Ms6520 Series Troubleshooting Guide; Table 2 - Troubleshooting Chart – Powering Up Problems - Metrologic MS6520 Service Manual

6.4 MS6520 Series Troubleshooting Guide

TABLE 2 - TROUBLESHOOTING CHART – POWERING UP PROBLEMS
SYMPTOMS
No LEDs, beep or motor spin.
No LEDs, beep.
3 beeps on power up.
Continuous razz tone on
power up.
Razz tone and green LED
flash at power up.
Razz tone and both LEDs
flash at power up.
Red LED blinking. Green
LED is not lit.
POSSIBLE CAUSE(S)
1 - No power is being supplied to
the scanner.
2 - Bad Decode board.
1 – No power is being supplied to
the scanner front host.
1 – Non-volatile RAM failure.
1 – RAM or ROM failure.
1 – VLD failure.
1 – Scanner motor failure.
2 – Bad Decode board.
1 – Ribbon cable between signal
processor board and decode
board is not fully connected.
2 – VLD cable problem.
3 – Defective optics module.
4 – Unit programmed settings are
incorrect.
SOLUTION
1 – Check transformer, outlet and power strip. Make
sure the cable is plugged in to the scanner.
2 – Check Fuse on Decode Board / Replace fuse.
2a – Replace Decode Board.
1 – Some host systems cannot supply enough current to
power Omni-Quest. Use the power supply included
with the scanner.
1 – Contact a Metrologic Representative, if the unit will
not hold the programmed configuration.
1 – Contact a Metrologic Representative, if the unit will
not function.
1 – Replace VLD
1a – Replace Signal Processor Board.
1 – Check to ensure motor is proper connected into
decode board.
1a – Verify Motor Housing is able to spin freely and is
not obstructed by any objects/wires.
1b – Replace Motor Assembly.
2 – Replace defective Decode board.
1 – Check and reinstall ribbon cable.
2 – Check VLD cable for any damage. Reinstall VLD
cable.
3 – Replace defective optics module.
4 – Load Default scanner settings using Metroset.
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