A Dead Computer LCD Monitor Was Brought Back To Life
A computer technician and a friend of mine brought me an LCD computer monitor for repair. He was cleaning the storage room and end up finding a lot of computer LCD monitors lying around. He brought me all of them but this was the only one that worth saving; the rest were dismantled and parts were stored in my shop to be used for later repairs.
There was no stand by light and based on that I took the screen apart to find out the cause of this fault.
I checked the fuse but it was intact and when I check the board for cold soldering joint
I found a lot of them and that is logical since it was staying in the storage room for a long time.
I also found these four bulged capacitors that needed to be replaced and hopefully that will bring this LCD monitor back to life.
If you look closely you would see some of the joints that needed fresh re soldering and also cleaning.
As seen in the photo, these four capacitors were replaced and I re-soldered almost all the cold soldering joints
on that board and made sure all were up to specifications.
After all these things were done, I powered the LCD monitor and hopped for the best.
I was so glad to see the NO SIGNAL sign on display; the customer came and took it to his shop. We both agreed that this repair cost will be an exchange for all the parts I took out of the dead LCD monitors found in the customer’s storage room.
Mission Accomplished.
This article was prepared for you by Waleed Rishmawi, one of our ‘Master Authors’ and currently working in the Bethlehem area of Palestine repairing electrical and electronic equipment.
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Note: You can check his previous article on An LCD Computer Monitor Comes On But No Display Once Connected To a Computer Repaired
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Yogesh Panchal
March 28, 2022 at 5:45 pm
Good Job!waleed
Waleed Rishmawi
April 1, 2022 at 2:28 pm
Yogesh: thanks man, have a blessed day
Albert van Bemmelen
March 28, 2022 at 7:21 pm
Not a bad deal when by helping someone without getting paid you still are able to get some spare parts out of it for future repairs!
Waleed Rishmawi
April 1, 2022 at 2:29 pm
Albert: yes, that is the plan. although he gave me some money that I was not expecting..he is a vip customer in my books. have a blessed dasy
Parasuraman S
March 28, 2022 at 9:05 pm
Good bargain with a good fix!
Waleed Rishmawi
April 1, 2022 at 2:29 pm
Parasuraman: very good deal. have a blessed day
Tito Kanshulu
March 28, 2022 at 9:05 pm
Good job Waleed. Quite educative
Waleed Rishmawi
April 1, 2022 at 2:34 pm
Tito: thanks man. glad to hear that. have a blessed day
Anwar Shiekh
March 28, 2022 at 9:14 pm
"I checked the fuse but it was intact and when I check the board for cold soldering joint I found a lot of them and that is logical since it was staying in the storage room for a long time."
Not sure cold soldering joints develop from storage.
Waleed Rishmawi
April 1, 2022 at 2:37 pm
Anwar: yes cold soldering could develop from storage due to humidity and dust. I have seen that happy many many times. have a blessed day
gary cale
March 28, 2022 at 11:11 pm
Good logical process applied from knowledge and experience. Generous of you to take parts in exchange for services.
Waleed Rishmawi
April 1, 2022 at 2:39 pm
gary: thanks for your comments yes, exchanging parts is a very good idea; that way, I have some parts for future repair. have a blessed day
Imoudu Onwumah
March 29, 2022 at 12:21 am
Good easy fix,so to say.Thanks for sharing.
Waleed Rishmawi
April 1, 2022 at 2:41 pm
Imoudu: yes an easy fix but not all repairs are hard so we face easy ones and hard ones and I beleive the easy repair are rewards for doing that hard ones. have a blessed day
Mathew Charles Karonga
March 29, 2022 at 11:54 am
Well done sir
Its good that you haversted parts which is a good investment for any electronic shop.
Thanks and keep sharing
Waleed Rishmawi
April 1, 2022 at 2:42 pm
Mathew: thanks you. yes getting parts help a future repair and makes things easier. have a blessed day and yes I will keep sharing.