Crestron electronic DTT-15V2 - Manual (Page 21)

DualTouch™ Technology Touchpanel Crestron DTT-15V2
Problem Solving
Troubleshooting
The following table provides corrective action for possible trouble situations. If
further assistance is required, please contact a Crestron customer service
representative.
DTT-15V2 Troubleshooting
TROUBLE POSSIBLE
CAUSE(S)
CORRECTIVE ACTION
The DTT-15V2 is not
receiving power. The
Power LED is off.
Verify cable connections and power to
unit.
DTT-15V2 does not
function.
The DTT-15V2 is
receiving power. The
Power LED is on.
Check contrast, brightness and back-
light controls. Refer to page 1 2 and 14.
Multiple images
displayed.
The video cable is
over-extended.
Use the video cable without extensions
or use a higher quality cable.
White color appears off-
white.
The colors are not set
up correctly.
Return to factory settings or adjust the
colors as necessary.
VGA display ripples or
shows a moiré pattern.
The pitch and/or
phase is misadjusted.
Adjust pitch and/or phase. Refer to
page 12.
The system may be in
power management
mode.
Touch the pen tip to the screen, move
the mouse connected to the UPX-2, or
press any key on the keyboard
connected to the UPX-2.
The message:
”NO SIGNAL
GO TO POWER SAVE”
is displayed.
The video cable
connection may be
loose or broken.
Check the video cable connection.
The message:
”CABLE DISCONNECT
GO TO POWER SAVE”
is displayed.
The video cable
connection may be
loose or broken.
Check the video cable connection.
Input signal frequency
is incorrect or not
compatible.
Vertical frequency refresh rate is a
value between 45 and 75 Hz (for XGA,
vertical refresh rate is 45 to 70 Hz.
The message:
”OUT OF RANGE”
is displayed.
The resolution is set
too high.
Set the resolution to a maximum of
1024 x 768.
The message:
”Please set the refresh
rate at 70Hz or less”
is displayed.
The refresh rate is set
too high for XGA.
Set the refresh rate for XGA to a value
between 45 and 70 Hz.
Operations Guide – DOC. 6342 DualTouch™ Technology Touchpanel: DTT-15V2 y 17