GBA Global Bill Acceptors
GBA ST1C Operation Manual
Page 27 of 30
Astrosys International Ltd
GBA ST1C Operations manual V1_4
8.2 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 note 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 note to be inserted
1. Power supply and power cable.
2. Diagnostics indicator or illuminated
note guide.
3. Interface cable assemblies.
4. Insert a note 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 notes are rejected 1. Acceptance inhibited for all notes.
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 notes.
2. Clean lenses in note path. Then
recalibrate the validator.
Poor or no acceptance of one or more
programmed notes
1. Note acceptance inhibited.
2. Poor sensor readings.
3. Insufficient power supply capacity.
1. Note inhibit settings.
2. Bottom Sensor Assembly fitting.
3. Note path cleanliness.
1. Use on-board button or GBA Talk to
enable required notes.
2. Use GBA Talk to check sensor levels and
re-calibrate if necessary.
3. Clean validator note path.
Notes 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 note 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
note
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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