Go Back   Computer Forums > General Computing > Hardware
Click Here to Login
Join Computer forums Today


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 01-30-2013, 05:23 PM   #1
Beta Member
 
Join Date: Jan 2013
Location: USA
Posts: 2
Default hp Laptop power issue

I have an HP g62x-400. The original problem was a frayed LVDS cable. I replaced the cable and it came on and worked. I reassembled the laptop and when I went to turn it on all I received was a brief flash from the power button light. Every three seconds it tries to turn itself on again. The fan makes about a 40 degree spin and the power light flashes and it's off again. This repeats until I unplug it and remove the battery.

Currently I have it stripped down to just the board, power button and power cable...still the same. I have checked the three small fuses I was able to locate on the mobo, and they tested fine. The board # is DAAX1JMB8C0 Rev C. I am a skilled solderer and repairman, so feel free to shoot out any ideas. Thanx
__________________

enothor is offline   Reply With Quote
Old 01-30-2013, 05:39 PM   #2
In Runtime
 
Mossiac's Avatar
 
Join Date: Jan 2013
Location: UK
Posts: 357
Default

Blown capacitor or other such like component.

But if you want to start with the easier stuff look at all the power connectors.

Mossiac
__________________

__________________
OS: Windows 7 64-bit Case: Commander MS-I
Mother Board: GA-880GM-UD2H CPU: AMD PhenomII X4 965 3.4GHz(Stock) RAM: 16GB GPU: GeForce GTX 550 Ti
Mossiac is offline   Reply With Quote
Old 01-30-2013, 05:55 PM   #3
Beta Member
 
Join Date: Jan 2013
Location: USA
Posts: 2
Default Re: hp Laptop power issue

What do you mean by look at the power connections?

---------- Post added at 05:55 PM ---------- Previous post was at 05:52 PM ----------

I've tried different adapters and tested the input levels at the AC jack plug.
enothor is offline   Reply With Quote
Old 01-30-2013, 05:59 PM   #4
In Runtime
 
Mossiac's Avatar
 
Join Date: Jan 2013
Location: UK
Posts: 357
Default

The solder joins and such. Basically trace where the power goes and see if there is anything out of place.
__________________
OS: Windows 7 64-bit Case: Commander MS-I
Mother Board: GA-880GM-UD2H CPU: AMD PhenomII X4 965 3.4GHz(Stock) RAM: 16GB GPU: GeForce GTX 550 Ti
Mossiac is offline   Reply With Quote
Old 01-30-2013, 09:19 PM   #5
Wizard of Wires
 
setishock's Avatar
 
Join Date: Feb 2005
Location: Not sure
Posts: 10,030
Default Re: hp Laptop power issue

Sounds like a short circuit somewhere. Check all of the RF plates to make sure they are not touching where they're not supposed to be. Also check any wiring for shorts.
If it ran fine last time you had it torn down and then started doing that when you put it back together, it stands to reason it's a reassembley boo boo.
Look close it's easy to miss a plate out of place or a shorted wire.
setishock is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -5. The time now is 02:02 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.6.0