Question about HP Pavilion ze2000 Notebook

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My screen seems to have developed an intermittent connection problem. When the back side of the screen (cover of laptop) is mildly struck (tapped) the screen get disconnected or connected. How do I solve the problem?

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It sounds to me that you will have to get the screen replaced at some point. i thing this is the only fix for this

Posted on Jul 20, 2010

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This device keeps losing it's screen display and thus turns itself off randomly. It appears to have a loose connection as tapping the device will encourage it turn back on. Is it broken?


Broken to the extent that you have an intermittent situation. U need to open her up and with a pencil eraser tap around and try to locate the part or area responsible for the issue.

Nov 23, 2015 | Computers & Internet

1 Answer

My hp dv5000 screen is blank


Problem can be;

A) Graphics chipset
B) Video Cable
C) screen Inverter
D) LCD screen

Let's diagnose, and find out.

A) Graphics chipset:

To start off with, the Pavilion dv5000 series of Notebook PC's; is NOT known to have a problem with the graphics chipset.
The Pavilion dv2000 series, Pavilion dv6000 series, and Pavilion dv9000 series; does.

1) Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port; on the laptop.
The VGA port is on the Left side of the laptop, and located towards the rear.

This is a general example of a VGA connector (port), and VGA Cable,

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

Scroll down a little for VGA Cable example.

You can use a CRT type of monitor (Looks like a small TV), or a flat LCD screen monitor if it has a VGA cable.

Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on.
By factory default settings, the display should show on the external VGA monitor.
IF not:

There are at least 3 display options available;
1) Internal monitor of laptop ONLY
2) Internal monitor of laptop AND external VGA monitor
3) External VGA monitor ONLY

Press, and hold down on the Fn key, and at the SAME time tap once on the F4 key.
The F4 key is the Display Toggle-Over key.

Still no? Hold the Fn key down again, and tap once more on the F4 key.

No display on external VGA monitor, suggests a problem with the graphics chipset.
(Most of the time it is a problem with the Mounting, of graphics chipset TO motherboard. If this proves to be your problem, state in a Comment )

Display on external VGA monitor means the problem is the Video Cable, or inside the Display Assembly.
(screen Inverter or LCD screen)

B) Video Cable:

The Video Cable plugs into the motherboard, in an area under the Switch Cover.

(Left side.
Switch Cover is the plastic cover above the Keyboard, and below the LCD screen. Has the Power On Button, LED indicator lights, etc in it)

It then loops by the left Hinge, and goes up into the Display Assembly.
There is a small separate wire that comes from the main Video Cable, and connects to one side of the screen Inverter.
The main part of the Video Cable goes on, to connect to the back of the LCD screen.

Example of Video Cable,

http://www.batterycentury.com/hp-430531-001-cable-p-215726.html

Click on image to enlarge.
The wide connector you see at the top/left, connects to the back of the LCD screen.

The wide connector at the bottom/right, connects to the motherboard.
The single cable (Wire) coming off at the bottom, connects to one side of the screen Inverter.

Just due to normal repeated opening, and closing of the laptop; the Video Cable may become pinched.
This leads to it being pulled on, and may also lead to damage of the Video Cable.
(Stretched/Broken wires)

Procedure is to Physically check the connections of the Video Cable. Visual inspection alone will NOT do. You need to physically see if you can plug the connection in tighter.

1) ALL power removed. Remove the AC adapter (Charger), and Battery.
2) Remove the Switch Cover.

[Switch Cover is just that. A Cover. I will give a link to a free Service Manual from HP Support, towards the bottom of this solution ]

Try to plug the Video Cable connection at motherboard, in tighter.
Once done reinstall the Battery, and attach AC adapter. Plug AC adapter into power.
Turn the laptop on.

Still no? Turn laptop off. (Hold down on Power On button)
Remove ALL power again.

This time check the Video Cable connections at screen Inverter, and back of LCD screen.

