4312/B Troubleshooting Guide
Contents
1. ERS HV250 Infinity Loudspeaker Troubleshooting Repair Tips Most customers prefer to do simple loudspeaker repairs themselves By following the steps below a majority of loudspeakers can be returned to their original factory performance with minimum effort Choose the example that best describes the problem you are experiencing Problem 1 No sound or distorted sound from one loudspeaker in a pair or set Connect the dead distorting loudspeaker to a different amplifier channel one that had a functioning loudspeaker connected to it If it functions normally the problem is not loudspeaker related If the loudspeaker still makes no sound or sounds distorted a wire may have become loose or disconnected the network also known as a crossover may be defective the drivers woofer tweeter etc may be defective or in very rare cases all may be defective Refer to the wiring diagram and exploded view below The network is a small circuit board found on the inside of the terminal cup or mounted to an inside wall of the enclosure It sends low frequency sounds to the woofer high frequency sounds to the tweeter and if applicable mid frequency sounds to the midrange driver Make sure all wires are secure and connected Look for components on the network that look burnt bulged or abnormal If everything looks normal connect the network to the drivers from another matching loudspeaker MAKE SURE you attach the correct wires to each driver2. bination of the above If only one loudspeaker is exhibiting the problem and you re confident that it s not caused by too little power too much power excessive equalization see solutions for Problems 1 and 2 WIRING DIAGRAM EXPLODED VIEW TWEETER f Item Description Qty Part No Mesi f g N oa ese 1 CROSSOVER NETWORK 1 013 7500 00961 TWEETER ASSEMBLY 1 96DA20AG DT02 TWEETER GASKET 1 336 EVA 05140 0BA WOOFER 2 13PR85BQ W03 PLASTIC BAG 1 NA GRILLE 1 no O TWEETER LOGO 1 316 ABS 05066 0BA GRILLE LOGO 1 316 POL 00238 3 FRONT BAFFLE ASSEMBLY 1 242 050 05102 0WA SCREWS DOG 352 BM04062D942 SCREWS TWEETER NETWORK 352 CM04010D943 SCREWS WOOFER 352 FM04010D462 OUTER CARTON 1 402 000 05327 CUTTING TEMPLATE 1 404 000 05042 PAINT SHIELD 1 221 050 05047 0TA WARRANTY CARD 1 405 000 00312 OWNER S MANUAL 1 406 000 05233 EPS PACKING MATERIAL SET 1 431 000 05267 ERS HV250 ROUGH IN FRAME part IW55 RIF V CROSSOVER GRN NETWORK 013 7500 00961 Co o u oun Ae WwW PY
3. mid and low frequency sounds can damage the tweeter If there is still no sound or distorted sound the network is defective If there is clean undistorted sound the drivers are defective Problem 2 No sound or distorted sound from one or more but not all drivers in an enclosure Remove the problem driver s from the enclosure and make sure all wires are secure and connected If they are proceed with the following test Woofer or midrange driver Connect the driver s and input terminals directly to the loudspeaker wires from your receiver amplifier and play some music at a reasonable volume If the driver now sounds normal produces a clean undistorted sound the network is most likely defective Tweeter Replace the tweeter with a functioning tweeter from another loudspeaker If the tweeter now functions normally produces clean undistorted sound the original tweeter is defective If the replacement tweeter also sounds distorted or produces no sound the network is most likely defective Problem 3 Loudspeakers distort rattle or pop at higher volumes This is usually NOT a loudspeaker problem Common causes are too much power playing the loudspeakers too loud and causing them to distort an amplifier with not enough power the amplifier can t produce the required volume without distorting excessive equalization turning the tone controls too far clockwise and or engaging the loudness bass boost button on your receiver or some com
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