After sending Director Cheng and Boss Zhang away, Xu Hongwen, who had just received a few thousand yuan, was not in a good mood, and today he wanted to help his good buddy Cheng Cheng, but in the end he couldn't help anything! In fact, Xu Hongwen has thought about looking for Mayor Wang, but Xu Hongwen is not an ordinary hairy boy, he thinks that this matter is too big, Mayor Wang, who has just come to Haizhou City, may not have a stable foothold, and it is very inappropriate to ask Mayor Wang for help!

Lunch is Hongwu from the outside of the restaurant, the taste is very good, after eating Xu Hongwen, who does not want to think more, called Hongwu, taking advantage of the absence of the guests to let Hongwu also move with him to disassemble the machine, no matter how much the theory is seen, there is no practice a few times to profound, Xu Hongwen taught hand-in-hand on the side, telling sù Hongwu how to master the appropriate strength to disassemble the case, Xu Hongwen watched Hongwu carefully dismantle the big brother, thinking that this kid's brain is very lively, the first time it was dismantled quite slippery!

Seeing that Hongwu had learned well, Xu Hongwen smiled happily: "Hongwu, it won't take long for a student like you to learn to cultivate Big Brother like you now!" ”

"Big brother, don't praise me, if you don't teach me to understand this!"

"Haha, you study harder, and you have to repair the machine when I'm not in the store in the future!"

"Hehe, I'm still far away!"

Saying that Xu Hongwen asked Hongwu to remove the motherboard of the big brother, the problem of this big brother is that it was not displayed, Xu Hongwen has seen that the LCD screen is not damaged, but the backlight is not bright so that he can't see the display on the screen, Xu Hongwen took Hongwu to check the circuit of the backlight, and did not find a problem.

The only thing left is the problem of the backlight, logically speaking, the LED light in the backlight is difficult to burn out, Xu Hongwen carefully removed the backlight board, peeled off the astigmatism sheet on it, and then tore off a layer of black tape to expose a few LED light pieces on the backlight board, Xu Hongwen used the power supply to test the LED light pieces are bright, he picked up the magnifying glass and took a closer look at the line on the circuit connected by the LED light sheet was oxidized to break.

Xu Hongwen, who found this problem, gave Hongwu a magnifying glass, and asked him to look at this problem as well, so that Hongwu could see it clearly, Xu Hongwen took the place where the thin copper wire was broken and flew a wire, and after flying the line, he tried OK, and then asked Hongwu to assemble Big Brother.

Watching Hongwu carefully assembling the big brother on the repair table, Xu Hongwen had already thought of a business opportunity when he saw the LED light sheet just now, he knew very well that the technical content of such a small LED light sheet was not very high, and the LED on the market now was not as versatile as the market outlook, and such LED lights would appear on any occasion you could see in the future.

Needless to say, the backlight of the mobile phone, the energy-saving downlights used at home, the energy-saving street lights on the road, and the ubiquitous billboards are all used LEDs.

Because LED is a green and energy-saving lighting method, there is a very important point is that the service life of LED is very long, in the test of later generations of professional institutions, it is concluded that the effective working time of high-quality LED is 50,000 hours, and after the LED is lit for 50,000 hours, it will work for tens of thousands of hours with the previous 60% brightness, but its brightness will slowly weaken with the passage of time.

Xu Hongwen liked to use LED lights very much in his previous life, and after installing such lights, he didn't have the pain of changing lights often before!

Now Xu Hongwen sees this kind of business opportunity, there is no such LED that can be used for lighting on the market, and no one in the world's major companies sees the huge potential of LED, which is an excellent opportunity for Xu Hongwen, and Xu Youwen has paid attention to LED technology in his previous life, and knows that it is not difficult to achieve high brightness and chromaticity change of LED in technology, if someone else wants to do this, it may be necessary to go through millions of tests may not be able to find the right material. But he only needs a real room with certain conditions to make amazing LEDs.

