1

00:00:01,800 --> 00:00:05,100

At this time, let's touch the pins with the tweezers

2

00:00:05,866 --> 00:00:07,366

To check if it is loose

3

00:00:09,800 --> 00:00:11,966

The second one is bit

4

00:00:13,200 --> 00:00:14,500

So is the first one

5

00:00:15,666 --> 00:00:17,866

The first one has been welded indeed

6

00:00:18,433 --> 00:00:20,666

But we poke deeper in the second position

7

00:00:22,300 --> 00:00:27,600

You can also use a multimeter to measure this position

8

00:00:28,800 --> 00:00:35,400

As long as the water enters and corrodes and burns black, most of these pins are power supply pins

9

00:00:36,200 --> 00:00:40,233

It's basically good to be able to measure the ground value at this location

10

00:00:41,166 --> 00:00:44,166

If you suspect that the welding is not stable

11

00:00:45,500 --> 00:00:48,633

You can take a blade and scrape these places again

12

00:00:49,600 --> 00:00:52,166

Let the solder stick it a little more firmly

13

00:00:54,133 --> 00:00:56,300

The first and third should be fine

14

00:00:56,866 --> 00:01:00,600

The second one, it seems that the solder stick is not very good

15

00:01:01,500 --> 00:01:04,500

Scrape it off, let's do it all over again

16

00:01:19,900 --> 00:01:20,933

Heat it again

17

00:01:36,800 --> 00:01:40,066

In this way, it can be guaranteed to be welded

18

00:01:42,300 --> 00:01:45,166

We can also scrape the first pin a little bit more

19

00:01:46,966 --> 00:01:50,000

The first one is sure to be soldered this time

20

00:01:50,400 --> 00:01:52,533

But in order to prevent bad welding

21

00:01:53,300 --> 00:01:54,966

You could add a little flux

22

00:02:10,700 --> 00:02:15,866

This is the treatment for water infiltration and corroded plastic connectors