Question about Sennheiser HDR 120 Consumer Headphones
I have had 2 sets of these headphones and stands. Everything worked fine with them for a few months. Now the red light goes on when charging but the green light no longer goes on and there is no sound to the headphones (besides static). The sound is set correctly and I even turned it way up, the channel is right but still nothing.
Posted by Anonymous on
Can you remove the rechargible batteries ? To try and reset them ? Or maybe replace them ? It sounds like the batteries have gone bad and not charging
Posted on Nov 12, 2017
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Posted on Jan 02, 2017
A replacement battery can be purchased from Sennheiser for $20.00.
Battery is: BA 151
Posted on Jan 15, 2009
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).
Note: The automatic level control only functions if the volume of the
sound source is sufficient.
Posted on Apr 02, 2009
SOURCE: There in no green light
The green light only comes on when it is receiving an audio signal.
Standard batteries will work.. if you NEVER use the charging station.. and plan on replacing them every x number of hours used.. IMPORTANT.. if you forget.. and place the headset on the charging station with standard batteries.. they will probably rupture.. and may well ruin the headset..
If you decide to replace the chargable batteries.. make sure you replace them with the right size and type..
Posted on Apr 24, 2009
Two things.. Check the batteries..
Also.. since these headphones have to have a signal sent to them to activate transmission (green light simply indicates they are receiving a signal) it can take a few moments after the signal begins to activate them.
I would hazard a guess that when you unplug the cables and then plug them back in.. the feedback that generates activates the base much the same as a regular audio signal would
Finally.. make sure the source is a fixed output.. if not.. and its variable..you will have to increase the output or volume to activate the base..
Posted on Apr 24, 2009
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.
Posted on May 02, 2009
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