Crown Audio CE Series operation manual Troubleshooting, Condition Power indicator is off

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CE Series Power Amplifiers

6 Troubleshooting

CONDITION: Power indicator is off.

POSSIBLE REASON

• The amplifier has lost AC power.

• The amplifier’s Power switch is off.

• The amplifier’s power cord is not plugged in at either end.

• The amplifier’s circuit breaker has tripped. Allow the amplifier to cool, remove excessive loads, and press the reset switch on the front panel.

CONDITION: No input signal (Signal indi- cator is not flashing even though audio is applied).

POSSIBLE REASON:

• Input signal level is very low.

• Master audio from mixer turned down.

• Input cable broken or not plugged in.

• Front-panel Level controls are turned down.

CONDITION: Fault indicator is flashing.

POSSIBLE REASON:

• The amplifier has just been turned on and is still in the 4-second turn-on delay.

• The heatsinks are too hot.

• The transformer thermal protection is activated.

• The amplifier output wires have developed a short circuit.

• The amplifier output stage has stopped operat- ing. Refer the unit to an authorized Crown Ser- vice Center

The fault status of the amplifier can also be moni- tored remotely by attaching a signal device to the Fault jack located on the amplifier back panel. See Section 4.2.2 for more detail.

Operation Manual

CONDITION: Distorted sound.

POSSIBLE REASON:

•Load is wired incorrectly or Stereo/Mono mode switch is set incorrectly. Check both.

•Input signal level is too high. Turn down your amplifier level controls, or turn down the input signal, until the clip LED goes out.

Note: If sound is distorted but clip LED is not flash- ing, check mixer levels and gain staging, mixer clip lights, and pads built into microphones.

CONDITION: Input signal but no sound.

POSSIBLE REASON:

•Speakers not connected. Make sure the Neutrik NL4 connector is fully seated and locked.

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Contents Some models may be exported under the name Amcron CE SeriesCE Series amplifiers require Class 2 output wiring Important Safety InstructionsWatch for These Symbols Use only with a cart, stand, bracket, or tableCrown International, Inc Safety StandardTCF Technical Certificate No C975CRI1.ABS Competent Body’s Name and AddressTable of Contents How to Use This Manual FeaturesWelcome Accurate, undistorted soundSetup Unpack Your Amplifier Install Your AmplifierYou may also stack amps without using a cabinet Balanced Input Connector Wiring Choose Input Wire and ConnectorsNeutrik Speakon Connector Choose Output Wire and Con- nectorsWire Your System Stereo Mode How to Parallel the InputsSee the next page for Bridge-Mono wiring 11 Typical System Wiring, Bridge-Mono Mode Bridge-Mono ModeInput Sensitivity Switch Sensitivity SwitchStartup Procedure Operation PrecautionsControls, Indicators and Connectors Reset Switch Front Panel Controls Indicators Power SwitchFault Indicators Clip IndicatorsAdvanced Features Options SST-SBSC 4632T SST-SBSC-3632TLocation of Fault Jack Fault MonitoringAlternate Output Connectors Options AccessoriesOptional 0.775 V Input Sensitivity Setting Tamper-Resistant Hole PlugsPrinciples of Operation Power LED is driven from the low-voltage supplyCE Series Amplifier Block Condition Power indicator is off Troubleshooting120 VAC, 60 Hz Units, Bridge mono mode SpecificationsService Warranty Worldwide Except USA & Canada Items Excluded from this CROWN- WarrantyThis page intentionally left blank Nature of Problem Crown Factory Service Information

CE Series specifications

Crown Audio’s CE Series amplifiers are designed to deliver high performance and reliability for a variety of applications, including live sound, commercial installations, and houses of worship. Renowned for their durability and efficiency, the CE Series combines advanced technology with user-friendly features to appeal to both professional audio engineers and casual users.

One of the standout characteristics of the CE Series is its robust construction. Built to withstand the rigors of live events and handling, these amplifiers are housed in a rugged chassis that ensures long-term durability. The fan cooling system is designed for efficient thermal management, keeping the amplifier cool even during extended use, which is crucial for maintaining optimal performance.

The CE Series boasts a range of power options, making it versatile for different setups. With models delivering from 1500W to over 4000W per channel, users can choose the appropriate amplifier to match their specific requirements. This flexibility allows the CE Series to support a wide array of speakers and systems, whether for small venues or large-scale arenas.

Crown utilizes innovative technologies in the CE Series amplifiers. One of the key features is the DSP (Digital Signal Processing), which enhances sound quality and allows for precise control over the audio output. The onboard DSP includes presets for various speaker configurations, EQ settings, and time alignment features, facilitating quick adjustments to achieve the desired sound quality.

Another notable feature is the built-in limiters, which protect both the amplifier and speakers from damage due to overload or clipping. This protection ensures reliability during high-pressure situations, such as concerts or events where audio levels can fluctuate dramatically.

Connectivity options in the CE Series are also comprehensive. The amplifiers come equipped with both analog and digital inputs, allowing compatibility with a wide range of audio sources. Additionally, the rear panel includes speakON® outputs for quick and secure speaker connections.

With its combination of power, reliability, and advanced technology, Crown Audio’s CE Series amplifiers stand out in the crowded field of professional audio equipment. These features make the CE Series an excellent choice for audio professionals seeking quality performance across various applications. Whether for a permanent installation or a touring setup, the CE Series amplifiers deliver the sound, durability, and versatility required by today’s audio engineers.
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