Question about Samsung HCJ552W 55" Rear Projection Television

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Audio issue Can you help me figure out how to fix the humming that is coming from my speakers. The problem just started. My basic instincts told me to look for a loose audio connection to my stereo. However, all connections look good and the TV speakers humm when the stereo is turned off. I can still listen to the TV but it has to be at a higher volume to drown out the humming. Thanks for your time.

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Based on your post description:
1. The humming sound is heard with or without external amplifier/speaker;
2. then the source is your TV's audio out. It is also present in your internal speakers which just confirms that it is an internal fault;
3. normally, humming sound in the audio is caused by loose grounding which should not happen since it is internal.  The next likely possible source is a defective power supply (to the audio amp). Often it is a capacitor that dries up, have blisters or have lost its capacitance.
4. In some instances, it could be stray AC component from your signal source such as your cable TV.

You would need to open your TV. It is also important that you be familiar with electronic components and circuitry, soldering and the use of a VOM.  Should this be not comfortable for you, perhaps your best bet is to seek the services of a qualified technician.

Hope this be of some help/idea. Good luck and kind regards.

Posted on Oct 23, 2007

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Unplug the rca cables from the TV to the stereo does the hum go away?



Posted on Oct 23, 2007


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