fall at hogwarts

Chapter 141 Unlucky Circuit Repair

For a student of science and engineering, hands-on ability must be strong.After all, after you go to the biology laboratory, your instructor may ask you to move the equipment.

Or clean up when you're ready to leave the physics lab.Or, after you filled the reagents from the chemistry laboratory, the teacher took you to get the original solution in the barrel.

In short, you will always find that you only need to sit in the classroom, pick up a pen, and write on paper for your major; or hold a test tube and an alcohol lamp at hand to observe the phenomenon of liquid boiling .Then after class, look for a partner, talk about love, and take a trip during the holidays by the way,

A situation like that does not exist, and if it does, please wake up and say it again.If there are any, please take out your books on probability theory, advanced mathematics, and calculus and read them again;I'm sorry to bother you.

At this time, I hated the teacher for not listening carefully when he was teaching "Basic Circuit Board Repair".

"If the circuit board to be repaired has large-scale integrated circuits on the area to be repaired, attention should be paid to the reset problem. Then, it is best to put it back on the device before testing, and try to turn on and off the machine repeatedly. And press a few more times Secondary reset button. Common failures of crystal oscillators include internal leakage and internal open circuit... If you don’t know the specific damaged parts, you can take the pictures below and compare them one by one according to the work area.”

Looking at the paused video on the PAD in his hand, Ed scratched his head irritably, comparing the differences between the ones on the circuit board and those in the video one by one.

"Could it be here?" Ed placed a small aluminum block on a certain place, and touched the circuit board with a hot laser pointer. The aluminum on it melted quickly, and then turned into a small ball under the action of tension.

Next, use a thin steel wire to touch the aluminum ball to break the surface tension, and then the steel wire will form a pile of aluminum to connect the broken line.Connect this disconnected line, and connect the other disconnected resistor.

After half an hour, Ed was sweating profusely, and finally put down the hot laser pointer in his hand and connected the circuit:
"This is simply Zhu Bajie putting green onions in his nose, just pretending!" Then he took out his magic wand: "Restore as before!"

The seventh time I did it again, everything was reset to zero. After working for a long time, the electricity was connected, but it almost exploded.

Throwing the circuit board aside, there is actually no technical content, and it can be done by technicians who specialize in circuit repair outside.The real difficulty is the chip of the sequencer. If the chip is burned, everything will be in vain.

"Pick it first, I will." Ed took out a whole set of tools from his pocket, including screwdrivers of various sizes from large to small, and then pliers, thin wires, splicing guns, knives...

Disassemble the other part of the sequencer, this part is the series-parallel circuit for junior high school physics learning.It's relatively simple, just follow the video and connect it.You only need to slowly connect other simple fuse circuits, and repair the burnt baffle.

As for some places that require special tools, Ed took out his wand, slowly manipulated the magic, and connected the places that the pliers couldn't reach.

Use pliers to cut a small section of wire first, then use the levitation technique to send them to the place to be connected, then use the flame spell to heat the center of the wire, heat it instantly, and then push the wires at both ends forward, and the metal is welded together , and it's done.

One drop, two drops, fine sweat appeared on the forehead, temples, and even the tip of the nose, and then gathered together, some along the hair, some along the texture of the skin, gathered to Ed's chin, drop by drop to the desktop.

If this kind of subtle manipulation is seen by Lemay's father, he will definitely slap Ed's head: "Before doing anything! Can't you ask dad?! This kind of manipulation will hurt you of your brain! Do you still want your walnut head?"

The more delicate an item is, the more likely it is to break down and the harder it is to repair.When the last broken circuit was stirred together by Ed's hands, after wrapping it with tape, he lay on the back of the chair, not wanting to move.

It would have been nice if we had bought cheap instruments back then.Although it takes up some space...

Then, as the spirit relaxed, a powerful tingling sensation hit my mind, and it felt like the whole world was spinning.

After lying on the chair for a while, the drowsy feeling in the brain disappeared slightly, and then Ed stood up unsteadily, knocking the two circuit boards into his pocket.Lying down on the magic carpet again:
"Bant, take me back, I have to sleep well."

When they left the entrance of the cave, the small animals that had fallen on the ground had disappeared, but Ed knew that nothing happened to them when he saw two Bowtruckles squatting under the tree roots doing bad things.

Seeing Ed coming out, a ladybug lying on the tree trunk released its elytra, flew to Ed, and hid in Ed's clothes.

Fox, who just came back, looked at Ed suspiciously. It was very strange why this annoying human came out of the ground. It seemed that the tree god's attachment was true.

"Gerry, I'll take a nap." Ed returned home, saw Gray was holding a piece of paper in his hand, and wanted to talk, he raised his hand and interrupted: "Is there anything, I'll talk about it when I wake up."

"Okay, little master." Gray bowed to Ed, and then watched Ed go upstairs.

As for the person standing next to Gray, I'm sorry, it was too sleepy, so Ed didn't pay attention.

This is Tiberus Ogden. He is wearing a suit and has a briefcase under his arm. He looks like he is on business.Ogden pointed to Ed who was dragged up to the second floor by the magic carpet: "Mr. Flamel seems to be in a bad mood. Do you need me to call the doctor at St. Mungo's Hospital for Magical Injuries?"

Gray looked back from the stairs, snapped his fingers, and the teapot and teacups in the kitchen flew up: "Mr. Ogden doesn't have to worry about the little master's affairs. Regarding Mr. Malfoy's entrustment, I think we can Sit down and talk.

After all, I still have to listen to my master's opinion.Do you like drinking black tea or green tea?Like sugar? "

"Is there coffee?" Ogden followed Gray to Gray and Tori's bedroom, and sat at a small round table in the room.

"Sure, milk or sugar cubes? Or both?"

"No need." Ogden put the handbag on the table.

Hearing Ogden's words, Gray smiled: "It will be very bitter."

"But the refreshing effect is good." Ogden took a sip of the coffee Grey poured for him, and all the organs on his face squeezed together: "Wow! It's so bitter!...?"

"Sir, please take your time, the master will be here soon." Gray took out a round mirror that was only half the size of a palm from his pocket.

(End of this chapter)