1

00:00:02,100 --> 00:00:03,600

Then we clean it up

2

00:00:04,233 --> 00:00:07,266

Dip a little PCB cleaner with absorbent cotton

3

00:00:13,266 --> 00:00:16,833

In order to speed up the evaporation of this PCB cleaner

4

00:00:17,866 --> 00:00:20,233

We can blow it a little bit with the air gun

5

00:00:21,800 --> 00:00:23,666

Now we have the line connected

6

00:00:25,333 --> 00:00:28,733

Then put the copper wire just into the gap of the component

7

00:00:30,300 --> 00:00:32,000

Don't let it stick up high

8

00:00:32,833 --> 00:00:37,800

In this case, it is easy to touch it during the process of installing the motherboard

9

00:00:38,033 --> 00:00:40,333

Then we also need to check some other locations

10

00:00:40,566 --> 00:00:44,500

For example, the location which is very close to the solder joint

11

00:00:44,733 --> 00:00:46,266

Is the copper wire tinned

12

00:00:46,566 --> 00:00:52,266

If the copper wire is tinned, it will definitely cause a short circuit when it is placed on this component

13

00:00:52,533 --> 00:00:57,066

The places haven't been tinned are all insulated,such like this place

14

00:00:57,400 --> 00:00:58,800

It won't short circuit

15

00:00:59,000 --> 00:01:00,433

Fix with green oil

16

00:01:02,966 --> 00:01:04,933

No need for a lot of green oil

17

00:01:05,466 --> 00:01:08,100

It is enough to stick to the surrounding components

18

00:01:15,300 --> 00:01:18,533

Also put it a little bit closer to the solder joint

19

00:01:19,233 --> 00:01:22,966

Prevent it from blowing loose when blowing other components

20

00:01:28,533 --> 00:01:30,933

Well, the green oil is ready

21

00:01:32,100 --> 00:01:34,566

Then we cure it with a UV curing lamp

22

00:01:42,800 --> 00:01:46,666

If the green oil is not cured, we can continue to cure it

23

00:01:49,600 --> 00:01:50,866

Touch it with tweezers

24

00:01:51,533 --> 00:01:53,433

This green oil has solidified

25

00:01:55,100 --> 00:01:56,866

No need to continue curing

26

00:01:58,733 --> 00:02:01,366

This is how we fix the PCB circuit defect

27

00:02:02,100 --> 00:02:06,000

In this demo, the maintenance distance is relatively short

28

00:02:06,300 --> 00:02:07,600

It's easy to observe

29

00:02:07,733 --> 00:02:11,500

In fact, it may encounter a long distance during maintenance

30

00:02:12,100 --> 00:02:15,233

Suppose there is a wire from this location to this area

31

00:02:15,500 --> 00:02:18,900

Then there is a component, both of wires are conductive

32

00:02:19,233 --> 00:02:22,966

But when the measurement fails, the same method can also be used

33

00:02:23,733 --> 00:02:27,033

Operations that span too far are not easy to observe

34

00:02:27,566 --> 00:02:29,933

So we find a relatively close point

35

00:02:30,466 --> 00:02:31,833

Method is the same