EAW UX8800 owner manual Troubleshooting, Symptom Probable Cause Corrective Action

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11 TROUBLESHOOTING

Troubleshooting a malfunctioning UX8800 consists primarily of determining if it is incorrect settings, faulty or incorrect connections, or an electronic failure requiring service. This table lists some possible trouble symptoms, causes, and corrective actions.

Symptom

Probable Cause

Corrective Action

 

 

 

No power light

Power cord disconnected

Ensure the power cord is properly connected at both ends and that the ac mains is working.

 

 

 

No power light

Rear panel power switch is off

Turn the power switch on.

 

 

 

No power light

Improper ac mains voltage

The UX8800 is deigned for an ac mains voltage between 100 V and 240 V, 50 Hz to 60 Hz. If outside

 

 

these ranges, the UX8800 may fail to operate or become damaged.

 

 

 

No power light

ac mains fuse is blown due to an

Disconnect the ac mains from the unit. Using a small screwdriver gently pry out the small drawer

 

external cause

that is part of the rear panel ac mains connector.Check the fuse located on the right hand side. If the

 

 

fuse is blown but glass remains essentially clear, this can indicate a faulty fuse or temporary external

 

 

event, such as an excessive ac mains voltage spike. Replace the fuse with the supplied spare

 

 

replacement fuse located on the left side of the drawer. If the fuse blows again, it indicates an

 

 

internal failure and the UX8800 should be repaired by qualified service personnel.

 

 

Replacement Fuse: 4 A, slow-blow, 5 mm x 20 mm, 250V IEC

 

 

 

No power light

ac mains fuse is blown due to an

Disconnect the ac mains from the unit. Using a small screwdriver gently pry out the small

 

internal failure

drawer that is part of the rear panel ac mains connector.Check the fuse located on the right hand

 

 

side. If the fuse is blown and the glass is heavily blackened, this usually indicates an internal

 

 

failure. Do not replace the fuse. The UX8800 should be repaired by qualified service personnel.

 

 

 

No input meter lights

Incorrect settings

Check to be sure that:

 

 

1. The correct input signal type has been selected in the UTIL menu for Inputs A&B and Inputs

 

 

C&D.

 

 

2. Signal sources have been assigned in the CH menu for Channels A to D.

 

 

 

No input meter lights

No signal

Check to be sure there is signal from the source feeding the UX8800.

 

 

 

No input meter lights

Cables disconnected or faulty

Check the input cables to the UX8800 for faults or mis-wiring.

 

 

 

No input meter lights

Internal failure

Internal failure is possible. The UX8800 should be repaired by qualified service personnel.

 

 

 

No input and/or output meter

Incorrect settings

Check to be sure that all signal processing functions, especially gain controls, are correctly set

lights

 

for the intended application and that input and output channel source source assignments are

 

 

correct.

 

 

 

No input and/or output meter

Internal failure

Internal failure is possible. The UX8800 should be repaired by qualified service personnel.

lights

 

 

 

 

 

No output but meter lights work

Mutes are engaged

If the the output meters are functioning and there is no output, check to be sure that the output

 

 

mutes are not activated. The meters function independently of the mute switch.

 

 

 

No output and no output meter

Incorrect configuration

Check that the output(s) is assigned an Input Channel Signal Source.

lights on some or all channels

 

 

 

 

 

No output and no output meter

Incorrect settings

Check to be sure that all signal processing functions, especially gain controls, are correctly set

lights on some or all channels

 

for the intended application.

 

 

 

Strange malfunction(s), LCD

Digital lock-up

Power off, wait 10 seconds, then power on the processor to reset the digital electronics.

display corrupt, or any of the

 

 

above symptoms in this chart.

 

 

 

 

 

Panel is locked and forgot Pass

Alzheimers or equivalent

Reset the processor, contacting the factory for details on how to do this. WARNING: This

Code

 

process will reset ALL parameters to the factory default settings, erase all programs stored in

 

 

Loudspeaker Processor memories, and erase the existing Pass Code.

 

 

 

Ethernet and/or U-Net connection

Network connection faulty

Check the network LED indicators to determine the connection status. For indicator details, see

does not work

 

Chapter 8. This may help to determine the corrective action needed.

 

 

 

Ethernet connection does not

Incorrect cable

For direct connection to a computer, you must use the supplied Ethernet crossover cable or or

work

 

an equivalent user-supplied cable. For a connection to an Ethernet hub, switch, or router, you

 

 

must use a user-suppled, standard Ethernet cable.

 

 

 

Ethernet connection does not

IP address is incorrect

For a direct connection to a computer, set the IP address in the UTIL menu to static. Manually

work

 

assign the IP address by determining the computer’s IP address, making the first three number

 

 

groups the same as the computer’s, and making the fourth number group unique to the UX8800.

 

 

 

Ethernet connection does not

IP address is incorrect

For a connection to an Ethernet network, set the IP address in the UTIL menu to dynamic.

work

 

Power off and then power on the UX8800. If a DHCP server is present, it should assign an IP

 

 

address to the UX8800. If it fails to find an address, set the IP address to static and manually

 

 

assign it an IP address, making the first three number groups the same as the other devices on

 

 

the network and making the fourth number group unique to the UX8800.

