Go Back   Technibble Forums > General Computers > Tech-to-Tech Computer Help

  Technibble Sponsor

Reply
 
Thread Tools Display Modes
  #1  
Old 12-09-2010, 06:39 PM
MobileTechie's Avatar
MobileTechie MobileTechie is offline
 
Join Date: Oct 2009
Location: UK
Posts: 4,266
MobileTechie has a spectacular aura aboutMobileTechie has a spectacular aura about
Default Non charging XPS

I have an Dell XPS M1330 in. Customer wanted a socket replacement on the basis that it works fine off battery but not off DC and won't charge. They said they sometimes got it to work by wiggling the power jack.

I dismantled it and the socket test out OK in that 19.3V shows across the terminals but I changed it anyway just to be sure. This has made no difference. Still no reaction to DC power. I can't see anything wrong on the mobo.

Anyone seen this before? I did have an M1330 a while ago on which the IC near the jack socket was burned out but that didn't start at all.
Reply With Quote
  #2  
Old 12-09-2010, 06:56 PM
arrow_runner's Avatar
arrow_runner arrow_runner is offline
 
Join Date: Nov 2008
Location: Cincinnati, OH
Posts: 920
arrow_runner is an unknown quantity at this point
Send a message via AIM to arrow_runner Send a message via MSN to arrow_runner Send a message via Yahoo to arrow_runner
Default

Does the light ever go out on the charger when you plug it into the laptop or when you press the power button?
Reply With Quote
  #3  
Old 12-09-2010, 06:59 PM
Knightsman's Avatar
Knightsman Knightsman is offline
 
Join Date: Nov 2010
Posts: 2,356
Knightsman is on a distinguished road
Default

If the jack is fine, and the power supply tests fine, and your not charging, I say motherboard. Def if you are not getting any power at all from the power supply.
Reply With Quote
  #4  
Old 12-09-2010, 07:27 PM
MobileTechie's Avatar
MobileTechie MobileTechie is offline
 
Join Date: Oct 2009
Location: UK
Posts: 4,266
MobileTechie has a spectacular aura aboutMobileTechie has a spectacular aura about
Default

Quote:
Originally Posted by arrow_runner View Post
Does the light ever go out on the charger when you plug it into the laptop or when you press the power button?
No the charger light stays on so doesn't seem to be a short.
Reply With Quote
  #5  
Old 12-09-2010, 08:01 PM
fixitdaz's Avatar
fixitdaz fixitdaz is offline
 
Join Date: Oct 2010
Location: Pershore UK
Posts: 410
fixitdaz is on a distinguished road
Send a message via MSN to fixitdaz
Default

will it power up with the battery removed and just on the adapter
__________________
We don't have problems, We only have challenges.
http://www.techrepairs.co.uk
Reply With Quote
  #6  
Old 12-09-2010, 10:36 PM
MobileTechie's Avatar
MobileTechie MobileTechie is offline
 
Join Date: Oct 2009
Location: UK
Posts: 4,266
MobileTechie has a spectacular aura aboutMobileTechie has a spectacular aura about
Default

No.


.......................................
Reply With Quote
  #7  
Old 12-09-2010, 10:42 PM
DCGPX's Avatar
DCGPX DCGPX is offline
 
Join Date: Feb 2010
Location: Bradford, United kingdom
Posts: 992
DCGPX is on a distinguished road
Default

Seeing as this is a Dell..................is it whining about the Adapter not being Dell?

Reason asking is I have had Dell's in where I use my Universal PSU and whilst they will power up they don't charge unless Dell PSU. I'm leaning towards the sensing circuit. Whilst it might detect PSU as Dell, if circuitry foofed, it might not let any charge through.

How you check this theory however is another matter!
Reply With Quote
  #8  
Old 12-09-2010, 10:47 PM
ATTech ATTech is offline
 
Join Date: Jan 2010
Location: Sacramento Area, CA
Posts: 1,784
ATTech is on a distinguished road
Default

It sounds like to blown MOSFETs. Check the voltage levels where the battery plugs in.
Reply With Quote
  #9  
Old 12-09-2010, 11:04 PM
fixitdaz's Avatar
fixitdaz fixitdaz is offline
 
Join Date: Oct 2010
Location: Pershore UK
Posts: 410
fixitdaz is on a distinguished road
Send a message via MSN to fixitdaz
Default

Quote:
Originally Posted by MobileTechie View Post
No.


.......................................
so the unit will not power up at all with that adapter, you can normally run with out a battery, I would try a different psu you may have the voltage not under load but when under load the voltage drops
__________________
We don't have problems, We only have challenges.
http://www.techrepairs.co.uk
Reply With Quote
  #10  
Old 12-10-2010, 02:14 AM
meanderer meanderer is offline
 
Join Date: Aug 2010
Location: Brooklyn, NY
Posts: 362
meanderer is an unknown quantity at this point
Default

one thing to learn here is to never trust a client's self-diagnosis.

Based on what is discussed it should be narrowed down to the AC adapter or the motherboard's power circuit.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 01:59 AM.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Technibble.com is based out of MELBOURNE, AUSTRALIA.