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Headphones are Paired and Connected, but there is no sound.


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#1 suite210

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Posted 05 September 2015 - 02:30 AM

Ref: Sony sony MDR-ZX770BN-Headphones

On my Computer (windows 8.1 Pro 64 bit, Under Manage Bluetooth Devices it shows that the MDR-ZX770BN headphones are Paired and Connected, but there is no sound.

When Headphone cable is connected to headphones, they work with sound.

What else can I do to get the MDR-ZX770BN to work, with sound?

Thanks ... Tony Brocato



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#2 technonymous

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Posted 05 September 2015 - 03:09 AM

Try deleting the device and pairing it again. Check if the Bluetooth services are running. Go to start and type services.msc search for Bluetooth. They should be running. However, they may not. Change them to automatic and start them if they are not started. I found the procedure to pair the headphones maybe you missed something. https://us.en.kb.sony.com/app/answers/detail/a_id/55026/~/pairing-and-connecting-with-other-bluetooth-devices



#3 suite210

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Posted 05 September 2015 - 02:31 PM

Thank you so very much for your advise, it was most helpful.

 

Even the Sony tech support guy did not mention turning on the Bluetooth items you told me to.

But, still no sound, there is still a problem. I can't set the Bluetooth headphones as the default device.

 

I got to the playback devices by right clicking the speaker symbol in the lower right hand corner next to the time & date.

I then  clicked on playback devices. I went to Bluetooth headphones and tied to set the Bluetooth headphones as the default device. It won't let me do so.

 

All the Bluetooth you told me about are turned on. 

 

That is where I am at now. Do you have any other advise?

 

Thanks again,  Tony ... :o)



#4 technonymous

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Posted 05 September 2015 - 08:41 PM

I suspect the driver for the headphones are not compatible and the Sony website says there is no drivers. I don't have a bluetooth headset so I am flying blind here.

 

1. Go back to services.msc be sure both 'Bluetooth Handsfree Services' and 'Bluetooth Support Service' are set to run automatically. Go to run and open devmgmt.msc and uninstall the bluetooth driver. Now go to run and open regedit and navigate to...

 

HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows NT/CurrentVersion

 

With CurrentVersion selected over on the right pane look for (ab string) CurrentVersion.  Right-click CurrentVersion and choose modify. Change the value from 6.3 to 6.2 Close out all the files on the right pane and close the registry. Reboot the system and reinstall the bluetooth headset.

 

If that still doesn't fix the problem then there could be unfroseen damage to files. Reverse what you did in the registry above back to 6.3 Once that is done go to run and type cmd right-click runas admin and type sfc /scannow. Be sure to do Microsoft updates as well. I am speculating that the headphones worked in Windows 8, but now not working with 8.1 I am surprised Sony doesn't have a solution to this problem. Have you thought about upgrading to Windows 10? I thought I would never hear myself suggest that. lol However, I am speculating that Windows 10 would have to have much better Bluetooth support because Windows 10 according to Microsoft will run on anything or has plans to have it run on smaller hand held devices. You can't accomplish that without having better support for sdcard/micro-sd, usb/micro-usb and blueooth/wifi etc. It would be a coin toss, but you would have the latest OS for free and can reverse it if need be. It seems you have gotten a hardware device that got caught between the phase of many OS upgrades. You may ultimately have to buy a new headset. :unsure:



#5 suite210

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Posted 05 September 2015 - 10:42 PM

Hi technonymous,

 

I am 78 years old. My computer skills are about 2 on a scale of 10.

 

I will copy and paste you emails, print them and take them and my computer to a friend that repairs computers, and have him take a go at it.

 

But, I really want to thank you for all the time and advice you have gave me.

 

You are a good person, thank you, and may god bless you. 

 

Tony ... :o)






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