About the motherboards .... (part 2)

good morning hopefully it's working okay saturday finally saturday okay let's continue the the things about the motherboards we've done some practice yeah but now is the time for theory i know the theory everyone is running out when it's about authority let's open a laptop schematics here let's have a look let me be sure it's on screen okay so here we have a laptop schematic okay good you know i have way to fix fixing motherboards with schematics because the schematics is not enough you need more view also and the boardview is more hard to get the things you know what do we have here we have like a basic schematic of a motherboard yeah you have the memory you have the cpu the chipset we have few things here but just a general things let's go further and check clock generator because you need a clock on the motherboard yeah cpu ddr3 socket switch button you see the holder the start button the power button lcd connector leds the vga connector does the chipset good morning okay i'll dry connector bluetooth you know i'm looking for the power supplies because most of the time that's the problem thermal fan connector audio audio amplifier connectors bias you see the buyers they spoke about the bias clock data and on the pin number eight you have the plus the vcc we spoke about that yes yes we'll learn something today yeah thank you okay let's go on the power supplies because most of the problems comes with one of the power supplies dust are the mosfets okay that's a power supply yeah then you make this bigger okay so what do we have here we have the mosfets here and if you check the mosfet so you can see you have four pins here which is drain here that are all together source you have three pins and you have gate one pin that's why the mosfets they have four or eight pins four pins each side and you have two two mosfets area also you have the coil we spoke about the coil on the last video yeah the coil is here that ceramic capacitors are here vc battery out okay and the electrolytic capacitor after the power supply on the output this power supply it's a 5 volts one also these chips are controller by by this big chip and he can handle two power supplies here we have the second one yeah same two mosfets the coil the ceramic capacitors here yeah and the output capacitor that's what we spoke if you didn't see the last video just check the last video with the motherboard this is the part to find the power supply on the motherboard here two mosfets the coil the ceramic capacitors and the big output capacitor what i want to speak about this you have a lot of wires here yeah this from the middle you see this they have three pins here together and here four pins together and it's going inside the obviously from here is the coil and the output but also you're going on the chip this is the phase detector here and this from here you see this this is on the output here you have two capacitors on the ground and you have these things yeah it's a resistor who comes back to the chip this is the feedback obviously this chip should know what happened on the output what voltage is there to keep the voltage stable so that's the feedback that's very important let's go on different one so this is like a power supply with two two power supplies this is two power supplies so actually c2 power supplies but it's only one chip one controller driver yeah that's not hard let's go on the other one this is different one same thing exactly what i told you have two mosfets you have the coil the feedback and this chip tps yeah this chip is controlling the power supplies easy what we have here this is different voltage pdr vref okay another power supply this is a acer aspire 3935 that's how you read the schematics if you want to work with schematics but exactly what is on this schematic it's on the motherboard and it's on all the motherboards so it's like a path so we have two mosfets is the same and this is a icl chip iso sorry you have the ceramic capacitors here yeah the mosfets the coil and the feedback this power supply 6.5 amps vgfx probably graphics can be this is another power supply thing this is the battery one dc battery out and you have a current sensor here yeah possible so you see this is the same a power supply here but here we have a resistor a small resistor there it's called current sensor it's a small resistor and you see you have two signals who comes from the resistor on this chip actually this chip is reading the voltage on this resistor and this way he can read the the the current output obviously if this is the battery plus usually the battery is charged with 10 percent from the battery capacity so let's say if we have 10 amps battery so the battery will be charged with one um max if you put more power on the battery the battery will get hot and the life will be shorter let's see what we have here this looks like a input and here we have ad plus probably is the charging port that's my first mosfet here we have another current resistor vc battery out where is the second mosfet well it's only one let's check okay this is the battery connector and we have plus and what do we have here more we have the data we have the clock main battery connector we'll spoke about we will speak about the the batteries buttons and that's all okay so basically we we see how our power supply is looking on the on the schematics it's nothing hard here to be understood so you have the the mosfets two mosfets coil ceramic capacitors and the output capacitor which is not ceramic it's electrolytic here the problem is most of the problems comes on the on the on the on the parts where they they are getting hot or they are working with high amperage like the power supplies you can have short mosfet or you can have short capacitor i found a lot you know short capacitors sure mosfets so you can have this problem it's no point going and speaking about some