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Need Sennheiser TR130 help
This thread has 8 replies. Displaying all posts.
Post 1 made on Saturday April 5, 2008 at 17:13
Ernie Bornn-Gilman
Yes, That Ernie!
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30,104
A client has a pair of Sennheiser RF headphones, TR130, that simply appear to be dead, and I was wondering if any of you can confirm what I'm finding. Actually checking the audio wiring is a MAJOR pain as a cabinetmaker completely did not understand how to make a cabinet for components. That's another subject, but it leads me to ask if I'm correctly interpreting what isn't happening with these headphones.

They stand shows power. It shows charging. The batteries read about 2.9 volts when the thing is turned on, which indicates that they are charged and can deliver whatever current the headphones require.

But I get zero sound. Not only when an audio source plays, but also when I hit the TUNE button to tune around. You usually get static from being near but not quite right on the right frequency, but again, zippo.

Am I right that these are just plain dead? They're only a couple of years old and have not been mistreated at all. In fact, they've been used so little that the only question I had was whether the batteries are any good, and they are.

Thanks for any experience you might be able to share.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 2 made on Sunday April 6, 2008 at 05:15
Brent Southam
Founding Member
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December 2001
352
possible that the base station is not getting any signal....or transmitting dead-air...

have you been able to confirm signal to the basestation? It usually has an indicator light that says it's getting signal or not.
Post 3 made on Sunday April 6, 2008 at 05:22
theKevin
Senior Member
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1,475
if you're not even getting a static/crackle sound, the batteries may not be as good as you think.. my best bet is get a new sony wireless headset and try it in place. if that doesn't work, you can always return them. most likely the set your using has an old battery, even if it is reading 2.9v on the multimeter. try testing the current. not sure what it should be, but these batteries don't last for years, especially if they're not used much. just put an old JVC and a new Sony wireless headset in the same rack, the sony has about 5 times the battery life of the JVC that's just 2 years old.
Artificial intelligence is no match for natural stupidity.
Post 4 made on Sunday April 6, 2008 at 11:29
WhiteVan Lifestyle
Loyal Member
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July 2007
5,108
Ernie,
I think you're going to have to pull the cable to troubleshoot. Sennheiser makes great product that I so far have found to be bullet proof. I have a few hearing impared clients whom use these and I am yet to see one break. I may have an extra cable for that base station if its just too hard to work with what you currently have.
Safe 'n Sound Central Coast CA www.mysafensound.com [Link: facebook.com]
OP | Post 5 made on Friday April 11, 2008 at 03:08
Ernie Bornn-Gilman
Yes, That Ernie!
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30,104
TheKevin,
I made a point of measuring the battery voltage when they were out and when they were in with the thing turned on. It dropped only millivolts. Bad batteries would have dropped quite a bit, with internal resistance limiting the current available and lower output voltage being the symptom of that.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 6 made on Tuesday May 6, 2008 at 18:36
StevenCraig
Lurking Member
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May 2008
1
Ernie,

I've had the exact same experience with a pair I bought last November. At first I thought I had a bad set right out of the box, but found out that I had to have the headset on the cradle before plugging into the TV (yeah, doesn't sound right). Then the connection between the TV and the headphones would die during a commercial, which i solved by disconnecting the phones from the TV.

Now they just plain don't work. No static, no nothing. Looks like it is charging, but no green light when connected to the TV. I have changed batteries, but no luck there either. And yes, confirmed that the output jack is hot with a couple of wired phones.

Sorry that my experience did not help you, but thought I would share my experience anyway.
OP | Post 7 made on Tuesday May 6, 2008 at 19:21
Ernie Bornn-Gilman
Yes, That Ernie!
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30,104
I see that I didn't come back here to tell you they weren't bad, after all. The client had a house guest. The house guest thought he knew what he was doing when things didn't work right, and managed to change the settings on the Denon. In particular, when I finally got to looking at it, the REC OUT that I was using for the headphones was switched away from SOURCE and set at PHONO. This wouldn't ever give him any signal, so the headphones would never switch on. I reset it and all is well.
On May 6, 2008 at 18:36, StevenCraig said...
Ernie,

I've had the exact same experience with a pair I bought
last November. At first I thought I had a bad set right
out of the box, but found out that I had to have the headset
on the cradle before plugging into the TV (yeah, doesn't
sound right).

I don't understand that from an operating standpoint, but they have rechargeable batteries that you can expect to be discharged right out of the box. I think the instructions tell you to plug everything in for several hours before attempting to use them.
Then the connection between the TV and
the headphones would die during a commercial, which i
solved by disconnecting the phones from the TV.

The couple of pairs I've got stayed on for a couple of minutes after losing audio, so I don't understand what happened in your case.
Now they just plain don't work. No static, no nothing.

That's what I got when no audio went into them. Not even static. Now, if you have described exactly everything that you did, which is always necessary when trying to communicate technical situations, this makes total sense. You disconnected them from the TV, so there's no sound. I don't understand how that solved anything at all, since that gives them no audio input, so I'm guessing some steps are missing from your description.
Looks like it is charging, but no green light when connected
to the TV.

Ah. It IS connected to the TV. Something is missing between you disconnected from the TV and that solved the problem, and they are connected to the TV. Lots of details need to be put into that gap.
I have changed batteries, but no luck there
either. And yes, confirmed that the output jack is hot
with a couple of wired phones.

That would have solved the problem in my case.

Did you try changing channels? I thought the channel switch was a rotating knob, but it's not -- it's a push button that toggles from 1 to 2 to 3, and takes a few seconds to auto-fine tune on the frequency. Try changing the frequency and waiting five to ten seconds between button pushes to see what happens. Hmmm. You'll have to have the audio light on for that to work. I forget -- is that the green light?
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 8 made on Monday September 19, 2016 at 12:04
Stealth
Long Time Member
Joined:
Posts:
December 2003
72
I know this is an old thread, however I have had the same issue today with no sound at all. Believe it or not resetting the headphones using the advise in the manual worked and they came back to life, just as I was ready to bin them.

Reset instructions-

Reset the system:Remove the rechargeable batteries from the headphones and –at the same time – interrupt the power supply of the transmitter for at least 30 seconds.
OP | Post 9 made on Tuesday September 20, 2016 at 10:18
Ernie Gilman
Yes, That Ernie!
Joined:
Posts:
December 2001
30,104
Well, that's DAMN helpful! I never saw that in the instructions!
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw


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