Question about Polaroid FLM-3734B 37 in. LCD HDTV
The speakers in my TV are making a buzzing noise. I have tried replacing the speakers, but nothing changes. I have also disconnected and reconnected the speaker cable under the main power board. Still no change. What is wrong? Thanks.
Posted by Anonymous on
Try a reset to default settings. If that does not clear it I would suggest that it is either a hardware fault or interference
A constant buzzing might be interference from the power control card. What happens if you move the set elsewhere. Also, try it on another aerial, maybe there is a problem there....perhaps
Posted on Jun 17, 2015
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Posted on Jan 02, 2017
There are likely to be many poor connections in the power supply section that are causing this. If you can solder and the unit is no longer under warranty, you can try resoldering any connections that appear grainy or have rings. That may resolve the problem. If not, than one or more capacitors have changed value enough for the internal circuits to mal-function. This will take some test equipment to locate easily. Try resoldering first and update this with the results. I'll try to locate the most likely parts that could cause this.
Posted on May 01, 2009
If the noise is coming in through the onboard tuner then repair may the only option. If you have a DVD or VCR and can connect the line level inputs (look like stereo connections) then do so and use that input, if the sound persists there then it is likely the audio circuitry - also a repair item.
Bypassing the TV sound system involves connecting your cable box, DVD or VCR (using the tuner from that unit select channels) audio output to a stereo system and then the TV becomes a big monitor (picture only)
Posted on Jan 03, 2010
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