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Chapter 7: Troubleshooting
7. Troubleshooting
7.1 Problems/Solutions
Table 7-1. Troubleshooting.
Malfunction
Possible Cause
Recommended Solution
Remarks
Failure to turn on/off
No power input
Plug in battery or AC
DIY
Battery exhausted
Charge battery
DIY
Reverse-installed battery
Re-install battery
DIY
Still doesn’t work
Return
ON and OFF disorder
Low battery
Charge battery or use AC
power supply
DIY
Inaccurate measurement
Contaminated connector
Swab the dust using a thin
cotton swab saturated with
alcohol
DIY
Connected or unfitted
Re-install the connector
DIY
Error display
Humid environment
Try later when it is not too
humid
DIY
Magnetic field
environment
Stay far away from a
magnetic field
DIY
Metal dust environment
May cause damage on
mainboard
Return
ON and OFF failure
Keypad short circuit
Replace keypad
Return
7.2 Contacting Black Box
If you determine that your Quad Laser Source is malfunctioning, do not attempt
to alter or repair the unit. It contains no user-serviceable parts. Contact Black Box
Technical Support at 724-746-5500 or [email protected].
Before you do, make a record of the history of the problem. We will be able to
provide more efficient and accurate assistance if you have a complete description,
including:
• the nature and duration of the problem.
• when the problem occurs.
