EAW Loudspeaker's owner manual Troubleshooting, I g g i n g P r o b l e m s, O s m e t i c s

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Cosmetics:

Various finishes are used on loudspeaker enclosures depending on the product and its applications. While these finishes are designed to be durable over long periods, like any applied finish, they can deteriorate over time, largely depending on the conditions of use. While this deterioration will not affect performance, refinish the loudspeaker as needed for aesthetic reasons. Contact the EAW Service Department for instructions.

Section 12 Troubleshooting

1 2 . 1 R i g g i n g P r o b l e m s

Because of the potential serious consequences and liabilities due to faulty rigging, contact the EAW Service Department to determine the appropriate service solution for any problems with the rigging hardware integral to the enclosure or EAW rigging accessories.

1 2 . 2 E n c l o s u r e a n d I n t e g r a l H a r d w a r e

Enclosure problems, such as loose hardware, faulty joints, or other structural problems, will usually be heard as distinct buzzes, rattles, or other unwanted noises. To test for enclosure problems, use a sine wave signal manually swept on the LF sub-system. The input level should be varied, because certain problems can be level as well as frequency specific. However, in no circumstances should the sine wave level be higher than 6 dB below rated power (equal to no higher than 1/2 rated rms input voltage). It may be possible to field-repair some enclosure problems.

1 2 . 3 C o s m e t i c s

While the paint finish and the wood used for the enclosures is of high quality and durability, mars, marks, and other blemishes may appear from normal handling for an installation. For paint touchup, use good quality latex paint. For a more permanent and cosmetically correct appearance, contact the EAW Service Department for the paint specifications or to purchase small quantities for touch-up. For cosmetically damaged wood, use common woodworking methods and materials as appropriate for the damage.

1 2 . 4 I s o l a t e d S o n i c P r o b l e m s

1 2 . 4 . 1 W h a t i s I n v o l v e d

Loudspeakers invariably consist of an input panel, internal components and wiring, drivers, and an enclosure. All internal components - drivers, crossover/filters, and wiring

-are accessible from the front of the enclosure by detaching the grille and removing the MF/HF horn and/or woofers.

Troubleshooting for various performance problems usually involves isolating the problem to one of these areas. In most cases, the fault can be clearly isolated to one of them and that will determine the appropriate action for servicing.

1.Drivers

2.Input panel, internal crossover/filter components, and wiring (unpowered loudspeakers)

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Contents W L O U D S P E a K E R O W N E R ’ S M a N U a L Important Safety Precautions -Read This First Iii Consignes DE Sécurité À Lire EN Premier Precauzioni DI Sicurezza DA Leggere PER Primo Page Vii Precauciones DE Seuridad LEA Esto PrimeroViii Sicherheitshinweise Zuerst LesenPage I g g i n g M o u n t i n g / S u s p e n s i o n C D e c l a r a t i o n o f C o n f o r m i t yPage Xii U r c h a s e r a n d U s e r R e s p o n s i b i l i t yContents Xiv E t u r n i n g P r o d u c t t o E AW SectionRigging / Mounting / Suspension H i p p i n g D a m a g eI g g i n g I n f o r m a t i o n E f i n i t i o n sPage Wo r k i n g L o a d L i m i t s I g g i n g H a r d w a r e a n d a c c e s s o r i e s Rigging DesignE s i g n Fa c t o r I g g i n g D e s i g n P r a c t i c e sO w e r R a t i n g s Amplifier Power RequirementsE l e c t i n g a n a m p l i f i e r Te m p e r a t u r e C h a n g e s Locating the LoudspeakerR e v e n t i n g L o u d s p e a k e r D a m a g e M b i e n t Te m p e r a t u r e sI g n a l L e v e l s E a t S i n k Ve n t i l a t i o nT a g e M o n i t o r a p p l i c a t i o n s E u t r i k N L a n d C a n n o n a P C o n n e c t o r s Signal ConnectionsO u d s p e a k e r W i r e G a u g e Tw o C o n n e c t o r sO o p o r T h r u C o n n e c t o r Typical XLR-3 Input and Loop Through ConnectorsN p u t C o n n e c t i o n I n g l e a m p l i f i e d M o d e Signal ProcessingN p o w e r e d L o u d s p e a k e r s N p u t C a b l eU l t i a m p l i f i e d M o d e U b w o o f e r S i g n a l P r o c e s s i n gX 8 7 5 0 O u t p u t L i m i t e r W i z a r d N p o w e r e d L o u d s p e a k e r s L i m i t e r sI m i t e r s a n d L i m i t i n g X 8 7 5 0 L i m i t e r D e s i g nI m i t e r s Operating the LoudspeakerP e r a t i n g L i m i t s C o u s t i c L e v e l P r e c a u t i o n sP e r a t i n g L e v e l s Te s t i n g a n d Te s t S i g n a l sE a s u r e m e n t s Inspection and MaintenanceI g g i n g I n s p e c t i o n E r i o d i c I n s p e c t i o nV e r a l l P h y s i c a l I n s p e c t i o n O u t i n e M a i n t e n a n c e E r i o d i c P e r f o r m a n c e Te s t i n gE r i o d i c M a i n t e n a n c e E r i o d i c a c o u s t i c a l M a i n t e n a n c eO n g Te r m M a i n t e n a n c e O s m e t i c M a i n t e n a n c eO s m e t i c s TroubleshootingI g g i n g P r o b l e m s N c l o s u r e a n d I n t e g r a l H a r d w a r eR o s s o v e r s R o b l e m S y m p t o m sR i v e r s N p u t P a n e l a n d W i r i n gO w e r e d L o u d s p e a k e r E l e c t r o n i c s O S o u n d o r L o w O u t p u tI s t o r t e d S o u n d P e r a t i n g Q u e s t i o n s Contacting EAWSection PN 425017 E DEC05
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