Vintech Computers Repair Services In Hyderabad
"this power supply unit okay this is your" laptop service in hyderabad "power
supply for your average computer" "with PC this one you switch on
the" computer "nothing happens dead so let's take it"
"apart and have a quick look at it on the" "bottom you'll find
full screws to remove" "the top cover so when we work in on"
"power supply units always make sure it's" "disconnected because
you don't want to" "have any accidents touching the mains"
"okay so generally working inside the" "these power supplies
there is there's" laptop repair in Hyderabad "always an a fuse and inline fuse if"
"there is nothing else" "obviously burnt and it's just it's
just" "pop the fuse through a surge then you" "can replace
the fuse never Bridget" "always replace it with another fuse
and" "see how it goes if you see something is" toshiba laptop repair center "burnt and
it's smelling don't even" "bother replacing the fuse the machine
is" "worth the power supply is burnt and just" "junk it
what I always do if the fuse is" computer repair services "okay and nothing is burnt"
"nothing is smelling we come to this we" "come to these
capacitors here and every" "power supply you'll have some some"
"capacitors okay so what we're looking" "for today are some
capacitors which have" "been swollen they don't at the top"
"you'll actually see they're puffed up so" pc repair "here's an example of
a bad capacitor" "okay it's swollen at the top and it's"
"leaking okay and if you put it down on a" "flat surface you see
it cannot it won't" "even stand up okay I have a capacitance" "meter
here which we can which I used to" "test the capacitors so this one
says" "that it should be two thousand two" Pc repair services "hundred
microfarads" "the negative is always inside that has" "the
stripe the band and you can test it" "and this one is about 800 so
that's an" "example of a bad cap so what we do is" "remove
any swollen caps from the board" " laptop screen repair in hyderabad test them to make sure that they
are bad" "replace them with the same value" "capacitors but
of a higher voltage for" "example the 16 volts if you put in 20
or" "25 volts as long as the microphones are" "the same and
maybe we can make a repair" "on this power supply unit for a
couple" "of dollars okay so let's get the board" out
"identify the bad capacitors and replace" them you "one two caps
at all" laptop repair Hyderabad "swollen and are leaking and a third cap" "yeah
which is leaking which is swollen" "so we're going to install the
these" mac book service center in hyderabad "three caps replace them with the" "equivalents okay
so this just uh check" "out these these offending capacitors"
"right so that's the first one see it's" "all domed sleeking
right so this this" "capacitor is valued at a thousand"
"microfarads ten volts" "getting a reading of 369 set up a"
"thousand so there is a classic example" "of a bed cap okay so
on the board there" "will be a number this is C 15 it stands"
"for the best of the 15 make a note of" "that so when we take
out whole befooling" "the offending caps we make sure the" computer repair services in Hyderabad "right caps the right valued capacitors" "were back in the right
place" you "okay this one even though it's a little" "bit
darker on the top that it is giving" "me a thousand but the path is
read about" "sense it's this is domed but swollen I'm" apple service center in hyderabad "just going to go ahead and replace that" "one as well"
"okay so let's find some replacements" "caps right so I found
the three" "replacement capacitors I've tested them"
"they're giving the correct correct value" "so let's resolve
those back into the" "board and give it a test and see if"
"we've made it repay the capacitors are" "polarized on the on
the actual circuit" "board where you've taken them out you" cpu repair services in hyderabad "will see on the circle you will see one" "side it has a line or
a stripe that" "shows you on where is the negative on"
"every capacitor there is a band going" "down one side of them
that shows you the" "negative okay so that's very important"
"make sure you get them in they'll wrote" "the right way
around" you "okay so once you put your new capacitor"
"solder and make sure you've got the make" laptop service "sure you've got the
polarity the right" "way around okay so this one looks good"
"so let's give this one a test" you "okay so let's give it some mains
Magadan" "right on you connected here you'll find" "only
one green wire" "okay so if we bridge the green wire with"
"the black the black towards the inside" "of the connector that
is the same as" hp laptop service center in Hyderabad "power on from the PC so when you do that"
"your fan should plot to turn right as" "you can see this fan is
turning" "will will mount this inside a PC give it" "a test
run but it looks like replacing" "those capacitors as a as ended up
being" "a fix we do not need to replace this" "power supply
so thanks for watching" "remember there's always a fix" "hi did you know most computer chops
they" "replace the power supply and they" "trashed our one
the reason is because" "they don't know how to fix it let's" hp laptop service center Hyderabad "learn how to fix a switching power" "supply this power supply
is good there" "is nothing wrong about it we just use it"
"to learn how to fix switching power" "supplies the good news
about this is" "must be clean but in real life we will"
"get very dirty power supplies do you" "have no idea how it
looks like if you" lenovo laptop service center in Hyderabad "are a beginner if you already have"
"experience you know what I'm talking" about "but if you're
removing the cover let's" "pay attention to the following
pictures" you okay "this one doesn't look like the pictures"
"whistle do you see this those wires okay" "they should not
cross between the Debray" "da door because we are respecting
the" "radiator to get hot" "we don't want to melt the plastic
covers" "from the wires and make a chore circuit" "with it
