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7.0 Troubleshooting Table
No Power
• Turn on power.
• Make sure the power cord is plugged in.
Power is on, but no sound
• Make sure the source is turned on.
• Verify that there is an input signal from the source. The audio input signal indicator on
the front of the chassis should be green.
• Check the output signal indicators on the system controls. If the LED is not lit (green),
the output levels may be too low.
• Check the source routing.
• Check the cable connections from the source to the chassis.
• Verify the user interfaces are of the right type for the operating mode selected.
Power is on, but sound is low
• Verify that the audio input indicator is lit (green). If it is not lit, increase the source
output or increase the input gain.
Sound is distorted
• Verify that the Input clipping indicators are not lit (red). If an LED is red, reduce the
source output level or reduce the input gain.
• Verify that the Output clipping indicators are not lit (red). If one is red, but Input clip-
ping LEDs are not, reduce the output gain.
• If the input source signal is clean when it enters the chassis and the Input and Output
indicators are green, verify that the loudspeakers are not overdriven or damaged.
Unnatural sound
• Verify that the correct EQ is selected for speakers connected to the Output channel.
• Verify that the speakers are wired correctly (+ to + and - to -).
User interfaces do not operate
properly
• Verify that the user interfaces are wired correctly and to the proper zone (if there is
more than one zone).
• Check the wiring for breaks or shorts in the cable.
• Verify the user interfaces are of the right type for the operating mode selected.
7.1 Technical assistance
If you need further technical assistance, contact your local Bose
®
representative, or visit pro.Bose.com.
7.0 Trouble table.fm Page 32 Monday, February 12, 2007 9:08 AM