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We have a Sennheiser Diversity Receiver ew 100 and when the wireless mic is off the noise line is on the AF and makes alot of staic until you turn the mic on then it stops. How do I fix this?

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Hello! Turn the unit on and push set on the receiver then push arrows until tune comes up, raise or lower frequency of the channel until the noise does not appear in the meter, push set to store settings then push power button to return to normal. Then take the mic and turn it on, push set then push arrow until tune comes up then push set and then set the channel the same way you set the receiver. P.S.. The receiver is locking on to a rouge frequency that is what causes the noise. Went you turn the mic on the receiver locks on to the mic and the noise stops.
Hope this helps you to fix the problem.
Steve

Posted on Jan 21, 2009

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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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The receiver is speced at 32 ohm drive... IF your ear buds are less than that impedance, they are NOT suitable. Conversely if they are too high, thaat will ALSO cause you to turn up the receiver gain too much and result in poor SNR.

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If the red button is not inside, they are available as a spare part from Sennheiser dealers.

Be carefull when putting the mic back together, it needs to line up correctly with the internal guides, forcing the base back on could damage the ribbon cable. when the line-up is correct it slides on very easily.

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