Question about Sony VAIO SZ VGN-SZ340P5 PC Notebook

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LCD damaged The LCD display got damaged when it was dropped. I'm trying to use it connected to my flat screen monitor but message on monitor says no signal.

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You have to press Function and F5 and make sure that it uses the external video card and its wired etc

Posted on Aug 11, 2008

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Dropped my laptop now 1 half of my screen is white and the other half is fine


Hardware damage

1) Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port on the netbook.
The VGA port is on the Left Rear side.

This is an example of a VGA Cable, and VGA connector,

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

Scroll down a little for the VGA Cable example.
NOTE* Color does Not matter. Usually it is Blue. Can be Black or White in color.

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.

2) Turn the monitor on. If a CRT type of monitor allow it to warm up.
Turn the laptop on.
By factory default the display should show on the external monitor.

However there are at LEAST 3 display options available;

A) Internal monitor of laptop ONLY
B) Internal monitor of laptop AND external VGA monitor
C) External VGA monitor ONLY

Press, and hold down on the Fn key, (Bottom left corner of Keyboard), and at the SAME time tap once on the F4 key.
(The F4 key is the Display Toggle-Over key)

No display on external VGA monitor?
Hold the Fn key down again, and tap once more on the F4 key.

Display good on the external monitor? Fine. Your graphics chipset is good. Problem lays within the Display Assembly, (LCD screen, Display Cover, etc), or the Video Cable.

Also posted in case you do not repair the netbook, or repair is set for a later date. This way you can at least use the netbook at home.

Remove ALL power. Remove the AC adapter (Charger), and Battery.

Video Cable:
The video cable attaches to the motherboard, in the upper left area near the left Hinge.
It then leads under the left Hinge, and up into the Display Assembly.

(LCD screen/ Display Cover, Display Bezel, etc. is the Display Assembly)

From there it connects to the back of the LCD screen.
(The Mini 110-3135dx has LED backlighting, and does not use a screen Inverter )

Just due to normal opening, and closing of the laptop, the Display Panel Cable, (HP for Video Cable), can be pulled on.

This means the connection of the Display Panel Cable, at the motherboard side could have been pulled loose, or at the LCD screen side.

It can also damage the tiny wires inside the Display Panel Cable.

From your description, it sounds like the Display Assembly was open, when it landed.
Display Panel Cable connections should be PHYSICALLY, plugged in to ensure the connections are tight.

A visual examination will NOT do.
Connection on the motherboard side AND -> LCD screen side.

If there is visual signs of damage to the Display Panel cable's sheath, also suspect damage to the tiny wires inside the Display Panel Cable. (Stretched/Broken)

Check the connections first. You can leave the laptop partially disassembled, and check, before putting it back together.

If physically checking, by trying to plug the two connections of the cable in, does no good, you have to suspect if the Display Panel Cable may be damaged.

A continuity check with a multimeter set to OHMs, and checking each wire in the cable, is the next step of the diagnosis.
You can take the cable down to the nearest 'Mom and Pop' computer store, and have the tech check it for a few dollars.

Or due to the price of a replacement you may just wish to replace, and see if that was the problem.

The HP part number is HP 607755-001.

HOWEVER, this is supposed to be for a kit that contains 3 cables.
1) LCD Cable (Display Panel Cable)
2) Webcam Cable
3) Power Cable.

[ Power Cable:
The DC Power Jack is the jack on the laptop, that you plug the AC adapter ( Charger ), into.
The DC Power Jack is NOT soldered to the motherboard, with this model.

Instead it is soldered to a cable of wires, and the wires end in a plug.
The plug is unplugged from the motherboard, and the entire assembly is replaced as a unit. (It's a Power Jack Harness, really)

DC Power Jacks get broken. This one will be easy to replace ]

http://www.aliexpress.com/store/product/LCD-video-Cable-for-HP-Mini-110-110-1000-110-1100-Laptop-LCD-Cable-6017B0207601-6017B0232102/908032_556440323.html

Check the part number on your Display Panel Cable, and see if it matches up to the one you are going to buy, is the best method however.

