Question about Philips 42PF7320A 42 in. Plasma HDTV

1 Answer

Sound cuts out

We originally bought the previous version of this TV last Nov. and returned it several months later when the sound started cutting out. It would just go out at random times and the only way to bring it back was to turn the set off wait a minute and then turn it back on again. We returned it because of this problem and we were given the newer model of the same set. The exact same thing is happening. Is there a problem with the set or with the wiring at my house? Before we had the Philips we had a smaller set and there was no problem with the sound. I have done an Internet search and I do see other talking about this problem. Ideas?

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1 Answer

Go to philips.com and enter the model. Find and install the easy software upgrade.

Posted on Sep 03, 2007

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1 Answer

Why did the sound cut out while watching TV?


Could be a number of things: Inadequate ventilation; running with a small wiring short somewhere; speaker Ohms rating too low for the receiver. These are just the main ones to check.

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Bose 321 series II giving very dull sound in all inputs. Occaisionally the sound cuts and comes back with full and bright trebble, but then cuts back to original dull sound. I cant see anything the ad


Try the following:

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2) Switch the unit back on via de switch on the bass box.
3) The display should read BOSE 321 and than be dark.
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I have an ONKYO HT-S3305 which transiently 'cuts-out' the sound - lasting only seconds (hooked up to TV/satellite HD receiver) Seems to start after about 1-2 hours after switching on. Not the signal...


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This will be a very tricky thing to track down. So maybe best to take it to an authorised service agent.

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Tv cuts itself off after about 2-3 minutes


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Sound cuts out every so often when using Coax Digital In


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Sound cuts out for long periods of time


I have had the same problem. Only differance is that I run a freeview box though my 940 mw. I thought it was that playing up. Also I all the keys are locked on the unit itself. The remote works everything but when I press any buttons on the monitor you get a 'keys locked info' up on screen. Its doing my head in!!!

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1 Answer

No sound


Hi, Probably you first have to determine if the "no sound" is the TV or your source (cable box). Try another source such as a DVD player hooked to the audio/video inputs of the TV, if still no sound then you have confirmed that it is the TV, if there is sound, then it is the cable box (in some cases it may be just the cables connecting the cable box and the TV; try wiggling it a bit, might just be loose). If it is the TV, go through the routine of the setup/menu; look for audio, stereo, SAP, etc, try different settings (pls log down original setting in case no change and you have to revert back). If all else fails, try the "thump test" this will help you determine if its a loose/cold solder problem inside the TV. Give your TV a good whack at the side, top or back, if sounds comes on even briefly, it's a loose/cold solder problem, if not then you probably have to have the unit serviced by a qualified professional. Good luck and kind regards.

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1 Answer

Sound cuts out periodically


You need to have service on the set, the audio portion on the main board is going out

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