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Chapter 4
Problem Isolation
In the event of a suspected functional problem, use the troubleshooting references provided in this section. This useful information will help you identify and resolve the cause of the problem.
The scanner incorporates features that indicate when a problem occurs.
The scanner may:
• emit a series of tones
• flash the LED (lamp)
Three error reporting modes are used: Power-Up Selftest, Operational tests and Diagnostic tests. These test sequences are explained on the following pages.
Power-Up Selftest
The Power-up Selftest is a pre-operational series of tests that must be successfully completed before the scanner indicates readiness for operation.
This pre-operational period is the time between power-up and normal operation during which the motor comes up-to-speed and software, firmware and hardware are being tested. These tests ensure that all subsystems are fully functional before turning on the Visible Laser Diode (VLD).
Refer to Chapter 3, Operational Modes , for a more detailed description
of this and other scanner modes.
Operational Tests
These are the tests that run continually during Normal Operation and
Sleep Mode. Firmware checks all subsystems, accessory connections as well as the POS interface to verify everything is operating normally. If a problem is detected at any time, a long, low tone is sounded and operation may be halted. If you press the Volume/Tone Push Button at that time, a series of tones will be sounded in concert with LED flashes.
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Problem Isolation
Diagnostic Tests
See Chapter 3, Scanner Diagnostic Mode
for details about running diagnostic tests for the scanner. If a problem is discovered during diagnostics, the scanner will provide feedback about the source of the problem. The remainder of this section describes these failure indications and includes troubleshooting flowcharts to help isolate the problem.
Diagnostic Procedures
Your Point-Of-Sale (POS) system may contain many components that operate as a system. Since almost all scanner problems are caused by either the scanner, POS terminal or communication links between them, troubleshooting flowcharts provided in this chapter focus on these components. Additionally, the AC/DC Power Supply and scanner cables are potential problems addressed.
The flowcharts provided here walk you through a diagnostic process that will isolate the failed component and instruct as to the corrective action required. Since internal scanner components cannot be replaced by an operator or installer, most functional errors will require the assistance of a trained technical support person. However, if the problem is caused by faulty cable, or power supply, you can fix the problem by replacing the defective component and complete the installation.
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2200VS/2200VS and 2300HS/2300HS
Error Codes
Error Codes
If an error is detected, the scanner will sound a long low tone (for three seconds) and flash its LED, indicating a failure. When this occurs, press the Volume/Tone Push button to hear the error code. If it is configured to do so, the scanner will sound a series of beeps corresponding to the error code and/or flash its LED simultaneous to the beeps. The table below describes what these codes mean and what action should be taken for each.
When troubleshooting, always remember to check all cable connections first before proceeding with other problem isolation steps.
1
10
11
14
4
6
2
3
Error
Beep
Probable Cause
Beeper
“Chirp”
Configuration
Configuration Error
Interface Board
Motor
Laser
Digital Board
Button Module
Hardware ID
CPLD ID
Corrective Action
No POS interface has been selected (Null interface). See Chapter 5,
to select the required interface using programming bar codes.
See Chapter 5 for details about configuring the scanner using pro-
gramming bar codes.
Unplug unit and call technical support personnel.
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Problem Isolation
Flowcharts
The problem isolation flowcharts on the following pages allow you to identify and troubleshoot problems with your system.
Figure 4-1. Problem Isolation: Start
START
For units using an AC/DC adapter, verify that...
1. AC Adapter is connected to a functional AC outlet.
2. Power cord is firmly connected to scanner.
If your unit is a model which receives Power Off the
Terminal POT), verify that the I/F cable is securely connected at both ends.
AC
Adapter
Scanner
Power-up
Scanner power-up is signified by any or all of the following:
- Facet wheel shows movement
- Laser turns on
- Status LED lights
- Speaker sounds tone(s)
Flashing Green LED
If the Green LED is flashing slowly, the scanner is most likely in Sleep Mode.
Press and release the Volume/Tone
Push Button or wave your hand in front of the vertical window to "wake-up" the scanner.
A flashing Green LED can also mean the scanner has been disabled by the
POS terminal. To exit this mode, cycle power or have the terminal re-enable the scanner.
Selftest Failure
If the scanner fails its Selftest, the following takes place:
- Speaker sounds a tone at the lowest value for approx. 3 seconds.
- LED flashes on and off.
Consult the Selftest flowchart if you're unsure the unit has passed Selftest.
Does the scanner power-up
?
YES
NO
NO
Have you checked the power connections
?
YES
Is the
Green LED
Lit
?
YES
NO Ensure the Green LED is enabled via programming bar codes.
Check these potential problems:
- AC/DC adaptor
- AC outlet
Is the
Green LED
Lit
?
YES
NO
Does the scanner pass Selftest
?
NO
Go to Selftest flowchart
YES
Call Tech Support
Other Problems?
Call Tech Support
YES Will the scanner read bar codes reliably
?
NO
Go to Poor/No
Reading flowchart
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2200VS/2200VS and 2300HS/2300HS
Figure 4-2. Problem Isolation: Selftest
SELFTEST
START
Is the
LED blinking in error
?
NO
YES
No interface selected
(Null Interface).
Select an interface.
Is the error code
1
?
NO
Error
Beeps
?
YES
Scan the Factory
Defaults bar code in
Section 6 to enable the default configuration file. Restart the unit.
YES
NO
Unit passes Selftest
Call Tech Support
Is the error code
1
?
NO
YES
Flowcharts
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Problem Isolation
Figure 4-3. Problem Isolation: Poor/No Reading
Have you verified that the scan window(s) is/are clean and scratch-free?
POOR/NO READING
START
A good read is signified by one flash of the LED and a single beep 1 .
Enter Scanner Diagnostic Mode by holding the Volume/Tone Push
Button for 4 seconds (until first 3, and then 6 rapid tones are sounded) then release. Scan a known-good bar code.
NO
Does the scanner read the bar code satisfactorily
?
YES
Reset the scanner by holding down the
Volume/Tone Push Button for 8 seconds.
Before proceeding, verify that bar code samples presented to scanner are of good quality and a symbology the scanner can read.
Call Tech Support
If unexpected data is being sent from the host to the scanner, consider enabling the programmable feature Ignore Host
Commands to debug the system.
Does the scanner pass the data to the POS
?
NO
YES
Go to No Transmit to
POS flowchart
Does the scanner read satisfactorily
?
NO
YES
Verify programmable parameters using the information and programming bar codes provided in Section
5. Check bar code symbology options and other configurable features.
DONE
Does the scanner read satisfactorily
?
NO
YES
Troubleshoot the host or call
Tech Support.
DONE
1
LED and beeper indications are configurable
features. Behavior may vary from that described here.
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2200VS/2200VS and 2300HS/2300HS
Figure 4-4. Problem Isolation: No Transmit to POS
Flowcharts
NO TRANSMIT TO POS
START
Check the interface (I/F) cable connections. If possible, retest the system using a knowngood I/F cable.
Verify programmable parameters using the information and programming bar codes provided in Section
5. Check interface and I/F options, inactive symbologies and other configurable features.
Does the scanner pass the data to the POS
?
YES
NO
DONE
Does the scanner read satisfactorily
?
NO
YES
DONE
Troubleshoot the host or call
Tech Support.
This concludes the Problem Isolation Chapter.
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Problem Isolation
NOTES
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2200VS/2200VS and 2300HS/2300HS
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