Display Panel Cable checks out OK, or you have replaced it, and it doesn't solve the problem, the problem is the LCD screen.

Again, in my searching of the LCD screen replacements, I found they all use LED lighting for your model. (Mini 110-3135dx)
LED backlighting as a rule now, does Not use a screen Inverter.

Could I be wrong, and your laptop does indeed have a screen Inverter?
Only you will know once you open the Display Assembly, and check the Display Panel Cable connection at the back of the LCD screen.

If a screen Inverter is used it will be in the Display Assembly.
A screen Inverter could easily have been damaged in a fall, and a bad screen Inverter COULD show the results you stated.
I say -> COULD.

I believe the Display Panel Cable connection may be loose at the motherboard side, and/or LCD screen side, or it may be damaged.
If not I believe the LCD screen is the problem.

To check the Display Panel Cable on the motherboard side, for this model, you have to remove the Top Cover. (HP for Palm Rest Cover)
This means the Static sensitive hardware components for the laptop, will be exposed.

This means you NEED to wear an ESD wrist strap, once the Top Cover is removed.
BEST method however is to just put it on BEFORE starting to disassemble. This way you do not forget, and have a Static shocked laptop, that is only going to be good enough for a DOORSTOP.

One example,

http://www.radioshack.com/product/index.jsp?productId=2103245

The alligator clip needs to be connected to a good ground source.
I connect to an unpainted surface, of the metal frame of an open, empty desktop computer case.

You can also set a large metal serving tray (Unpainted), on the table you're working on, and connect to it.
Or a large metal knickknack. (Unpainted)

Pictorial guide that may help. Allows you to see someone working on an HP Mini,

http://www.insidemylaptop.com/replace-keyboard-in-hp-mini-1033cl-notebook/

Service Manual from HP Support (Free),

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&dlc=en&lc=en&product=4307901&


In the list click on -
HP Mini 110 and Compaq Mini CQ10 - Maintenance and Service Guide

[ Note*
On page 65 it shows the Wireless LAN cables.
Number 6 states,
"Disconnect the display panel cable from the motherboard"
It is actually referring to the Figure on the next page. Page 66.
And Number 1 ]


For additional questions please post in a Comment.

Regards,
joecoolvette

Oct 23, 2012 | HEWLETT-PACKARD HP Mini-Notebook...

1 Answer

Trying to fix laptop screen that is whited out


Alex,
A primer first;

An LCD screen cannot produce light. It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, (Or two of them), or a series of LED's.
(Light Emitting Diode)

The Acer Aspire 5732z-4855 Notebook PC uses a single CCFL, according to all of the websites that sell the LCD screen. One example,

https://www.laptopscreen.com/English/model/Acer/ASPIRE~5732Z-4855/

A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

[Average thickness is 2mm. That is a little larger than 1/16th of an Inch, or about the width of this letter -> H
Average length is almost as long, as the LCD screen is in height.
A general example of a CCFL,

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

View the last 8 photos ]

A screen Inverter is used to convert the power from the laptop, for the LCD screen, and Backlight.
(For a CCFL. Most generally LED backlighting does not use a screen Inverter )

Example of a screen Inverter used on the Acer Aspire 5732z series of Notebook PC's,

http://www.lcd-inverter.co.uk/screen-inverter.php/acer_aspire+5732z_lcd-inverter_6130.htm

Primer over.

Your problem could be the graphics chipset, Video Cable, screen Inverter, or LCD screen.

Diagnose:

1) Graphics Chipset;
Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port, on the laptop.

[ Left rear side has the VGA port. It is White in color. This is a general example of a VGA Cable, and VGA connector, (Port),

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

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

Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on. By factory default the display should show on the external VGA monitor.

