how can i fix my broken pc adaptor pin?

Please i used my pc and i tilted it to see the authentication number and my laptop went off because the pin got broken,how can i fix this?

Question by kojogunshot   |  last reply

How to lower wall outlet power?

Hi, I need a circuit to change the AC 240v (UK) into 5v 1A, What is the SMALLEST possible way to do this. I know I could use an adaptor but it there a smaller circuit that could be done?

Question by versos-tk   |  last reply

Why not use a potential divider in power adaptor?

I thought I could put a bridge rectifier directly after the mains and then pass this through two high value and high(ish) wattage of resistor to act as a potential divider and bring it down to 5v. Why would this not be possible?

Question by versos-tk   |  last reply

How can I convert a two pronged adaptor to a three pronged plug?

I have an electric shaver with a two pronged charger.Is it possible to fit a three pronged plug to it?Thanks.

Question by fredbobmccreery   |  last reply

How to test computer screen power adaptor for failure? Answered

I haven't used my Wacom Cintiq 24HD screen in a few weeks and it's not working properly. After disconnecting the power supply from the wall socket for a few minutes and re-connecting at most I get some flickers of the screen, followed  quickly by turning off entirely. If the adaptor keeps power connected then the screen won't do anything, and so I figured it should be the power adaptor that could be failing. I'm really not knowledgeable with electricity so I thought I could ask for some help here: - The power supply adapter has a light that is faintly lit while connected; - It reads *Output: 24V =-=-= 5A* on the back - The end terminal is similar to a Mini DIN Connector type connector, round with 4 pins that are arranged in a perfect square, but not as standart I think. How can I check if the power supply is working properly with a multimeter like the one in  the picture?   I did try setting it almost like the photo, one step to the right (20 V, black on COM and red on VΩmA), and when I touch the pins inside the connector I get a spark out of it. Pressing the black tip as well against the outside ring always result in a spark from the red tip and values reading erratic on the multimeter's screen. Can this be used to make any sense of this? I've looked for power supply replacements and they're looking to be very expensive to get directly from Wacom. One final question: if it is failing, could I try to get some alternative solution working here? I don't know, using an universal adaptor and request soldering a more common connector to this Wacom proprietary one's tip? Thank you in advance

Question by acn   |  last reply

How to Put a dead GPU laptop to use ?

I bought an HP laptop (hp pavilion dv2000)from a friend who sold it to me as it never showed up the display .I though i might replace the Graphic adapter but later discovered that the NVdia trouble chip is integrated on the motherboard.The GPU heats up .I repaired it twice in a repair shop ..all they did was the heat-gun treatment on the chip and applying thermal paste . the treatment worked for two days and the display is gone again .I did the repair twice .I know it boots but does not displays anything .I don't mind opening the laptop apart , but i cant let it eat dust at one corner...what can i do with this laptop ..I have my mac as my main machine ..any ideas !!?

Question by nabilmilestone   |  last reply

Hacking a cassette tape adapter?

Hey everyone!  I was wondering, would it be possible to use the head in one of those cassette-to-AUX adapters as a tape reading head? Finding a new magnetic tape head is like hunting for hen's teeth, so it'd be nice if that were an option.  Many thanks!

Question by DrRorschach   |  last reply

How can I run DC motors found in a CD Rom?

I have a DC Adaptor with variable voltages and I applied the wires to the terminals of the motors but they dont run. Am I missing something. Can they be run by simple adaptors,

Question by AwabHassan   |  last reply

is there any way to make a computer screen into an s video or a composite yellow screen without opening the it up? Answered

I have a monitor to S-video / composite yellow adaptor (picture) and since it can use a Tv as a screen then cant it make a monitor into a "tv screen"? I think that by stripping the wire that connects the monitor and the computer tower and somehow adding 2 leads that go to a composite yellow connector (yellow adaptor in picture) then i should be able to use it as a screen. WILL THIS WORK?

Question by ccrh2008   |  last reply

Laptop adaptor power rating interpretation Answered

Hi all. My laptop power adapter is rated as follows. -Input:100-230 ac volt, 1.6A -output: 18.5 V DC, 3.5A So what does this mean and how important is to follow?

Question by SangpoSangpo   |  last reply

Charging batteries (in my case a 9V) from a Multi voltage wall adaptor?

Hi All, I would like to charge a 9 v rechargable battery from a power adaptor similar to the one below.  Can I just add a female plug to the battery and charge it direct?  Is there an optimum female plug that I should use?  Any advise would be handy. Thanks

Question by lonesoulsurfer   |  last reply

How to make OBD II to USB adaptor

Can any body know or did any body have a project of making OBD II to usb adaptor. Kindly post with pics.. I want to make one to use with OBD II software on computer.

