Crown Audio 133472-1A manual No Power

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24

Chapter 2: Troubleshooting

2.1 No Power

Figure 2.2

No Power

No Power

Is amp plugged

in to the AC

source?

Yes

Plug amp in to the

No

AC source.

Is the Power

(Enable)

No

Turn the Power

switch on?

Yes

Is the Power

(Enable)

indicator lit?

Yes

Is an

IQ System controlling amp?

No

Refer amp to

service center.

(Enable) switch on.

Is AC source

No supplying power to outlet?

Yes

Does amp have a fuse or circuit breaker?

 

 

 

 

 

 

 

 

Verify power to

 

 

 

 

 

 

Fuse

Yes

 

amp is turned on

 

 

 

 

 

 

 

 

in IQ System.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is fuse

internal or external?

Internal

 

External

 

 

 

 

 

 

 

 

Internal Fuses

NOT

user-replaceable.

Restore AC power

No

to outlet.

 

 

Reset circuit

Circuit

 

Breaker

 

breaker.

 

 

 

 

 

 

 

 

Did it trip

 

 

Amp o.k. to

No

 

again?

 

operate.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

Replace fuse with new fuse of identical rating.

Amplifier Application Guide

Image 24
Contents Amplifier Application Guide Important Safety Instructions Crown Technical Support GroupTable of Contents Introduction Chapter Rack CoolingThis Chapter Fan-Assisted ModelsConvection-Only Models System Wiring Input WiringInput Connector Wiring Balanced, Grounded SourceUnbalanced, Grounded Source Twin-Lead Shielded Cable Unbalanced, Floating Source Twin-Lead Shielded CableSolving Input Problems Radio Frequencies RFHum and Buzz Output Wiring Output Connector WiringBalanced vs. Unbalanced Way Binding PostOutput Wiring Tips Barrier BlockNeutrik Speakon Connector Assembly Insert into Connector Housing Connecting the Speakon plug to the mating connector Amplifier Load ImpedanceParallel Speaker Impedances Parallel Impedances Determining Appropriate Speaker Wire Gauge Loudspeaker ProtectionSolving Output Problems High-Frequency OscillationsLoudspeaker Fuse Nomograph Distributed Speaker Systems Sub-Sonic CurrentsUsing Low-Impedance What is Constant Voltage?Multi-way Systems With Expansion Modules Active vs. Passive Crossover NetworksCrown Amplifiers In-Depth Fault Status External Circuit Design Fault Monitoring SettingRJ Jack Wiring and Pin Assignments Optimal System Headrom System GainSystem Levels Amplifier LevelTroubleshooting No Power No PowerNo Sound No SoundBad Sound Amp OverheatingBCA EMI Fault Equalization EQFader FrequencyIOC OdepPIP PIP2THX Appendix Audio Systems Technology, LevelHandbook for Sound Engineers The New Audio Cyclope- dia Items Excluded from this Crown Warranty HOW to Obtain Warranty ServiceWhat the Warrantor will do Disclaimer of Consequential & Incidental DamagesFull Warranty Three Year

133472-1A specifications

Crown Audio 133472-1A is a sophisticated and highly regarded power amplifier designed for professional audio applications. Known for its reliability and high performance, the 133472-1A is favored by sound engineers, musicians, and event organizers who seek exceptional audio clarity and robust amplification.

One of the standout features of the Crown Audio 133472-1A is its impressive power output. This amplifier is capable of delivering substantial wattage, ensuring that it can effortlessly drive a variety of loudspeaker systems without distortion, even at high volumes. This makes it particularly suitable for large venues, concerts, and public gatherings where sound coverage is critical.

The 133472-1A utilizes advanced technologies to enhance its performance. For instance, it incorporates a patented output stage design that minimizes distortion, allowing for a cleaner and more accurate sound reproduction. This is especially important in professional audio environments where audio fidelity is paramount. Additionally, the amplifier features sophisticated thermal management systems that prevent overheating, ensuring reliable operation during extended use.

Another key characteristic of the Crown 133472-1A is its versatility. It is engineered to work seamlessly with a range of audio sources, making it an ideal choice for various applications, including live performances, installations, and broadcasting. Its multiple input options, including XLR and TRS connectors, allow for flexible connectivity options, accommodating various audio setups.

Durability is also a significant aspect of the Crown Audio 133472-1A. Constructed with high-quality materials and robust components, this amplifier is built to withstand the rigors of professional use. Its rugged chassis design provides added protection, making it suitable for both touring and fixed installations.

Furthermore, the Crown 133472-1A offers user-friendly features such as intuitive controls and indicators, allowing users to monitor performance easily. This includes LED status indicators that provide real-time feedback on operation, making it simple to troubleshoot any issues.

In summary, the Crown Audio 133472-1A is a powerhouse amplifier that combines high output, advanced technologies, and durable construction. Its versatility makes it a preferred choice for professionals seeking reliable and superior audio performance in live and installed environments. Whether for music events, speeches, or any high-stakes audio requirements, the 133472-1A delivers the quality and performance essential for exceptional sound.