After removing the case, he didn't remove the circuit board from the telephone, but just stared at the board and shook his head.

He connected the telephone line to the switch cable on the table with a metal crocodile clip, picked up the microphone and listened to the sound inside, and after placing the telephone and microphone lightly on the table, he picked up the two probes of the multimeter and measured them on the circuit board.

After measuring the voltage at three or four points and measuring the resistance value in two places, he put down the two probes of the multimeter, thought for a while, picked up the electric soldering iron on the table, soldered a small resistance connected to the integrated circuit chip, and then used a small section of metal wire to weld it at the position of the resistance welding just now, and said, "It's okay!"

"Ahh

Xu Yanni asked in surprise, "That's it?...... , can't it?"

Jiang Xinwei smiled, handed her the telephone, and said, "Then you can try it and hear if there is any noise in it." ”

Before Xu Yanni came back to her senses, Gong Jianliang had already grabbed the telephone first, and then picked up the microphone.

But soon his face changed, and his fingers pressed the number on the dial hard, and then listened for a while, and then he reluctantly threw the microphone on the table, and said in his mouth: "It must be a coincidence, absolutely impossible! How can there be such a telephone repair?"

Although he did not explicitly say that the problem of the telephone noise had been resolved, everyone around him knew the result.

Fang Xiaojun obviously didn't believe it either, he walked over and picked up the microphone, listened and pressed the number and slapped the fork spring, he really couldn't find a problem and put down the microphone unwillingly, and said, "What's going on?"

Deng Xintian walked to the shelf, picked up another problematic telephone, and said to Jiang Xinwei: "Xiao Jiang, can you try this telephone?"

Jiang Xinwei silently took the telephone, quickly unpacked it, and then picked up a crucifixer to disassemble the case.

The suspicious Xu Yanni helped him move the telephone that had been repaired, vacated the telephone line, and gently clamped the metal crocodile to Jiang Xinwei's hand.

Jiang Xinwei used a metal crocodile clip to connect the new telephone into the test line and picked up the microphone.

Soon, there was a screeching sound of electricity in the microphone, not to mention Jiang Xinwei who was holding the microphone, even other people who were far away could hear it, and the harsh sound made everyone's ears feel very uncomfortable.

Jiang Xinxu disconnected the test line, and after the screaming sound disappeared, he picked up the multimeter and started the test.

Because the circuit had been disconnected, the multimeter could not test the voltage inside, he only tested the resistance of several components connected to the circuit.

Just when everyone thought that Jiang Xinwei connected the telephone to the test line again to test the voltage, Jiang Xinwei picked up the needle-nose pliers again and cut off a small resistor on the circuit board. After that, he connected the test line and picked up the microphone again.

There was no screaming sound in the microphone of the telephone just now, although everyone didn't know if there was a small murmur, but everyone's faces changed again, and many people showed admiration, even Gong Jianliang had to lower his head, although his face was very unwilling.

With such a simple gesture he could make the screaming sound go away, no one here could do it.

What made everyone speechless and admired the most was that the two resistors he cut out were not in the same position, one was in the middle of the motherboard, which belonged to the auxiliary circuit of the audio chip, and the other was next to the power tube.

Gong Jianliang, Fang Xiaojun, and Deng Xintian, who were standing next to the audience, were all technicians who had participated in the design of the telephone, and they were very familiar with every electronic component in it, and they knew that the functions and functions of the two resistors cut by Jiang Xinwei were fundamentally different: the former resistor was mainly used for voltage sampling, maintaining the voltage of the chip in one state, and keeping the output state of the chip stable. The latter resistor is simply used to ground to dissipate any static electricity that may occur, ensuring that the voltage is zero at the point.

In other words, the fault just now was not due to the same cause, but two different faults, but he took extremely simple measures to solve the problem lightly, which is really too godly! If he hadn't seen it with his own eyes, he would never have believed it.

Jiang Xinwei handed the telephone to Xu Yanni and said, "Let people put them up and sell them." ”

Xu Yanni took the phone and asked blankly, "Little Jiang...... Master Jiang, can you tell us why? Why do you conclude at once that they are the cause, and could it be that Germany deliberately set these traps when designing the telephone?...... , but the resistor you cut off is not the same every time. ”

Everyone wanted to know why, and they all watched him, lest they miss every word he said.

Jiang Xinwei smiled and said, "In the future, everyone will have the opportunity to learn from each other. When you are all calm, I will talk about it more seriously, it is impossible to explain the problem thoroughly in a short period of time. Besides, I have only come into contact with two telephones so far, and I have not found the essence of the problem, nor have I found their commonalities, and I still have to understand and summarize. ”

Xu Yanni sighed in disappointment.

Jiang Xinwei said: "Don't worry, one thing is certain, it is impossible for the Germans to deliberately design more electronic components. This is only the case with us, because we don't have a thorough understanding of their technology and don't know how to select the relevant parameters. Especially when encountering unqualified PCB circuit boards and electronic components with huge performance differences, it is even more helpless. ”

"Parameters?" several technicians were stunned, "the telephone is not a complex device, and the parameters need to be studied?"

Looking at the confused eyes of everyone, Jiang Xinwei realized that he looked up at these technicians in front of him. These people are not highly educated, have little experience, and at best are skilled workers, far from researchers.

Think about it, if they were highly skilled and had been selected by their main business, how could they stay in these three industries?

Jiang Xinwei asked Deng Xintian, "Director Deng, can I go?"

Deng Xintian was also distracted for a while, and it wasn't until Jiang Xinwei looked at him and waited for him to answer that he hurriedly said, "Where are you going?...... , how can you do it, you haven't eaten yet. Mr. Hao said, we must treat you well. No, no......"

Jiang Xinwei said with a pun: "Didn't you entertain you just now?...... It's still early, and I don't need to wait here for dinner, I want to take advantage of the rare time to come to Yiyang City today, I want to take a walk around the city. In case Mr. Hao doesn't transfer me over in the future, if I don't take a stroll, won't I run in vain? It will be difficult for us countrymen to enter the county seat once, let alone Yiyang City. ”

Deng Xintian smiled awkwardly and said, "Misunderstanding, it's purely a misunderstanding......"

Gong Jianliang was angry again, and said: "Didn't you learn to maintain this kind of telephone somewhere? I happened to use it today, what is there to show off? If you have the ability, you can tell the reason and let us see and understand, otherwise, you should put away your villain's mentality? Do you think that our post and telecommunications equipment company is indispensable to you? Do you think that our President Hao really values you? Which onion are you?"

Jiang Xinwei looked at him and said, "I'm not counting green onions." I want to ask you, what else do you do besides being jealous of others?"

"I'm jealous of you?" Gong Jianliang sneered, "You think too highly of yourself." Even if I don't work here anymore, there are still a lot of good units to take me in. What about you? Cowhide was blowing and screaming, but he was still delivering newspapers in the country. Tell me, what am I jealous of you? Do you have a diploma?"

Jiang Xinwei smiled and said: "What you said is good, I'm really strange, I don't have a diploma, and I don't have a good job, why are you jealous? There is no reason to be jealous, but you are jealous now." You're really inexplicable. …… By the way, you don't want to be led by me, do you? Then I have to sue sù and immediately find someone to transfer me away, not to mention the transfer out of the post and telecommunications equipment company, at least I have to transfer out of the development department, otherwise you will be uncomfortable in the future. ”

He believes that his transfer is decided by the leaders above, and it doesn't matter if he offends the clown-like Gong Jianliang in front of him, since you stretch out your face, then I will slap you a few times.

"You!" Gong Jianliang's face was red and white for a while.

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