My a6jc does not receive power from the charger

Hi all!

I have a big problem with my a6jc laptop:

When I connect the power supply to it, the led in the power supply starts blinking and the laptop does not receive power, nor the battery charges.

I can turn it on, but it's only running on battery power, so it's a matter of time until I cannot access my data normally anymore.

I need help identifying the part responsible for supplying power to the board/battery, so I can replace it (it's out of warranty now).

I found this at asus estore, but don't know if it's related:

http://estore.asus.com/shop/item.asp?itemid=3249&catid=459

Item Detail Item Detail
A6J INVERTER_BD. Name:
A6J INVERTER_BD.
Item#:
60-NFHIN1000A01

Thanks in advance

 

I can tell you that you are not looking for the inverter board, that is related to the LCD.

 

thanks... I've dissassembled the board now, and theres a heavy burnt smell coming from the grey cilindrical components near the battery, I wonder if those are replaceable, since they seem to be fit in some sort of socket.

(I can provide more details and photos if necessary)

what pisses me is that the board is working, it just gets no power...

 

Post photos, maybe a reseller has the components and can sell them to you. Otherwise I'm afraid your only option is to send for repairs and pay the extra handling price.

Edit: wait, isn't it under warranty? If so then maybe this is supported by the warranty.

 

Ok, I'll post pics later, gotta go now

 

back, still have a couple minutes, I managed to take a photo with my cell.

Those four cilindrical components in a socket, what are those? The burnt smell comes from there.

thanks

 

I have no idea what they, probably some type of power components.

Is this on the mainboard by the way? Because if so, there's little chance you'll find the components themselves, you'll need to get another mainboard.

 

Yes, they're on the motherboard. Right now I can't afford any repair (a new mainboard must be expensive) and I need my laptop for college, in the worst scenario I'll have to use my old Piii laptop, but I was wondering...

The charger supplies around 19v, and the battery around 15v... If I get a AC/DC converter that supplies around 15v (and enough current) could I plug it to the battery's pins (wich I would find out with a multimeter)? If yes, what minimum current should it be able to supply?

 

OSHI OSHI OSHI OSHI OSHI OSHI OSHI WAIT!
LOL

This happened to me
Let me tell you what happened

I have a V6J, Plug in power adapter, starts blinking battery indicator led

Why? Cause:
Bad charging circuit
Cause of that:
some voltage regulator in the charging circuit of the motherboard must be bad or the charging logic chip must be damaged
cause of that:
Did you plug your laptop into a powerstrip with another device that shorts the power to operate? :i.e. Powerful Soldering iron killed my laptop something
basically
Asus doesn't design their motherboards to protect against reversed polarity so that'll kill your thing basically (short definition)
Me:
fishnpilot, who replied to me about this, knows quite a bit we were pming each other with info:
Hello, I've recently read your post on the s96 charging circuit thread and I am glad you posted. I've been looking for someone who actually can provide technical knowledge about the mainboards.

him:

me:

him:

If you also bought it with a credit card you may get more warranty through your credit card company
read this thread
i am attempting to do this right now actualyl
http://forum.notebookreview.com/showthread.php?t=64951&highlight=warranty+visa

sorry if its a little confusing i was in the middle of an assignment to do lol.. i kind of rushed to post this

 

Thanks such an informative post!

Indeed, that's what happened to mine. It all matches, no power from the charger, blinking led indicating a short circuit... charging circuit is gone.

I noticed the power supply socket was loose, which explains the spark I saw and the smoke coming out of it (I guess it took a lot of abuse). I presume that after this the electronics in mine are dead...

The only way is really getting a AC/DC converter that can output the necessary Volts/current.

Electronics is not really my area, I wonder if I could use the original power supply and a little home made adapter with some resistances between to lower the DC output?

 

Ok, my findings so far with the multimeter (updated):



I don't know what are pins 3-6 used for, dummie, battery management?

Could it be that 7-8 are connected to the same place?
(edit: yes, they are, and so are 1-2 )

I couldn't get any more readings.

I only have one chance, therefore I don't want to screw up

 

Its actually quite easy. I figured it out so so can you but i love electronics i just don't have a degree yet or have taken any classes. In electronics ground is usually - and it seems to me that everything goes to ground always.(correct me if im wrong) so the one that is seperated from all the other one is probably ground or -. On my v6j battery the last one was positive as well. If i connected the negative terminal to the - of a voltimeter and the positive terminal to the + of the multimeter (the positive terminal being the last one) it gave me a reading of the battery which i have since then depleted so its around 12.4volts(suppose to be around 16v at full charge). I think i said in my last post that i used the adapter from the 15minute battery charger which provided 16v @ 4 amps which means 64 watts. My laptop doesn't use more than 50watts so 64 should be sufficient to keep it from turning off suddenly(due to load). Anyways after finding the polarities on the plug of the adapter i just matched them with the battery leads on the laptop. I then powered on and i was very emazed that my shoddy power supply worked. It's kind of hard to get wires to attach to the terminals in my opinion, make sure it doesn't touch any other pins. Also don't move your laptop around while using it, you may risk damaging your harddrive. I think i damaged mine when i moved it it suddenly shut off and turned back on and off within a second. It probably wrote some random data to places where it shouldn't have or it may actually have been scratched. I now cannot boot up with a unmountable volume bsod. Trying to read from the drive using a usb enclosure freezes my computer up.

 

its best if you try to get it fixed asap from asus directly by arguing that its asus fault as fishnipilot suggests or you can try the cc warranty thing

 

Very informative thread. ASUS users, beware of connecting powerful electrical machines on the same line as your notebook!

eatbuckshot, about the harddrive. I find it very unlikely that moving the laptop damaged the HDD directly because of mechanical shock. I think when you moved it you briefly shorted the + and - wires which were connected to the battery terminals, and that messed up with the power circuits in the computer. The HDD got the worst of it... sorry about it.

So to the OP, be very careful to avoid any possibility of shorting the two wires when you connect them to the battery terminals.

 

oh i didn't mean to say that the cause was because of moving, but that the moving caused the loose power connection to rapidly turn on and off my computer which didn't let my hard drive to turn on and off correctly

 

Oh yes, that's also quite possible.

Still be very careful to avoid shorts.