random resistor because he will not get back the cheap yes i found the chip you know the the mosfet controller to be burned yes i found it but if you go on the motherboard you see the power supply here and the power supply let's say is has no output the 3.3 let's see the because the 3.3 it's always on the voltage it's always on so it will be something to die probably the 3.3 volts power supply will die first so if you have no output on the 3.3 power supply you check on the chip if you have voltage you should have 19 volts because you see this is dc battery out goes on the battery connection with the charging connection together if you have voltage on the chip you can check each chip you don't need schematics you check on each pin and see if you can find 19 volts if you have 19 volts but no output yeah probably the chip is dead if you don't have 90 but you have 19 you know it's 19. it's on the main thing you should have 19 on all the power supplies even if the laptop is off so this is a 5 volts power supply here you can see here five was probably usb probably the hard drive and on the other side we have 3.3 look that's 3.3 power supply that's 3.31 okay good now let's draw the laptop schematics so we spoke about the last video about the hardware paint paint okay let me be sure it's on screen it is on screen good size okay so let's see we have the dc jack yeah so now i'll draw the laptop schematics how i see the schematics so here we have we have the dc jack here we have the middle pin and we have the wrong connection connector this is ground i'll not draw the ground because ground is everywhere and this is plus it is plus it is 19 volts yeah plus that's plus the first will be a probably you have some resistors from fuses but it's not important i'll not even draw that things you have a mosfet yeah let's say you have a mosfet that's my mosfet and we have four pins all these four pins are together here yeah four pins on the output you have three pins three pins is the output and one is the gate this is the gate let's be later on about that gate these are all together yeah the next one is another mosfet you must see these things here like a switch and my mouse is not working it is working you shall see this like a switch let's make a switch because actually it is a switch nothing else it's a switch this again three pins and the pin number four eight and here we have four pins all together yeah warning and that's in easy on all the laptops even on the macbooks but the macbooks are different that that's the switch signal here and the gate let's say the gate is uh it's moving the switch yeah i'm sorry yeah no that's wrong okay oh come on in a different size yeah maybe okay maybe brush and that's the gate here so what do we have here we have two gates at two pins if you apply voltage on that things you can open or close the switches yeah i will i will do a battery schematic just wait here i will speak about the batteries and chargers these pins go probably on some power management chip but that's not very important what this power management chip is doing um few things but keep in mind is something very important this management chip also check the the input voltage and i will explain after why okay i will speak about that after that after these two two mosfets i have a resistor and also i have two connection from here here and i have one more connection from here going here this is it's it's it's the value of this this resistor is it's low it's like let's say 0.5 ohms or 0.1 ohms zero point something ohms yeah and this is my vcc that from here is going absolutely everywhere so let's say and also i have one more mosfet one second one more mosfet here three pins all together and the gate which is also is going here and here i have the four pins all together and that's going to the battery yeah battery good there's no point speaking about the ground ground is everywhere so from here yeah from this big point let's jump over this thing from here that's my vcc yeah how this thing is working you know before going further you know before going on the on the on the power supplies because most of the problems are here you know are here on this rail on the power rail and the 19 volts i have 19 volts this is my first switch this is the second switch what these are doing these are like emergency switches if you keep press the the [Music] if you press the power button 10 seconds these switches will get opened and will cut the power so this is not this is like a wires when everything is fine this is like a like a wire it's no there's no voltage reduction or something like that or nothing it's like a wire this this switches yeah so if you keep the power button pressed if you have um this also has a connection with the thermal of the laptop so if you have overheating this switch will switch the laptop off if you have a short on 5 volts on the usb ports this switch will switch the uh will cut the power off yeah we'll cut the power down uh if you have over voltage here or under voltage so if you go let's say i think the laptops are working like up to 24 volts if you go higher probably this chip which is reading the input yeah will cut the power down if you go under like 17 volts i think this ship yes will cut the power down on the other hand obviously if you have a short on the motherboard yeah anywhere you have a short here you have a sure because here you have all the power supplies you have a short doesn't matter what you have assured this current resistor will tell to this ship it's a short and this ship will cut the power down you know obviously if you have here a short the voltage on this resistor will be high and the chip will read this what i've done in few videos yeah i just jump over the mosfet you can jump over the mosfet let's solder a wire from here here even from here here and you have like a straight wire here it's not a good idea but it's good to identify the