EAW UX8800 Owner's Manual
Also see for UX8800: Technical noteQuick start guideQuick start guideQuick start
                                        | |
Contents
| 
1 1 T RO U B L E S H O OT I N GTroubleshooting 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 possibletrouble symptoms, causes, and corrective actions.Page 23Symptom Probable Cause Corrective ActionNo 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 outsidethese ranges, the UX8800 may fail to operate or become damaged.No power light ac mains fuse is blown due to anexternal causeDisconnect the ac mains from the unit. Using a small screwdriver gently pry out the small drawerthat is part of the rear panel ac mains connector.Check the fuse located on the right hand side. If thefuse is blown but glass remains essentially clear, this can indicate a faulty fuse or temporary externalevent, such as an excessive ac mains voltage spike. Replace the fuse with the supplied sparereplacement fuse located on the left side of the drawer. If the fuse blows again, it indicates aninternal failure and the UX8800 should be repaired by qualified service personnel.Replacement Fuse: 4 A, slow-blow, 5 mm x 20 mm, 250V IECNo power light ac mains fuse is blown due to aninternal failureDisconnect the ac mains from the unit. Using a small screwdriver gently pry out the smalldrawer that is part of the rear panel ac mains connector.Check the fuse located on the right handside. If the fuse is blown and the glass is heavily blackened, this usually indicates an internalfailure. 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 InputsC&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 meterlights Incorrect settings Check to be sure that all signal processing functions, especially gain controls, are correctly setfor the intended application and that input and output channel source source assignments arecorrect.No input and/or output meterlightsInternal failure Internal failure is possible. The UX8800 should be repaired by qualified service personnel.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 outputmutes are not activated. The meters function independently of the mute switch.No output and no output meterlights on some or all channelsIncorrect configuration Check that the output(s) is assigned an Input Channel Signal Source.No output and no output meterlights on some or all channelsIncorrect settings Check to be sure that all signal processing functions, especially gain controls, are correctly setfor the intended application.Strange malfunction(s), LCDdisplay corrupt, or any of theabove symptoms in this chart.Digital lock-up Power off, wait 10 seconds, then power on the processor to reset the digital electronics.Panel is locked and forgot PassCode Alzheimers or equivalent Reset the processor, contacting the factory for details on how to do this. WARNING: Thisprocess will reset ALL parameters to the factory default settings, erase all programs stored inLoudspeaker Processor memories, and erase the existing Pass Code.Ethernet and/or U-Net connectiondoes not workNetwork connection faulty Check the network LED indicators to determine the connection status. For indicator details, seeChapter 8. This may help to determine the corrective action needed.Ethernet connection does notworkIncorrect cable For direct connection to a computer, you must use the supplied Ethernet crossover cable or oran equivalent user-supplied cable. For a connection to an Ethernet hub, switch, or router, youmust use a user-suppled, standard Ethernet cable.Ethernet connection does notworkIP address is incorrect For a direct connection to a computer, set the IP address in the UTIL menu to static. Manuallyassign the IP address by determining the computer’s IP address, making the first three numbergroups the same as the computer’s, and making the fourth number group unique to the UX8800.Ethernet connection does notworkIP address is incorrect For a connection to an Ethernet network, set the IP address in the UTIL menu to dynamic.Power off and then power on the UX8800. If a DHCP server is present, it should assign an IPaddress to the UX8800. If it fails to find an address, set the IP address to static and manuallyassign it an IP address, making the first three number groups the same as the other devices onthe network and making the fourth number group unique to the UX8800.U-Net connection does not workfor EAWPilot controlCable problem Check that the cabling is a standard or crossover CAT-5 Ethernet cable and that the cable isfunctioning correctly. The U-Net ports auto-sense the cable configuration. The supplied Ethernetcrossover cable can be used for interconnecting U-Net ports. Note: Control signals areautomatically sent and received over U-Net connections.U-Net connection does not workfor audioAudio signal(s) not assigned tothe U-Net channelsSending and receiving audio over U-Net requires assigning Input Channel and Output Channelsto the desired U-Net channels. In other words, there must be signals assigned to be sent over aU-Net channel in order to receive signals on that U-Net channel. Use the CH U-Net Outputfunction for the Input Channels and Output Channels to send signals to U-Net channels. Use theCH Src function for the Input Channels to receive U-Net signals from U-Net Channels. |
Related manuals for EAW UX8800
This manual is suitable for:
manualsdatabase
Your AI-powered manual search engine