Specifications

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724-746-5500 | blackbox.com
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 [e-mail].
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.