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Hardware Installation
Maintenance Operations
Firmware & Software Upgrades
Bose periodically releases updates for the processor firmware as well as the ControlSpace Designer software.
Please visit pro.Bose.com regularly to check for updates.
Battery Replacement
The ESP-880A, ESP-880AD, ESP-1240A, and ESP-1240AD each contain a replaceable lithium battery for
maintaining the real-time clock (RTC) capability of the system. This battery lasts at least 10 years from the
time of production and rarely requires replacement.
Troubleshooting
The Power LED on front panel is
not lit solid green.
The power is on, but there is no
sound.
The sound is distorted.
The Power LED is red.
22 • English
Use the included power cord to connect the processor's power inlet (on
the rear panel) to a power outlet.
Make sure that the mains power is active.
Use the ControlSpace Designer software to make sure that there is an
input signal from the source. The audio signal level should be in the
green or yellow band of the meter.
Use the ControlSpace Designer software to make sure that there is an
output signal from the processor. The audio signal level should be in
the green or yellow band of the meter.
Using the ControlSpace Designer software, check the audio input
signal indicators. If the indicators are solid red or flashing red, reduce
the input pre-gain setting until the signal is no longer clipping (red).
Using the ControlSpace Designer software, check the audio output
signal indicators.
If the indicators are solid red or flashing red, and if the input
indicators are green, use the software to reduce the output gain or
any intermediary gain in the signal path.
If the input and output indicators are green, and if the input signal
is undistorted when it enters the processor, make sure that the
loudspeakers are not being overdriven and are not damaged.
The DSP configuration is not loaded. Use the ControlSpace Designer
software to load a DSP configuration.
Disconnect the power cord from the power outlet, and then reconnect
it. If the issue continues, call your Bose Professional sales/support
representative.
ControlSpace ESP-880A/880AD/1240A/1240AD • Installation Guide
pro.Bose.com
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