Su Qinghu didn't know the inside story of Xiaoli Tuan'er's full moon party. She only knew that on Sunday, Dadan and Erdan came home after their painting class, solemnly unplugged the TV, and carried the TV to the study.

The study is quiet and spacious. The tables and chairs are clearly visible. There are no corners where anything can be hidden. Even if some small parts fall, they can be found quickly.

It was for this reason that the two decided to dismantle the TV in the study.

Aunt Yu didn't know what was about to happen, she just helped the child lift the TV.

When Aunt Yu saw the two children bring the toolbox, open it, take out the screwdrivers inside and start removing the screws from the TV, she was completely dumbfounded.

"This!" She hurriedly stopped him, "Kid, this is not something you can just tear apart for fun!"

Erdan didn't even look up. "We asked for her opinion, and my mom agreed."

"What?" Aunt Yu was shocked.

Erdan blinked and smiled at Aunt Yu, "Really? If you don't believe me, go ask her."

Aunt Yu: "Okay, don't tear it down yet. Let me ask Xiao Su."

My goodness, this TV is expensive. How can I just dismantle it? What if it breaks? Even if it can be repaired, won’t it cost money? Will the parts be free?

She had heard that some people's washing machines were imported and so repairing them was incredibly expensive.

This TV at Xiao Su's house doesn't look cheap...

She didn't dare to think about it anymore. After talking to Dadan and Erdan, she asked them not to dismantle it yet. Then she turned around and left the study, and trotted to Su Qinghu's bedroom.

"Xiao Su?"

It was nap time, and Su Qinghu and Xiaoli Tuaner were sleeping soundly together when someone pushed her and she suddenly opened her eyes.

"Xiao Su, wake up."

Aunt Yu's words made Su Qinghu wake up immediately.

"What's wrong?" she asked.

Aunt Yu: "Xiao Su, Dadan and Erdan want to dismantle the TV at home, and they said you agreed to let them do it..."

"Yeah." Su Qinghu relaxed his body, sleepiness coming over him. "Don't worry about them."

Aunt Yu had been with Su Qinghu for some time. Seeing her like this, she knew there was no point in persuading her. She sighed, closed the bedroom door for her, and went out.

Dadan and Erdan have already taken apart the shell and are now observing the internal structure of the TV.

The two of them leaned over to look.

Erdan: "Brother, you draw it."

The wiring inside this TV is a bit complicated, so drawing it would be a bit of a project...

Dadan did not shirk the responsibility. He nodded, took a small board as a cushion, put a piece of white paper on it, and drew on it with a pencil.

Erdan watched from the side and occasionally handed them a colored pen.

After finishing the painting, the two of them started to dismantle the interior, trying things out as they went along, and having a lot of fun.

Su Qinghu woke up from his nap and woke up Xiaoli Tuaner as well. He changed his diaper and went to the study to watch the fun.

When he arrived at the study door, Su Qinghu first checked the two people's anti-electric protection equipment. Seeing that there was nothing wrong with the protection measures, he stepped into the study.

"how's it going?"

She suddenly spoke, and Erdan was startled. Then he reacted and moved closer. Su Qinghu bent down slightly, looked at Xiaoli Tuaner in his eyes, and then stood up straight again.

Erdan was satisfied and said with a smile: "Just finished dismantling it, it's okay."

They know which part controls what, but they still don’t understand why it can be controlled. They write down their questions and ask the teacher when the time comes. If the teacher doesn’t know, they will go and ask the TV repairman.

Dadan stood up and stretched himself a bit, "Now let's start the installation."

Su Qinghu: "Then you guys continue, I will just watch from the side and will not disturb you."

Aunt Yu washed the bottle for Xiao Lituaner, filled the bottle that he usually drank water from with water of suitable temperature, brought it to Su Qinghu, and then went to wash the diapers.

In fact, there are only two diapers and they can be washed at any time, but she really can't bear to see her child waste things, especially such expensive things, so she simply pretends to turn a blind eye.

But by the time we had dinner, Dadan and Erdan hadn't finished reinstalling the TV. After dinner, it took them another two hours to finish installing the TV, but the installed TV didn't work.

Seeing that it was too late, Su Qinghu didn't ask them to unpack it again and directly sent them to bed.

As a result, early the next morning, before dawn, Aunt Yu, who was sleeping on the folding bed in the living room, heard the noise. She turned on the light and saw two children dressed neatly walking towards the living room door.

She: “What are you doing?”

Isn't it okay to skip the morning reading class at school? Xiao Su even signed it.

"You continue to sleep, let's go to the study." Erdan said in a low voice.

After saying that, the two of them went straight to the study.

Aunt Yu was impressed by the two children's self-motivated learning and their punctuality in attending morning reading at home every day. At the same time, she was not sure whether the children were going to the morning reading or dismantling the TV.

I glanced at the time on the wall clock and it was only half past four. I looked at the living room door that the two children had closed casually, then lay down and continued to sleep.

In the study, the two of them disassembled the TV again and checked the positions of the circuits and small parts against the diagrams they had drawn previously.

"That doesn't seem to be a problem, right?"

Erdan looked at the drawing paper, then at the positions of the installed TV parts, somewhat confused.

"No problem?" Dadan glanced at him. "Think before you speak. If there's no problem, the TV won't stop working."

Erdan: "...Okay, you're right."

After a while, seeing that his brother was still not doing anything, Erdan began to feel uneasy and couldn't help but remind him, "Brother, repairing the TV is not cheap..."

Dadan didn't say anything.

"Whether we can keep the small treasury we have saved depends on you." Anyway, he had no other choice.

It's not that he didn't use his brain, but he did use his brain and recalled the process of disassembling the TV for the first time, but he still couldn't figure out what went wrong.

My brother is very good at mathematics, physics and chemistry. He had discussed a problem with my uncle Qian Yin before but failed to get any results, so he was taken to the university to talk directly with the professor.

If my brother can't do anything, then I can only go find a TV repairman -

Eh?

"Brother, how about this? Let's ask the teacher for leave during physical education class, bring the TV to our uncle, and let him tell us what the problem is?"

It’s free!

Killing two birds with one stone, right?!

He is a genius at saving money!

"My uncle is related to chemistry." Dadan had to remind him.

Erdan: "What's the big deal! My uncle's colleagues are definitely good at this. Just like you, aren't you good at math, physics, and chemistry? Why can't someone be good at one more subject?"

"..." Dadan, "Don't worry, I'll take a look."

Erdan now had a free backup plan and was in a very good mood. He looked at the small quartz clock on the bookshelf, sat down happily, took the top book from the pile of books he had prepared before going to bed last night, and began to recite.

Hearing the sound, Dadan glanced at him, and received an encouraging look from his silly brother. He then looked away and continued to think about why the TV was not working.