Question about RCA WHP140 Consumer Headphones

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Sound cuts out

I have my headphones hooked up to my computer with the transmitter close by. The sound is clear and good but when the audio volume lowers such as a soft section of music or a silent moment in a movie I get a blast of static. I have minimized this some by jacking into my speakers and turning the volume way up. This works alright for a movie when the audio is continuous, but when I am listening to music, the pause between songs will always trigger this. The audio will not return unless I turn off my desktop speaker and turn it back on. Turning off and on the transmitter base works rarely. I can't find my model number on RCAs website, this worries me.

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Re: Sound cuts out

Hi Sirxon,
My headphones are not RCA, but are wireless like yours. I get this symptom when my batteries get weak. Using a volt meter, you can test the batteries voltage. They need to read at least 1.2 volts each. Check the connection from the base to Headphones. My headphones do not have a physical connection, and if I place them in the base backwards, my headphones do not charge. It may be time to get you some new rechargeable batts. I hope this helps you.

Posted on Nov 03, 2007

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I have a huge problem with these headphones (the Sennheiser HDR 120)... and my wife bought two of them... They have great sound on the computer, but once the green light turns off on the base? There...

The volume of the sound source (Mac) must be sufficient, otherwise the transmitter automatically turns off. Turn up the volume on the Mac, and turn down the volume on the headphones. There is no way to disable the Automatic On/Off function of the transmitter.

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The sound keeps breaking up the green light goes out and there is a terrible hissing sound

I know this is a bit late but i had the same issues with my unit. turns out if you listen with the source volume really low the headphones cant detect sound so they shut off. you fix this by simply adding more volume from the source and then just decrease volume on the actual headphones to obtain desired listening level and say goodbye to this issue.

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The sound quality from an HDtv could very well be better than from a lesser-quality TV. The sound from the headphones can only be as good as the signal that feeds it.

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Turning the transmitter on and off (Fig. 5)
Turn on the sound source. This automatically activates the
transmitter and the green LED “ON/OFF” lights up. If the sound
source is turned off, the transmitter is automatically deactivated
after approx. 3 minutes (the LED “ON/OFF” goes off).
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1 Answer

Audio from tv is not restored by turning off power on headphones

It sounds as if you are plugging the base into a standard headphone jack located on the Television set.

RCA Headphone jacks (incl mini) automatically stop the sound output to the main speakers on almost every set I have seen.. or home stereo.. etc etc

In other words you can take a standard RCA jack.. with nothing connected to it.. plug it in while the music or sound is coming out the main speaker.. and it will cut off the output to those speakers..

If you set has audio outputs on the back.. preferably Fixed Audio Out .. you will need to connect your base unit to those.. turn your set volume to 0 and adjust the headset volume using the control on the right ear-cup.

If you have variable audio out.. you will need to go into your TV sets setup menu.. turn off the speaker.. and turn up the set until you achieve a signal and decent volume through the headset.

If you are missing these connections.. your current “work around” is your only solution.

Best of luck

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I had the same problem when I plugged it into a new HDTV. The problem was that the sound on the TV was set too low. The transmitter has a feature that automatically turns off when the signal is off or too low. Try turning up the TV volume to a high/higher level and it should solve your problem. Using the headphone jack with the white input allows you to use the headphones while bypassing the TV speakers.

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Hi I had the same problem and just emailed Sennheiser.Go to the menu on your TV and change the variable audio output to fixed. I use the headphones through the home theatre so the volume must be max on the home theatre and then you can adjust your headphone volume. It absolutely worked and I don't get anywhere near the static noise when I go to another room with the headphones on that I got previously. Also be sure your audio cable is plugged into the fixed audio output socket. I did not have to do anything with that.

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