today's MacBook Air what did they do to
you little MacBook show me where they
hurt you oh god what did they do to you
look at this can you even count
everything that's broke on here so the
LCD connector doesn't just look liquid
damaged this looks like soot you notice
how these connectors are typically kind
of goldish in color they look like this
and when the pin burns off it burns but
you don't have this shooting out of
discoloration across the entire
connector that's come that's a new to me
even the diode has a burned pad the
capacitors are totally burned this would
probably just get knocked off the board
okay maybe not these resistors are
barely held on I don't know what's going
on over here wow so many points that are
totally broken so much stuff to remove
and start over this board is and we do
that like this
so we surrounded in an Tek NC five five
nine flux
now we're gonna remove this nasty LCD
connector and we're gonna replace it
with a nice happy new little LCD
connector let's get this old mean LCD
connector off of the motherboard there
we go
oh it seems like the pads for sending
backlight to the screen appear to be
said well that's fine it seems like we
could just add a little bit of folks and
make those some happy pads again very
good so we're gonna take that nasty old
let free solder and we're gonna add some
happy little leaded solder we're gonna
wake it all off look at that nice
happily wycked solder it's gonna remove
all that cancer from this board no more
cancer beautiful okay we're just gonna
go into the affected area and as you can
see these two pads here are completely
ripped off of the board but that's fine
because we can run a little jumper wire
so I'm just gonna scrape back and forth
back and forth and here we go there we
go we're just gonna reveal that
backlight trace and then we'll be able
to run a happy little jumper wire to it
so we'll do that towards the end we
still have quite a few components to
remove
this little capacitor doesn't make me
happy it's got to go this diode probably
still works but it's got to go and look
at that Wow
the back light output pad for the diode
has come almost completely invisible
I've never seen that before I've never
seen the pad for the diode actually
corroded just like that this is some
crazy damage
somebody must have really not like this
little MacBook that's okay little
MacBook we're gonna make you happy again
next up we're gonna remove these unhappy
mean old capacitors over here these are
the capacitors that store the voltage
for backlight output after the LED
drivers done switching and you've got to
go and after that we've also got this
capacitor this other capacitor the
transistor that sends the power from the
backlight fuse to the circuit the
backlight fuse the treat resistors that
tell the trends is backlight transistor
to turn on other and what the heck the
pp 3 before 2 circuit is also corroded
and the PP 3 V 4 to in rush limiter is
corroded and the PP 3 V 4 to capacitor
is corroded and I think there was a
diode over there that I probably just
ripped off the board but that's fine
we're gonna put a nice fresh new diode
over there in its place will be a
happier gentler diode a diode that
didn't have any liquid damage there we
go beautiful if they're fixable they're
fixable and if they're not fixable we
give them to Paul until they are fixable
okay we're just gonna scrape away all
that nasty rusty corrosion and the flux
that I put on the board combined with
the flux inside the solder come by with
a scraping motion is going to remove a
lot of that junk gonna pop right off and
it's gonna make our board nice and clean
check out what happens when we go over
the board again with our goo Twix
available on stored out Rossman
group.com those solder pads can't wait
to get some nice new fresh solder that's
right little MacBook
look at that look at that that pad for
that capacitor that once wasn't once is
again beautiful now we're gonna go over
to the P P 3 V 4 2 circuit P P 3 V 4 2
circuit is responsible for creating PP 3
before - that's the power rail required
for the machine to turn on for the SMC
to turn on for the charger to turn on
for everything to work and unfortunately
it looks like this board has an abused a
little PP 3 before - circuit but that's
fine we're gonna take that little abused
PP 3 before - circuit and make it happy
again there we go look at you it's gonna
scrape away all the junk in that path
gonna make you a happy little board now
you may notice that we have a what looks
to be a little bit of a broken probe
point over here but that's no problem
for us can just fix that with a little
bit of solder it's fine nothing wrong
with that it appears that that is
completely broken so that's not going to
conduct and that's where the little
diode is going to go to ground to pull
the voltage on the gate of the inrush
limiter down as you can see when I touch
the board
yikes so this this board is kind of
peeling like leprosy this boards got
some leprosy going on so we have to be
very careful with our scraping now who
hurts your little MacBook was it Tim
Cook I bet it was Tim Cook that bastard
never conformal coated you
