PN-K322BH (serv.man6) - Sharp Monitor User Guide / Operation Manual. Page 30

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30
E
Troubleshooting
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.
•  Are the AC adapter and power cord properly connected? 
(See page 13.)
•   Is the main power switch off? (See page 15.)
•   Is the monitor in standby mode (power lamp is off)? (See 
page 15.)
•   If any external equipment is connected, make sure the 
equipment is operating (playing back).
Sound from left and right speakers is reversed.
Sound is heard from only one side.
•  Are audio cables connected properly? (See page 12.)
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 SELECT on the SETUP menu 
correct? (See page 23.)
•  Is the headphone (etc.) cable connected to the headphone 
terminal?
The sound crackles.
•  Turn down the volume.
  With some input devices, the sound may crackle at high 
volume.
Unstable video.
•  The signal may be incompatible.
The video from DisplayPort input terminal does not 
appear properly.
•  Is the cable a certified DisplayPort cable? Use the supplied 
cable. The monitor will not work unless a standards-compliant 
cable is used.
•  Is the input signal compatible with this monitor? (See page 
34.)
The video does not appear properly even after the 
DisplayPort STREAM setting is changed.
•  Try restarting the monitor and computer.
•  Is the video card MST (Multi Stream) compatible? If not, set 
to SST (Single Stream).
The touch panel does not respond.
•  Is the USB cable connected properly? (See page 12.)
•  The touch panel may not work properly if the contact area 
is too large. (e.g. if the screen is touched with the palm of 
your hand.) Try to only contact the touch screen with the 
supplied pen or your fingertip.
•  Is the monitor in pen-only mode? Touch action is disabled 
in pen-only mode. (See page 18.)
•  Is the monitor in finger-only mode? You cannot touch the screen 
with the touch pen when in finger-only mode. (See page 18.)
•  When there is no signal input to the LCD monitor, actions 
on the touch panel are not possible. Please operate the PC 
using the mouse and keyboard.
•  If you are using Windows XP or Windows Vista, did you install 
the touch panel driver? (Touch Panel Driver Operation Manual)
•  When screen motion is enabled, touch operation is not 
possible. In this case, turn the function off.
•  When the computer is in sleep mode, wake-up by touch 
operation may not be possible. 
To enable wake-up by touch operation, settings must be 
configured on the computer. For information on configuring 
the settings, consult your dealer.
•  Are you trying to operate at a place on the screen that has 
been continuously touched? 
In that case, remove your hand or touch pen from the 
screen, and then try again.
The response of the touch screen is slow.
Some parts of the screen do not respond.
•  When starting your computer or connecting the USB cable, 
do not touch the touch panel.
•  When starting the LCD monitor, do not touch the screen. 
If the screen is touched, the monitor may not function 
correctly. In this situation, turn off the LCD monitor power, 
wait 5 seconds or longer, and then turn the power on again.
•  While the touch mode icon is displayed, only touch actions 
for the icon can be performed. To perform other actions, 
first close the icon display.
•  There may be no response if the supplied touch pen is 
gripped in such a way that the tip is located near your palm. 
In this situation, grip the pen so the tip is further extended 
from the base of your hand.
Control buttons do not work.
There is no picture.
•  Load noises from outside may be interfering with normal 
operation. Turn off the power and turn it on after waiting at 
least 5 seconds, and then check the operation.
•  When you display the screen or clear the screen, the left 
and right screen display timing may be slightly off; however, 
this is not a problem.
Power LED flashes red.
“STATUS [xxxx]” appears in the corner of the screen.
•   Hardware has a problem. Turn off the monitor and request 
repair from your SHARP dealer. 
(When STATUS ALERT is set to OSD & LED. This varies 
depending on the setting.)
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