fault because you don't know if maybe this ship is faulty maybe everything in the laptop is fine but this ship is faulty and maybe one more that is fault you never know but anyway if you try let's say the easy way the easy way up to avoid to avoid playing with this making short here or replacing the mosfet let's say come with with the 19 volts for the from here coming straight here or here will not work because this chip is reading the input i tried before i said you know let's come with 90 volts here we're here where are all the power supplies you know just jump over all these things and comes with the power supply here on this point here i say let's put 19 volts here and let's see if the liquid is working it's not that's the thing it's not because this ship is reading the the 19 volts here and also this ship will give a signal to that startup chip so if you put a voltage here will not work so don't try it i tried already it's not working okay so from here what do we have we have all the power supplies so that's clear yeah when you have the power the power flow is like that uh that's the power flow yeah does the power flow come here and also here is going and is charging my battery and this ship also is controlling the charging current on the battery i'll tell you what what what you don't have to do this is when the charger is plugged in yeah you see these arrows here when the charger is plugged in and also charging the battery when you unplug the charger yeah you'll have this voltage from the battery coming here that's the way how the battery and charging is working when it's plugged it charging the battery or not is when not it's the voltage from the batteries come back on this point and the battery let's say you have four cell for cell battery for cell does mean 3.6 is the lowest times for 14.4 now probably you don't have three elements one second so you have three point six our lithium elements for free 10.8 tape one 10.8.8 that's me fully charged is 4.2 times 3 equals 12.6 so your battery will be 10.8 discharge like zero yeah zero volts zero sorry zero percent zero percent 10.8 volts and fully charged is 12.6 12 1 6 and now you'll ask me oh sorry i'll show you where is the power button connected here now you'll ask me if the laptop is working from 10.8 to 12.6 yeah why on the input on like 17 volts this this will cut down the power it's working so your laptop is working even with 10.8 volts so the power supplies they will work even with lower voltage but actually this chip will cut the power down probably around 17 volts because if if cannot charge the battery yeah he will cut the power down good so that's the power on and charging yeah that's clear the power supplies this paper is too small we have first the 3.3 that's always no all the power supplies are under the voltage but the 3.3 is always one like we spoke you spoke yesterday in the video with the motherboards when we have graphene recipient one chip and no video output you know you know i don't want to use bad words but on that moment you have a big problem if if let's say if you are lucky to be the ram the ram memory you can be lucky to be run member if not you have a big problem can be the processor you know it happened you have the the processor and the graphics on the same chip if you play with the screen connector yeah you can burn the the graphics from the processor and you see the laptop is coming on but it's displaying nothing that can happen you can click and try a different processor but okay so we have the the good let's say we have the power supply 3.3 yeah that's the power supply we'll speak after about the power supply 3.3 volts yeah that's always on this watch play is always on and we have the other power supplies we have many parts to play actually we have the start touchy let's let's say that's my startup chip yeah this can be [Music] smc sorry or wind bond ring bonds and a few more the worst from this one is the smc one this ship is getting short if you have a smc chip yeah it can be unsure i found many for sure this chip actually it's always on 3.3 volts yeah that's our controller that cannot be faulty yeah maybe it's erased maybe it's a error on the program but i didn't find like a biochi foldy but yeah yeah it can be can be corrupt you know the program from the buyers and also we have the bioship yeah virus okay which is also at 3.3 volts here okay what this ship is doing one is manage the is reading the power button and the power button is connected to this chip here let's say this is the power button here we have a resistor a small one also yeah here we have a resistor and all the laptops are the same yeah to 3.3 so this resistor is keeping me this this this is keeping this pin always on 3.3 volts the condition to this chip start is this pin to be to ground to uh yeah to move the 3.3 to ground so here you have the power button and the power button it's exactly on this way yeah you have the power button like that that's a switch yeah that's my switch that's the power button and this is the ground that's always useful in the videos i make sure with your two pins to start up the laptop to start the laptop yeah so if you push the the power button you start the laptop that's exactly how the power button is connected to the motherboard so you can you can make short it's not a problem even if you make sure you don't have the you most of the time you have a ribbon cable from here from here to the power button you have a variable you can make sure from here from this pin if you check with the multimeter you'll have 3.3 volts because you have this voltage yeah and also the pin is not going straight in the chip so you cannot damage nothing you can shorten the ground you can short up into ground to start up the laptop here that's the power button power button that's the way how this chip is working also this chip is doing more things after you press the power button here