Question about Sharp LC46SB54U 46 in. LCD TV
Hello sir, Hi, No Audio on your TV can be user error or Hardware error, for the user error, make sure that the TV is not set to low volume or the setup is on MUTE, for the hardware error, Place your ear close to the speakers, then set the volume up and down several times, you should hear a soft hum that goes up or down, (make sure that the room is quiet.) The soft hum means that the power amplifier is working properly. so the problem may be on the main board where the sound is being produce before amplification, usually the sound IF section. NOW if you did not hear the soft hum, problem with the amplifier and speakers, A physical checking for open wire contact or loose connection is needed.
Posted on Aug 23, 2010
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Posted on Jan 02, 2017
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