Thinking of this, Xu Hongwen heard Hongwu calling him, and saw that Hongwu had already assembled the big brother, and after letting Hongwu try it, Xu Hongwen also took it over and tried it, and put the repaired big brother aside after finding no other problems.

Let Hongwu dismantle another one, it is very simple to disassemble the machine, Xu Hongwen did not watch from the side, Xu Hongwen, who was about to pour water with his own cup, saw that Yang Qin was pushing the door from the outside.

Xu Hongwen put down the cup, walked over and asked, "Yang Qin, when did you get off the plane yesterday!" ”

Yang Qin, who arrived at school yesterday afternoon, has not seen her brother, at first she thought that her brother did not come from home, and then heard a classmate say that she had seen Xu Hongwen this morning, which made Yang Qin remember that her brother was about to open a store, and Yang Qin, who had specially invited Yang Qin, who had taken a half-day vacation, rushed over after lunch, and Yang Qin didn't dare to recognize it when she arrived at the door of the store just now, but she didn't expect that she didn't come here for a few days, and the store changed a lot.

Yang Qin, who came in pushing the glass door, heard her brother ask her, and said with a little resentment: "Senior brother, you didn't go to the airport to pick me up yesterday!" ”

"Haha, I originally wanted to pick you up, but I didn't know which plane you were on, and I had a lot of things to do yesterday afternoon, so I didn't bother to come over for a while!"

"Humph! You just didn't think of me! Saying that, Yang Qin stepped forward and pinched her senior brother's waist, wearing such thick clothes in the winter, whether it hurt or not, only Xu Hongwen himself knew.

"Don't pinch me, my brother is still there!"

"Ahh At this time, Yang Qin saw the person hiding behind the instrument of the repair table, and she blushed for a while, the intimate act just now was just that she had not seen her senior brother for several days and happily forgot about her shape, and it was really embarrassing to be seen by others.

Yang Qin was a little embarrassed and said, "Senior brother, you just said that he was your brother!" ”

"Yes, Hongwu is the child of my second uncle's family!"

Xu Hongwu, who was sitting behind the repair table, saw a beautiful girl come in, he thought it was to repair the eldest brother at first, and he heard the eldest brother greet the beauty, looking at the intimacy of the two, Hongwu didn't know who the girl in front of him was, then Hongwu stood up and shouted with a smile: "Sister-in-law, you came to find my eldest brother!" ”

"Hmm!" The voice was a little small, and Yang Qin was a little embarrassed to hear others call her sister-in-law, but she quickly recovered and said with a smile: "Your name is Hongwu, I see that you are cultivating Big Brother, I didn't expect you to be so powerful!" ”

Hongwu said: "I will cultivate big brother there, and I just learned from my brother!" ”

"Sit down first!" Xu Youwen pulled Yang Qin to the sofa and sat down, and said to Hongwu: "Hongwu, you dismantle your big brother first!" ”

After Xu Hongwen finished speaking, he poured another cup of hot tea, took two cups of tea and put them on the coffee table, pushed a cup to Yang Qin, and asked, "Why are you here, don't you listen to classes in the afternoon!" ”

"I took an afternoon off to see how your store is doing!"

"Look, that's it!"

"Your shop has been open for a few days, and business is not working!"

"It's okay, I can pick up a few big brothers a day, and I can earn more than 10,000 yuan a day in the past few days of opening a store!"

"Ah, so many! More than 10,000 yuan, that's more than my dad's salary in a year! ”

"Haha, I'm in business, how can I compare with your father!"

Yang Qin's arrival made the store seem a little more angry, after repairing the two machines that were put in the store, Xu Hongwen went on to repair four big brothers, Yang Qin was a little surprised when he collected the money, and he collected almost 30,000 yuan in one afternoon, she really didn't expect that Big Brother Xiu was so profitable, and Yang Qin was really happy for him when she saw her brother making money! Ask for a recommendation!! Collect!! Thank you