PEB-4720 Main Board
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controller, the touch panel may be not installed properly or it could be defective.
Second LCD Panel is Not Functioning Properly
A)
Check that the VGA driver 852GME is installed properly (Please refer to the VGA driver
installation section).
B)
Connect a VGA CRT monitor to the VGA2 connector, if there is a display, then the
second LCD panel could be defective or is not installed properly.
B-1) Please check that both the VGA signal cable and second LCD power cable are
connected properly (Shut the power off before connecting the 2 above mentioned
cables).
B-2) Check that the VGA cable is connected to A/D board. Or it could be defective.
B-3) Check that the LCD signal cable is properly connected to A/D board and LCD
panel. Or it could be defective.
Please re-connect both ends of the LCD signal cable in the correct location. Or
replace with a new cable.
B-4) There will be no backlight if the is inverter is defective.
C)
Check that the 10 PIN VGA cable is connected to mainboard J10 and 9000PB0710
secondary I/O board CN4 properly.
D)
The mainboard VGA chip could be defective.
E)
The 9000PB0710 secondary I/O board could be defective.
F) If there is no power supply from the 9000PB0710 secondary I/O board, then check if the
power cable is properly connected between position CN8 of 9000PB0710 and position
CON12 of 9000PB0700. If there is still no power then the fuse “F3” on the 9000PB0710
could be defective.
Second Touch Screen is Not Functioning Properly
A)
Check CMOS settings, COM4 needs to be “Enabled”. The correct settings are “2E8h”
and “IRQ11”.
B)
Check that there are no conflicts between COM4 IRQ11 and any other devices.
C) Check that the ELO driver has been properly installed. Or try to re-install again (Please
refer to the ELO driver installation).
D) Check that the ELO controller on COM4 has been detected during the ELO driver
installation. If yes, then check that the flat cable from the ELO touch screen has been properly
connected to the ELO controller.
(Attention: Pin1 mark should be on the same side as the ELO controller).
E)
Check that the ELO controller Green LED is blinking.
If no, there is no DC+5V support for the ELO controller from the mainboard.
E-1)
Check the 9000PB0270 secondary I/O board JP1 and JP2 jumper settings. The
correct jumper settings for the 2
nd
Touch screen are:
JP1 PINs 2-3 shorted.
JP2 PINs 1-3, PINs 2-4 shorted.
E-2)
Check that the RJ45 cable from the 2
nd
Touch panel is connected properly to the
COM4/VFD port.