The plastic frame in front of the LCD screen is the Display Bezel.
Example,

http://www.ebay.com/itm/447997-001-HP-Pavilion-LCD-Display-Bezel-DV9000-Series-w-Webcam-GENUINE-/170992584210?pt=US_Laptop_Screens_LCD_Panels&hash=item27cff3c612

Service Manual indicates to remove Display Assembly from laptop, in order to remove Display Bezel.
IMHO this = NO.
I think you can remove the Display Bezel, without having to remove the entire Display Assembly.

This video details removing the Display Assembly.
Shows replacing the LCD screen.

http://www.youtube.com/watch?v=NNyvf4KqeIY

What my concern is with removing the Display Bezel, is the integral Hinge Covers that are a part of it.

I believe the Display Assembly can be tilted far enough back, that the Display Bezel can be removed, and carefully ease the Hinge Covers out/off at the same time.

Why not just remove the Display Assembly?
A whole lot less stuff to reconnect, after you have checked the LCD screen connection of the Video Cable, and screen Inverter connection.

After disconnecting the LCD screen from the Hinge Brackets, you just tilt the LCD screen forward, and check the Video Cable connection.
Then slightly tilt the Display Cover back, so the LCD screen can rest against it, and reinstall power.

Connections are plugged in tighter, and this proves to Not be the problem, go on.
(Don't forget to remove ALL power again)

The Screw Covers are made of synthetic rubber, or plastic.
They are held in place by a type of rubber cement.
I like to use a computer pick, (Much safer than a blade!), and lift up at the base of the Screw Cover.

I also like to GENTLY stick them to the Display Bezel for safekeeping. (They like to stick to the tool, your fingers, and it seems passing cars. "Oops, dropped one. Where'd it go? Hmmmm)

If you are careful with them you can reuse them. (Doesn't stick anymore? Apply a TINY dab of rubber cement to them, with a toothpick)

Screws removed, I suggest cut a piece of thick construction paper, that just fits the inside edges of the Display Bezel.
Helps prevent scratching the LCD screen, from your fingernails, when you go to flex the Display Bezel, and remove it

The LCD screen is an Assembly of layers. They are held in the factory aligned position, by the metal Screen Frame which surrounds them.

There are screws that hold the Hinge Brackets TO the Screen Frame, and there are screws which when removed, will take the Screen Frame apart.

ONLY remove the necessary screws which hold the Hinge Brackets, TO the Screen Frame!

More in a Comment.
Regards,
joecoolvette

Feb 24, 2013 | HP Pavilion dv5000t Notebook

1 Answer

I dropped my laptop, now when i switch it on, the screen is striped to the point where nothing is legible. What can i do to fix this? Is it worth it?


Posted ahead of myself. There is a flow, or method; that is used, and should be followed,

1) Laptop OFF, monitor OFF; connect a VGA monitor to the VGA port, on the Left/middle side of the laptop. {White}
(General example of a VGA Cable, and VGA connector, {Port},

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

Scroll down a little for VGA Cable example)

You can use a CRT type of monitor, (Looks like a small TV), or a flat screen monitor if it has a VGA cable.

2) Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on.
No display on external VGA monitor?

There are at least 3 display options available;
A) Internal display of laptop ONLY
B) Internal display of laptop AND external VGA monitor
C) External VGA monitor ONLY

Press, and hold down on the Fn key, and at the same time tap once on the F7 key. (The F7 key is the Display Toggle-Over key)
Still no display on external VGA monitor?
Hold the Fn key down again, and tap once more on the F7 key.

I think the display on the external VGA monitor, will be fine. Could I be wrong? Yes. If the display still has lines going through it; the graphics chipset's mounting to the motherboard, is the problem.

Most want to just replace the motherboard.
Now you're talking about bucks. $200 + for just the motherboard.

There are methods to reflow the graphics chipset's mounting, and re-seat the graphics chipset to motherboard. One professional, and a Bunch of amateur methods.
If you find this to be the problem, post back in a Comment, and we'll deal with it.

Good display on external VGA monitor, means the graphics chipset mounting is not the problem; the problem is the Video Cable, or inside the Display Assembly. (Screen Inverter/LCD screen)

The Video Cable plugs into the motherboard, under the Keyboard; in an area close to the Alt key on the left side of the Space Bar.
It then leads straight up towards the LCD screen, curves towards the left Hinge, and through the left Hinge.

