Installation Guide English 31
Technical Information
pro.Bose.com
Troubleshooting
Problem What to do
No power • Turn on power. Green LED on front panel will be visible when power is on.
• Make sure the power cord is plugged in.
• Try a dierent AC outlet that is working with another piece of equipment.
Power is on, but no
sound
• Make sure the input source is turned on.
• Verify that there is an input signal from the source.
• Check the cable connections from the source to the amplifier.
• Make sure the OUTPUT ATTENUATION controls are not turned down to mute.
• If a CC-1 zone controller is connected to the ControlCenter connector on the rear panel, make sure
the volume control on the zone controller is turned up.
• If a contact closure is connected to the MUTE connector on the rear panel, check the switch to
ensure the mute function has not been triggered.
• Make sure that loudspeaker taps are set correctly.
• Check that the amplifier has adequate ventilation. Improper ventilation could cause the amplifier
to go into thermal protection mode and no audio will be heard.
• Ensure that the output wiring is correct. A short circuit will cause the amplifier to go into
protection mode and no audio will be heard.
Power is on, but
sound is low
• Verify that the audio input source output is turned up to a nominal level.
• Check the cable connections from the source to the amplifier.
• Make sure the OUTPUT ATTENUATION controls are not turned down too low.
• If a CC-1 zone controller is connected to the ControlCenter connector on the rear panel, make sure
the volume control on the user interface is turned up.
• Make sure that loudspeaker taps are set correctly.
Sound is distorted • Verify that the SIGNAL LED on the front-panel is not red, indicating clipping. If it is red, reduce
the source output level, or increase the amplifier sensitivity to 12 dBu.
• If the input source signal is clean, verify that the loudspeakers are not overdriven or damaged.
Check the loudspeaker tap setting.
Unnatural sound • Verify that the proper EQ preset is selected for the loudspeakers being used.
Limited Warranty
Your product is covered by a limited warranty, Visit pro.Bose.com for warranty details.
The warranty information provided with this product does not apply in Australian and New Zealand. See our website at
www.bose.com/au/warranty or www.bose.com/nz/warranty for details of the Australian and New Zealand warranty.
To Next Page
Loading...
