1

00:00:03,566 --> 00:00:06,200

Next we go to the top of the board to solder

2

00:00:06,833 --> 00:00:08,266

Clean the mainboard first

3

00:00:55,400 --> 00:01:01,100

After cleaning, check whether the glue on the side has been scraped clean

4

00:01:51,000 --> 00:01:56,866

When adding solder paste, it only needs to be added to the corresponding solder joints

5

00:01:57,300 --> 00:02:01,533

There is no need to add the position where there is no solder joint

6

00:02:01,933 --> 00:02:04,400

Next we place the chip

7

00:02:05,966 --> 00:02:08,433

One pin has made a mark

8

00:02:20,300 --> 00:02:26,600

Boards like the Huawei series will have alignment lines for chip placement.

9

00:02:28,266 --> 00:02:29,833

Align this line

10

00:02:30,266 --> 00:02:32,833

Next we start heating and welding

11

00:02:35,466 --> 00:02:38,233

When loading, it is best to bake it at low temperature first,

12

00:02:38,500 --> 00:02:40,533

and then put it on high temperature

13

00:02:43,000 --> 00:02:47,266

The temperature is also around 200 degrees, blow it for a while

14

00:02:52,266 --> 00:02:56,200

This ensures that the chip will not go wrong

15

00:02:59,466 --> 00:03:03,300

Other chips are basically not so delicate

16

00:03:04,200 --> 00:03:08,233

The font chip is afraid of heat and prying

17

00:03:09,000 --> 00:03:12,100

So we must be careful when disassembling the font chip

18

00:04:17,166 --> 00:04:20,400

It's been baked for two minutes, let's add the temperature

19

00:04:20,833 --> 00:04:24,900

For welding, the temperature around 300-320 is fine.

20

00:04:26,400 --> 00:04:30,300

Because the medium temperature tin has been replaced,

21

00:04:31,033 --> 00:04:33,766

it is obvious that the chip has moved a bit.

22

00:04:34,566 --> 00:04:36,333

This is basically installed

23

00:04:37,166 --> 00:04:40,533

You can use tweezers to push gently from the corner

24

00:04:42,066 --> 00:04:46,766

Ok, this font library has been disassembled