turn off the main power and turn it on after
waiting at least 5 seconds, and then check the operation.
mode automatically changes to that terminal when a video
signal is input into the input terminal.
For this reason, the input mode may change when the
computer wakes up from system standby.