If not;
Hold the Fn key down, (Bottom row, second key from left), and at the same time tap once on the F5 key.
(The F5 key is the Display Toggle-Over key)

Still no display on the external VGA monitor?
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

Hold the Fn key down again, and tap once more on the F5 key.
Good graphics (Display) on the external VGA monitor, means you have a good graphics chipset.

Bad graphics on the external VGA monitor, means you are looking at motherboard replacement.

Sitting here in this chair in front of my computer, I'm willing to bet your graphics chipset is OK.

If the graphics chipset is good your problem is the Video Cable, screen Inverter, or LCD screen.

2) Video Cable:
This is high on the list for being the 'culprit' of the problem.
Why?
Because of it's location.

The Video Cable connects to the top of the motherboard, in an area under the Switch Cover, and slightly to the right of the left Hinge.

It then routes UNDER the left Hinge, and up into the Display Assembly. From there it connects to the back of the LCD screen, and to the screen Inverter.

Just from normal opening, and closing of the laptop over time, the Video Cable may become pinched.
This can lead to pulling on the Video Cable, and may cause a loose connection at the motherboard side, or LCD screen side. Shouldn't be a loose connection at the screen Inverter.

This means the Switch Cover must be removed to check the connection, at the motherboard side. The Display Assembly is opened up, and connection at the back of the LCD screen is checked.

Visual inspection will do NO good. You CANNOT see usually if the connections are tight, or not. It is BEST to physically see if you can plug the cable connections in tighter.

Loose connections of the Video Cable are high on the list, for your kind of problem.

Next is damage to the Video Cable. See if there are any obvious signs of damage to the sheath of the Video Cable. Obvious damage to the sheath may mean damage to the tiny wires inside.
(Stretched/Broken)

Even if there are no signs of damage to the Video Cable, and if physically checking to see if the Video Cable's connections are loose, and this doesn't solve the problem; the Video Cable should be removed, and it's wires checked for continuity with a multimeter.

(You can take it to a 'Mom and Pop' computer store, and have it checked for a few bucks )

Video Cable checks out, the next hardware part in the diagnoses is the screen Inverter.
[Acer nomenclature for the Video Cable is LCD Panel Cable]

3) Screen Inverter:
The thin plastic frame in front of the LCD screen is the Display Bezel.

[Acer nomenclature for the Display Bezel is LCD Bezel.
The LCD screen is an LCD Panel.
Display Assembly is an LCD Module ]

The screen Inverter is located behind the LCD Bezel, and mounted towards the bottom of the LCD screen.
Testing requires a sensitive multimeter. Read fairly expensive,

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

If you do not have access to a sensitive multimeter, then the next course would be to replace the screen Inverter.
Due to the low price of a new one, this parts changing solution IMHO is feasible.

Screen Inverter is not the problem, then the problem is the LCD screen.

I believe your problem to be the Video Cable. Loose or damaged. If not then the screen Inverter.

This is a link to a free Service Manual,

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-acer

Drop down to the subheading - Aspire 1200. (1200 in Blue)
Go down to the 9th line (5720G in blue), scroll across, and click on the blue - 5732Z

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the file name (5732Z) it may take up to 30 seconds, before the first page comes up.

This is a direct link. If clicking on it does no good, then copy it, and paste it in your browser search bar. Then press the Enter key,

http://support.acer.com/acerpanam/Manuals/acer/2009/ServiceGuides/SG_Aspire_5732Z_5332_10192009.pdf

1) Removing the Switch Cover - Page 71

2) You MAY be able to split the LCD Module open, (Display Assembly), and be able to physically check the video cable to LCD screen connection.
If so go to Page 95.
If not remove the LCD Module - Page 73

For additional questions please post in a Comment.

Regards,
joecoolvette

Oct 06, 2012 | Acer Aspire 5732Z-4855 Notebook

1 Answer

Screen blank


Post the manufacturer and model number of the laptop. Model number is located on the bottom of the computer. In the meantime I can only give you a generic diagnosis to follow;

1) Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port on the laptop.

