DESKTOP PC AUDIO OUT NOT WORKING REPAIR GUIDE
Today I got a new challenge from a customer. His desktop PC will not play any sound anymore. After I try to connect my headphone jack to the audio out port on the PC it wont go enough deep into the hole, just half a way. Hmmm this is strange. I inspected the inlet of the hole with a lamp and I saw something was stuck but too deep. I tried to reach the jammed part with different tools but no chance to come close to it and get it out. Therefore, I decide to change the audio connector.
I took out the motherboard from the PC case and lift out the RAM and the CPU. The reason why I took out the CPU and RAM is that the possibility of electrostatic discharge until I work around the motherboard is high.
ATTENTION!
Whenever you do some job like soldering on the motherboard, take care of other parts on the board and avoid getting electrostatic discharge. On the motherboard are very sensitive parts, if electrostatic discharge comes across the board they could be damaged.
I done the desoldering with my ZD-915 desoldering station. My best advices to you, if you have no desoldering station then do not try to take the audio connector from the board because, probably you will destroy the board. It must not be but, from my experience, this connector as other too, can’t be removed with a classic soldering iron and a mechanical vacuum pump.
Now, when I removed the soldering lead from the legs of the connector I took a screwdriver, carefully – gently pushed under the connector, and pushed the connector up.
Be carefully how deep you go under the connector with your tool, because around the connector are small components and there are wiring too. If you go too deep with your tool then you can destroy the wirings or around the small resistors, capacitors…
Take care with the soldering temperature too. I used 480 Celcius for desoldering and for soldering is 330C but very short time. Otherwise, you can burn the board, solder bad connection or overheat the board and in most case, the circuit layers will separate. I got another audio connector from an old used motherboard and replaced the defective connector with the used one.
After repairing I turn on the PC and made some nice noise. I mean, got a cup of coffee and listened some good music from YouTube. I hope this article will save lot motherboards from junkyards.
This article was prepared for you by Christian Robert Adzic from Novi Knezevac-Serbia
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16 Comments
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dicksy
May 16, 2015 at 5:47 pm
what a nice article.
thank you
Paris Azis
May 16, 2015 at 7:58 pm
Hi Christian,
Good job!
Regards
Anwar Shiekh
May 16, 2015 at 10:12 pm
I recently replaced a broken USB port on a mother board, and agree that such swaps are not easy with a normal soldering iron, probably because of the lead free solders high melting point and the copper ground planes taking away heat. I used traditional solder for the replacement.
Robert Calk
May 17, 2015 at 7:54 pm
That's true, Anwar. The way I did it was to use my de-soldering gun to suck up the excess solder, then I used my Hot Air Rework Station to get the USB connector free. That is the best way that I have found.
Ehsan Murad
May 16, 2015 at 11:09 pm
Very good tips. I will be more careful now.thank you.
Amr
May 16, 2015 at 11:37 pm
Nice article, got good information.
Thanks
Mark
May 17, 2015 at 6:23 am
Thanks Christian,
A well documented article. I appreciated the red boxes to highlight the areas needing attention. You mentioned some good tips to keep in mind. Those pesky little SMD's hide everywhere!
Robert Calk
May 17, 2015 at 7:04 am
Good job Christian. It would be nice to see a photo of the PCB actually repaired though.
Yogesh Panchal
May 17, 2015 at 3:16 pm
Good attempt on repair thanks for sharing.
Ferdinand
May 17, 2015 at 10:54 pm
Thanks a lot Christian for a kind sharing to us...God bless.
Edouard Saint-clair
May 18, 2015 at 6:46 am
Hello Christian! How are you? I rather believe that the whole desoldering and removing of the part was probably too hard compared to pushing the obstructing piece out in a reverse way. The fact is, we can get access to the opposite side of the port case, unlatch the cover and, by means of a pointy, long and skinny tool, manage to push back the masking object. Anyway, I really appreciate your valuable posts and references, which I find to be very helpful. Keep up the good work!
Gopal Sharma
May 18, 2015 at 2:38 pm
Good job Mr. Christian Robert Adzic. I had also replaced audio jack and VGA port form one motherboard successfully. But replacing audio jack is very risky as there are few smd components placed nearby may fall off the board. It is better to remove nearby smd components first then replace the jack. It will be safe.
Humberto
May 18, 2015 at 11:32 pm
Good job, it's a risky one, but finally the MB was saved from the dump. Congratulations
Chris
May 20, 2015 at 3:05 pm
Edouard Saint-clair:
you alright but in this case pushing out the peace was not possible because of the housing type of the audio jack. To dismounting the audio jack housing on this MB is impossible until you cut the legs which are soldered on the motherboard. After cutting the legs you can strip up the jack housing. No other way on this type of jack. But you fully alright and it is a good advise too of course.
Gopal Sharma:
Removing all the small smd parts are risky because you have to apply more heat to the mobo. With the desoldering gun it is pretty easy and safe.
Thank you all for your comments and for supporting my articles.
reza
May 21, 2015 at 2:27 pm
hi dear Christian Robert
thank u for sharing this article.
Amir Mukhtar
May 22, 2015 at 5:42 pm
thanks you mr. Christian Robert Adzic to share motherboard repair experience.
Thanks you
However, i do use wrist band to protect electrostatic discharge when repair proceed on digital equipments especially, for Low volt electronic devices except CRT , Power supplies and high Voltage devices.
thanks you
Amir Mukhtar Ashrafi
sujoy bhattacherjee
September 23, 2015 at 12:38 am
Hi jestine, thank you for your help to teach us to repairing job. thank you foryour coperation sujoy