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Skratch Lessons: RCA Tutorial / Tonearm Cleaning

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[MUSIC]
What's going on, guys?
I'm DJ Mas.
On behalf of QSU and Mas Customs, I wanna
say welcome to our fix-it segment.
Now, what I do is customize and repair
Technic 1200s,
but these lessons can be applied to almost
any turntable.
Now, the most common thing I see is DJs
coming at me and
telling me that they have signal problems.
Their Serato signal's going backward, or
their Jackal signal is not picking up.
But they, you know, they think it might be
an RCA problem, but the RCAs look fine.
So we wanna do, is take a look at the
RCAs.
If your RCA cables look like this, perfect
cosmetic condition.
You know, they're not scratched, they're
not you know, like bent or, you know,
they're sitting like this for a long time.
If your if your prongs are straight and
not corroded, then most likely,
it's not a RCA problem.
Most likely the problem you're having is a
bad connection between your needle and
the end of your tone arm Right?
So what we do for that is very quick and
very easy.
You're gonna get some rubbing alcohol,
preferably at least 91%, and
you're gonna get some Mother's aluminum
polish.
You can find this at almost any hardware
store I believe Walmart carries it,
Lowe's almo, almost anywhere.
This stuff is very popular.
And what you're gonna need are Q-Tips,
right?
So the first thing you're gonna wanna do
is dip the end of one Q-Tip inside
the alcohol.
And you're gonna push and
twist at the same time on the inside of
your tone arm, without alcohol, right.
You're gonna push the prongs so that you
feel them touching the back wall.
And you're gonna clean the inside circle
of the toner.
Now as you do that you're gonna notice you
know,
maybe that the needle's a little black a
little dirty.
That's gonna pull a little bit of grime
out there.
It's gonna pull a little bit of the dirt
and
whatever was on the surface of those pins.
Some of the oxidation is gonna take out.
But when you're really gonna see them
being cleaned
is when you use the aluminum polish.
Now it doesn't matter how clean this was
when you started.
If you look inside and it looks like it's
not dirty at all I guarantee you it is.
They're, they're always dirty.
Especially cuz a lot of the old school DJs
that weren't getting the signal.
You know, they used to like to lick the
back of their needles and
then put them back in.
After a couple years, you know,
that completely corrodes the inside of the
tone arm.
So, what you wanna do is take another
Q-Tip with the aluminum polish and
just spin the Q-Tip around.
Get some aluminum polish on there and
do the same exact motion as you were doing
with the alcohol.
You're gonna push the needle, or you're
gonna push the prongs in.
You're gonna twist and you're gonna spin
it around the entire encasing.
And after that,
this is what the first Q-Tip I did when I
cleaned this toner arm looks like.
So, you can see it's completely black out
of nowhere,
cuz this one looked pretty clean.
And what you'll wanna do is, use one side.
Clean it very thoroughly.
Take it out.
If it looks like this, I'd recommend using
another Q-Tip, doing the exact same thing.
Clean it out.
And what you wanna do is pull it out to
where it's not as dirty, right?
There's no such thing as overcleaning it,
so use as many Q-Tips as you have to.
As much polish as you have to, just make
sure that when you're done,
you take the white side of the Q-Tip and
you clean it all out one last time.
Make sure it's dry.
Make sure there's nothing in there.
If you wanna go a step further.
You can take alcohol and then polish and
clean the back of your cartridges here.
Clean the back of these.
And you'll be making a solid contact.
Your signal will come back exactly where
it's supposed to be.
Now if after you've done all this you're
still having issues?
Then it might be time to take the next
step and
think about replacing your RCA cables.
Which we'll show you how to do in the next
video we make.
All right?
Well that's all the time we have for
today, guys.
Thank you very much for watching.
On behalf of QSU and Mass Customs, we out
[MUSIC]