Download "Laptop Battery Charging IC Practical Voltage Signal With Multimeter And DSO @nityatechnology2020"

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Nitya technology

Board view reading

Nitya

Ravi sir

nitya

nityatechnogy

technologynitya

chipleveltraining

laptoptraining

laptoprepairtraining

00:00:02

[Music]

00:00:03

Laptop Repair Training Institute

00:00:10

Today we will see what all the

00:00:25

things need to be required for charging,

00:00:32

so before charging I will tell you that you will have to check some things,

00:00:37

what are these?

00:00:40

Before charging, you will have to check

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which voltage

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is proper. No, if the first Agarwal is

00:00:47

not proper then it will not take four days to fix it.

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Its two mospets are

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303.

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What is pr303?

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So what do we have to check first?

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First of all, we have to check whether our

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voltage is valid or invalid. Okay. If yes, then

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how will we confirm the validity? So

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first of all, after doing power rangers, let us

00:01:37

check whether your

00:01:40

color voltage has reached or not.

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Which seller is it?

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But 303 is

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fine.

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How much voltage should we get above 303?

00:02:05

Now you will have to confirm whether the voltage is available or invalid. From

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which day, the gate

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will confirm to you that the voltage that has come is

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more than the source.

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See how much has come.

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Second, how much is on cricket.

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Shimla at the gate of both. There is voltage,

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it means that the voltage is OK.

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If you want to understand the details, then to

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reduce the charging, first thing is the

00:03:49

retirement.

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Its pin number should come above 20.

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So here 10, 15 and 20,

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see a register above pin number 20.

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What is the value of the register?

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This is

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10 point zero.

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You are

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okay.

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In the beginning,

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where has this one also come? How

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many bolts are there here? 19, so here also

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19 will come and this is the one,

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so first of all let us see the board.

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Look at how many volts are there here, it is

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okay and here it is

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okay, why is it 19 volts at both the places, why

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these two pin holds have

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not come, in this only 19 volts have come

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on both the pins because right now it is already crossing,

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now your If there

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is voltage, it will come here and this one here will

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also come directly, but if it does not switch

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or if you do not get voltage above the color,

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then only this one point gets it,

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only this one point and after putting a register with this one, it

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goes forward to

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this diode. How much bolt A is going on above

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then how much will it go further then a

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little bit

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017 it will definitely reduce after that it

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came here ahead came here

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how much will it reduce after the register there will be

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nothing after the register how

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much is there according to the theory 11

00:07:07

How much is there

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here, it is

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okay to limit the current here so that

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you can see from behind, how much current we have given to it from behind is

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5 amps, but in front, as much

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current as it has is recorded, so much current can

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go forward, register here for that. A number is connected

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here for

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charging. Above its pin number 20,

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you have got 19 V. Okay, after that,

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what else is required to reduce the charging. To reduce this, we

00:07:44

need

00:07:59

this pin number six in the second number. If we are here

00:08:03

above the capacitor. If you check then you will

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know that you have to

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check,

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okay

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you will get it on the third number,

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look at the point of pin number four here, how much is it

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saying,

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how much is there, what will

00:09:14

happen after that,

00:09:35

what will we check after that,

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what will we do after this

00:10:23

pin Number

00:10:32

[Music]

00:10:54

What is the first record for charging,

00:10:56

like we put the batteries together, see, it is

00:10:59

mandatory for the batteries to be charged,

00:11:01

like when we put the batteries, then first of all,

00:11:05

data and clock should be made on yesterday and forever,

00:11:12

then data and You will

00:11:15

not be able to check the clock with a multimeter. What will be checked with a multimeter? If

00:11:19

the voltage is

00:11:21

fine, then

00:11:24

what are the options we have to check the data? This is the only one that will be

00:11:27

found here, the same battery on pin number eight and pin number nine. You

00:11:29

will also get A and C on the connector.

00:11:32

You should get data and clock at three places

00:11:35

and the communication of all three should be

00:11:37

valid among themselves. If there is

00:11:39

no communication between any of the three then your

00:11:42

battery will not be charged.

00:11:44

Okay, so battery charge. Understand battery charging.

00:11:47

For this, first of all we

00:11:48

see its connector, where is the battery connector,

00:11:50

then to see the battery connector, if

00:11:53

you copy this also, then you will

00:11:55

reach the battery connector

00:12:01

[Music]

00:12:05

This is

00:12:09

number 13 on the battery connector and pin number

00:12:16

13 and If pin number 15

00:12:23

works then one three punch from above seven nine 11 13

00:12:29

this pin number 13 is ok

00:12:35

[music]

00:12:52

333 is being found because multimeter will

00:12:56

not be eligible to check our data

00:13:05

then even after installing battery pin number 13 and

00:13:07

pin You have to see the number 15. If

00:13:10

this is the case

00:13:15

then you will be able to edit it. So if you are checking with a multimeter,

00:13:19

then you just have to see whether

00:13:20

three volts are mixed here at 13 and 15,

00:13:22

then you will also get it like this. Apart from this, the difference between

00:13:24

one and the other is I have an important pin, isn't

00:13:26

this the pin, there is one more okay,

00:13:31

this is number 16,

00:13:37

number 16,

00:13:39

Kapil number 16, which one will be there, in this,

00:13:48

181 is okay

00:14:02

above number 16, without,

00:14:13

after installing the battery,

00:14:16

after installing the battery, you say this, take it.

