Rebirth 1999: Opening up the era of black technology

"Chen Xiao, don't be brave!" Chen Qiang felt very uncomfortable, feeling that he was really a useless father: "I know you want to take on some responsibilities for the family, and you don't want me to be in the factory..."

Chen Qiang poured the wine on the table into his stomach, "But this matter is beyond your ability. Whether CNC machine tools are high-tech products or imported from Germany, even the teachers in your school may not know it. Can you?"

Chen Qiang said: "You are about to take the college entrance examination. You don't have to worry about this matter. I know how to deal with it."

Chen Qiang is also willing to risk it. At worst, he will make trouble, report, and petition. He does not believe that there is no justice in the world.

Chen Qiang, who was depressed, continued to drink.

Chen Xiao is not a child and can understand Chen Qiang's heart as a father's final dignity in front of his children.

He stopped talking and buried his head in eating.

After dinner, Chen Xiao returned to the room.

He took out the motherboard of the CNC machine tool and studied it in detail.

This batch of machines was produced by Germany's DMG in 1995. The size of the mainboard is much larger than that of later generations, and the mainboard of the machine tool is matched with a special chip.

This type of special-purpose chip motherboard will be phased out at an accelerated pace in the next few years. Later, after Xia Guo's CNC machine tools used general-purpose chips, they followed the development of the country's integrated circuits and embarked on a path from imitation to innovation.

Chen Xiao discovered that most of the motherboards were burned, and it was very difficult to repair the original motherboards.

I looked at several motherboards in a row, all with the same problem. The huge current passing through the motherboard instantly caused many capacitors to be damaged. Some components instantly generated high temperatures, which directly melted some components of the motherboard.

It stands to reason that the machine tool uses a three-phase 380V voltage, and the neutral line of the control transformer needs to be grounded, but Chen Xiao went to the factory today to see... there was only one garbled word in the wiring.

In other words, there is a question mark whether the machine tool has a ground wire.

The motherboard cannot be repaired, but it can be remanufactured.

With Xia Guo's current technology, it is absolutely impossible to reproduce a DMG signal motherboard.

But Chen Xiao can completely change the circuit, make the motherboard larger, and make the precision-designed circuits simpler but with more quantities. As long as the machine tool can run automatically, that's it.

Chen Xiao tried to make the circuit as simple as possible. It doesn't matter if there are more circuits, so that factories in Jiangcheng or Jiangzhou should be able to produce them.

In Xia State in 1999, due to the rise of the VCD, DVD industry and CNC machine tool industry, there were already many integrated circuit OEM factories, but there was still a major gap in level compared to overseas ones.

If you ask these factories to design an integrated circuit, it will be very difficult, but some simple integrated circuits can still be made by asking them to follow the same pattern.

Chen Xiao took out his workbook and started designing the machine tool motherboard.

From simple to complex, Chen Xiao designed a total of three drawings. If the drawing with the simplest production but the most circuits is used for production, then these more than ten CNC machine tools will need to patch a "big belly" under the machine. The machine tool originally

There is definitely no room for the motherboard.

Although Chen Xiao's integrated circuit diagram is large in size, its principle is simple and easy to repair.

After finishing all this, it was already one o'clock in the night.

The lights in Chen Qiang and Lin Hui's rooms are still on, so they will definitely not be able to sleep tonight.

Chen Xiao can't explain anything to the two of them now, so he can only let them worry for a few more days. When they find a factory to process the motherboard, the matter will be solved.

The next day is the last day of the first-diagnosis examination.

In the morning, it’s Science Comprehensive and in the afternoon, it’s English.

Li Zong doesn’t have much to say about Chen Xiao’s strengths.

English was difficult for Chen Xiao in the past, but it is much easier for Chen Xiao now.

Jiang Wei and Deng Chao continued to request Chen Xiao to deliver the answer, and Chen Xiao was of course willing.

On the contrary, Su Qiao pointedly despised Chen Xiao when talking to Shen Wei before the English test.

Su Qiao bought two bottles of Rising Sun Ice Black Tea, handed one to Shen Wei, and said, "Shen Wei, which university are you going to get into?"

The college entrance examination system in 1999 was to take the test first, then estimate the scores yourself, and then fill in the application form. After filling in the college entrance examination application form, the scores will be released.

If you want to go to the university of your choice, you not only need to do well in the exam, but also fill in your application appropriately, and finally, a lot of luck is required.

Therefore, Shen Wei doesn't know what kind of university she will attend now.

Shen Wei took the Rising Sun Ice Black Tea, thanked her and said, "I haven't thought about it yet, maybe I'll go to Yanjing."

Shen Wei actually did not say that her dream university is Yenching University.

For girls in this era, the city they most yearn for is not Yangcheng, nor Shenzhen, nor Suzhou and Hangzhou, but the capital of the motherland - Yanjing.

Hearing what Shen Wei said, Su Qiao's eyes lit up and said: "Yenjing University and Shuimu University have some quotas in Jiangyang Province every year. The requirements are school recommendation and comprehensive inspection of the school. It will be even better if you have competition experience.

Well, it seems that this time Yanjing University and Shuimu University will come to our school to recruit students. Your grades are so good, maybe the school will recommend you!"

In fact, Su Qiao wanted to say that if there were no accidents, the school's recommendation for admission this time should be him.

Last month, the 1999 Olympiad Mathematics Winter Camp was held at Yenching University. Su Qiao’s family made many connections and spent a lot of money for him to participate. Su Qiao also took a week off from school.

I used some means to win the second prize. These are the advantages of Yenching University's special recruitment.

Su Qiao's father Su Desheng also said that there would be no problem in going to Yenching University.

But this matter was originally a secret operation. Even if Su Qiao was excited, she couldn't talk about it!

Hey! It’s so uncomfortable not being able to show off.

Shen Wei hesitated for a while, obviously unaware of such a thing, and said, "It can't be me..."

Having said that, Shen Wei actually still has some small expectations in her heart.

Chen Xiao is a human spirit. He probably knew the result when he heard what Su Qiao said. He handed Shen Wei a bottle of Nonghu Spring with a sharp mouth, which was a little sweet, "The Rising Sun Iced Black Tea contains aspartame, Ansai

Honey is full of essence, so it’s better to drink less of it, and mineral water is healthier.”

Su Qiao felt very unhappy when her conversation with Shen Wei was interrupted. Shen Wei looked at the mineral water handed over by Chen Xiao, hesitated, put down the Rising Sun Ice Tea, and took the Nongfu Spring from Chen Xiao.

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Now Su Qiao was about to explode on the spot.

Looking at Chen Xiao's leaving figure, Su Qiao couldn't help but said sarcastically: "There are some people who don't want to fail the English test this afternoon!"

Su Qiao's family is in good condition. In addition to being tutored by a dedicated English teacher, he often attends English summer camps. English is his specialty.