Chen Ziping originally only planned to briefly introduce Lin Hong to the content of the arcade, but he didn't expect that Lin Hong seemed to know a lot about circuits, and asked a question at a critical moment from time to time, gradually opening his chatterbox. It just so happened that this arcade machine was a little difficult to maintain, and he couldn't detect the fault for a while, so he introduced the corresponding structure and general principle to Lin Hong while testing.

This time, Lin Hong came into contact with the concept of processor and memory, and there is a row of circuit elements on the cardboard, which are memory and processor for graphics and commands. As for the specific principles of these two structures, Chen Ziping did not elaborate, and he himself did not know much about it, only knew the approximate function, as the name suggests, memory is used to store data. The processor, on the other hand, is used to process the input signal and convert the digital signal in the graphics memory into an analog signal and output it to the scanner board, and then display it in the picture tube.

Chen Ziping regarded it as his own review and sorting out the knowledge he had mastered before, as for whether Lin Hong could understand it, he obviously did not hold out any hope, after all, this knowledge, let alone a primary school student, even if it was a college student, he would not be able to understand it for a while, because there was no knowledge of this kind in the university at all.

Lin Hong, on the other hand, listened to it with a light in his eyes, and instantly built up the entire model of the arcade, as if such an arcade machine really existed in his mind.

"What's wrong?" Chen Ziping became a little anxious, he checked all the possible places, and still didn't have a clue. Generally speaking, after turning on the computer like this, the screen is pitch black and there is no grating, as if there is no power plugged in, usually the power supply part or the picture tube part is faulty.

However, Chen Ziping carefully checked these two parts, and all the parameters showed that they were very normal.

Just when Chen Ziping lost patience and wanted to put this machine first and leave it for later processing, Lin Hong suddenly said:

"Uncle, it should be a problem with the line scan part."

Chen Ziping was slightly stunned, and then shook his head: "It shouldn't be." I just checked it with a multimeter, and the ZD801, D806, and R802 were also removed and tested, and there were no problems. ”

"Electrolytic C806." Lin Hong said that he had to quote a more specific component name.

Chen Ziping only reflected in hindsight at this time, and he looked at Lin Hong with a surprised expression: "Lin Hong, have you been exposed to these things before?" ”

What Lin Hong said just now, under normal circumstances, ordinary people don't know at all, and people with average technology can't get in touch at all, even if his cousin runs a repair shop, and the maintenance personnel in the countryside generally only stay in the stage of replacing parts, that is, first determine which place is broken, and then replace the entire part as a whole.

As the saying goes, "as soon as an expert makes a move, he will know if there is one", the two sentences Lin Hong just said reflect that his attainments in this area are very extraordinary.

"I just know a little bit about the technology of television." Lin Hong didn't say much, this sentence was enough. He saw that 80 percent of the failure of the console was in the display.

Chen Ziping seemed to see Lin Hong for the first time, and after carefully examining him, he began to check the electrolytic capacitor that Lin Hong said just now. Electrolytic capacitors are a special type of capacitors with very large capacitances, usually dozens or even hundreds of times larger than ordinary capacitors. C806 is a model of electrolytic capacitor, and the letters and numbers represent a specific parameter.

There are dozens or hundreds of capacitors on the circuit board, all of which have their own different functions, but Lin Hong accurately said the capacitor model, so Chen Ziping quickly found this electrolytic capacitor named C806.

Chen Ziping put his hand on this electrolytic capacitor and felt it, and found that the temperature of this capacitor was obviously much higher than that of other components. He glanced at Lin Hong in surprise, although he hadn't tested it with a meter, he had already recognized Lin Hong's statement in his heart.

Then, he replaced this capacitor with electric welding, and then used a multimeter to detect it, and sure enough, this capacitor has seriously leaked.

Chen Ziping left for a while, and he couldn't find this model of electrolysis for the time being, so he found a scrapped machine in the warehouse and dismantled such a piece of electrolysis from the circuit board. Then go back to the game hall and electrolyze this to the game console to weld it.

He pressed the power button, and the display suddenly lit up, and it had been repaired.

At this moment, I already know that the problem lies in this capacitor, so if I push it back, I naturally feel that this fault is actually not a big deal, and I can think of it if I think about it carefully. But Chen Ziping doesn't think so, maintenance is like this, reverse thrust is very easy, but there are various difficulties in the process of locating faulty components from the phenomenon.

"Lin Hong, you're still in elementary school, right?" Chen Ziping asked.

"Well, fifth grade."

Chen Ziping suddenly felt that he couldn't continue to ask, a fifth-grade electronic master stood in front of him, and his level was likely to be even better than himself, which made him feel like a very failure in life.

Chen Ziping knows very well what the current level of education is, so he naturally doesn't think that the children now are so powerful, he can only say that Lin Hong, this kid, is too perverted.

"I didn't expect Chubby's vision to be good, or I didn't look for a friend, and I found such a good one as soon as I looked for it." Chen Ziping thought so in his heart.

In fact, although they are all from Tanglin City, they have been developing in the southern coastal cities before, and it is only in the past two years that they have begun to slowly shift their focus to their hometowns. Due to the gap between the education level and economic development of the two places, Chubby has not been able to get along well with his classmates at school, in Pang's words, he has no common language with them.

"Lin Hong, you are really powerful, I believe that you will definitely become a leader in this field in the future, study hard, after being admitted to university, you can learn more advanced knowledge." Chen Ziping said.

"Thank you uncle for your encouragement!" Lin Hong nodded, then plucked up the courage to ask, "Uncle, have you ever seen a real computer?" ”

After asking, Lin Hong waited for Chen Ziping's answer expectantly.

"Of course I do." Chen Ziping smiled, and then said, "Not only have I seen it, but I also own one." ”

"Really?!" Lin Hong felt like his heart was about to jump out.

====

There is still a chapter at 12 o'clock tonight, and those who can wait can wait.

Seek demons