Question

Hp Pavillion dv6000 there is no video on the computer LCD panel or external monitor.

Asked by: isitcomputers

I have been given an Hp Pavillion dv6000. There is no video on the computer LCD panel or external monitor.
After talking with HP I have found that there "was" a hardware issue with this model.  Unfortunately, the "Limited Warranty Service Enhancement" is no longer available for free.
My question is, has anybody repaired this themselves?   The hp website states a problem with the bios:
 http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=us&docname=c01087277#
If it is the bios, how do I update the bios if I can't see the screen?
The tech on the phone stated it may have been a system board fix.  Any help would be appreciated.
Thanks!
Ian

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Asked On
2009-04-21 at 09:44:49ID24342083
Topics

General Laptop

,

PC Laptops

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Answers

 

by: -CPG-Posted on 2009-04-21 at 09:55:53ID: 24196495

Can you remote control the laptop and apply a BIOS update through Windows?  

Just put it on a network so it gets a DHCP IP address, find out which address was given to the device using AngryIP scanner to scan your subnet for I.P's in use.  Then when you have the IP you can push a copy of Dameware (or similar) onto the laptop and go from there. Can also check beforehand to see if it will allow you to connect to it using the terminal services client as that would save you going to the trouble of installing a third-party application.  

 

by: joefreedomPosted on 2009-04-21 at 10:08:47ID: 24196607

You might consider first booting the laptop with an "on-the-fly" operating system such as Knoppix (http://knoppix.net/get.php) to test if you can get any functionality from the video adapter before going through the hassel of adding it to a network, locating its IP, etc.  Its your call.

The BIOS update you pointed out may very well fix your issue however, after briefly reading it, it seems to pertain to fan control which leads me to believe this is an effort to thwart overheating/cooling issues.  Generally you should get some output from the machines display if the hardware components are OK and it is just overheating after "x" amount of time.  Granted there are circumstances where this may not be the case, that is just based on my experience.

You are not getting ANY video output from the laptop?  Not even the BIOS boot up or any POST messages or anything, windows splash screen?

 

by: isitcomputersPosted on 2009-04-21 at 10:41:43ID: 24196947

Tried Knoppix boot cd, no luck.  It was reading the drive as the green light was flashing but then it stopped and I noticed the system seemed to reboot....can't tell as there is no image, but all the lights went off then came on and repeated the process.

I think I am dealing with multiple problems.  I will see if a remote control is possible, but now I am thinking the system isn't booting that far.

 

by: joefreedomPosted on 2009-04-21 at 10:58:31ID: 24197133

I personally would start from the ground up with this machine...I'd check all possible hardware components for potential failures. This one could be hard to diagnose without verifying all your hardware is in good working condition. If possible try swapping out memory for known good sticks (hopefully you have some laying around), I'd start there, bad memory sticks can cause more than one odd problem, such as continual reboots, especially if the laptop is sharing the memory to produce it's video output...

Pull the Hard-drive out and throw it as a spare in another machine (check out IDE/SATA to USB adapters for 2.5inch drives) to test that the drive is in working condition.

Check your power supply, look for popped capacitors on the board. How does the processor look? If possible pull up the keyboard clean it out since you have it apart! ;-) Look for the physical monitor connection and cable, what condition are they in? The list goes on. Have fun!

Or, throw it away, it sounds like it was free (^_^)

 

by: pkjesusPosted on 2009-04-24 at 14:04:48ID: 24229219

Hi,

From my experience with HP dv6000 models,

If the computer turns on, fan turns on, seems to read dvd's, lights are on, but nothing comes up on LCD or external monitor, then you are experiencing a motherboard failure.

This is a common problem with the dv6000 series; I've had at least 15 people come in with this problem, from the beginning of the year.

Unfortunately this problem cannot be solved unless you replace the motherboard. And even more unfortunate is the fact that, if you don't have a warranty for the laptop anymore, it could cost you up to 250$ to change your motherboard. So bottom line, you'd need another laptop.

However, if any of you found a DIY solution for this, please post it. I'm really curious.

 

by: pkjesusPosted on 2009-04-24 at 14:05:46ID: 24229224

Also, from my experience, updating the BIOS does not help.

 

by: isitcomputersPosted on 2009-04-27 at 05:19:35ID: 31572870

Thanks for the input.  Leaning towards motherboard failure and not fixing due to the cost.
Cheers!
Ian

 

by: netboss99Posted on 2009-07-24 at 16:11:49ID: 24939918

I have an HP DV-2000.  For the past few weeks the screen would go blank for anywhere from a few seconds to 15 minutes.  Sometimes shutting down the system would bring back the screen.

It has now failed completely, no screen at all.  HOWEVER, the external port works.  I've hooked it up to an external monitor and it is working perfectly.

The Fn F4 key on this machine is a "round robin" control of the external vs internal monitors.  One press gives you external + internal, next press gives you external only, next press gives you internal only.  Any time the internal monitor is enabled there is a faint light (more like a glow) on the screen.  I am assuming that is the back light.

I've read quite a bit of posts in various places on the net indicating that many of the dv-2000's and dv-6000's have a variant of this problem.  Solutions seem to run from re-flowing the solder on the video board to striking the computer with a sharp axe (the latter seems to eliminate any indecision about buying a new computer).

Anyone have any ideas?  I would like to repair this beast if at all possible.

Thanks,
Gary

 

by: isitcomputersPosted on 2009-07-24 at 18:00:44ID: 24940270

Close!  I almost chose the axe option.  I can't even get an external monitor to work.  I would love to know where to re-solder as I have  basic electronics experience.  

 

by: netboss99Posted on 2009-07-24 at 19:32:48ID: 24940494

Since all the components are surface mount you really need to use the hot air technique.  Surface mount repair stations have hot air guns that blow hot enough to melt solder.  To reflow a surface mount board, first cover any plastic parts (connectors, etc) with duct tape.  The very carefully use the hot air gun to heat the solder to just above the melting point.  You must be very careful because at the same time you are heating to reflow the solder, you are heating the ICs.  Too much heat on them an they are toast.  Additonally if you are not careful you can melt all the connections on an IC at the same time and the IC will basically be "floating" on solder.  In that situation it is very easy to move the IC out of position.

20120131-EE-VQP-002

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