Question by waqasjamil   |  last reply

Help , electric current from adaptor question

Ok kind of a noob question .. so im running 4 12v dc fans using .28 A current in Parallel with an adaptor that outputs 12V with .3 A current. my question is, will i need to add something (resistor or w/e) to limit the current  so my fans dont fry or will i be ok with nothing?.. i also want the voltage to remain at 12V , because i need them running at full  I searched the forums, couldn't find any specific answer Thanks for your help!! -Chris

Topic by cholborn   |  last reply

How to remove an M42 Lens mount? Answered

Hello, I recently bought an adaptor for my Canon 600d ( rebel 3 ? ) to allow M42 lenses to fit to it. That was fine but the adaptor is stuck on the camera. It is not cross threaded. I have tried using slip-jawed pliers really hard, but not as hard as I could because I was afraid of damaging something. There is a small hole in the front of the adaptor if I press that and turn it , the adaptor separates, so I stopped that method. Any advice ? If not , I'll just go with the pliers as hard as I can. Thanks

Question by FriendOfHumanity   |  last reply

Does Anyone know how to make a MicroSD USB adaptor for the R4 Card I lost mine in the water and cant get it back thank u Answered

Hi I lost my R4 MicroSD USB adaptor for the R4 Card in the water and i cant get it back and i dont want  to buy another one is there a way you can edit a USB so it can read a 4GB MicroSD Card Thanks Nathan

Question by ghostmonkeys   |  last reply

Make picooz micro heli controller run from ac/dc adator

Hi all, this is my first question so bear with me.... I want to mod all my micro heli transmitter/chargers to run of a 9V dc power adaptor, I'm tired of changing/charging batteries for them and seen as I sit next to a power socket when I fly this is the best option. For this question I am focusing on the picooz sidewinder remote. What I have planned is to use a dc barrel or 3.5mm jack socket, connect - to the battery - on the pcb and connect the tip to +in on the pcb the switched tip to the battery so that when nothing is plugged in it automatically runs from battery. what I would like to know is... where to add a capacitor and what rating, this to provide enough power for the fraction of a second when the plug is pulled out, without this I would have to "trim" the controller each time because it would turn off for that small amount of time and forgotten where it has been trimmed to. thanks in advance. ps once I have this working I will be doing a full Instructable on this subject.

Topic by Djdavies83   |  last reply

how do i lower the milliamps in my adjustable adaptor?

Hi it seems i need to lower the milliamps, currently at 1500, in my adjustable adaptor in order to run a small dc motor that usually runs with a rechargeable 2.6v battery. i think the ohm rating was 006.5 but im not sure. im trying to test these motors without having to bother to charge up loads of batteries all the bloody time. but i cant test them accurately as the motors run alot faster when plugged into the mains using the adaptor. what do you think is the best solution?

Question by jbasham1   |  last reply

Converting solar LED string lights to a wall wart adaptor.

Hi all I recently picked up some bargain priced solar string lights for room decoration and to provide a low level of light at night, I suffer from Meniere's disease and one of my triggers is moving around in complete darkness, unfortunately I also have problems going from darkness to light so simply turning on a light can also trigger an attack. I've tried all manner of different lighting but most were not suitable for a variety of reasons. A friend who is also a sufferer suggested LED string lights, the kind used at Christmas or to give some decorative lighting in gardens, he has similar problems with light and darkness to me and had been using them for several years he now has LED lights set into coving in every room of his house, I borrowed a loose string set of his he uses on some plants in a small conservatory while he was away on holiday and to use the same words I did to him on his return they were "Bang on perfect" bright enough to be able to move around comfortably (imagine a couple of candles in a bedroom) but not so bright that they keep me awake. I've had solar lights in the past and knew that the bargain price was probably because they had been in storage for some time so was not in the least surprised to find the batteries no longer take a full charge, I swapped out the old batteries for new ones but to be honest I bought them more for their look than the solar capability, I was originally seeking some mains ones but not wishing to have a hundred or more all I could find were solar or battery, I really don't want the hassle or expense of constantly replacing batteries and the solar ones come on automatically at night so it seemed a good compromise, unfortunately I'm still having problems, whether it's an issue of their not getting sufficient charge from the autumn sun to fully charge (the panels are stuck to my windows so are in full sun all day) or simply that the batteries are running down too soon they are just not lasting long enough for me to rely on them. What I would like to do is change the power to a mains wall wart, each string is powered by a singe AA 1.2v 600mAh battery and I'm hoping I can swap this out for a hard wired adaptor of suitable output. I'm not really an electronics/electrics guy, I can build wiring looms for motorcycles OK, I've made some simple additions to the circuits on my electric bike to power an alarm and installed 12v LED car bulbs into its lighting but that is all very simple low voltage stuff, I don't have much experience with converting from battery to mains. My questions are pretty straightforward and I'd like layman's answers, a whole lot of technical chatter about amps living in Ohms and suchlike will get me nowhere, all I want to know is is it a viable option and if possible where I could obtain the necessary adaptors suitable for UK 240v mains electrics online. These are the only tech specs I have on them that seem appropriate to my question are they are Solar Power: 2V 100mA If it's any help these are the lights in question. Thanks in advance for any help ideas and suggestions. NG.

