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TechTranscript
00:00As-salamu alaykum.
00:02This kit has come to us for repairing.
00:05And this has been sent to us by...
00:09Who has sent it?
00:10This has been sent by Haider sahib from Multan.
00:13He has sent it.
00:14E5 carriage.
00:16Let's open it and see which kit has been sent to us.
00:19And what is the problem with it.
00:30Now, this kit has come.
00:51This is the E5 carriage.
00:53He has put an IGBT on it and sent it by tape.
00:57The kit is in good condition.
01:02It is a clean kit.
01:05It is a new kind of kit.
01:07Let's check what is the problem with it.
01:09Because E5...
01:10First, let me check it like this.
01:12So that we will know what is the error in it.
01:16And what is the reason behind it.
01:19See, I have put the director on it.
01:22There are many videos of my E5 on the channel.
01:26Try to...
01:28It is a good channel.
01:29We tell everything right in it.
01:32Subscribe to it immediately.
01:34So that you can get our videos again.
01:38See, we have put it like this.
01:40Now, I will give it voltage.
01:41I will put it on series.
01:42You have to put the director on series.
01:44On 200W series.
01:47See, our bulb is fully lit.
01:50It means something is short.
01:52Let's remove it.
01:53First, let's check its short.
01:56In this...
01:57Now, we have put series in it.
01:59Something is short.
02:00Now, I will see.
02:01I will remove it from here.
02:03Because it is short.
02:04Capacitor is also 4.
02:05It will not have.
02:06First, let's check its short.
02:09I will see from the meter.
02:10If it is 220 from here.
02:13It is short from here.
02:14If it is MOV ZNR short.
02:16It will give us a beep meter here.
02:19If it is from here.
02:20It will not give us a beep.
02:21See, it is not giving a beep.
02:23It means that it is E5.
02:25But it is not giving a beep.
02:26It is short from here.
02:27Let's see something.
02:28What is the problem in it?
02:30In fact, they have done a lot of work in it.
02:33See, I will show you here.
02:35In the screen.
02:36See, they have done a lot.
02:38See, on the kit.
02:39See, a lot.
02:41See, a lot of work is done on it.
02:44See, the IC is also not installed properly.
02:46And see, a lot of work has been done on it.
02:49Let's see the heat sink.
02:50See, let's remove it.
02:55Now, let's open all the screws.
03:01We have removed the heat sink.
03:03Let's put it here.
03:05Now, I will remove all the screws.
03:10I put this screw.
03:11Let's put it here.
03:12There is no screw left.
03:13Okay, it is done.
03:15See, they have removed the IGBT.
03:19Now, let's see what is the shortage in it.
03:24In fact, see this.
03:26Now, show me.
03:27What have they done?
03:28So, check the whole problem from here.
03:31See this.
03:32See this.
03:33Everything is installed again.
03:36This problem is only because the IGBT was short.
03:41Due to short, it was installed again.
03:44When it was installed again, it must have been short again.
03:46Because of which, the print and everything is burnt.
03:50Now, let's see what is the shortage in it.
03:59This is fine.
04:00Now, let's check it on the diode.
04:02Let's check it on the diode mode.
04:07This is also fine.
04:10This is also fine.
04:12Now, let's see what is the shortage in it.
04:14In fact, it is visible in it.
04:15Let's show it by moving it closer.
04:16See this.
04:17See this.
04:18See this.
04:19Is this thing coming?
04:20This high side is burnt.
04:22See this.
04:23See this carefully.
04:24See this.
04:25See this high side from here.
04:26See this.
04:27See this.
04:28See this.
04:29I don't know what all they have done.
04:31Although, if the kit comes directly, there may be chances of repair.
04:35But, when the kit comes like this, it is a big problem.
04:38See this.
04:39So, it is expected that it will be 100% short from here.
04:44Let's put it on the diode mode.
04:45See this.
04:46See this.
04:47It is short.
04:48Because, it comes like this.
04:50Okay.
04:52This is the sign of short.
04:53It will be fine.
04:54It will be short here.
04:55Now, what I will do is, I will disconnect it from here.
04:59See this.
05:00I will give it a cut from here.
05:01I have disconnected it.
05:02I don't know what all has happened to it before.
05:04I have disconnected it.
05:06Now, we will give it a voltage.
05:08Now, let's see which problem it has.
05:11Shortage.
05:12Whether it has been removed or not.
05:13Or, whether it is short or not.
05:15Okay.
05:17I have put a rector here.
05:18It should not be run without a rector.
05:21This is N.
05:22I have put this.
05:24N and L are not for the purpose that it is AC.
05:26But, still you have to put it correctly.
05:28Because, I have given a mark here.