uh you press the power button the computer is a dumb thing it doesn't know what to do you'll read the bias which is a basic program yeah he will test this chip he will carry some tests a few testers yeah fuse test and he'll start the we'll start the laptop actually this this chip will start all the power supply will power up all the power supply and we have from here let's say that's my 5 volts one yeah i lost power supply here we have five volts this ship will order the this power supply to start we have the we can have even a 3.3 big one 3.3 volts we have the cpu 0.9 one volt depends of the cpu yeah and these are all together connected here you see here what do we have more uh we have uh what power supplies we have can have more power supply 1.5 from 1.5 volts yeah or from here all all these power supplies that's what i told you first check if you have voltage on the power supply on that ceramic capacitor or on one side of the of the uh mosfet yeah so you always should have 19. yeah the power supplies probably are not working because the power supply start working when you press the power button and this chip will start all my power supplies yeah why this ship is doing more is bring the screen to life so this is very important because you have two two important signals here you have the vlad so i know from the experience what are the problems you'll have a problems with this vlad and power on let's say but this can have different names power on on the screen here screen screen screen okay let's make the screen here that's my screen you have the data but we don't care about the data we're not speaking about the data the data is going to the graphic chip or the processor yeah what voltage important do you have there you have 3.3 yeah where is the 3.3 let's say from this which one is ide no can be one of these chips so depends of the the brand of the laptop you can have ata i t e and e smc winbond you see so you can have only one only one from all are doing the same thing so you have the screen lcd here lcd no it's no lcd it's led lcd you need an inverter now lc we'll speak about the lcd most of the screens are led and you have the data here that's the data pin on the data size we have 3.3 let's say it's coming here jumping and it's coming on this output 3.3 volts yeah and we have 19 for the inverter for the light so that's the data 3.3 and the data yeah that's what we have to check if you don't have picture but you have light on the light side on the light side you have 19 which is coming from here same point yeah we have the these pins you see these ones which is coming from this ship that's the thing and we have one more pin i'm sorry i'm not going to enjoy from here yeah so you have to understand how these things works after this chip is making the auto test here the startup chip will power up the screen if see something from the your laptop is failing the test on the startup procedure you know when you start when you press the power button uh this they will not give the signals on this pin so on this pin i should have 3.3 if everything is fine 3.3 volts 3.3 yeah but this is uh one one is power on one is powering up the screen one is the diamond you know the screen is making less brighter or brighter yeah so on one one pin you have three point three if on the other pin you have zero you have no light if you have one volt two volts yeah you have low light so that's very important on these two pins to be signals there yeah but this is a led screen yeah so we are not speaking the big inverter from lcds but even on that one the same thing yeah you have right here same thing and i found i found this like this chip is no it's not giving me any voltage on this thing and what you can do in that case and i explain i have like a maybe yeah yeah yeah we have we have a laptop we have i think assumption here and what's the problem with these signals and what we done we show these pins i know it's dodgy but that's the only way to fix this problem we show these pins with the 3.3 volts so from here we short that pins jumping over and moving here on the 3.3 so actually you just have to solder the pins you have test points on the board on the screen board you'll have test points saying power on uh v led led on things like that led on you'll have test points and you can find very easily these pins so all the screens they have test points on this pin here on the board you'll have like a round things and it's it will be a writing there and on the writing will be this power on led led dim light on things like that depends of the screen but here you'll have test points test points are some things make here to for you to check obviously if you have zero it's not okay also when you have graphic issue when you have graphic issue obviously the board will fail the test and the screen will have no light so when you have no light you probably have a graphic problem or you have no memory will fail the test doesn't matter if the thing will fail the test the screen will not come you will have no light that's a sign if you have light doesn't mean the board passed the test if the board passed the test probably you have a ribbon cable issue or you have a screen issue but not the board so that's the first thing when you check alepto see if has light or not that's very important because based on these things if the the screen has light or not you can you can you can put a diagnostic of course if the screen has light probably i would say like a hundred percent it's a screen issue and that's what i will do probably uh no no i will i will check i will see the if the screen has light but no picture or lines or things the next thing is i will check with the external screen you see you have the external vga connector hdmi you just plug and check on the external screen if you want to check okay and also this ship will this ship will read my keyboard yeah here is my keyboard and this