Dell XPS M1330 Still won't charge battery

[MisterD]

Hi all, I just spent several hours last night disassembling and replacing the DC Jack on this Dell Laptop, I did a close to perfect soldering job when installing the new jack, got it all put back together and it still Will Not charge the battery.

The charger is putting out the voltage, blue light on it is on. The battery is new, my Stepson (this is his laptop) got a new one thinking it was the old battery was bad but that wasn't the problem. I wonder if there's a small fuse in the charging circuit somewhere on the motherboard, or a way to fix this.

Does anyone know of a solution other than replacing the motherboard? your help and replies are very much appreciated.

[selldoor]

Re: Dell XPS M1330 Still won't charge battery

Are you using a real dell powerpack- check if the laptop is running at its full rate. If the centre "Recognition "pin isnt connecting correctly it wont charge and it wont run at full speed.

[MisterD]

Re: Dell XPS M1330 Still won't charge battery

Yes it is a real Dell Powerpack, it will not even stay powered on now because the battery is critically low and I have no other way to charge it. It will not stay powered on even with the power pack connected to it. I think it's a fault with the motherboard charging circuit. Thanks

[selldoor]

Re: Dell XPS M1330 Still won't charge battery

Post a good clear picture of the area of the motherboard around the connector.

[MisterD]

Re: Dell XPS M1330 Still won't charge battery

I Fixed it!!! Yeah...Pulled motherboard out again and plugged in Powerpack, measured 19 volts at DC Jack Connector and followed to L31 had voltage on one side only, after a close inspection I saw a flaw where L31 solders to pads on motherboard.

re-soldered both ends of it, measured voltage again and I had the 19 volts on both sides, I put the laptop back together and now it's working again and charging the battery. Phew what a job.

[selldoor]

Re: Dell XPS M1330 Still won't charge battery

Good-oh!

[MisterD]

Re: Dell XPS M1330 Still won't charge battery

I hope someone else can benefit from this, it saves them from having to replace the motherboard, I did find some info on this here at this site, the guy at the bottom of the page had the same Model Dell with the same exact problem.

http://www.edaboard.com/printthread155464-3.html

[MisterD]

Re: Dell XPS M1330 Still won't charge battery

I Fixed it!!! Yeah...Pulled motherboard out again and plugged in Powerpack, measured 19 volts at DC Jack Connector and followed to L31 had voltage on one side only, after a close inspection I saw a flaw where L31 solders to pads on motherboard.

re-soldered both ends of it, measured voltage again and I had the 19 volts on both sides, I put the laptop back together and now it's working again and charging the battery. Phew what a job.

This is a poor quality picture but its the corner of the motherboard with the DC Jack removed, if you look just to the upper right of the IC Chip you will see a black surface mounted device that looks similar to a resistor, that is L31 and the bad solder connection was on the side closest to the jack but I re-soldered both sides.

[spidey]

Re: Dell XPS M1330 Still won't charge battery

it is a coil.

[MisterD]

Re: Dell XPS M1330 Still won't charge battery

it is a coil.

I do think it is a coil since it is labeled as "L" meaning coil.

[MisterD]

Re: Dell XPS M1330 Still won't charge battery

it is a coil.

Sorry, I read this wrong the first time, I thought you were asking "is it a coil"

[spidey]

Re: Dell XPS M1330 Still won't charge battery

Sorry, I read this wrong the first time, I thought you were asking "is it a coil"

Np, dont worry. did you fix it ?

[MisterD]

Re: Dell XPS M1330 Still won't charge battery

Yeah, Read Post # 5.

[spidey]

Re: Dell XPS M1330 Still won't charge battery

sory when i first reply i red it but the last reply i didnt. i was allready forget it