copy sony home theatre on off on off problem, होम थिएटर बंद चालू बंद चालू की समस्या को ठीक करना सीखे
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00:00Hello friends, welcome to skelectron's work.
00:03How are you? I hope you are doing great.
00:05So friends, here I have a copy of Sonic Amplifier to repair.
00:08In this, the problem is that it stops as soon as I increase the volume.
00:11And it keeps on going on and on.
00:14If you play it in a low volume, then there is no problem.
00:16If you try to increase the volume, then it keeps on going on and on.
00:20Or sometimes it keeps on going on and on by itself.
00:23There is no humming and all.
00:24See, the voltage is all okay here.
00:27The voltage is 235.
00:29I have put it directly in the main.
00:32There is no such thing in the series.
00:34So now I am going to check and show you.
00:36Here I have connected a speaker.
00:38Right now it is 1.
00:39If we run 4 in this, then what will happen on 4.
00:41Now I will show you on 1.
00:43So friends, see here Bluetooth is going to be connected.
00:46It's done.
00:47So now I will show you by increasing the volume gradually.
00:50See, I am increasing it slightly.
00:52See, I am increasing it slightly.
00:54As soon as we turn it off a little before its full volume.
00:58Now see here, I will show you.
01:01A little.
01:02Increasing slowly.
01:03See, it is shutting down here.
01:05It is shut down here.
01:06Then it will start again.
01:07If I turn down the volume, then it will start properly.
01:10If the volume is full, then it will open and start.
01:14So before saying BT, before saying Bluetooth, it will shut down.
01:18Because the supply is not able to take the load.
01:20The reason for this is that the supply is weak.
01:23Either the transformer is broken.
01:25Or your big capacitors are weak.
01:27Or you have a problem with soldering.
01:29Or whatever it is, you will see what to check.
01:32Such conditions come in front of you.
01:34So friends, I hope you should watch the video till the end.
01:37If you don't understand well.
01:39Friends, if you are new to our channel, then you can subscribe.
01:41If you have done it, then it is a very good thing.
01:43Because you will get to learn something good related to electronics every day.
01:46So friends, see here, if I increase the base a little.
01:49I have reduced the base.
01:51As soon as I try to increase the volume.
01:53I try to increase a little.
01:56As you can see.
01:57The light below is not turning off.
01:59I felt the effect of the light.
02:02As soon as the sound increases.
02:04Along with the sound, the light also fluctuates.
02:08Means it is increasing.
02:10So let's see what happens when we open it.
02:12Fill the light.
02:16Let's open all the pages.
02:18Let's do a little fast forward.
02:26So guys, we have opened all the pages here.
02:29Let's open the open board.
02:31First of all, what to do in such conditions.
02:33Understand a little.
02:35If you have a little problem.
02:38If the soldering is loose.
02:40If the soldering is loose.
02:42I want to tell you one thing.
02:44Along with the sound, there is a very bad humming.
02:46This kind of noise comes.
02:48There is a kind of humming.
02:50There is a very fat humming.
02:52If there is a capacitor losing.
02:54This is not a simple thing.
02:55No wire of the transformer can be removed.
02:57In such conditions.
02:58If the wire of the transformer is loose from somewhere.
03:01Means there is cutting.
03:03So there is no cutting in it.
03:05So it doesn't mean anything.
03:07See guys, let's clean it a little.
03:09First let's track it here.
03:12Let's find the fault.
03:14What is the problem in this?
03:16Now see, I cleaned it a little.
03:18And turn on the system.
03:20After turning on the system.
03:22A little glue will fall here.
03:24The glue.
03:26The glue stick.
03:28A little glue has fallen on the capacitor.
03:30Let's clean it a little earlier.
03:32Because then we will measure its voltage.
03:35Then we will see how much voltage.
03:37How much voltage is on one capacitor.
03:39Like guys.
03:40I have told you in the first video.
03:42There are two main capacitors in it.
03:4425 to 35 volts.
03:46How much extra can you keep?
03:48I turned on the first set.
03:49And we get the same voltage on it.
03:51One and a half volts can go up and down.
03:53Because of the local transformer.
03:55But if the voltage is going up and down.
03:57Then it is the fault of the IC or diode.
03:59Okay.
04:01So guys, we set the meter at 20 volts DC range.
04:04And we set it on one capacitor first.
04:06Then on the second capacitor.
04:08At that time.
04:10Turn on the power.
04:12Turn on the power.
04:14See.
04:15So the voltage is around 14.666.
04:17Okay.
04:18Now let's go to the second.
04:20Let's see how much is it.
04:22Let's hold it.
04:24So see 15.666.
04:26That is one voltage up and down.
04:28Why is that?
04:29Because of the local transformer.
04:30In the local transformer, this is the case.
04:32In the company transformer, this does not happen.
04:34In general, I just play a song.
04:36So I played the song.
04:38Now we have to see.
04:39How much voltage is left on both the capacitors.
04:41When our full base is coming.
04:43Means there is a punch on it.
04:44Means the base is coming.
04:45We will keep the volume low until it is closed.
04:48Less than where it is closed.
04:50It should not be closed.
04:51See in that condition.
04:52How much voltage is dropping.
04:53If it is going below 9 or below 10.
04:55Then there is a problem.
04:57So guys see.
04:58Now here I am holding the wire completely.
05:00On this.
05:01See up to 8 points.
05:03It is going up to 8 volts.
05:05Like our base comes.
05:06Now let's look at the second capacitor.
05:08Look at this too guys.
05:10It is going up to 8.
05:11I have kept it completely stopped.
05:14It is going up to 8.
05:169.5
05:17Up to 8.
05:18But it is a little better on this.
05:19On this one.
05:20Too much.
05:21Too much.
05:22See.
05:237 is also going on this one.
05:24So what is in this condition guys.
05:26Our big capacitors are installed.
05:28See as soon as the base comes.
05:30Its voltage goes down a lot.
05:32And now the sound is very low.
05:34When you increase more.
05:35It will be even less.
05:36What is in this condition.
05:37One is transformer guys.
05:38We have installed a capacitor of less than 1 amp.
05:39That is no problem.
05:40Let it be.
05:41What we have to do.
05:42In this capacitor.
05:43Two.
05:4425 volts.
05:45They have to change new.
05:46Which new value to put.
05:47Which is not a problem.
05:48I will tell you now.
05:49First I want to show.
05:50Which capacitor.
05:51See guys.
05:52This one.
05:53These are our main power supply capacitors.
05:54Which is 12 0 12.
05:55By putting a rectifier.
05:56By converting 12 0 12.
05:57There is a plus voltage on one.
05:58There is a minus voltage on this.
05:59There is a ground.
06:00Where its minus and plus are connected.
06:01So understand it simply.
06:02The big capacitors in this.
06:03I am feeling a little weak.
06:04By the way.
06:05They swell.
06:06In most of the conditions.
06:07But when a lot of time passes.
06:08It swells a lot.
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