Tried to fix ac adapter...

by cutting up chord and reconnecting the wires but I hooked the ground to live and live to ground (whoops lol im dumb). I plugged it into my laptop did I fry it? The light on the adapter went off immediately when i plugged it in and made a noise. I tried to start it up but the battery was out of juice I think and I wont get another adapter in the mail for a while is it dead plz say no :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry:

 

I think this should get moved to the right section...

 

Oh whoops sorry I was in panic mode didnt think about that. Really just need one word answer then u can delete it.

 

There's not really a one word answer. Did the computer make any noise? It's possible the adapter fried before any current even got to the computer. You may have just broke the adapter even more. Cross your fingers and try the new adapter when it comes.

 

Yeah, honestly there is really no way to tell.

 

ok. nah the computer did not do anything at all. the light on the adapter shut off and the adapter started kind of beeping when it was plugged into the comp, as soon as i removed plug the light came back on and beeping stopped. I was thinking maybe i just messed up the adapter. so there's no way of knowing huh. but its a possibility. well crap. The light on the adapter still comes on when i plug it into the wall...i tried hooking it up correctly and plugging it in to the comp but doesnt work. computer did not smoke or anything and i plugged in my wireless bluetooth adapter for my mouse that was in my laptop when it happened into another computer and it recognized it...is that a good sign? The current would have fried the USB dongle too right?

 

No smoke is a good sign.

 

why cant you try to turn on your computer on battery so that u can make sure its runing. also spec your computer in full

 

their is a way to know.
Do you have a voltmeter around?

You will need to check the voltage outputs on the power supply.
Their is a sticker on one side of your power brick. It will say what voltages your power supply outputs. Usually its like 14-20volts. You should plug the one end of the ac adaptor into the wall, and test the other end with a voltemeter. The power supply should run at the voltages it is designed to.
I cant say what the pop and noise was. It could have been the laptop or the power supply.

Did either make any kind of putrid electronic burning smell. Like the smell made by exploding capacitors?

I think all you did was short the power supply.
Unfortunately to replace the fuse in the power brick, you will have to use a knife to cut it open. This is because the power brick is most likely sealed.
This is dangerous to do, but I am only recommending so we can find out if the power brick is the problem. If you can get the power brick apart you can physically see if any of teh inside circuitry is burned out.
The inside should have a small round fuse, I guarantee it burned out, and you probably burned out a few surface mount resistors/diodes.

If you decide to open the power brick, you may need to cut it open with a hot knife/ use a hack saw. and cut along the seam.
Once its opened you should not use it again.
I only recommend doing if the power brick is inexpensive, and its the only way to know if it i broken or not.

If you opened your laptop up, you will not be able to tell if the board is broken, because their is a whole power management cicuit which uses dozens of PVM's and microcontrollers. (many of which do not look burned when them break, thus making the process of finding the broken link much harder.)

I really hope that the problem is in the power brick and not on the circuitry of the motherboard.


K-TRON

 

ok it may be fried. let's say it was, would a pc repair guy maybe be able to fix it? If so is it costly? If not would anything be salvageable or do I have a great new paperweight?

 

I've seen computers killed in a second with wires reversed like this.
The power brick is almost definitely fried.
The motherboard is also likely dead. You're lucky if it's not.
The only real way to know would be to try another brick, but if that does not work, then it's your motherboard. A replacement board will be very costly to replace (average $500-700 in the computer shop where I work).
I however replace boards on my own for about 150 parts and labor. I buy the board for 150 on ebay (always new or refurb though) and the labor is free, I do it myself! Sadly any store you go to will only sell a part from a "reliable distributor" and from them, a board will cost anywhere from 300-500 dollars. Then they mark the part up a few bucks, add on labor (swapping a board is not a small job) and there's your price...

 

if you blew out the motehrboard, than that will blow out the graphics card for sure if the gpu is integrated. The harddrives, screen, cpu, and graphics card (if dedicated) will all be salvageable. The memory is very voltage sensitive, so it may be totally gone.

Get a replacement power adaptor, and try powering it up, if the system does not power up, the motherboard is fried.
A pc repair man cannot repair this. The wiring of the motherboard is extremely hard to navigate let alone fix.

K-TRON