 

 

 

U-Net connection does not work

Cable problem

Check that the cabling is a standard or crossover CAT-5 Ethernet cable and that the cable is

for EAWPilot control

 

functioning correctly. The U-Net ports auto-sense the cable configuration. The supplied Ethernet

 

 

crossover cable can be used for interconnecting U-Net ports. Note: Control signals are

 

 

automatically sent and received over U-Net connections.

 

 

 

U-Net connection does not work

Audio signal(s) not assigned to

Sending and receiving audio over U-Net requires assigning Input Channel and Output Channels

for audio

the U-Net channels

to the desired U-Net channels. In other words, there must be signals assigned to be sent over a

 

 

U-Net channel in order to receive signals on that U-Net channel. Use the CH U-Net Output

 

 

function for the Input Channels and Output Channels to send signals to U-Net channels. Use the

 

 

CH Src function for the Input Channels to receive U-Net signals from U-Net Channels.

 

 

 

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Contents 8 8 0 Page Impor tant Safety Instructions for Electronic Products Important Safety Instructions Read this FirstConsignes DE Sécurité À Lire EN Premier Precauzioni DI Sicurezza DA Leggere PER Primo Page Aviso Importante de Seguridad para Electrónico Productos Precauciones DE Seuridad LEA Esto PrimeroWichtige Sicherheitsanweisungen für Elektronische Produkte Sicherheitshinweise Zuerst LesenPage FCC Information to the User EC Declaration of ConformityN T E N T S O n t e n t s UnpackingShipping Damag e Returning a Processor to EAWIntroduction Features and BenefitsUX8800 Description Networking CapabilitiesRear Panel Front PanelUX8800 Installation Physical InstallationAC Mains Connections Network Connections Audio ConnectionsConnecting ONE Processor to ONE Computer Connecting ONE Computer to Multiple Processors Using U-NETConnecting ONE Processor to AN Ethernet Network Connecting Multiple Processors to AN Ethernet Network Operation Initial Setup Power On /OffFront Panel Controls Util System Set Up Program Load Operation HumidityLCD Contrast Unit of MeasurementOperation System Processor Mode E V E L Over Output Channels 1 toLIM Output Channels 1 to 1 D E L AY 0 P R O GSelect Loudspeaker Processor Mode Operation Loudspeaker Processor ModeGreybox Processing Generic ProcessingType MAX Voltage NET OutputOver Input Channels a to D Level Input Channels a to DListener Distance and AIR Loss PRE-EMPHASIS HPF Freq and LPF FreqDelay Input Channels a to D EQ Input Channels a to DProg Net Indicators LED IndicatorsInput meters Output MetersExtra Capabilities EawpilotReturn and Repair Issues Maintenance and ServiceHow To Contact EAW A i n t e n a n c eSymptom Probable Cause Corrective Action TroubleshootingUX8800 Block Diagram Loudspeaker ProcessorMode Appendix System Processor Mode ProcessingGreybox Information Purpose for Greybox FilesPage Page Page One Main Street, Whitinsville, MA USA 01588 508-342-6158 FAX

UX8800 specifications

The EAW UX8800 is a powerful digital signal processor designed for professional audio applications, particularly in live sound reinforcement and installations. Known for its remarkable flexibility and advanced features, the UX8800 serves as a vital tool for sound engineers seeking to achieve optimal audio performance.

One of the standout characteristics of the UX8800 is its extensive I/O capabilities. The unit offers up to 8 input and 8 output channels, which can be configured in various ways to accommodate different audio routing needs. This versatility makes it ideal for a range of applications, from concert touring to fixed installations in theaters and large venues.

The UX8800 employs advanced digital signal processing technologies that allow for intricate control of audio signals. It includes powerful algorithms for equalization, dynamic processing, delays, and crossover functions. This enables engineers to tailor the sound precisely to the acoustics of the venue, ensuring that every nuance of the audio is accurately reproduced.

One of the key features of the UX8800 is its user-friendly interface. Equipped with an intuitive PC-based control software, users can access and adjust settings through a visual representation of their audio system. This graphical interface simplifies the process of setting up and adjusting parameters, making it easier for sound technicians to make real-time changes during performances.

Additionally, the UX8800 provides a variety of connectivity options, including digital connectivity through AES/EBU, as well as analog connections. This ensures compatibility with a wide range of audio sources and systems, allowing for seamless integration into existing setups.

The device also supports advanced networking capabilities, enabling multiple units to be linked together for larger systems. This feature is particularly useful in larger venues where synchronization between multiple processors is essential for achieving cohesive sound.

With its robust construction and reliability, the EAW UX8800 is engineered to withstand the rigors of professional use. It is designed to operate efficiently in challenging environments, ensuring consistent performance night after night.

In conclusion, the EAW UX8800 is a premier choice for audio professionals seeking a powerful, flexible, and reliable digital signal processor. Its array of features, cutting-edge technologies, and intuitive interface make it an essential tool for anyone serious about achieving top-notch audio quality in any setting.
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