#tutorial #belajarelektro #tvrusak
salamualaikum warahmatullahi wabarakatuh friends, meet again at your
repair shop, where novice technicians gather. OK, friends, while
waiting for Imsak time, while waiting for Imsak time
, we will repair the Empolitron television. Let's see the damage.
OK, you can see the Polytron TV with damage like a person with worms
. -just blink, okay, without warning, let's dismantle it,
smooth,
fine
, okay, friends, this is the embodiment of the machine like this, if it flashes
, if it flashes, then Mak, then focus focus focus. Be careful, don't
blink. If it flashes like that, then we will immediately focus on it.
transistor eh horizontal transistor Sorry, horizontal transistor is the wrong name,
friends, let's just focus on the horizontal transistor.
Is it broken or not?
This set of techniques is closed,
friends. Let's just check, friends, here's one Oh, I can't see it,
sorry. Here, please look at the apometer needle, so here,
friends, one 2 3, let's turn the
middle leg or the emitter leg back and forth, and we'll see this. OK, it's
safe. OK. This is safe, friends, for
horizontal transistors, it's safe for horizontal transistors,
it's still safe, then, then. So then from B plus this isn't a bit complicated, it's a bit
complicated. In the past
it was like
this, then we'll go straight to the
B voltage section, here, BPL, run here, run here
OK, wait a minute, I can't see it, let's take a look at the diode first, OK,
good, let's see. here, here and here, let's see OK, friends, there is
a path to B plus set, friends, focus, focus, focus
, from B plus, tek tek, there is an R which is directly connected to the leg of B
plus, it doesn't seem to be connected, it's not connected,
friends. -friends Oh,
connected, connected, friends, this
is connected, connected, it's still good, but why is he like that?
Okay, we'll go straight into esr mode, we'll check the LCOB
Plus section
OK,
that's good, friends.
OK, this is good, but this is The TV won't start
OK, I'll open it first OK, let's continue. So before the measurement before
the measurement, usually if it flashes like that on the
horizontal part of the transistor, it's usually broken, but this is what we're testing, we're testing the horizontal transistor
and it's fine, so I want to solder it. re-soldering first usually
happens like that just because the soldering is loose. Then we want to re-solder it
first so the most important thing is to look at all the suspicious parts
first, friends, it's the same as this, there's also focus, focus
, focus, friends, it looks like this. it's like there's a bracelet, it looks like
there's a bracelet, so I'm going to wire all the parts,
okay
, okay, there's feedback too, I want to wire it, in the feedback section,
it's really important that we wire the legs of
the
small transistor. Dear, what time is it, dear
? 0 Not yet, dear. Isn't it B lagging watching the video? It's
not dawn yet, right?
Your ears are plugged in, honey. Mom's ears are plugged in. I'm going to smoke another cigarette. I'm afraid it's bad.
Diak water, dear
OK, let's just
try it out,
is the indicator still flashing or not?
OK, it's not flashing anymore, friends. It's no longer flashing, it was flashing.
Now it's not. Now we'll look in front. Let me install a
fake antenna. Let's look in
front
. OK. Nothing can be seen yet. Is
this not a big screen or what
? OK, nothing can be seen. Let's look. Let's measure the voltage,
friend. -UK friends, yes, I've turned it off, darling.
Okay, but this is there, it looks like it sounds like there's
a sound, friends, it's like there's a sound, but how come
there's no voltage, okay, let's test, we'll test, check the RGB voltage.
OK, there's also video voltage, friends. Voltage. the video has a G2,
let's see
OK, this is a G72, hang on, hater, this is the G2,
wow, G2 is only 24 volts, G2 is only 24 volts
let's
see, mute, no idea
, the voltage is 8 volts. Okay, 8 volts are there, but
G2 is only 23 volts Ar, I want to try it out Hit the comeback scene
OK, friends, I'm big, sometimes it goes to 300,
friends, 500, 500, so this is the playback, which is the problem,
friends, the dipback now has 500 volts. Let's look ahead,
friends. Friends, let's look
ahead. OK, that's the problem. Actually, there is
a problem behind the back, friends,
sometimes there is voltage or not. This is a possibility, a possibility, a possibility.
First, there is a soldering part that is a little loose. Secondly, there is
also a problem like that, so note it. It's important for friends, if
the TV is flashing, if the TV is flashing, immediately focus on the
horizontal series like that and if the horizontal is not there, the stall is not there,
we just repeat it. So if the flashing becomes thin, the signal is flashing,
there are two types, there are two types, the first flash is accompanied by the screen is also
flashing. Well, that's a rare disease,
21 окт 2024
