Maintenance requires continuous learning to keep pace with the times. Every day, not only do you maintain the machine, but you have to go online and study. You can watch videos and learn from your peers, or you'll be behind the times, and you'll be walking more and more narrowly and you'll have nowhere to go
I've been doing computer maintenance for more than 20 years, and the last time was before 2010, the computer had to be lined up. When you get married, you have to buy a computer. It doesn't matter if you have a child or not a computer。
Since the emergence of smartphones, computers have been going downhill, and they continue to use computers in addition to office and design, and then to play a single game, with their computers eating ash in the corner。
Last year i remembered that i couldn't sit in the store and wait for customers to come in。
In march this year, a fan sent a minky projector to the shop to repair it. When the projector came, it was broken and the screws were gone. The fan said that since the projector had a red light on in 30 minutes, he had checked the information online and said it was a fan problem. So i bought a new fan, and it didn't work as well, and now it's off in two or three minutes。
He couldn't do it, so he sent the machine to me. To be honest, i am also not prepared to repair this artificially disassembled machine, because it will be in danger, and it will be repaired and broken。
The machine was lighted and bright, but in two or three minutes it was cut off. If it turns on so many times, the red light starts again. This makes it possible to judge that these are two problems, with red lights pointing to the problem of heat dispersion and power outage protection。
This projector is a second phone bought by a fan, and it's too expensive to fix it, so i'm only paying 150, which is the price of my own chip maintenance, not the price of a switchboard。
Since power protection is out in two or three minutes, it can be determined that the power plate is a problem. And finally, as i thought, when the power panel was fixed, it turned into a red light for about 30 minutes. It has to wait for the machine to cool down for about 30 minutes。
The projector had four fans, and after i replaced the turbine fan near the power supply, the failure remained, and the previous fan 2 had changed itself. So there was a cycle of death, and i didn't know where it was。
For another reason, because of the low cost of the offer, it was not cost-effective to buy the original fan, so i didn't intend to fix it, so i put it on hold。
In september, when i was working on another mingi projector, i checked online to find out how the mingi projector's plant model entered, and moved out of the mingi projector again。
As a result, in the plant model, the hint 2 # fans were not able to reach the speed limit. That's weird. Even if the fan's not moving fast enough, you'll notice
I looked carefully and found that the 2# fans were really new, but there were no speed lines, only power lines, which resulted in the system not being able to detect the speed of the fans and eventually overheating protection。
I immediately replaced a three-line tedar fan, and the problem of overheating the red light was solved. This six-month-old projector problem was solved so easily。
The maintenance industry requires not only a solid foundation of electronic theory, but also continuous learning about new e-technologies, combined with practical maintenance experience, in order to have a place in the ever-changing technological changes, as well as an opportunity to feed。