so this is the first thing we" lenovo laptop repair center "have to correct and he came like
that" "from the factory so when we assemble" "this toy oh
it's very tight we have to" "put them in the way that they
don't" "touch any metal we are living the taking" "apart
area now very important you see" "those big guys there okay they are
the" "mine capacitors and what we are going to" sony laptop service center in Hyderabad "do is to
take a pure grease and a" "resistor and we'll go to those"
"capacitors and we will try to discharge" "them like that"
"then somewhere that's in case of the" "power supply was
connected once the main" "capacitors out discharged now we can
go" "to the next step for cleaning as I said" "in one of
the videos which one is better" dell laptop service center in Hyderabad "if the vacuum machine or the
compressor" "I ready to use the compressor and not" "one of
them is good enough if you don't" "use these tool you must take it
apart" "and watch it too in the same time and" "you will
get a very clean equipment and" "not something that you think is
clean" "outside but it's still very dirty inside" mac book service center "now
let's go today semi dirty area here" "is the reward area what we are
going to" "do here is to look for any kind of" "problem in
the printed circuit board it" "could be shorter" "it could
be heating element just visual" "inspection for that I have all this
kind" "of equipment when I said visual" "inspection I want
to talk about this I" "am very proud of my eyes I have very"
"cute eyes but I cannot trust what I do" acer laptop service center in Hyderabad "if we are going to
make a visual" "inspection we get good equipment for it"
"is not what is seen very easy is what is" "hard to see what we
want to find and" "please don't forget to use your safety"
"glasses I have two colleagues that I saw" "in my career they
lose one eye just by a" "stupid mistake that could be solve it"
"with one dollar safety glasses now let's" laptop accessories in Hyderabad "go to the British a
group" "as I said first step is to look for any" "kind of
problem with its aura let's pay" "attention to the following
picture" "that's what we are looking for broken" "place
where the solder is not making a" "good contact with the device now
to" "understand a little bit of this I think" "if you can
see there are two kind of" "island and some people live here and
the" "other people they live in the Loire" "neighborhood
what happened here is one" "is a primary stage and the other is
a" "secondary stage and supposedly they" dell laptop repair center "should be
insulated the way that they" "communicate is by one optical
device" "here that is the one who will give" "reference of
the voltage signs in the" "other side from the output will be"
"interpretated to control the pwm shape" hardware repair services "if you want to fix a
switching power" "supply the first advice is get"
"information about the PWM chip what I" "mean get information I
mean get the" "datasheet write down the value for each"
"transistor diode any semiconductor" "device you find the way
make a list" "goggle eyes them in Internet get the"
"datasheet and then you know what do you" acer laptop repair center "have and what are you
dealing with" "sometimes you have two diodes and"
"sometimes you have a transistor and when" "if you are going to
make a measurement" dell laptop repair "with the tester you don't know what are"
"you doing unless you have the datasheet" "so getting get a list
of them get attach" "it and now you are ready to work fast" "and
quickly if you get a peak of voltage" "we are going to get trolls in
this area" "here you have a thermal resistor in" "serial it
will increase its resistance" "as you consume more current we
have" "defused the bridge rectifier could be" "one element
or" dell laptop repair services "could be for diodes like this one" "sometimes you have
some devices to make" "a short circuit in case of a voltage"
"peak there too - what against the other" "and with a very low
reverse peak voltage" "so they will be coming short circuit and"
"they will let the current to pass it" "will make a short circuit
blowing the" hp laptop repair "fuse and the rest of the circle will be"
"invisible for the voltage peak so the" "main problem with
voltage peak will" "affect this area don't forget you must"
"remove these capacitors and make a" "measurement of them to
ensure they're" "okay the other kind of problem we get"
"with them when the power supply is an" "efficient and the
computer turns off is" "because those capacitors they start"
"getting bad by the way I thought I had a" samsung laptop repair in hyderabad "good power supply
this is totally flat" "but these guys they are getting inflamed"
"so in inside we have to fix this power" "supply I didn't expect
it and as you see" "now I have something to give service to" sony laptop repair center "this other guy - is getting inflated" "when they get inflate
ready to explode" "they are not good they're an efficient"
"they they will give a last curve in the" "back and let's pay
attention to the" "following video about this kind of"
"capacitors when we have capacitors in a" hp laptop repair service "printed circuit board
in a switching" "power supplies like this once a"
"switching power supply if you see the" "surface of these
capacitors they look" asus service center in hyderabad "good healthy but when you see something"
"like this or this older guy did you see" "that a skin let's
call the color scheme" "is peeling out is because the capacitor"
"was overheating and the plastic starts" moving "away if the top
of the capacitor is" "inflamed ready to pop out to explode in" Dell service center "another world or they skim over the way" "just by that save
your time with a" "reading and you know you have a bad"
"capacitor another example take a look to" "these guys do you
see this suspicious" "guy and this order - okay" "they're
capacitors who has been" "suffering because the temperature
back" "to it so when we get a voltage peak will" "affect
