Old Deng is reborn in the 1980s, and he starts by severing his father-son relationship!

The factory is currently at a critical juncture in its product upgrade and replacement process.

The production line for old-fashioned transistor radios is being gradually reduced and shut down, and the entire factory is working hard to develop a new generation of radios.

The transition was from simple radio recording to single-card models that could record and play audio, and then to high-specification models with dual-card stereo sound.

To keep up with the pace of product upgrades, the factory gritted its teeth and introduced a batch of advanced foreign equipment, such as automatic welding machines, precision testing instruments, rectifiers, etc. The shiny metal shells piled up in the workshop and warehouse look nice, but they have caused a lot of trouble for many veteran technicians.

The domestic electronics industry is still in its infancy, and English is not yet widely spoken, let alone German and Japanese, making the translation of equipment manuals a challenge.

Domestic experts have irregular schedules and need to be booked in advance, but the equipment can't just be left to gather dust after it arrives at the factory. So, all the challenges of debugging and trial operation are left to the factory's technical backbone.

What's even more troublesome is that these foreign machines are very delicate and prone to malfunctions. Parts are hard to find and the principles are not well understood, making repairs more difficult than debugging. Especially on the production line, if one machine breaks down, the entire trial production line has to stop.

Zhao Yong was quite moved when Chen Deshun mentioned the rectifier. Instead of denying it, he followed up frankly and said, "Old Chen, don't talk like that. It's a Siemens rectifier imported from Germany. The instruction manual is all in German. Without an expert, who can understand it? It's perfectly normal to not understand it even after studying it for a month or two, let alone studying it all night."

He originally wanted to take advantage of the product upgrade opportunity to thoroughly understand the foreign parts, solve the debugging problems, and help the factory advance the development of the tape recorder. Perhaps he could seize the opportunity to get promoted and surpass Chen Deshun.

I spent the whole night yesterday studying the manual, but I still couldn't figure out the circuit. Apart from the machine emitting black smoke a few times, I made absolutely no progress.

These foreign high-end goods are more complicated than a woman's heart.

As the start of the workday approached, the workshop gradually became lively.

Workers arrived one after another, and the workshop entrance was bustling with noise and the machines were humming, creating a busy scene.

The workshop foreman, a cigarette dangling from his lips, strode in. Seeing a group of people gathered around the worktable, he pushed his way forward: "What are you all doing here? Time to get to work!"

Seeing this, everyone quickly dispersed and greeted him, "Good morning, Director! Good morning, Director!"

Zhao Yong stepped forward to greet him, then explained with a smile, "Old Chen has some insights into the factory's new rectifiers, and we're discussing them right now."

His words were ostensibly a compliment to Chen Deshun, but in reality, they concealed a ulterior motive.

Since he can't handle this foreign stuff, why not push Chen Deshun to the forefront? If Chen Deshun is also helpless, it will not only embarrass him, but also make it seem normal that he can't handle it.

Director Li's eyes lit up, and he immediately became interested: "Oh? Have you come to any conclusions?"

The rectifier is crucial to the radio cassette production line, but the experts haven't arrived yet, and the factory leaders are having a huge headache!

Zhao Yong turned to look at Chen Deshun, smiled slightly, and clearly passed the difficult question to him.

In his view, the two were both level seven workers with similar skill levels. Chen Deshun could not possibly master the foreign gadgets that he had spent the whole night trying to figure out.

Chen Deshun didn't reply, but just glanced at Zhao Yong indifferently, then turned and walked straight to workbench number one.

The Siemens rectifiers piled up on the table were the very thing that was giving Zhao Yong a major headache.

The rectifier is to the manufacturing of a radio or tape recorder what the heart and blood circulation are like.

Without a rectifier, the AC power from the household socket cannot be directly supplied to the machine. The machine can only operate normally by converting the AC power into stable DC power through a rectifier.

The newly developed batch of tape recorders in the factory has higher requirements for the stability of the rectifier, which is also the difficulty in debugging.

Liu Jun followed behind his master, feeling excited. He believed that as long as his master took action, there was no problem that couldn't be solved!

Even the most difficult malfunctions could be easily solved by my master, so foreign gadgets would certainly be no problem for him either.

Many curious coworkers gathered around, and Director Li stepped forward.

The noise in the workshop gradually subsided, and everyone's eyes were fixed on the semi-finished radio cassette player in Chen Deshun's hand.

Everyone was curious whether Chen Deshun could solve the problem of the power source for the radio.

Zhao Yong stood at the back of the crowd, arms crossed, waiting to see Chen Deshun make a fool of himself.

He had even planned how to smooth things over if Chen Deshun couldn't handle it, so that he could both appear capable and put Chen Deshun down.

Chen Deshun held it in his hand and weighed it. The body was not very thick or heavy, and there were slight grinding marks on the edges. He then turned it over to check the solder joints on the base plate. Only after confirming that there were no false solder joints or cold solder joints did he connect the low-voltage test power supply.

Instead of checking the main output, he placed the probe of a portable oscilloscope on an inconspicuous compensation feedback loop on the side of the machine.

On the oscilloscope screen, a chaotic waveform band twisted wildly, accompanied by dense spikes, clearly indicating a severe self-excitation phenomenon.

The workshop director leaned forward; the waveform was almost identical to that of Zhao Yong and the other technicians.

Chen Deshun asked calmly, "Zhao Yong, what do you think is the core challenge with the equipment right now?"

Zhao Yong chuckled and subconsciously replied, "That goes without saying, of course it's because the oscillation frequency is uncontrollable and the output ripples can't be suppressed."

This statement is both a defense and a veiled boast, implying that at least he had checked the areas that needed to be investigated.

Without turning his head, Chen Deshun traced the outline of the copper foil on the circuit board with his finger: "So, you're just focusing on the main circuit capacitor and the grounding wire?"

Zhao Yong sensed the skepticism in Chen Deshun's words, his face darkened, and he was about to retort when Chen Deshun asked again, "How did you handle it?"

Zhao Yong pondered for a moment and said, "I replaced all the filter capacitors and thickened the grounding copper busbar! The amplitude has been reduced, but it's still not stable enough when starting up and adjusting the load!"

He didn't believe Chen Deshun had a good solution.

"To abandon the essential for the trivial." Chen Deshun said these four words in a calm tone.

"What did you say?!"

Zhao Yong's face turned ugly: "Don't just talk the talk! If you can do it right, I have nothing to say."

Whether it works or not, we'll see in our hands.

Chen Deshun completely ignored the gazes around him and bent down to turn off the test power supply of the rectifier.

Although the newly replaced rectifier has a slightly higher power output than the one used in the old radio, the core fault logic is similar. In his previous life, he had handled hundreds or even thousands of these radios and could spot the problem at a glance.

Therefore, instead of rashly twisting any terminals, he extended two fingertips and gently pressed a small, inconspicuous adjustable potentiometer on the side of the device.

This is a simple phase compensation potentiometer, hidden next to the heat sink. It is easy to overlook if you don't look closely, but it is the core adjustment point of the feedback loop.

"The compensation is excessive."

Without even looking up, Chen Deshun's voice clearly reached everyone's ears: "You're so focused on the high-voltage wiring and output terminals that you've overlooked the real hidden danger. The phase compensation is too high, causing the output ripple to go out of control and even triggering a slight self-oscillation. If this were installed in a tape recorder, it would not only produce noise but could also burn out the amplifier board."