5-1
Chapter 5: Troubleshooting
5.1 Troubleshooting Symptoms
Note: Numbers in the ID column are for reference only.
ID Symptom Possible Cause(s) Action(s)
S1 User Interface Touch Screen
does not function.
Foreign substance on
Touch Screen surface
Turn off power. Clean and dry
Touch Screen per manual. Turn
on power.
Touch Controller flex cable
connection not fully seated
Disassemble Display Assembly
and check flex cable connector
at Touch Controller.
Touch Controller USB cable
connection not fully seated
Disassemble Display Assembly
and check Touch Controller
USB cable connector at Touch
Controller and SBC.
Defective Touch Controller Replace LCD/Touch assembly.
S2 No Alarm LED Indicators at
Power On
Disconnected LINCAN
Cable between SBC and
Alarm Board
Check for fully seated
connection at SBC and Alarm
Board.
Defective LINCAN Cable Remove/Replace LINCAN
Cable.
S3 Black Display
• No Alarm LED Indicators at
Power On
• High Priority Audio Alarm
active
Display Power cable
disconnected
Check for fully seated
connection at SBC and power
bus expansion cable.
Defective Display Power
cable
Replace cable.
S4 White Display or Distorted
Display image
LCD LVDS Cable not fully
seated
Disassemble Display Assembly
and check LVDS cable
connector at LCD and SBC.
Defective LCD LVDS cable Replace LCD/Touch assembly.
Defective LCD Replace LCD/Touch assembly.
Defective SBC Replace Board.
S5 Black or Dim Display LCD Backlight Cable not
fully seated
Disassemble Display Assembly
and check LCD backlight cable
connector at LCD and SBC.
Defective LCD Backlight
cable
Replace LCD/Touch assembly.
Defective LCD Replace LCD/Touch assembly.
Defective SBC Replace Board.