Topic by Nostalgic Guy   |  last reply

electric current of Motherboard (approximately)? only motherboard, processor and ram, no HDD, PCI, PCIe, DVD Drive?

I made a plan to make the battery for the motherboard, I want to know, how much current is needed. I asks this because I have broken mutimeter. and i have a plan to buy MSI 785GM-P45, amd athlon II x2 245

Question by Rendydevara   |  last reply

dos any one know were to buy cheep laboratory equipment in The GTA or grater Toronto Area?

I need a: Hotplate, water condenser, three way adaptor,vacum adapter, claisen adaptor, three neck flask,sepparation funnel,dry tube, a flask, distilation colum,and a capillary with fine outlet.

Question by dciocoiu   |  last reply

Best point of connection for my external "Cantenna"? Answered

I have a "Cantenna" I built for my old laptop and it (the Cantenna) works GREAT!. I would like to connect it to my new USB wireless network adaptor (Linksys WUSB600) for better reception on my new laptop. I'm trying to determine the best point of connection (on the usb circuit board) for a short pigtail coax wire to connect my "Cantenna". The usb adaptor should have its own built in antenna on the circuit board but I don't know where it is after examining it.  

Question by rpurinton   |  last reply

now that rock band 3 has been release i was wondering if i buy the midi adaptor cani make my ps3 drum kit compatible?

I want to know if the midi adaptor can make my ps3 drum kit compatible with 360 and i enter to amazon and the weight of the item is 16pounds is that right?¿?

Question by luis-acs   |  last reply

Psp external battery

I was wondering if anyone knows how to make a external battery pack (via adaptor) and make it so it will run from the battery pack. my concerns are: matching the voltage and mAH. as well as ensuring the safety of my psp i know that i already need the plug for the psp from the ac adaptor, anything else? also if possible, keep it as cheap as possible.

Topic by Dmanthe1   |  last reply

USB charger? Answered

I want to make a usb charger with 3 ports in which I can plug my laptop adaptor (16v, 2.5A)and charge my phone and other usb devices. I am planning to use a Lm-317 to regulate the voltage. Will it be fine or I need to consider something else also? And please don't tell me I can buy one!

Question by Ahtasham Ahmad Mohtashim   |  last reply

servos run on 6.5V, but how many amps?

I have five servos running off a picaxe sd21 servo controller and it will operate using four AA batteries, but I want it to run off a wall adaptor. Now theres plenty of adjustable adaptors on the market giving from 3V to 12V and I've seen one that might work for me that can be set to 6.5/ 7.5V, but does anyone know the suitable current range for my device.

Topic by jonnymelon   |  last reply

any suggestions of how to fix my bass?

I used an adaptor of the input in my bass and its been stuck there ever since plus some of the wiring inside got disconnected

Question by cris101   |  last reply

Zune to Ipod socket connector

I've just got a ZUNE, love it, but all MP3 accessories seem to be made for Ipods. Has anyone seen a adaptor from Zune to Ipod accessories?

Topic by destamator   |  last reply

Is a NVIDIA GeForce 9600 GSO Video Card compatible with a ATI Radeon X1200 graphic adaptor?

I purchased the NVIDIA card and installed it and the setup wizard is telling me that my graphic adaptor is incompatible and will not install the software. I tried downloading the NVIDIA Driver 182.08 from but that will not get past the setup either. It says that it cant locate any drivers that are compatible with my hardware. What can i do to make it work? Or did i just waste $130 on a Video Card that wont work with my PC?

Question by Blazer40   |  last reply

Iphone 6 component out?

I am connecting my car to an Apple CarPlay head unit via the lighting cable. I am also trying to get a component out as per older iphones however I am aware that apple no longer offers this. I know that there are adaptors out there however I know that apple can kick up a fuss unless you use genuine apple parts. I know that there is a HDMI and lightening adaptor and that is exactly what I am looking for except it must be Component. Is this possible?