ship will read all the keys yeah keyboard and also the touchpad keyboard touchpad but this this is a lot of things this will start the wi-fi for me what's up the bluetooth wi-fi bluetooth is doing a lot of things so this is bringing to life all the motherboard and also you will bring me the chipset the chipset chipset this chipset it's it's it's this is a smart thing you know this is doing a lot of things so all the all like usb let's say you have usb usbs are managed by this chip the sata the hard drive hard drive uh also as uh is communicating with the processor or the graphics we have the let's say the processor the processor from the processor processor it's manage the managing the memory the memory reading and writing but the switching is from this chip so they are all working together also can have the the graphics you know the integrated graphics intel yeah it can be from here or you can have a dedicated chip or you have it's inside of the processor and the data this data thing is coming from here from the chipset or from the processor can come from anywhere or from a dedicated graphic chain here bypass the graphics to be honest with you i heard that some people they are disabling they found a modification how to disable the dedicated graphic chip and switch on the integrated intel chip well i don't know so much about that so that's the basic that's the if you have like a keyboard issue touchpad issue this ship is controlling the thing yeah wireless no wireless actually is connected with this with the chipset but its power is powered up by this chip same with the bluetooth because the power on signals come from this chip this startup thing the battery here the battery you know the people with the battery they they let me open a new one you know the battery it's a it's a simple thing but they they make them so so complicated they complicate everything so you have the cells let's say you have the cells and they complicate these things only to don't be like copied you have three cells each cell is 3.6 volts what do you mean what do you mean required chips requires for what 3.6 volts 3.6 volts so all these cells they are 3.6 or 4.2 4.2 fully charged 3.6 discharged yeah yeah i see but for what that's what i ask you from what you can get all the required chips for the motherboard oh you can buy from ebay you know if you have you can you can you can get from different from different uh board if you have board for spares so all these cells yeah it's not about only this cell even the phone battery and the tablet battery all these things they have at light lighty on union they have 3.6 when are fully discharged and 4.21 are fully charged uh what they done here they use a board and the board is something like that you have two mosfets let's say you have minus you know plus no that's plus that's minus here minus is the ground okay and on the plus side you have two mosfets same and you'll have you'll find these mosfets on each on each battery four panes maybe ends and same like that you have the second one and actually this is the this is the output and from here you have a resist or a current resistor and you have the battery output this and from the ground you have the battery connector yeah these mosfets like how i said are switches this resistor it's a low it's probably zero point something ohms yeah and this is a current resistor and obviously you can create recur can read the current from this resistor and here you have a management you have a power management chip which is what he's doing and also he has a memory you know what the memory now from here you have a memory yeah this is the power manager okay the power management you have one here you'll read the output also and you have a memory memory often that main chip fails which do you call main chip so which is main chip for you okay so this power management chip here yeah what is doing is controlling the battery and is reading you know how much power how much power go through through this resistor yeah and also we'll shut down the things if you have any short on the battery connector will control the charging current you know if the charging current is it is too high will cut down the power and also from here if you open a battery you can see each after each element you have a wire [Applause] let's say based on these things here on the resistor this power management chip yeah he will see how long is taking to the battery to get discharge from fully charged to empty when that times when the times so let's say the battery is charging quickly this ship will know and this ship will report the battery life you have the the data you have clock and the data that's why you have the message consider replacing the battery or charging i don't know you have a lot of error message or replace the battery or things like that so this ship will consider by himself when the battery is gone and on some point he will cut the switches so these switches will be never uh yeah the gate sorry the gate is controlled by this chip say on some point he will uh disable the battery but you know what this is electronic here probably is nothing getting 40 on this side but it's the chips so you can replace the cells but actually you can't you cannot do it because they protect this battery you know let's say anyone want to copy the battery and replicate the battery duplicate the battery like they are doing in china so if you cut the power down if you try to replace a cell this memory will get erased yeah if it's getting erased will nothing will work on this motherboard yeah so that's why you cannot change the cells on the battery because at the moment when you cut down one wire everything will be gone morning so that's the thing with the battery and also for the data pin you have you have data and clock yeah uh the battery you know will make a report about the battery life or you know the how much uh percentage is charged and