Publication 2711P-UM001B-EN-P
8-2 Troubleshooting and Maintenance
General Troubleshooting
This section provides a list of general troubleshooting steps to follow
when trying to isolate problems.
• Check for adequate power. An under-powered unit could
result in unpredictable behavior.
– The 400-600 DC powered terminals require 24V dc at 1.0 A
– The 400-600 AC powered terminals require 85…264V ac.
– The 700-1500 DC powered terminals require 24V dc at 1.5 A
– The AC Power Supply (2711P-RSACDIN) for 700-1500
terminals meets Class 2/SELV requirements.
• Check LED indicators on the terminal. Is power on? Is the
unit attempting to start? The red LED should be Off, except for a
few brief flashes, and the green LED should be On.
– If the LEDs remain Off on the 700-1500 terminals, the power
supply or Logic Module has failed. Check the power cable.
Replace the Logic Module if the power is within range; if not,
replace the power supply.
– If the LEDs remain off on the 400-600 terminals, check the
power cable.
If the terminal powers up and stops during startup, the state of
the LEDs indicate the following:
Blinking red LED indicates a recoverable error.
Solid red LED indicates a non-recoverable and fatal error.
Red LED Green LED Description
Blinking Off Last firmware download failed. Repeat
firmware download.
Blinking Blinking EBC boot loader firmware failed or is
missing. Load new EBC firmware
Blinking ON Windows CE OS firmware failed or is
missing. Load new CE OS firmware.
Red LED Green LED Description
On Off Fatal hardware error occurred. Replace
Logic Module (700-1500) or the terminal
(400-600).
On Blinking Fatal hardware error occurred in Display.
Replace the Display Module (700-1500) or
the terminal (400-600).
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