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7.2
Troubleshooting
The following information is presented for customers’ guidance in identifying problems with the GBA ST1C. It does not necessarily cover every
possible situation.
Problem Symptoms
Possible Cause
Investigate
Possible Solution
Unit does not work when power is
applied - belt motor does not run, status
LED is off, and illuminated bill guide is
off.
1. Power supply not switched on.
2. Power supply not connected.
3. Poor electrical connection(s).
4. Unit is in “Low Power” mode and is
waiting for a bill to be inserted
1. Power supply and power cable.
2. Diagnostics indicator or illuminated bill
guide.
3. Interface cable assemblies.
4. Insert a bill and check if the ST1C starts
up.
1. Ensure power to validator is connected
and turned on.
2. Ensure Interface cable is connected
firmly and correctly.
All programmed bills are rejected
1. Acceptance inhibited for all bills.
2. Optical Sensors damaged or dirty
3. “Ready To Punch” sensor not working.
1. Software configuration.
2. Remove Bottom Sensor Assembly and
inspect
1. Use on-board button or GBA Talk to
enable required bills.
2. Clean lenses in bill path. Then
recalibrate the validator.
Poor or no acceptance of one or more
programmed bills
1. Bill acceptance inhibited.
2. Poor sensor readings.
3. Insufficient power supply capacity.
1. Bill inhibit settings.
2. Bottom Sensor Assembly fitting.
3. Bill path cleanliness.
1. Use on-board button or GBA Talk to
enable required bills.
2. Use GBA Talk to check sensor levels and
re-calibrate if necessary.
3. Clean validator bill path.
Bills fail to stack correctly
1. “Ready To Punch” sensor not working.
2. Stacker motor not working.
3. Stacker mechanism not working.
1. Stacker motor cable connections.
2. Stacker jams.
3. Damaged / distorted bill in cassette.
1. Ensure all cables are connected
properly.
2. Ensure cassette is located correctly and
free from damage.
Unit does not communicate with host
machine
1. Incorrect interface selected.
2. Poor electrical connection(s).
1. Configuration of validator.
2. Interface cable assembly.
1. Use on-board button or GBA Talk to
select required interface.
2. Ensure Interface is connected firmly
and correctly.
Belt motor and/or stacker motor runs
continuously after power ON
1. Poor electrical connection(s)
1. Internal harnessing.
1. Ensure Interface cable is connected
firmly and correctly.
Unit does not provide credit for
accepted bill
1. Incorrect interface selected.
2. Poor electrical connection(s).
1. Configuration of validator.
2. Interface cable assembly.
1. Use on-board button with Program
Card or GBA Talk to select required
interface.
2. Ensure Interface cable is connected
firmly and correctly.
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