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My Hp Pavilion 2000 has wavy display lines on opening laptop, but if lid jiggled backwards it is corrected. Plugged into spare monitor it's OK, also if started when lid open. Doesn't have the overheat problem. Replace LCD cable ?

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You most likely are dealing with either a loose connection from the data cable to the lcd panel or the socket on the lcd panel itself is having issues. There are instances when the data cable will rub against the hinges and ground itself through the worn areas of the cable. The bezel on the screen needs to be removed and the cable inspected. Look for wear marks around the hinge area and then remove the screws on the side of the panel that attach to the hinge arms, this will allow access to the back of the panel to inspect the socket and cable connection.

Posted on Jul 09, 2010

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1 Answer

My HP laptop monitor has a horizontal line


  1. Connect an external monitor, check if display is OK.
  2. If Display is OK, no horizontal lines then your LCD need to replace.

Aug 20, 2010 | HP Pavilion Notebook

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Hp pavilion dv9000 blackscreen and no chimes but works with spare monitor


Change settings of video card. Sounds like your spare monitor drivers are correct but other monitor are not. Other possible that it recognizes the spare monitor as the default and disables the on board monitor. Try restarting without the spare attached. It will have no choice but to change on board monitor to default

Apr 09, 2010 | HP Pavilion dv6000z Notebook

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Where do we find the display lid switch for a HP Pavilion dv9715nr ? we replaced a damaged hinge on this laptop first and now we cannot get a display.


Let me guess. Damaged Left hinge?

HP had a recall for this problem, but the recall has lapsed as of May 31, 2009.

http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=us&docname=c01611512

The Pavilion dv9000 series, also has a problem with the graphics chip overheating, and burning up.

Yes, I know. Just a regular ray of sunshine.

Graphics chip:
1) Chip is a slang term for I.C.
Integrated Circuit.

2) A graphics chip is a GPU. Graphics Processing Unit.

http://en.wikipedia.org/wiki/GPU

The HP Pavilion dv9000 series of Notebook PC's use Integrated Graphics, as commonly do a very large percentage of notebook PC's.
The GPU is mounted, { Soldered }, directly to the motherboard.

{Another term for Integrated Graphics is OnBoard Graphics.
On the motherBoard}

The GPU is an Nvidia GeForce 8600M GS, that uses the PCI Express technology.

The cooling system of this laptop (Notebook) has a poor cooling design for the GPU.

This causes the GPU to overheat, and burn up.
There is no just replacing the GPU. The fix is to replace the entire motherboard.

I would like to suggest a simple test to see if the GPU is bad first., before going on to replacing the Lid Switch Module.

Hopefully it is just the Lid Switch Module, or perhaps another simple problem I will detail. My thoughts at present, are that it is another small problem.

The test requires plugging in a VGA monitor to the back of the laptop, and seeing if the graphics are good.
(CRT monitor. Looks like a small television set)
Do you have access to a VGA monitor?

[ Bypassing the Lid Switch Module requires removing these components to access it;
1) Battery
2) Harddrive
3) Optical Drive
4) Switch Cover
5) Keyboard
6) Speaker Assembly
7) Display Assembly
8) Top Cover
9) Top Cover Trim ]

On the Left side of the laptop is a VGA port, to connect the VGA monitor to.
(Example of a VGA port:

http://en.wikipedia.org/wiki/VGA_connector

Coming from the back of the laptop on the Left side, it is the second port.

VGA monitor plugged into laptop, power on.
Hold the fn key down, tap the F4 key.
Give the VGA monitor time to, 'Come to life'.

VGA monitor comes on?

GPU is good, time to go on with the diagnoses.

The Display Cable also routes through the Left Hinge.
This cable has the graphics signal cable, and the power cable for the LCD Display.

(The Microphone Cable also routes through the Left Hinge)

This cable is very small, and could have easily been pinched, which could cause breakage of the tiny copper wires, inside the insulation sheath of the cable.

If it is pinched, this MAY be visible by observing the plastic insulation of that cable. The cable does get slightly squished with normal usage, though.

With the Left Hinge being loose, and is hard to open anyway, the cable could have become stretched.

This would cause breakage of the tiny copper wires inside, and the outside damage to the insulation of the wire, may not be so readily apparent.

It could also be that the connector that plugs into the motherboard, has simply been pulled loose, or is not tightly plugged in, and is not making a good contact.

I will include the link to the Service Manual from HP Support, in an additional comment.

I do suggest you buy, and wear an inexpensive ESD wrist s-trap, and connect the alligator clip to a good ground source.
(Average cost is around $6)

Continuity test indicates the Display Cable is okay?

( The Display Cable disconnects from the motherboard, and from the Inverter, that is located in the Display Assembly.

The Inverter is what converts power for the LCD display screen, and also the Backlight Lamp.
The Inverter is a small circuit board, located behind the Display Bezel of the Display Assembly.

Cable disconnected from the motherboard, and from the Inverter, a continuity test of the Display Cable is done with a multimeter.

The multimeter is set to the 1K, or 10K scale.
An economical, but decent enough multimeter for this type of testing, can be purchased for around $12 to $15, from a local auto parts store )

Okay, now it's time to replace the Lid Switch Module.

I will give the link to HP Support, and the Service Manual for the Pavilion dv9500, dv9600, and dv9700 series, in an additional comment so you can disassemble the laptop to access the above.

Mar 01, 2010 | Computers & Internet

2 Answers

Screen dim HP pavilion dv1000


The lid actuator switch may not be working correctly. It's a small switch above the keyboard and led's on either the right or left side. Try pressing it 2 or 3 times to see if the display starts working correctly again. If so, it will need to be replaced.

If that doesn't work, you can also turn it on with the ac adapter plugged in. After it boots, press the power button and hold it in until it shuts off and then turn it on again and see if the display has returned to normal.

If neither of these options work, your laptop may need to have the backlight replaced.

Aug 13, 2009 | HP Pavilion dv1000 Notebook

1 Answer

Hp pavilion motherboard problem


Try to open the display and put out and in again the diplay cable.Maybe its a faulty contact of the display cable.It has happend to me.

Apr 13, 2009 | HP Pavilion dv9000z Notebook

1 Answer

Lcd monitor


This is most likely due to the fact of the usage.

Opening and closing the lid damages the connectors as the run through the hinges.

i sugguest giving HP a ring as the do a out of warrenty service for free, including postage

thanks

Feb 16, 2009 | HP Pavilion ZV5000, ZV6000, ZX5000 Series...

1 Answer

Hp pavilion ze5500 display monitor still doesn't work


IT could be a motherboard problem with the function key that controls the switching of the video infomation between the LCD screen and the external video connector.
It could be the function key circuitry on the motherboard that controls the back lighting levels on the LCD.

Jan 31, 2009 | HP Pavilion dv6000z Notebook

1 Answer

Notebook monitor not working


Turn out the room lights and see if have a correct, but real dim, display. If you do, then you have a bad inverter or back light. If you don't, then you have a loose LCD cable connector, bad LCD cable or bad CD.
Ron

Dec 16, 2008 | HP Pavilion dv9000z Notebook

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