From there the Video Cable leads up into the Display Assembly. Connects to the back of the LCD screen, and a small cable comes off the Video Cable to the Screen Inverter.

Laptop off, ALL power removed. (Remove the AC adapter {Charger}, and Battery)
Suggest lay a soft static free cloth on the table you're working on; and laptop turned Bottom side up, Battery Compartment facing away from you; down on the table.

You need to remove the Switch Cover, (Keyboard securing strip); above the Keyboard, and Keyboard laid over; in order to access the motherboard connector for the Video Cable.

http://www.insidemylaptop.com/take-apart-sony-vaio-vgn-fz220-repair-power-jack/

Go to Step 3. Remove the DVD drive.
Go to Step 4.
ONLY remove the screws circled in Green. They are for the Switch Cover.

Follow Steps 5 through 7. Remove the Switch Cover.
(Release those 3 Latches in Step 5, and 2 in Step 6)

Note* You want to use Finesse when removing the cover. This is not detailed here.
A stiff guitar pick, or a Spudger tool, are infinitely better than using a metal tool.

In Step 7 the tool should be gently inserted, on the Right side of the Switch Cover, at the parting line in-between the Switch Cover, and Bottom Cover. (Base Enclosure)

Once this side starts to lift up a little, use a small tool to gently pick up on the right Hinge cover. The Hinge cover is part of the Switch Cover.
Keep working along the bottom edge, and top edge of the Switch Cover, with your fingers, and pop it off.

(See the speakers in Step 8? NOT a good idea to use a metal tool, but also do Not insert the tool you are using; too far in )

Remove the two Philips head screws securing the Keyboard, at top.
Raise the Keyboard up on the screw side about 1 inch; slide the Keyboard towards the LCD screen a little.
You are trying to slide the plastic tabs at bottom of Keyboard, out of the Palm Rest Cover. (Top Cover)

Then lift the Keyboard up the screw side, roll over (Top), and lay Keyboard down on the Palm Rest Cover.
You do not need to remove it. Just access the Video Cable plug/motherboard connector.

Try to physically plug the motherboard side of the Video Cable, in tighter.
Photo in Step 10 shows gray Video Cable, and it's Black plug connector.

A) How to remove the Display Bezel, and lay LCD screen over a little, to check LCD screen side connection for Video Cable,

http://www.insidemylaptop.com/remove-lcd-screen-inverter-board-sony-vaio-vgn-sz645-display/

B) More information shown in a disassembly video,

http://www.youtube.com/watch?v=sujKznS_Mns

Pertinent information is shown;

A) 2:35 to 3:13; Switch Cover and Keyboard (Roll over, lay down on Palm Rest Cover)

B) 3:31 to 3:49; Video Cable connection, motherboard side.
That is what he is disconnecting at 3:49

C) 12:20 to 16:10;
1) Display Bezel removed you can see the screen Inverter. It is located at the bottom of the LCD screen.

Example of the screen Inverter (Board),

http://www.ebay.com/itm/Sony-Vaio-VGN-FZ340E-15-4-Laptop-Genuine-1-443-890-11-LCD-Inverter-Board-Tested-/170770015618?pt=LH_DefaultDomain_0&hash=item27c2afa582

Check screen Inverter connection.

2) Showing how to partially remove LCD screen, and check Video Cable connection to LCD screen

I do Not think you need to remove the Display Assembly; in order to remove the Display Bezel.
That is why I posted the Insidemylaptop VAIO VGN-SZ 645 info, above.

You can check the laptop, after you may made sure all Video Cable connections are tight; and not put everything back together, before you do.
This way if the Video Cable connections are Not the problem, you do not have to disassemble all over again.

Visually inspect the sheath of the Video Cable.
If there is any apparent damage to the sheath of the cable, there is also a good chance the tiny wires inside the Video Cable, are damaged.
(Stretched/Broken)

You NEED to verify the Video Cable is Not the problem, before continuing on.
Connections weren't it; no apparent visual damage; remove the Video Cable, and take it to a small computer repair shop.
There the tech can take the cable, and with a multimeter set to OHM's, check each wire in the cable for Continuity.

