EAW SB730 Owner's Manual
Also see for KF730P: Specification sheet
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Page 26 of 28 RD0169 (A) KF730 & SB730 OWNER’S MANUAL8. SERVICE AND MAINTENANCE8.1 GENERAL SERVICEFor any faults that cannot be field-repaired as noted below, contact the EAW Service Departmentlisted in Chapter 7 to determine the appropriate action. This applies to both warranty and non-warranty faults.8.2 RIGGING SERVICEBecause of the potential, serious consequences and liabilities due to faulty rigging, contact EAWto determine the appropriate service solution for any rigging hardware problems.8.3 BASIC FIELD TROUBLESHOOTINGEach KF730 and SB730 loudspeaker has an input panel, internal components and wiring,transducers, and an enclosure. Troubleshooting for various performance problems usuallyinvolves isolating the problem to one of these areas:1. Transducers2. Input panel, internal components, and wiring3. Enclosure and integral hardwareIf no problems can be traced to any of these items, look for problems with external electronics orcabling. Troubleshooting these items is beyond the scope of this manual.8.3.1 TransducersA faulty transducer will usually cause readily audible distortions or other unwanted noises. Inother cases, they may stop functioning. Use your ears and test signals or other sound source todetermine which one is at fault. Normally a faulty transducer requires service or replacement byEAW.8.3.2 Input panel, Internal Components and WiringFaults with these items will usually cause transducers to stop working or possibly be intermittent.Check that audio signals pass from the input jacks to the transducer terminals. Many faults withthis area can be field-repaired.8.3.3 EnclosuresEnclosure problems, such as loose hardware, faulty joints, or other structural problems, willusually be heard as distinct buzzes, rattles, or other unwanted noises. To test for enclosureproblems, use a sine wave signal manually swept on the LF sub-system. The input level shouldbe no more than 6 dB below rated power (equals no more than 1/2 rated voltage). It may bepossible to field-repair some enclosure problems.8.4 INSPECTION8.4.1 In-Use InspectionVisually inspect all rigging parts and enclosures each time they are used for wear, deformation,cracks, corrosion, damage, and any other condition that may affect load handling capability.DANGER: If there is any question about the integrity or capability of any rigging part to performits intended function, immediately remove it from service for repair or replacement. |
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