Question by SamC17   |  last reply

Led light board help?

I want to connect a led light board;=item3a67dca2b7#ht_5240wt_1139 To an ac power adaptor;=item4153343382#ht_4258wt_905 What fittings/ connectors do i need.  I know nothing about led lighting at all. Please help  I want to make a light base with these components to light up an alcohol bottle from the base up 

Question by aussiedude   |  last reply

How to make an automatic switching power supply for a 12v lamp (wall adaptor and batteries)? Answered

I'm converting a few lamps to run on 12v for wedding decorations, but would like them to have a bit more useful life after the big day. I am going to power the lamps from 8xAA batteries (to give 12v) which according to my calculations should power my 12v 4.5w (so 0.375a) LED bulb for somewhere between 4 and 5 hours (plenty of time for when they will be used). I would like to also put a DC socket on the lamps so they can be used as normal desk lamps with a wall adaptor, but still have the ability to run on batteries if needed. The simple solution would be to use a switch which can toggle between battery power and the wall power, but I would like to (if I can) wire it up so the switch is only "on or "off", and it will always run on wall power if it is available, but to switch automatically to battery power if not (if the cord gets pulled out or if there is a blackout, etc). I think I have worked out a circuit for this, but I haven't tested it yet, and I would appreciate any feedback on things I might have overlooked, or if there is a simpler way to do it. In my plan below: Wall Power (when available) runs from the DC socket, to the P-Channel mosfet gate (causing high resistance for the battery, effectively disconnecting it). The Power passes through a diode (to stop the battery connecting to the mosfet gate) then to the switch, bulb and to ground. If the wall socket is unplugged, or if there is no power running to it for some reason, then the mosfet gate drains via the resistor (I am unsure of what resistance to use here) to the negative battery terminal so the mosfet now provides low resistance for the battery. The Battery power runs to the mosfet, if there is low resistance it then goes to the switch, bulb and negative terminal on the battery. I have very limited space in the base of the lamp to put all this in so I am trying to keep it minimal and using as small components as I can (so I can keep as much concrete in the base as I can for stability). When I get it sorted I am intending to publish the project as a step-by-step for anyone else who might like a battery backed up lamp. If anything doesn't make sense please tell me and I will try to clear it up. Thanks for any help in advance!

Question by RandomIdeaMan   |  last reply

What to do with random stuff?

So I have lying around the following items: An rc car (all the components work, i just shorted out the battery, and they don't sell replacements here) A DVD player (The motor that spins the DVD around burned out, I tried to replace with a motor that was the exact same size and everything, and now it is behaving funny) a satellite box (it's good, we just cancelled our subscription, so they took our antenna) an lcd screen that I too from its casing (BTW, how do I tell which pin is which (I have a multimeter, but it doesn't really help in that matter)?) A Linksys wireless router (including the wall adapter) An old phone ( look here:;=500&calledFromFrame;=N&application;_id=89654&fcc;_id=%27LJPNSW-1NX%27) A Pirates of the Caribbean alarm clock that is supposed to project the time onto the wall when you push it down. A dismembered remote from a different remote control item (I only have the remote for that one) A fishing reel that I haven't been able to put back together Miscelleny av wires, wall adapter, other wires So where I am going with this, is, what totally awesome machine can I build with this stuff?

Question by A-Nony-Mus   |  last reply

Interfacing cell phone LCD's with VGA/DVI connectors

Anyone have any experience with this or know if such a connector/adaptor exists? I have a 320x240 display I pulled from a Blackberry 8700g and would like to run video on it off an old G4 tower. Thanks for any suggestions!

Topic by cba20k   |  last reply

could i use a 12v DC adapter and the switch on the outlet to lock/release an electronic strike lock?

Could i hook an electronic strike lock to a 12v DC adaptor and just use the power switch on the outlet to lock/release the door?

Question by dpdonohue   |  last reply

I want to use webcam with 10 meeter cable but its not working.

I want to use webcam with 10 meeter cable but its not working. is it need an adaptor or external power source. I want to use my webcam as surveillance camera?

Question by dosti61   |  last reply

Running Arduino and a phone off 1 usb port

I am planning to make a clock using an Arduino nano, with in-built USB port for charging. Can I use a 1A usb wall adaptor and run the arduino and charge a phone without running into problems?

Question by ModderMan   |  last reply

does the sd or sandisk cards have fit completly to use with adaptor to plug into my pc.?

