Question about Philips 37PF7320A 37 in. HD-Ready LCD Television

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No Sound Very suddenly (overnight) our Philips 37 Inch HDTV has no sound. The mute is not on and nothing was changed during the last viewing. The picture is great, just no sound. Please help...

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Re: No Sound

Check the firmware and if it is not BX23U- go to and download the firmware onto a USB stick. If the sound still drop out replace the small signal board.

Posted on Aug 20, 2008

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Why is there a beautiful picture but no sound and cannot change input?

Re the sound, make sure that the mute switch is not on.

Re the input, did you try changing input at BOTH the tv and remote controls. Could be the remote source button is not working.

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It possible but unlikely that your speakers are bad. First what you want to do is try to see if its not the source. IE cable, dvd, bd or video game. Try replacing wires.

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My insignia 37 inch tv

Press menu and use the up or down arrows to find the audio section adjustments. Press the right arrow and again use the up and down arrows to find tv speakers, Press the right arrow to either turn on tv speaker or turn them off ( This is used only if you are using the output signal from you tv in to you stereo input to have surround sound.) Turn them on to listen to sound from the television speakers only. If this does not solve your problem, Press the mute button on you remote control to release the mute function. If all this does not work the telephone number for Insignia is 1-877-467-4289. Talk to them about you problem and see if your television needs some type of service to restore the sound. Hope This helps you with your problem.

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1 Answer

Samsong 37 " lcd no display only sound

I think it the main logic board!! I have 42 plasma samsung doing the same! change that works!! cost $124~~

Mar 23, 2008 | Samsung HP-R4252 42 in. Plasma HDTV

1 Answer

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I have a Mintek lcd/dvd combo which when turned on , comes on with picture and sound but the picture goes off in about one second. I removed the back and can see that the back lighting is going off. I measured some voltages at a terminal strip that i believe provider the back lighting for the set. The results seemed to be normal to me. Can you suggest where I should look further.

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