Moeller 272557, Manual, Page: 39 / 51

Device Description
Touch-Panels for Industrial Automation DVI-Panel
Display, Backlight, Contrast
© 2005 by Moeller GmbH 02/05 AWB2720-1524GB 35
9 Display, Backlight, Contrast
9.1 C
ONTRAST
The DVI-Panels are delivered with TFT displays. This displays require no
contrast settings (only necessary for passive LCD displays).
9.2 B
ACKLIGHT
The backlight has two settings low (50%) and high (100%) which can be
selected via touch driver or within the EPAM visualization software.
10 Diagnostics
The following optical and acoustic diagnostic options are available:
Symptom Possible cause and solution
Signal on power on - Acoustic signal:
-
2x short
Touch controller OK
Device does not start,
screen dark or error
messages during startup - - Check power supply/fuse faulty
- check cable connection (Touch/PowerSupply and DVI-cable) from PC to DVI-Panel
( Section 5.3 and 5.4).
- check Diagnostic LEDs on DVI-Panel
( Section 5.8).
- check Display settings of the PCs (BIOS-Setup)
Screen dark or light Backlight/contrast incorrectly set
Touch-screen not
functioning - - Hardware faulty (no acoustic signal after power on)
- Too many IR channels interrupted
Clean touch-screen (infrared touch-screen
only)