Operation; Front Panel Features - Extron electronics XPA Ultra Series User Manual

Operation

This section describes the installation and setup of the XPA U 3502 power amplifier.
Topics include:
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Front Panel Features

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Figure 11.
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Front Panel Features
Rear Panel Features
Troubleshooting
Power/Standby Indicator
XPA U 3502 Front Panel
Power/Standby LED — A single LED that lights green when the unit is on and active,
and lights amber when:
• The unit is in standby mode, which turns off all outputs from the amplifier although
the amplifier still receives power.
The unit will not come out of standby when DC voltage is detected. The amplifier
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only comes out of standby mode by either resetting the device or powering it down.
NOTE:
Power indicator LED may stay lit amber for a short time after removing the AC
Power Supply. This is normal.
Over Temp Indicator — A single LED that lights red when the amplifier has exceeded
the maximum recommended operating temperature. The amplifier recovers once the
unit has cooled down to below the maximum recommended operating temperature.
Power limiting may occur, but it depends on the unit's temperature.
Channel Status LEDs — Two rows of LEDs that represent the amplifier's channels.
• Limiter/Protect LED — The LEDs lights red when the channel is in protection
mode, which is triggered by any of the limiter protection circuits such as:
• When the clip limiter is activiated due to excessive clipping.
• When the output short circuits.
Signal LED — The LEDs light green when the input signal is detected.
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NOTE:
The LEDs are also located on the rear panel.
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Over Temp Indicator
XPA U 3502 • Installation
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Channel Status LEDs
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