I no this sound so stupid but i have a adaptor for my sony camera and i just got microsdhc card with adapter and i trying transfer stuff from my phone to the computer or vise versa.i dont want mess up my card but will it work if i still can fit into the adapter from the camera to the still has little it only75%fits.will it work or mess it up. so what i trying to ask is if even though my sandisk is littler than the slot that i need to plug in can it still read it or no?again it sound stupid but never know til ask.dont want mess it way my pc kinda old.only has one those thick usb plug ins.that why i want know if i can use my camera adapter and just stick my little card in best as possible and if it thanks so much

Question by brianne413   |  last reply

whats the difference between magnetic wire and the enameled copper wire in dc power adaptor's transformers? Answered

Hello, i want to know, aside form colour, what is the diiference between retail labeled magnetic wire, and the enameled copper wire i find in a dc power pack (battery charger). the wire i am talking about is the thicker wire,  not the thin wire that the AC power flows through. i want to build a coilgun, but cannot afford magnetic wire, and want to know if the wire in the transformers will work. from what ive seen the guage / size is the same, and the only seeable difference is the colour , where one is copper colour and the other is red.

Question by oldmanbeefjerky   |  last reply

Make some noise with 110v sensor

I have a presence sensor 110v (lights a lamp) and I need make some noise too. I already insert one ac adaptor 12v with a resistor anda a pc speaker and make a irritant noise, anyone have othe idea thanks

Question by mouserock   |  last reply

I have 5 rotating led display stands with no power supply, they use battery or power, would like to use power adapter?

The units use 7 flat LED's different colours and are situated in the middle facing up from a rotating mirror, underneath is a compartment for 3 AA battery's, there is also a small hole and pin connector for a power supply, it will only take a very small connector, there is no label that tells me voltage requirements,  My question is: I'm looking for a power adaptor and have no idea what output voltage I should look for, I have never seen a 4.5volt adaptor (referring to 3 AA batteries) I know I will need to take one device with me to find the correct size plug. it is smaller than usual, any ideas would be gratefully received

Question by NicholasB109   |  last reply

Is there any way to use devices on my old TV? Answered

I took a 7" Action ACN-3700 portable black & white CRT TV that was sitting on a shelf. It has an external antenna input on the back but it uses a mini sterio jack. Is there any adaptor for RF?

Question by Mr. Squishy   |  last reply

how to build a portable speaker (for ipod) with a 10w speaker, 9v battery and a male adaptor, plz help!! :(?

I am attempting (but failing) to build y own portable speakers im trying to use a 4ohms / 10 watt speaker with a 9 volt battery and a male jack for my ipod i have assembled it all to the best of my knowledge but when i put the battery on the bare wires (testing if it works), ipod says music is playing but the speaker has other ideas.   this is my first build of my own and i can't get past this problem :'( any help would be much apreciated :)

Question by Reger3142   |  last reply

Why wont my computer charge or the screen come on?

When I push the power button on my sony laptop all the lights come on. When I release the button the battery charge light turns off. I have checked the dc adaptor and it is good. The dc connector on the motherboard seems ok. could there be a problem with the power switch?

Question by lisarucker1   |  last reply

What's the pinout pattern for the Giro Tuneups cable on the 4 conductor 2.5mm phone side?

It's apparently different than the pattern for my Droid 2 Global so I need to know so I can wire up an adaptor from the 2.5mm Tuneups male to the Droid's 3.5mm female so the whole phone and iPod function will work inside my ski helmet.

Question by christden 

I have a question about those wireless enabled USB print servers

I've seen these USB to Wi-Fi adaptors and I'm wondering if they act like wireless USB ports. The gist... I'm going to use a USB interface board and I want to know if I can use a wi-fi print server to make my control a robot via wireless. Any suggestions are welcomed.

Question by ry25920   |  last reply

Is this mini parallel LED set up okay?

I have 6 LED's in parallel each with a resistor. Specs as follows: LED: 3.2v 20mA (White) Resistor: 150 ohms 1/4w resistors Power supply: 6v 300mA wall socket adaptor Is there a difference if the resistors are 1/4w or 1/8w? Since LED's are current driven, is there a problem with the power supply providing 300ma? Thanks for your help.

Question by yankyg   |  last reply

ethernet cable replacement for wireless?

Hi! new member with a question!  I just received my tv box which connects with my router via ethernet there a way to replace the cable?i saw about plc adaptor but it is too expensive for me! is there another way? eg a wifi receiver for plug with ethernet line etc? hope you understand what i mean cause my english are not so good!!!thank you!!!

Question by aelin   |  last reply