Dell Monitor Repaired for No Power
Received Dell Monitor stating Problem No power & No LED Indication of power. Checked power cord for continuity cable is ok. For further testing I opened the monitor for visual inspection from inside.
For opening the LCD monitor first remove the stand then flip the display Bezel frame by pulling with the fingers (Never use pry tool or screen will get damage)
After removing bezel I pulled out display unit from the casing and removed PCB Unit.
Removed SMPS Unit for visual inspection
Visual No physical Damage Found.
Everything is seems OK. On solder side I found many dry solder points so before proceeding for voltage testing I have re solder those bad points.
After re soldering those bad solder points I connect the unit on the power and turned the switch ON & I found LED indicator is turned ON & got the screen display.
Conclusion: If you found too many dry solders on the circuit don’t waste your time using multimeter for voltage testing and component testing.
This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India.
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Note: You can check his previous repair articles in the link below:
https://jestineyong.com/mini-usb-bluetooth-fm-radio-receiver-repaired/
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Mark
January 8, 2021 at 6:33 pm
Hey Yogesh,
So many repairs are as a result of cold solder joints.
Well done on your repair and thanks for the article
Yogesh Panchal
January 9, 2021 at 5:08 pm
Mark,
This monitor is only 3 Years Old and full PCB is having dry solders....
Thanks! for Comment.
Albert van Bemmelen
January 8, 2021 at 8:30 pm
Opening those plastic top edges that hold the screen in position is always taking much time before we can start fixing the electronic boards.
And if you have an Apple monitor even doing just that is made almost impossible these days. So good job!
Yogesh Panchal
January 9, 2021 at 5:10 pm
Albert,
Some time plastic locks get broken while applying pressure for opening.
Thanks!for the comment.
Chris
January 8, 2021 at 9:20 pm
Why you get all the easy ones
Yogesh Panchal
January 9, 2021 at 5:15 pm
Chris,
That we come to know after opening the Unit,I saw customers are scraping the equipment because they have already repaired it in past 2 to 3 times for some other reason some time problem may be expensive & some time like this...
Thanks! for the Comment
Yogesh Panchal
January 9, 2021 at 6:33 pm
One more thing Chris this monitor already returned by a TV technician who is not aware about the Computer technology even he has not opened the monitor for the diagnosis & he made the customer's mind to scrape this monitor and go for new one.Because he is unable to repair......
Parasuraman S
January 9, 2021 at 12:08 am
Hi Yogesh! Good job there! Thanks for sharing!
Yogesh Panchal
January 9, 2021 at 5:16 pm
Thank you! Sir,
Pravin Mevada
January 9, 2021 at 9:34 am
Hi Yogesh
Good job best article
thanks for sharing
Yogesh Panchal
January 9, 2021 at 5:17 pm
Pravin Bhai kem chho.........
your welcome!