after the positioning

let's start welding

during the blowing process of the air gun

we must be carefully observed

a position where the solder joints are in contact

with the pins below

take a look at the tin of the starter joints

at this location

now

the tin of each starter joints is very round and full

but when heated to a certain temperature

the plastic connector will stick to the melted tin

if so this edge will become relatively flat

now we see this

every point is very rounded

later on it'll leak out a little from the edge

it'll become flat

when it becomes flat it means that it has been welded

let's re a line again and start welding right away

let's begin

soldering is the same as when dismantling

the Aragon needs to be swept back and forth

ensure that the temperature of this plastic connector

is evenly heated

now some pins that have been soldered take a break

see what is soldered and what is not soldered

let's take a look at this connector

top left row

the first of 3 pins have been fully welded

no soldering on since the 4th

this joint is pretty rounded

so is this row

all these pins are also not connected

when connected the edges are flat

if it's not connected the bottom is rounded

this is a way to observe the soldered melt

then we continue to heat

normal welding time will be shorter

we're deliberately stopping in the middle

now then the flux is almost evaporated

let's add a little more flux to the surface now

one is to make the solder joints more accessible

another is to protect the surface of the plastic

the edges are slowly flattening

stop heating

check this edge

it's different now

now it's welded