he didn't even cover you in tape or put
spill holes in you I'm sorry little
MacBook I'm sorry Tim Cook did this to
you I'm sorry that's him cook hurt you
all right we've got a happy little
jumper put in place there that little
jumper is gonna allow our diode speak to
the resistor it's gonna access a little
voltage divider which is going to open
up this inrush limiter and allows
sixteen volts through to my computer
now it's gonna move this wire back and
forth back and forth just like the third
or fifth track on Leah's age ain't
nothing but a number back back fourth
fourth back back fourth
yeah I would give that section a happy
little cleaning now we're gonna put on a
new LCD connector I'm just gonna grab
one from here and solder it on look at
this board look at this abomination I'm
able to play battlefield on this at all
300 FPS thank you okay we're just gonna
drag solder like that look at all those
beautiful happy little pins I'm done
with the professional sounding showing
it started out as a joke on a couple of
people on YouTube that will cram two or
three ads in a one video but it kind of
got carried away so I haven't tried a
pixel 2xl phone is the pixel the phone
where they made fun of Apple for
removing the headphone jack and then
simultaneously remove the headphone jack
cuz I'm not good at keeping up with all
the latest phones and whatnot because I
know that there was one jackass
manufacturer that got rid of the
headphone jack
while simultaneously making fun of Apple
for getting rid of the headphone jack oh
god yeah screw them if you don't have a
headphone jack I just can't take you
seriously but the thing is oh let's say
I'm on the subway I'll be editing video
on my laptop but then I'll switch over
to my phone when it's time to switch
trains or something so I'm constantly
moving back and forth my headphones
between my laptop and my phone which is
easy when there's a plug but a pain in
the real royal pain in the ass if I have
to unpair and repair every time
that's not happening so yeah if you
you're not selling me a product without
a headphone jack unless it's like free
I'll deal with it if it's free yeah
screw that that's a pizza you got to be
really damn tone-deaf to make fun of
Apple for something and then do the
exact same thing that you're making fun
of Apple for okay let's get that diode
slid into place Wow look at how that
diode just popped in a place that was
beautiful
[Music]
- the dun duh-da dun-dun dun dun dun
canada definitive dad at an anti they
dated down to downtown the sports never
gonna fan spin again because corroded
pads of god no conductivity
because there is a backlight holy
look this board is giving a backlight I
can't believe this piece of
actually works I'm gonna put this
through the ultrasonic cleaner just so
that you can see what it looks like when
it's clean and after this board is done
going through the ultrasonic cleaner I
think the cleaner is gonna need new
water now we can take a happy little
look at what this board looks like after
the ultrasonic cleaner remember what it
looked like before well this is what it
looks like now
that's a happy little back light output
diode happy little back light output
capacitor happy little set of jumper
wires for the burned-out section and the
board happy little transistor to turn on
the back light circuit another happy
little transistor a happy little back
light fuse that's our P P 3 V 4 2
circuit look at that you can see that
we've got our nice little jumper wire
over here because there was a hole on
the board in that section
I got a nice jumper wire connected over
there you got our back light diode on
over here let's just remove that little
excess solder ball get out of there
quality control baby got our DC input
transistor it allows a DC in to go to
the PP 3 V 4 2 circuit got our 2 in rush
limit resistors there and that's that
look at how pretty this looks
the board has leprosy you can see
everything coming up from it as soon as
you touch it it just comes right off it
looked like a house fire because there
was a black layer of soot over
everything every time I removed to a
component I had a scrape black stood off
of the pads
look at that
it's quality this is a work of art I
don't even want to give this board back
to the customer I kind of want to hang
it on my wall
any of you ever fixed boards where you
don't want to give it back to the
customer you'd want to just kind of hang
it on the wall so you have it there
Jessa Jones does that she likes to make
boards or pets I'd like this board to be
my pet
we were able to rear scrape away where
that trace was broken and reattach it to
the resistor oh that's so that's a
clusterf rack right there
Wow that poor little MacBook yeah that's
beautiful look at that it looks like a
little love triangle this board looks
like I would really like to be dead
board you're gonna love the way you look
I guarantee it look at it this works
that is my work of art that is the back
light output diode going to a backlight
output capacitor going to the actual
backlight output on the LCD that's it
for today and as always I hope you
learned something so I have another
board here to touch bar missing p.m.
sleep s5l and