this area if we get a power" "supply that shuts down the computer
a" laptop screen repair "nice and efficient we are talking about" "to replace
capacitors in this area" "always replace them don't think twice"
"about they are not too expensive and you" "will give a good
service with it when" "you get a big explosion with a smoke"
"your sink with it doesn't work and all" "the big deal with it
is because you have" "to power transistors and they get" amc managed service in hyderabad "damaged they can get into your secret" "they can get open and
with them a bunch" "of other components there go another way"
"there are two small ohms resistors" "having too low ohms
resistors they must" "be replace it" "they're very low
almost in the lower" "scale in the multimeter you can no get"
"precision if they are good enough or not" "so replace them we
find them in the this" "a power supply later with those two"
"small resistors they're linked at most" sony laptop repair in hyderabad "of the time to diodes
and they go to two" "small transistors they can go directly"
"or they can go buy a small transformer" "like those ones those
transistors could" "be either one this or these or these"
"this other guy" "and they are you will recognize them"
"because they are connected directly to" "the pwm chip so now
you know what to" "replace in case of another thing that I" toshiba laptop repair in hyderabad "always change is this optical device is" "the completion as I
told you" "some people they live in this part of" "the
neighborhood and the other people" "they live in the other part and
this is" "the guy who transmitted the message from" asus repair in hyderabad "one to
the other this optical device is" "always linked it to voltage
reference in" "one of the sides the voltage reference" os installation services in hyderabad "could be done by a sinner diode with a" "transistor or most of
the cases say" "nowadays they use a chip it has some" "kind
of letters with the numbers 431 or" "something alike and you will
know is a" "voltage reference chip I replaced him to" "the
recharging big TVs like plasma LCD I" "used to just change this these
two guys" "and the TV come up to come to life again" "and I
get one in my pocket you will need" "two multimeters one to trigger
the light" Hardware And Networking service in Hyderabad "here and the other to make a mess remove" "the
conduction in the other side of the" "sensor and you will know if it
is good" "or not if it is not replace it and it's" "good to
replace this if one of them is" "battered by sure the other one could
be" "gone too" os installation services "one more thing you need to know is we"
"are looking for any kind of heating" "marks I mean the printed
circuit board" "will change the color and also the" "device
I can show that it was" "overheating most power supplies there" dell laptop repair in hyderabad "like if you know one of them you know" "all of them there are
humans they have" "two legs two hands two twice only one" knows
"it doesn't matter the design at the end" "they are almost the
same thing here make" "this hard for the camera to show there"
"is a color changing in the printed" "circuit board could be
this diode could" "be this resistor I have a picture that I"
"want to show you again our power supply" acer laptop repair in hyderabad "as I said if you know
one of them you" "will know all of them probably here we"
"have to change the resistor and lift up" "the resistor so it
will no be so close" "to the printed circuit board let's pay"
"attention to the following picture" mac book repair in hyderabad "just to remember we have
the entrance" "with the AC voltage coming here through" "a
thermal resistor that will increase" "the resistance if we increase
the" "consume in current in the power supply" "we have the fuels we have the bridge" "rectifier mated by four
diodes or one" "only device we have the to mind"
"capacitors that we have to remove and" lenovo laptop repair in hyderabad "make a measurement of
them do you" "remember I told you when we have the"
"biggest of the small display ssin and" "they charge they put
and everything for" "this power supply those big transistors"
"they're located here i already identify" "them and also i told
you about some" "small resistors that you have to change"
"with them okay they are right here one" "is here the older
product you cannot see" HP laptop repair in hyderabad "it because he is under that radiator"
"there are very small resistors 2.2 ohms" "and they're connected
to the base of" "those transistors the completion could"
"be through a transformer or directly to" "the two small
transistors I told you you" mac book service in hyderabad "have to change to one is right here
the" "other is next to it and they are" "connected to the
pwm chip also I told" "you this is the primary stage this is"
"the secondary stage and we have some" "coils for the completion
in the output" "and we have some capacitors than most of"
"the time we have to change what as soon" "as they get all or
use and we have to" "service the power supply like today that"
"I said I'm just removed a working from" "the computer to make
the video I was" virus removal services in hyderabad "expecting it was good but I" "I realized
I'm all service to so most of" "the cases you must change it" "remember
in electronics everything can" "go wrong any transistor resist or
diode" "capacitor whatever even from a cable" "wire the
insulation the plastic support" "the metal shield everything could be
the" compaq laptop repair in hyderabad "damage but statistics and logic and" "quality control
says things they will" "break by the whicker's point so if you"
"know what is the whicker's pointing any" "power supply you will
be able to fix it" "this end computer chop we replace about"
"40 power supplies per year in the next" apple repair in hyderabad "10 years they can
thrash 400 of them and" "there's a lot of money if some of them"
"they are 50 dollars thanks by watching" it
- Vintech Computers
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