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Mute switch stopped working. Help please.

Sennheiser ew100 wireless transmitter. Mute switch used to work fine. Now does not mute when switched on.

Posted by Anonymous on


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Apply a couple of drops of contact cleaner into the switch area. Just a couple!!!

Posted on Apr 03, 2015


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Try to get a one track sound mixer and your problem will be solved.

Posted on Mar 11, 2015


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SOURCE: on/off button broken

You should'nt need a scematic, this happens all the time with the ew100 handhelds. you will need to remove the three star bit screws between the screen and the batteries, pull off the end cover and with a small screwdriver or some long needle nose pliers- put the red button back into the hole from the inside of the cover. Just take care when putting the end cover back on- sometimes its a bit difficult.

Posted on Apr 02, 2009


  • 608 Answers

SOURCE: Microphone doesn't work on Logitech ClearChat

If the mic mute switch is not on and there is no red light in the mic arm then its likely you have a check in the 'mute mic' box in your sound manager. Open Volume control, choose options->properties-> recording. Check for checks in the boxes and remove them. Also make sure the slider for the mic is about half way up.

Posted on Mar 19, 2010


Tom Carson

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SOURCE: AKG PT 80 transmitter stopped transmitting.

So that means the microphone has a problem with the strength of it's signal, which means it has to be serviced. Not sure if it's cost effective, make sure you get an estimate if you choose to have it serviced. Often, it's better to just buy a new one, unless you can fix it yourself.

Posted on Mar 31, 2010


  • 611 Answers

SOURCE: on/mute/off switch on shurepg58 wireless mic will

It sounds like it needs to be sent to Shure for repairs.

Posted on Aug 12, 2010



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SOURCE: I have an ew100 wireless

There should be 2 MUTE buttons, one on the mic transmitter and one on the body pack transmitter.

It sounds like one of them is on all the time.

Otherwise it may be that your SQUELCH setting is wrong. Try adjusting that to between 5-15 db.

Here is a link to the Sennheiser Online Support FAQ page about squelch problems but the detailed instructions should be in your User's Manual.

And here is the Main support page for your EW100 unit:

and here is the direct link to your ONLINE USER'S MANUAL:

Sometimes the MUTE is displayed when the receiver is not getting any radio signal (see page 8 and page 22 of the online user's manual). Again try lowering the squelch.

Good luck and please comment back and rate if this was at all helpful.

Posted on Feb 13, 2011

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for any of you as unlucky as i to have to use these onstage..(ok their fine we just have the wrong mics) a piece of tape over the mute button on top of the unit...they have a tendency to get knocked into mute position mid song...

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1 Answer

Sennheiser ew135 mutes at random moments during a show and it also displays MUTE on the LCD screen. Any solutions would be greatly appreciated. Thanks!

It sounds like wireless signal problems...the receiver will mute when it loese signal from the transmitter (mic).
1. Raise the receiver up higher in the performance area.
2. Stay within the recommended range/distance stated in the owners manual.
3. Read "If a problem occurs" section of owners 31 "MUTE appears on display panel." For some reason I can't link the owners manual here, but sweetwater music has it at the bottom of the Sennheiser ew135 sales page.

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How do you take it off mute

Are we talking about squelch or mute? subset called 'X-TRA', which gives access to squelch settings.
Mute... three-position slider switch is used to power transmitter on/off, and has a middle position, which either acts as mute switch (when you switch from On to Mute) or switches the mic into programming mode if you start from the Off position.

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I feel that the 'normal' background hiss is a problem that I would like to minimize with the sennheiser IEM 300. I'm currently using the IE 4 ear phones. Would a different/better earset with maybe a...

No, that will not help. The his is a function of the receiver NOT receiving a signal from the transmitter as they apparently do NOT have a "squelch" circuit to mute the receiver noise when no signal is being received. The noise level when no signal is received is pretty high and apparently the volume control is not enough to reduce the hiss.

To solve this, LEAVE the transmitter ON and make yourself a switch at the receiver. DO this using one of those little in line lamp switches that fit on zip cord. Make one on a short length of zip cor with mating connectors to fit the received jack and the headphone plug. Don't worry about unshielded wire as the impedance is very low. Then you use this switch to mute the headphones when you want to. There are other switch types you can use, I am just suggesting what might be readily available to you.

Sennheiser SHOULD have include a mute switch on their unit as turning the power off on the receiver would be a pain. They could have used a volume control with switch to kill the audio line out... simple solution... oversight on their part.

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To get your transmitter out of mute press the standby button and hold it briefly until "RF Mute Off" appears. Your display should change from red to orange and the transition icon will also be displayed again. This indicates your transmitter is transmitting.
Regards, Tony

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You must use a compatible transmitter, not just any old one on the right frequency.

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Broken On/Off Switch

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