00:00As-salamu alaykum.
00:02This kit came to us from Lahiya to repair.
00:06We will repair it.
00:08What is the problem with it?
00:10We will repair it and check it.
00:12First open it and see what it is.
00:14Open it from this side.
00:20Now I will open it from this side.
00:22I will see what is the kit in it and what is the problem with it.
00:27Then I will show you the whole thing.
00:48They have packed a lot.
00:50They have packed a lot.
01:00They have packed a lot.
01:08Now we will see it after running it.
01:15Now we have done it separately.
01:18Let's see what is the problem with it.
01:20Or what is the problem with it.
01:22First of all, we will give it a voltage.
01:26Now we take it off.
01:28These are their wires.
01:30My brother, if the video is long, then do not say that the video is long.
01:34If you see the video, if we do anything on the side, then you will not know the work.
01:41Never say this.
01:43And never try to skip the video.
01:45Try to do it quickly.
01:47Never do this.
01:49Because your time will not be wasted.
01:51If you see that you have to work, then watch the whole video with a little ease.
01:59You will benefit from it.
02:01Give the sensor.
02:03We put the sensor.
02:05This is a one-ton kit.
02:08Whenever you repair it, either remove it from here.
02:12If you are such that the joint is attached and cannot be removed.
02:15Remove this pin.
02:17If you have a joint, then you have to do a tape here.
02:21That tape is the common tape.
02:25See this.
02:26I have to put it like this.
02:28See this.
02:29I will cut it like this.
02:32See this.
02:33I will tell you how to put it.
02:35See this.
02:36I will tell you how to put it.
02:38When the work is done, then it is known that the work has been done.
02:43See this.
02:44You have to put it like this.
02:47Like this.
02:48This is in the case when it cannot be removed from the outside.
02:52If this is removed, then it is better.
02:55Now I give it a voltage.
02:57We have to give the voltage as we did earlier.
03:01In series.
03:03We will give the voltage in series.
03:06This is also a mechanic brother.
03:08He has sent it to us.
03:10See this.
03:11I have started giving current in series.
03:14You have to see below.
03:15Something should not be below it.
03:17It should not be that your work is done.
03:19If there is a small hole, then the work will start.
03:22See this.
03:23I fixed it.
03:24Like the first video was made.
03:26The right kit is that the lights are on and off.
03:29All three.
03:30Our kit is fine.
03:31Let's check what the problem is.
03:33See this.
03:34The light is on.
03:35See this.
03:36And see this.
03:37It is giving us.
03:38See this.
03:39F1 error is coming in this.
03:41Okay.
03:42Now why is this error coming?
03:44What is the problem with this?
03:46Then he came to our brother.
03:48He is our viewer.
03:50Let's see.
03:51And he said that your SMD is broken in every kit.
03:57My brother, now the problem is in SMD.
04:00What should I do about it?
04:02Okay.
04:03Tell me this.
04:04There is a problem in it.
04:06So how can I tell you that there is no problem in it?
04:10Obviously, if you want to make a video, you have to repair it and show it.
04:14Now, first of all, I will check the SMD that there is no problem in SMD.
04:23Instead of adjusting it again and again, it is better that you put it here.
04:27Put it on 20K.
04:28Okay.
04:29Put it on 20K and I will show you its resistance there.
04:32In the screen.
04:33So that your objection is not shown in the screen.
04:36Yes.
04:37Now I am making it.
04:38Check.
04:39The way to check it is that whenever such an error comes, there are a few points on its
04:45kit.
04:46Whatever we check, we know where this thing is.
04:49The problem happened to him.
04:51And what happened to this?
04:52See this.
04:53What is this on top?
04:54See this.
04:55See this.
04:56See this.
04:57This has come off.
04:58See this.
04:59He tried to repair it.
05:00Okay.
05:01He also tried to repair it from below to see if it can be repaired.
05:04Now let's see what the problem is in this and whatever it is, I will also change it,
05:12I will also put it in the right way.
05:14See this.
05:15The way to check it is that from here it is f1.
05:18I am checking this.
05:20Look at this.
05:21Okay.
05:22I am checking this.
05:30When it is checking, then...
05:35Okay.
05:38Now I am checking this.
05:44This is also fine.
05:47Now...
05:49This is also fine.
05:50Okay.
05:52Now I am checking this.
05:56Okay. This is also...
05:58Okay.
06:00Now let's come here.
06:02There are one or two more things.
06:04Let's check this.
06:06It has sides, lines.
06:08One side, two sides, three sides.
06:10So we get to know quickly
06:12where there is a problem
06:14and where there is a problem.
06:16Now I am checking this.
06:20This is also fine.
06:22If I reduce the value of meter,
06:24then from here,
06:26if I do it here and here,
06:28then its reading...
06:30We get to know again and again
06:32that this much reading is coming.
06:34Now its reading is fine.
06:36This is also fine.
06:38There are different problems like this
06:40which I will tell you now.
06:42Now its assembly is fine.
06:44Its system is all fine.
06:46Now this error is coming.
06:48Why is it coming?
06:50Yes, hold it.
06:52Hold the meter.
06:54Now let's check its IC.
06:56First of all, see this.
06:58Here...
07:00If there is no paint touch on its IC here,
07:02then you can touch it here.
07:04Here. Okay?
07:06This is one number.
07:10This is the value of two numbers.
07:12It will show here now.
07:14Okay.
