EST1076 1 Pair DC12v / 24v Truck Car Horn Replacement 510Hz 110DB Dia 80mm 3.7A
Brief details:
voltage: 12/24V
Current:≧3.7A
Sound Level:100-115 DB
Frequency: H:510±20 L:410±20
Dia:80mm
Common faults:
First, easy to be affected with damp be affected with damp untight seal: although a speaker is airtight, but if the untight seal when washing the car into the mist or internal space have water vapor in the air, water vapor could easily lead to contact be affected with damp be affected with damp not work properly.
Second, the electromagnetic coil terminal poor contact: some speakers inside the electromagnetic coil aluminum enameled wire terminal connector is metal rivet connection, pressure to the stable welding connection, if not end the insulating paint on the enameled wire processing net or rivet unreliable pressure to easily create virtual fault, lead to bad speakers work.This kind of fault is due to the quality of the horn, which cannot be repaired, only new parts can be replaced.
Three, contact ablation: if the horn of the speaker for a long time contact impedance ablation, flows through the electromagnetic coil current is abate, electromagnetic suction falling cannot attract armature drive diaphragm normal vibration, lead to sound hoarse, even not ring.However, when the speaker is constantly pressed, if the instantaneous strong current can still work normally through the impedance, it will be good or bad.
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Shipment Way:
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