we'll send these things through to the same chip the starter chip so that's how the battery works and i tried before let's say i tried make a bridge here you see here like a bridge and bring the voltage here and yeah you can do it yeah you'll have voltage on the on the other side yeah the laptop will work but will not charge yeah they are smart so you'll make the easy to reprogram i don't know but if you find a way just let me know you know there's no point you know how much it's a battery like 10 pounds on ebay it's not even 0.2 bothering this thing so this chip i tried i tried before even yeah i open another battery yeah i soldered the wires you know the each wire i soldered the each wire and with the elements and everything and i try to take these these cells down you see our batteries which are rare and doesn't work i don't know why i think when the cells are faulty and are reported faulty by the power management chip probably is no way to go back and this cheap treat but the battery like a good one but that's the button that's the thing okay let's pick up what the power supplies yeah because there are most of the problems on the power supply so on the power supply you have the mosfet four pins all together yeah it's like on schematics yeah it's like on schematics plus and from here you have that free ceramic capacitors ah sorry here is the ground yeah i tried i tried to connect the battery and remove the other one but actually the battery was still faulty on saying consider replacing the battery or something like that i don't remember exactly so on the on the plus here on the 19 you have the ceramic capacitors you have the mosfet so it's a good idea to see this waffle like like a switch yeah that's a good idea we'll understand the things more easy here and from here you have the other mosfet okay yeah and does the ground okay from the middle we have the coil at the background coil yeah and on the output we have the b capacitor which is an electrolytic one yeah the capacitor has plus and minus goes to the ground and that's our power supply and you have the feedback yeah that's different story and here you have the chip yeah that's the face detector that's the gate and you have one more gate from here yeah that's the gate that's now how these chips they can get switched here so applying voltage on this pin will make the the chip switching yeah how this is switching let me explain you uh let's say you have the wave here the wave on this chip is like that yeah that's one cycle one full cycle of this thing here on the other sheath yeah same thing you have something like that and this is a cycle we're done and wrong but anyway yeah that's a cycle so most of the time the signal is zero on the pin yeah you can see zero and at some point it will be signal there stray signal short yeah when this signal will be in this pin this will be open and then and and and then and the flow will be like that short will be open get close yeah on the other hand on this on the the other chip yeah will be open when this is closed so when this chip the top chip will be closed this will be open and i'll carry the the power on this way switching this coil up down up down you know will create here voltage so that's how the things works how many times this happen how many times probably like 40 times 40 000 times per second so it's like 40k per second yeah per second based on the feedback which is from here feedback the voltage from here can be maintained even if you have one amp when you have 10 amps here you know requirement or if you have here let's say we have 19 volts or you have 10 volts on the input yeah so even if you have 10 or 19 and here the requirement is one amp or 10 amps these things yeah changing the the size of this yeah changing the time when this transit transit uh when this mosfet it's on yeah let's say i need more voltage or let's say the voltage is low so this will be more open here yeah and also this will go to be more open so opening more these these things will create me here more voltage or more amps okay that's not hard so that's the things how they work if i have high voltage and i have no requirements this can be even short like a short thing so that was this chip is doing that's that's you know is modifying the wave shape not the shape the time that's how a power supply is working well like how i said the problems are on this capacitor because all these switching here are like high currents you know all the switching will be even here that's that's the reason why these capacitors are here to cut down all these like spikes because of this this what signal how i would have here here the signal will be something like that that's my signal here will be like a line after the coil yeah but before will be something like that and even here will be low but will still be here and this capacitor are meant to cut down and finally i have here i have no more uh you know signals from these mosfets that's why these capacitors are here that's why this capacitor is here to straight my dc if here i have ac obviously i have ac because that's ac here i have dc okay that's how the power supply is working on aleppo it's not hard it's easy i told you it's easy okay that's what i have to say about the laptops going back to the first one that's the principle of most of the laptops yeah probably this and the other video from yesterday with the laptops will give you like a clear image of the motherboard how the motherboard is working and what is doing okay i think i have to go now for lunch but anyway thank you for watching if you have any questions we'll see for the next friday what we can do and have a nice weekend and see you later thank you bye

Channel: Electronics Repair School

Views: 90,465

Keywords: motherboards basic, motherboards repair, motherboard schematic, motherboads guide

Id: eHAysowx6ow

Length: 69min 26sec (4166 seconds)

Published: Sat Aug 19 2017