Go Back   Technibble Forums > Technical Discussions > Hardware

  Technibble Sponsor

Reply
 
Thread Tools Display Modes
  #1  
Old 06-25-2008, 09:41 AM
Simmy's Avatar
Simmy Simmy is offline
Super Moderator
 
Join Date: Aug 2007
Location: Bristol, UK
Posts: 1,435
Simmy is on a distinguished road
Send a message via MSN to Simmy
Default Packard Bell Odd Colour Output (Attached Video)

I've got a Packard Bell R1000 in parts at the minute and I'm trying to determine what the problem is. As soon as I press down on any part of the chassis, the colour on the display becomes faded as shown in the video.

Video (4.5Mb)

I've never seen this before, but I'm guessing the graphics chip is knackered and would mean replacing the whole motherboard. It doesn't appear to be anything to do with the ribbon cable or LCD. I've tried hooking it up to an external monitor to see if it shows the same thing, but I can't get it working for some reason. When I press the external monitor function key, the laptop LCD goes black but nothing is displayed on the external LCD.

I've tried reseating the CPU and some new RAM. Most of the other components have been removed to make it easier. Any suggestions appreciated.
__________________

Computer Repair Bristol | Bristol IT Support
Vidahost Discount Code | FreeAgent Discount Code | PM Me For A TeamViewer Discount Code

Last edited by Simmy; 06-25-2008 at 09:44 AM.
Reply With Quote
  #2  
Old 06-25-2008, 09:47 AM
thecoldone06's Avatar
thecoldone06 thecoldone06 is offline
 
Join Date: Aug 2007
Location: St. Louis, MO
Posts: 824
thecoldone06 is on a distinguished road
Default

Is it when you press anywhere on the chassis or only on the part that you were pressing on in the video?
Reply With Quote
  #3  
Old 06-25-2008, 11:25 AM
Simmy's Avatar
Simmy Simmy is offline
Super Moderator
 
Join Date: Aug 2007
Location: Bristol, UK
Posts: 1,435
Simmy is on a distinguished road
Send a message via MSN to Simmy
Default

It's slightly intermittent if you press/move other parts of the chassis. But it's guaranteed to do it if I press the spot as shown in the video. The graphics chipset is directly below that point too which is why I think that's the problem.
__________________

Computer Repair Bristol | Bristol IT Support
Vidahost Discount Code | FreeAgent Discount Code | PM Me For A TeamViewer Discount Code

Last edited by Simmy; 06-25-2008 at 11:35 AM.
Reply With Quote
  #4  
Old 06-25-2008, 11:37 AM
thecoldone06's Avatar
thecoldone06 thecoldone06 is offline
 
Join Date: Aug 2007
Location: St. Louis, MO
Posts: 824
thecoldone06 is on a distinguished road
Default

Yeah I'd say thats your problem to. My vote is also a MOBO replacement. Probably not the suggestion you wanted to hear but sounds like thats going to be the solution.
Reply With Quote
  #5  
Old 06-25-2008, 11:48 PM
generalj generalj is offline
 
Join Date: Jan 2008
Location: Keizer, Oregon
Posts: 214
generalj is an unknown quantity at this point
Default

I wonder if its a short somewhere. try to ground the part you are touching to something other then the computer itself and touch it.
__________________

Reply With Quote
  #6  
Old 06-26-2008, 09:15 AM
Simmy's Avatar
Simmy Simmy is offline
Super Moderator
 
Join Date: Aug 2007
Location: Bristol, UK
Posts: 1,435
Simmy is on a distinguished road
Send a message via MSN to Simmy
Default

Well, I managed to get the external monitor working (turns out it didn't like running through my KVM switch). The picture on the external monitor is perfect So it could be the LCD or the chipset. Wiggling the ribbon cable doesn't alter the picture so I don't think that's the problem.

I tried your suggestion generalj, but it doesn't seem to make a difference. Simply applying pressure over the chipset fixes it, even if I apply pressure to the plastic chassis. You're right though, it could be grounding something inside when pressure is applied.
__________________

Computer Repair Bristol | Bristol IT Support
Vidahost Discount Code | FreeAgent Discount Code | PM Me For A TeamViewer Discount Code
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 12:20 AM.


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