No Response For Touching - Sharp PN-T322B Service Manual

CHAPTER 8. TROUBLESHOOTING

7. NO RESPONSE FOR TOUCHING

Is the USB cable connected properly?
Yes
Is it connected to the USB port of the PC
or to a self-powered USB hub?
Yes
Are the drivers installed? (Check to confirm
that "NextWindow 2500 Drivers" are installed
on the program and function menu of the
control panel.)
Yes
Is the OS Windows7?
No
Is "NextWindow Low Rider Touch Screen"
displayed in "Human Interface Devices"
of the device manager?
No
(Open the back cabinet.)
Are the control PWB, the USB cable, and
the FFC cable properly connected?
Yes
Any problem with the USB cable?
Replace the touch panel (protection glass
with the camera, control PWB).
MEMO
When the main unit is pressed strongly or a considerable pressure is applied to the sensor section, the sensor correction process is performed.
n
During this process (for several tens of seconds), the touch panel does not respond to any operation.
No
Connect the USB cable properly.
No
Connect it to the USB port of the PC or to
a self-powered USB hub.
No
Install the drivers.
Yes
Check the "Pen and Touch" on the control
panel Is "Finger is used as an input device."
in the touch tab checked?
No
Put a check mark.
Is "Touch enable" in the "User Touch
Environment Setting" of "RSCU" checked?
No
Put a check mark.
Yes
Refer to page 8 - 5
" 8. THE TOUCH POSITION IS SHIFTED".
No
Connect the USB cable and the FFC cable
properly.
No
Replace the USB cable.
PN-T321/T322B TROUBLESHOOTING
8 – 4
Yes
Yes