05:29A mark is given here.
05:30So, you keep a serious eye on this.
05:33And, the kit will tell us about it.
05:34See this.
05:35See this.
05:36Now, the problem with this was that the shortage in this was its IPM short.
05:41We have disconnected it.
05:42Positive.
05:43And, see this.
05:44Now, it is telling us correctly.
05:46This was the problem in this.
05:48Now, we will remove it.
05:50Now, our stage has come.
05:52After this, the checking of IEBT.
05:55Which they have sent along.
05:56This one.
05:57I will remove this and see.
05:59What is the problem in this?
06:02See this.
06:03Actually, the burning of IEBT is bad.
06:07This tells us everything.
06:09What is going to happen now?
06:10What has happened?
06:11Or, what will happen?
06:12Okay.
06:13This.
06:14I have read the complete video to check IEBT.
06:17You can see that.
06:19See this.
06:20It is attached like this.
06:22This point.
06:24This emitter.
06:26Collector.
06:27Gate.
06:28I have started checking this now.
06:30Here, I will check on the motherboard.
06:31See this.
06:32I have put it here.
06:34This short.
06:35This.
06:36And, this.
06:37This is a dangerous thing.
06:39If it would have been dead in this.
06:41If this pin was not there.
06:42If this gate was not short.
06:43Then, this was more clear.
06:45Now, if this is short.
06:46Whoever has this short.
06:47That is a little dangerous thing.
06:50If this is short.
06:51Then, once the kit can be turned on.
06:53It can run.
06:54It can be repaired.
06:55If someone puts IEBT again in this.
06:57If they do it again and again.
06:58Then, the kit gets damaged.
06:59I will show you that.
07:01Because, actually this happened to this kit.
07:03That, its PFC circuit.
07:05PFC system.
07:07That got damaged.
07:09Because of that damage.
07:10There was a continuous voltage on the gate.
07:12When there was a continuous voltage on the gate.
07:14Then, the gate pulse kept coming.
07:15Gate on.
07:16And, when it happened.
07:17Then, its collector emitter got short.
07:19Continuous short.
07:20It did not get off.
07:21It got on.
07:22It did not get off on PFC.
07:23When it happened.
07:24Then, because of this.
07:25This problem has come in this.
07:27Now, in this.
07:28You have to see.
07:29The main thing to see.
07:30There are few things in this.
07:31Which, I will tell you now.
07:33In this, we will see the voltage.
07:35Its, this.
07:37OPAMP circuit IC is installed.
07:38This one.
07:39You can see this.
07:40This is OPAMP circuit IC.
07:42We will check its voltage now.
07:43We will put it.
07:45Its voltage.
07:46As soon as we check the voltage.
07:47Then, we will know everything.
07:49And, after this.
07:50The remaining thing.
07:51I will tell you now.
07:52What is there in this kit?
07:54See.
07:55The problem is.
07:56The work is.
07:57You should know this.
07:59What does this thing do?
08:01If this burns.
08:02Then, what is it?
08:03If there is a fault in this.
08:04Then, what can be the problem?
08:06We make videos without the kit.
08:08It is on video.
08:09It does not happen.
08:10That we turn it off.
08:11And make camera video.
08:12This problem does not happen.
08:14We give so much time to the kit.
08:16More than this.
08:17We do not give time.
08:18To repair the kit.
08:19To testing.
08:20See this.
08:21Here.
08:22I have given the voltage.
08:23Now, you have to show two things.
08:25That, I have to show my legs.
08:26See.
08:27I am checking on this.
08:28And, I have to show the voltage here.
08:29Where on the meter.
08:30I am seeing the voltage.
08:31So, we will know.
08:33What is there in this kit?
08:35Here.
08:36I should get 15 voltage.
08:39I got this.
08:40Okay.
08:4115 voltage.
08:42Now.
08:43This is the next pin.
08:44See this.
08:45On this.
08:46Two lines.
08:47Approximately.
08:48See this.
08:49It is more on this.
08:50On this pin.
08:51Also.
08:52See the voltage.
08:53It is more.
08:54On this also.
08:55See this.
08:56See this.
08:57On this.
08:58Voltage is also more.
08:59And.
09:00After this.
09:01Here.
09:02Zero.
09:03Zero point.
09:04One.
09:05Four.
09:06Voltage.
09:07It should be.
09:08It is also more voltage.
09:09And.
09:10Here also.
09:11Voltage.
09:12Now.
09:13See this.
09:14Voltage.
09:15Four.
09:16Voltage.
09:17It is also more.
09:18This is ground.
09:19Zero.
09:20Zero.
09:21It will be.
09:22Voltage is more on this IC.
09:23Now.
09:24See this.
09:25See this.
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