(Also should have an assistant gently wiggle the cable, and see if there are any intermittent readings on the multimeter. Intermittent reading indicates broken wire/s )

Video Cable checks out; connections, and continuity test; the screen Inverter is next.
Test requires a Sensitive multimeter. Read fairly expensive,

http://www.fonerbooks.com/test.htm

Since ease of access, and low cost is a factor for the screen Inverter, most just decide to replace it.
(Parts changing I know; but if you do not have access to a sensitive multimeter? Take laptop to a shop to test screen Inverter, and you'll wind up paying for a screen Inverter, AND labor)

Screen Inverter checks out, or is replaced, and still same problem?
Replace LCD screen.

For additional questions, or clarification on anything I have stated above; please post in a Comment.

Regards,
joecoolvette

Nov 18, 2012 | Sony VAIO VGN-FZ340E Notebook

1 Answer

Screen is whitish and its blinking with white lines


The Cathode Ray Tube (CRT) can develope a short circuit in the neck area of the tube that will cause this. I suggest that you remove the plastic cover of the monitor, and tap on the neck of the cathode ray tube with the plastic handle side of a screw driver. Be careful while the cover is off of the monitor not to touch any wires or the high voltage wire that connects to the side of the tube. There is very high voltage used to operate the CRT and it will zap you!!

Oct 02, 2010 | HP Pavilion M70 17" CRT Monitor

1 Answer

LAPTOP IS NOT BOOTING SCREEN REMAINS DEAD, ONLY I CAN HEAR IS A VERY MILD 2 BEEPS.


1>Take the battery out of the computer, unplug all external devices, and disconnect the ac adapter i.e there has to be no power source to the computer.
2>Press and hold the power button for 1 min and then put the battery in and connect the ac adapter
3>Start the computer and start tapping on f10 key till you get the BIOS screen, (grey screen with system informatiom, configuration ,... and etc on the top), press f9 and then press f10 to exit
4>If the issue is still not resolved ,start tapping on esc( may be del if not esc) as you restart the computer and select boot from hdd.

Jan 10, 2010 | HP Compaq Presario V2000 Notebook

1 Answer

Screen is pink, looks strange. Problem was intermittant.


It could be as simple as the connector for the ribbon is loose, but it could also be a bad connection on either end where the connectors are mounted. The last possibility I have seen is the ribbon it self can develop a crack inside and needs replacement. Since it responded to a tap these would be the usual suspects. I have worked on laptops and if you decide to try a repair your self - A. download the service guide, B - Take your time with notes and organization of the screw removal to make sure you can retrace your assembly when complete. And lastly some components snap apart and back together it takes more pressure then feels right but if the manual says it snaps on and off take a breath and go fro it. Good Luck.

Jul 20, 2009 | Sony VAIO PCG-K25 Notebook

1 Answer

Horizontal blue line


The intermittent horizontal line is cause by a loose solder connection in the vertical amplifier IC.
The IC is mounted on a heatsink nearby or around the flyback transformer.
The way to fix this failure is to add fresh solder where you see some brown spots on the circuitry that were cause by components getting hot.
Good Luck.

Jun 20, 2008 | Sharp 25R-S100 25" TV

1 Answer

RCA F36450 TV is intermittently snowy


Your tuner assembly has a bad connection inside of itself, or there is a bad connection around the tuner assy. if this is an ATC113 chassis Good Luck

Mar 21, 2007 | RCA F36450 36" TV

1 Answer

No Picture after it's been on a while. Audio OK.


ok you have a vert sweep problem and yes its probably connected to in a way to the "tap and fix" problem! Seems to be n intermittant connection on the vertical out put Ic or maybe even on the rgb convergence ic?? The total loss of sweep though tells me that theres two differant problems! Maybe and intemittant connection on the vert output Ic as well as bad connections on the convergence ic??.

Apr 16, 2006 | Mitsubishi VS-5043 50" Rear Projection...

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