Panasonic TH-86CQE1W 86" Class 4K UHD Commercial Monitor - Manual (Page 54)

English - 53 -
Troubleshooting
Before you call for service, determine the symptoms and make a few simple checks as shown below.
Symptoms Check
Picture Sound
Electrical Appliances
Cars / Motorcycles
Fluorescent light
Interference Noise Sound
Normal Picture No Sound
Volume
(Check whether the mute function has been activated on the remote
control.)
Audio input MP3 terminal
(No sound will be output from the set speakers if connected.)
No Picture No Sound
Not plugged into AC outlet
Not switched on
Picture and Brightness / Volume setting
(Check by pressing the
)
Note: Standby ON / OFF can be switched by pressing the power
button on the remote control or pressing and holding the center of the
joystick in located on the rear left side of the Displa for a few seconds.
No Picture Normal Sound
If a signal with a non-applicable colour system format, or frequency is
input, only the input terminal indication is displayed.
No Colour Normal Sound
Colour controls set at minimum level
A Display error such a "no picture"
occurs, or remote control operation is
suddenly disabled.
This unit incorporates highly-advanced software. if you notice an
abnormal operation such as "remote control cannot be operated" or
"Display is disturbed", remove the power plug from the socket outlet,
and insert it again after 5 seconds or more to turn the power on.