MTL - Rebirth 1999: Opening the Age of Black Technology-Chapter 7 The motherboard can't be repaired
"Xiaozi, what are you talking nonsense about?" Chen Qiang was very uncomfortable, feeling that he was really a useless father: "I know you want to help the family take some responsibilities, and you don't want me in the factory..."
Chen Qiang poured the wine on the table into his stomach, "But this is beyond your ability. Whether the CNC machine tool is a high-tech product or an imported product from Germany, your computer teacher may not know it, will you?"
Chen Qiang said: "You are about to take the college entrance examination. You don't need to worry about this. I know how to deal with it."
This is what Chen Qiang said. In fact, he really has no good solution. Even if he finally gets rid of the responsibility of the machine being burned, the job in the factory will definitely be lost.
Chen Qiang, who was depressed in his heart, continued to drink and drink. The powerlessness and incompetence of the middle-aged man made the family feel so depressed.
Chen Xiao is not a child, so he can understand Chen Qiang's last dignity as a father in front of his children.
He stopped talking and buried himself in eating.
After the meal, Chen Xiao returned to the room.
He took out the main board of the CNC machine tool and studied it in detail.
This batch of machines was produced by German Demag in 1995. The volume of the main board is much larger than that of later generations, and the main board of the machine tool is matched with a special chip.
This type of special-purpose chip motherboard will be eliminated in the next few years at an accelerated pace. After the CNC machine tools in Xia Guo use general-purpose chips, they have embarked on a path from imitation to innovation with the development of national integrated circuits.
Chen Xiao found that most of the motherboards were burned, and it was very difficult to repair the original motherboard.
I looked at several motherboards in a row, and they all had the same problem. The huge current that passed through the motherboard instantly caused many capacitors to be damaged, and some components instantly generated high temperature, which directly melted some of the components of the motherboard.
It stands to reason that the machine tool uses a three-phase 380V voltage, and the zero line of the control transformer needs to be grounded, but Chen Xiao went to the factory today to see... There was only one gibberish in the wiring.
In other words, a question mark should be placed on whether the machine tool has a ground wire.
The motherboard cannot be repaired, but it can be remanufactured.
With the current technology of Xia Guo, it is absolutely impossible to re-engrave this signal motherboard according to Demag.
However, Chen Xiao can completely change the circuit, make the main board bigger, and make the precision-designed circuits simpler but more numerous, as long as the machine tool can run automatically.
Chen Xiao made the circuit as simple as possible, and it doesn't matter if there are more circuits, so that the factories in Jiangcheng or Jiangzhou should be able to produce.
In the Xia Kingdom in 1999, because of the rise of the VCD, DVD industry and the CNC machine tool industry, there were already many IC OEM factories, but there was still a significant gap compared with overseas ones.
You ask these factories to design an integrated circuit, which is very difficult, but some simple integrated circuits can still be made by letting them follow the steps.
Chen Xiao took out the workbook and began to design the main board of the machine tool.
From simple to complex, Chen Xiao designed a total of three drawings. If the drawings are the simplest to produce but have the most circuits for production, then these more than ten CNC machine tools need to be patched with a "big belly" under the machine. The machine tool originally The position of the motherboard must not be put down.
Although Chen Xiao's integrated circuit diagram is large in size, the principle is simple and easy to maintain.
After all this was done, it was already a little late at night.
The lights in Chen Qiang and Lin Hui's room were still on, so they definitely won't be able to sleep tonight.
Chen Xiao couldn't explain anything to the two of them now. He only made them worry for a few more days. When they found a factory to process the motherboard, the matter would be solved easily.
The next day was the last day of a medical examination.
Science in the morning and English in the afternoon.
The strength of Chen Xiao, who has nothing to say about it.
English was difficult for Chen Xiao before, but it is much easier for Chen Xiao now.
Jiang Wei and Deng Chao continued to ask Chen Xiao to deliver the answer, of course Chen Xiao was willing.
On the contrary, when Su Qiao was talking to Shen Wei before the English test, she despised Chen Xiao if she meant something.
Su Qiao bought two bottles of Rising Sun Iced Black Tea, handed a bottle to Shen Wei, and said, "Shen Wei, what university are you going to study for?"
The college entrance examination system in 1999 is to take the test first, then evaluate the score by yourself, and then fill in the volunteers.
If you want to go to a university of your choice, not only do you need to do well in the exam, but you also need to fill in the volunteers properly, and finally you need a lot of luck.
Therefore, Shen Wei doesn't know what kind of university she will go to.
Shen Wei took the Rising Sun Rising Ice Black Tea, thanked her and said, "I haven't made up my mind yet, maybe I'll go to Yanjing."
Shen Wei didn't actually say that her dream university was Yenching University.
In this era, the most desirable city for girls is not Yangcheng, nor Shenzhen, nor Suzhou and Hangzhou, but the capital of the motherland, Yanjing.
Hearing Shen Wei's words, Su Qiao's eyes lit up and said, "Yenjing University and Shuimu University will have a few places in Jiangyang Province every year. The requirements are school recommendation and comprehensive school inspection. If you have competition experience, it will be even better. Well, UU reading www.uukanshu.com This time, it seems that both Yanjing University and Shuimu University will come to our school to recruit, your grades are so good, maybe the school will recommend you!"
In fact, Su Qiao wanted to say that if there was no accident in the point enrollment recommended by the school this time, it should be him.
Last month, the 1999 Olympic Mathematics Winter Camp was held at Yenching University. Su Qiao's family had a lot of connections for him and spent a lot of money to participate. Su Qiao also took a week off from school. Using some means to win the second prize, these are the advantages of Yanjing University.
Su Qiao's father Su Desheng also said that there is no problem in going to Yenching University.
But this matter was originally a secret operation, even if Su Qiao was excited, she couldn't say it!
Why! It's so hard not to be forced.
Shen Wei hesitated for a while, obviously unaware of such a thing, she said, "It shouldn't be me..."
That being said, in fact, Shen Wei still has some small expectations in her heart.
Chen Xiao is a human being. When he heard Su Qiao say this, he probably knew the result. He handed Shen Wei a bottle of Shanquan from a farmer with a sharp mouth. Honey is an essence, drink a little less, and mineral water is healthy.”
Su Qiao was very upset when her conversation with Shen Wei was interrupted. How could she know that Shen Wei looked at the mineral water handed over by Chen Xiao, hesitated for a moment, put down the Rising Sun Iced Fire Tea, and took over Chen Xiao's Nongfu Spring .
Now Su Qiao is going to explode in situ.
Looking at Chen Xiao's back, Su Qiao couldn't help but sarcastically said, "Some people don't need to fail the English test in the afternoon!"
Su Qiao's family is in good condition. In addition to being tutored by a special English teacher, he often participates in English summer camps. His English is his best.