07:16This value is not showing here.
07:18Okay?
07:20Let me see here.
07:22It is not touching.
07:24Okay, let's touch it here.
07:36Yes, apparently this IC is fine.
07:38Okay?
07:43The IC is fine.
07:45And let's check this IC.
07:47Maybe there is a fault in it.
07:48Maybe there is a fault in it.
07:50Here will be 00.
07:53Yes, it is fine.
07:55Here is the ground.
07:57This is VCC.
07:59This IC is like this.
08:01One brother had commented to me
08:03that you have shown this 4 number ground
08:05as VCC and this as ground.
08:07Sometimes my brother
08:09makes a mistake
08:11when he tells it quickly.
08:13And the biggest problem in our mind
08:15is that while making the video
08:16we should complete the video
08:18as soon as possible.
08:20Okay?
08:22This is our biggest tension
08:24that the video should be completed
08:26as soon as possible,
08:28the video should be short
08:30and people should watch it
08:32as soon as possible.
08:34People don't watch a long video
08:36even if we make it useful
08:38as much as we want.
08:40This is also fine.
08:42The reading is coming now.
08:44This is our kit.
08:46The heatsink is open.
08:48Okay.
08:50This is the paste.
08:52It is still fine.
08:54It is not dry.
08:56It is completely clean.
08:58And now we will check it.
09:04See, this problem
09:06is that
09:08the heat sink
09:10is not working properly.
09:11So, this is the problem.
09:13This thing
09:15bridge
09:17short grid diode
09:19and IGBT is fine.
09:21Now the problem is
09:23from here
09:25see from here
09:27and from here.
09:29Now we will check
09:31what is the problem.
09:33First of all, we will check this.
09:42Now, first of all,
09:44we have to check this.
09:46Okay.
09:48See, both the things
09:50can be seen clearly.
09:52Okay.
09:54Now I am checking this
09:56so that
10:01this can be seen clearly.
10:03Okay.
10:05Now I am checking this
10:07so that
10:09this can be seen clearly.
10:12Okay.
10:14The reading of this is not correct.
10:16The reading of the low side
10:18is not correct.
10:20Check on this also.
10:22Now see on this.
10:24Okay.
10:26And on this.
10:28Okay.
10:30The reading of this is not correct.
10:32The reading of this is not correct.
10:34Because of this, this problem
10:36is there.
10:38Now we will change the SMD
10:39or change anything else of this.
10:41The reading of this is not correct.
10:43The reading of this is not correct.
10:45The reading of this is not correct.
10:47Now the problem is in this
10:49or in this.
10:51We cannot say this.
10:53Sometimes this can also be damaged.
10:55Okay.
10:56The reading of this and this also.
10:58Now why did this happen?
11:00We will check this.
11:02Why did this happen?
11:04What is the reason for this?
11:06Now, obviously, if we check here,
11:07this is fine.
11:11See, this is not sharp.
11:13See from here.
11:15One more thing has come in this.
11:17Often the mechanics
11:19check that they only check
11:21this thing.
11:23See from here.
11:25They checked this.
11:27They checked this.
11:29They checked this.
11:31They checked this.
11:33They checked this.
11:35They checked this.
11:37See this is not sharp in between.
11:39So our IPM is fine.
11:41You can check the rest.
11:43I said, okay, brother, I will see.
11:45Whenever I saw that something was wrong with it.
11:47Today the same case came.
11:49In front of you, came for your good.
11:51You also got to know.
11:53I checked this side because
11:55F1 is blinking here.
11:57Now, the SMD check should
12:00be changed.
12:02Anyhow, this is fine, this is also fine,
12:04SMD is fine, but F1 is not ok in it.
12:05Now the problem is that here I see that this thing is not short somewhere in between.
12:12This is the first positive, do you know this?
12:15See this, this is short.
12:18This is the point, its short.
12:20See this, I tell you clearly.
12:22See this, you can check, you can see.
12:28See this, I just opened it in front of you.
12:31See this, see this.
12:32See this, this is short.
12:34In this, this is positive, this is U, this is V and this is W.
12:38Now what will happen, if I check it like this, like this,
12:42then it will tell us that this is not it, this is not it, and see this, it is telling us short.
12:49Now the problem is that if I check all three, then it will never tell us short.
12:54That is why it is important that you should know how to check all the low side and high side from behind.
13:01If you check the high side, then you can see the complete video of this on my channel.
13:07And if not, if someone wants to learn further, then they can come and learn.
13:12Thank you, this kit is now empty, this kit cannot be repaired.
13:16It cannot be done in any case because this is bad, I have checked this.
13:20I will also check this in front of you and tell you.
13:24See this, it will come here.
13:28Sorry, it will be checked here.
13:32Where is it, yes, it came here, at this point.
13:37See this.
13:39Okay, this is also empty, this is broken.
13:43This one is broken, I have made you check it clearly.
13:47This is also broken.
13:48If I put it here, then see this, see this, see this,
13:54this too, it will not tell me here, it will tell me here.
13:58This is broken.
13:59This is also broken and it is broken because the bolts have passed through here.
14:07There are 6 IGBTs in it.
14:09Passed, came here and the current back came here.
14:12This is broken.
14:13As if something is jolted, it is also jolted and it is broken.
14:17There is a spike in it.
14:19If you like the video, then like it, share it.
14:23Friends, subscribe to our channel.
14:25Goodbye.
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