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How do i open my onix at9-014 to change the headphone jack

Only one channel works and still shows headphone icon after unplugging.

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Posted on Jan 02, 2017

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SOURCE: Headphone Jack

if you can get into it easily you can re-solder the point at which the contact is broken off the board. This is a common problem. If  you do not know how to solder, or are not good at opening these (it will void any remaining warranty) refer it to someone locally that does.

Posted on Oct 28, 2007

  • 121 Answers

SOURCE: Marantz SR7500 headphone jack stopped working

There is a contact inside the jack that is closed when the plug is inserted. Apparently this is no longer happening. This should be an easy repair for a qualified technician.

Posted on Feb 26, 2009

  • 249 Answers

SOURCE: Headphone jack only broadcasts through the right channel

check the sttings of the TV.

Posted on Jul 12, 2009

  • 106 Answers

SOURCE: my headphone jack on a HP computer is not working

first configure the front panel sound in control panel (start-> control panel )
even u have the same problem after configure the front panel,then check the wire connection of front panel.

thank u sir... Have a nice day

Posted on Apr 17, 2010

  • 1284 Answers

SOURCE: i have a 50" samsung

You would need to replace the headphone socket then and if I am correct it should be mounted to a plug in board. I first need the model number of your Samsung to look up the part number. The model will be on a sticker on the side and will be something like HTP50***/XAA or something like that.

Posted on Sep 02, 2010

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2 Answers

The speakers no long produce sound after using the headphone jack,,disconnected jack , still no sound

When you plug in the headphones, the jack itself routes the signal away from the speakers. When you unplug the headphones, the jack has contacts that close again, routing signal to the speakers. If the jack contacts are dirty, they won't close correctly. I suspect were you to clean the contacts, you'd solve the problem.

Feb 25, 2015 | RCA Rt2760 Home Theater Receiver

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Same problem as below, I have the Denon AVR 790 and the sound keeps switching to headphones. Blowing into the socket did not help. Both unpluging the AV and putting the headphones in and out fix's the...

The unit thinks there are headphone plugged in even when there are not. You need to have the headphone jack replaced. This is a common problem with this model. Another way to fix it if you don't plan on using the headphone jack is to unplug the cable going to the headphone jack board. This will disable the headphone jack, and stop it from sending an erroneous signal to the micro.

Jan 31, 2014 | Denon Avr-790 - 7.1 Channel Home Theatre...

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The Sound has stopped working on my telly

if you have sound from the headphone jack the sound circuit is good--audio headphone jack when inserted cuts off internal speakers--it could be 3 days old and have a problem with the jack.

Jun 07, 2012 | Televison & Video

1 Answer

Headphone jack not working


I find that there is a problem with your headphone speaker.
Try with some other headphone, even if it is not working, then you need to take it to the service center.


Jan 10, 2012 | Acer Computers & Internet

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The unit is on but will need produce sound. I have reset the unit and it tells me phones in on the diplay. I am not sure what that means as it is not mentioned in the manual. Just need to troubleshoot...

It thinks have headphones inserted. Do you? Remove them.

DID you have them plugged in just prior to this problem? If so Turn the volume down and insert and remove the headphone plug a number of times to wear off the probbaly oxide build-up on the normally closed contacts.

Mar 03, 2011 | Pioneer SX-315

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Initially the main speakers would not shut off when the headphones were plugged into the headphone jack. I reset the audio settings to the factory default. Now the headphone jack does not work. How do I...

If you right hand mouse click on the louspeaker icon, click on open volume mixer.
You can set the headphone volume and speaker volumes from there. (depending on your OS and set up preferences)

Nov 17, 2010 | Toshiba Tecra 8100 Notebook

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Pioneer A110 Amplifier - quiet right channel.

> squirt some contact cleaner into it
An appropriate suggestion with one caution; look for a statement on the cleaner label that it will not harm plastics. I have seen some plastics not dissolve, but crack and disintegrate, along mold lines in particular. If you find no such statement use very sparingly and try to prevent over-spray.

Feb 24, 2010 | Audio Players & Recorders

1 Answer

My amp is not outputting to the built in speaker. I can get output to headphones and have proved it with both guitar and ipod but neither work to the speaker.

Possible problem with teh switch on the headphone jack wooould be my guess. When you plug in the headphones it opens a switch to disconnect the speaker. Unfortunately, these jacks are weak and often the switch fails to close when the hedphones are unplugged.

You need to open the amp and check if you can close the contact by pressing on it. There are several designs of these jacks and MOST are weak and having a cord plugged in and tripping over it is SURE to break the jack.

Here is a site showing jacks for a Fender, but most are similar.
Look at the one with several strips of metaal between the little black walls... they are NOTORIOUS for the switches not working. OFTEN you can bend the springs tigter to restore them. The site with pix in a box at the top:

Dec 19, 2009 | Marshall MG10CD 10 Watt Combo Amplifier

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