00:14:20

This is what happened, I told the laptop that the battery is charged,

00:14:38

if that is the reason why it is not

00:14:41

charging, it is like that, it will not be able to understand that my

00:14:44

battery is charged,

00:14:45

okay today, if it will not know, then it

00:14:47

will not even charge, so it is low here. It is

00:14:50

important that you are fine at this point, with and

00:14:53

without battery. Apart from this,

00:14:57

after installing the battery, data and clock will be generated. To

00:15:01

check the data clock, you will have to

00:15:04

take the help of DSO. Without

00:15:07

dress, you will not be able to check. Okay, now

00:15:10

check pin number 15. Please note that above pin number 15,

00:15:13

data is being generated with the battery.

00:15:18

This data is coming in between. Let me make the data a

00:15:21

little bigger,

00:15:55

but when will this happen when the battery is connected, when the

00:15:59

battery is removed, then normally here

00:16:00

without battery, without battery. No data will be received,

00:16:08

its data will start, no battery is charged,

00:16:14

your data charge will not be

00:16:18

cleared, apart from this,

00:16:25

what changes will come, I told what

00:16:28

changes here, the first change will come here

00:16:30

and its date and clock should be made,

00:16:39

its information should be made.

00:16:54

This one is fully connected, see,

00:17:07

okay, what else

00:17:11

is mandatory for charging? What is your mandatory for charging, that

00:17:14

these two points here are

00:17:18

such N and such P, there should be

00:17:20

proper connectivity here,

00:17:23

if ever there are many In this case, we will see at which

00:17:25

point your register is installed, then

00:17:28

you have to check the register also,

00:17:31

okay, what is

00:17:47

mandatory for charging,

00:17:49

ACP, ACN, SARP and Sharan, is it okay? Apart from

00:18:00

this,

00:18:07

how many votes are you getting here now?

00:18:09

Voltage divider. Calculate it, I will

00:18:11

check and tell you.

00:18:19

Okay, now how much do we have to check. We have to check pin

00:18:21

number 10, how

00:18:24

much volt will we get, how much

00:18:27

volt will we get,

00:18:30

how much is our calculation telling us, how much should we get

00:18:51

according to the voltage divider, see here,

00:19:05

okay.

00:19:15

Current information is

00:19:41

fine without battery. Let's check its

00:19:44

pin number 7. What is its pin number? 7 is

00:20:17

fine without battery. Zero point. In

00:20:23

this way all its pins will be

00:20:27

confirmed to you and there will be no problem, no point will be left. The

00:20:36

voltage in it will be

00:20:38

as much as the battery voltage. This will be the same amount of RP and

00:20:40

all these, we check that also,

00:20:42

how much should be the pin number 13 and pin number 12, we

00:20:46

also check and tell

00:20:53

how much it says is 16.5, whether the

00:21:09

battery is charging or

00:21:12

not with a multimeter. First of all, with the help of a supply like yours,

00:21:15

you will know that the battery is being charged

00:21:18

because when the battery is not charged,

00:21:20

the description will be less, like when the battery

00:21:23

starts charging, its ampere rating will increase,

00:21:34

so see here which is the charging coil of the battery.

00:21:37

This one is the charging coil of the battery

00:21:38

whose number is pl302.

00:21:43

First let's check it.

00:22:05

Okay, now we will install the battery. Keep an

00:22:09

eye on the screen.

00:22:13

How much happened after installing the battery.

00:22:19

Check again

00:22:45

16.6. There is a slight variation in voltage. So there

00:22:48

should be a slight voltage variation.

00:23:16

If there is a voltage variation here, it means the

00:23:19

battery is charging. If not, it will not charge. This

00:23:25

will confirm whether the battery is charging

00:23:29

or not. When you have a

00:23:31

multimeter, then the multimeter can measure the amount. You

00:23:33

can confirm, if anyone has, how to confirm from DSO whether the

00:23:36

battery is charging or

00:23:37

not, I will also show you this.

00:23:39

Now see this, you guys pay 150 and then if you

00:23:42

are in battery mode, then what

00:23:44

is the voltage in battery mode, you will simply see it.

00:23:48

Wallpaper

00:23:49

Simply you are getting 14 volts as we

00:23:54

connect it to the adapter

00:23:59

as we connect it to the adapter its

00:24:02

switching starts, if this happens

00:24:10

then the battery has to be charged due to

00:24:15

which you can confirm that Is

00:24:18

your battery charging or not?

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