This is an example of a VGA Cable, and VGA connector, (Port),

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

(On the laptop near the VGA port it may have RGB, or External VGA, or nothing )

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

2) 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; Hold down on the Fn key, and at the same time tap once on the Display Toggle-Over key.

The Display Toggle-Over key will be one of the F keys at the top of the keyboard. (F1 through F12)
HP laptops for example, usually use the F4 key.

After performing the above, there is no display on the external VGA monitor;

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

Hold the Fn key down again, and tap once more on the Display Toggle-Over key.

NO display shows on the external VGA monitor?
You have a bad graphics chipset, or the mounting of it to the motherboard is bad.

Display shows on external VGA monitor?
You have a problem with the Video Cable, or in the Display Assembly itself.

A) Video Cable:
This cable connects to the motherboard, under the Keyboard area, or just above it.
It then goes along, and up under the left Hinge.

From there it goes up into the Display Assembly, and connects to the back of the LCD screen.
There is also another wire, or two, that comes from the Video Cable, and connects to the screen Inverter

Primer:

An LCD screen does not produce light by itself. It needs an additional light source. A Backlight is the additional light source.

A Backlight can be a CCFL, (Or two of them), or a series of LED lights.
(These two technologies are used in the present )

A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

[ Average size is 2mm Thick, and the length is almost as long as the LCD screen is in height.

2mm is a little larger than 1/16th of an Inch.
More information on CCFL, and general guide to replacing,

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/ ]

A screen Inverter is used to convert the power from the laptop, for the LCD screen, and Backlight.

90 PERCENT OF THE TIME the fault can be attributed to a bad screen Inverter.

Some average examples of a screen Inverter used in a laptop,

http://www.laptopparts101.com/screen-inverter-board/

The thin plastic 'frame' in front of the LCD screen, is a Display Bezel. Has many names, depends on the manufacturer.

The screen Inverter is located behind the Display Bezel, and mounted at the bottom of the LCD screen. (Usually)

Primer over.

Check the video cable connection on the motherboard side, and at the back of the LCD screen.

Just with opening, and closing the laptop, the video cable could have been pinched in the Hinge.
This would lead to the video cable being pulled on, and pulling a connection loose. (Or both connections)

It could also lead to damage of the video cable.
Check the cable's outside sheath for obvious signs of damage.
This may indicate damage to the tiny wires inside.
(Stretched/broken)

It is best to completely remove the video cable, and with a multimeter check the wires inside for continuity. (Set the Function knob to Ohms)

B) Display Assembly:

The Display Assembly consists of the;
1) Display Bezel
2) Display Cover. (Top cover of laptop over LCD screen )
3) LCD screen
4) Hinge brackets, and Hinges
5) screen Inverter
6) Backlighting
7) Web camera (IF installed)
8) Microphone (IF installed in Display Assembly )
9) Screen Frame (Holds the LCD screen assembly together )

If the Video Cable checks out OK, move on to the screen Inverter.
Look to see if the cable (Wires) connections to the screen Inverter are tight.
Physically check, do not assume by just looking.

Is there any obvious signs of damage to the screen Inverter?

To test a screen Inverter requires a sensitive multimeter. Read fairly expensive,

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

Due to the fact;
1) That most do not have a multimeter of this type around,
2) The ease of accessing to replace a screen Inverter,
3) The usually low cost of the screen Inverter,

, the screen Inverter is replaced. Parts changing I know, but you have to use what is available to you.

Replaced screen Inverter, and you still have no display on the laptop's internal monitor?
Replace the LCD screen.

Note*
If a laptop uses CCFL for Backlighting, there is going to be a screen Inverter.
If a laptop uses a series of LED lights for a Backlight, there MAY, or MAY NOT be a screen Inverter.

In this case the LCD screen itself is replaced.

If you post the laptop manufacturer, and Model Number, (In a Comment), I may be able to link you a Service Manual. Also there may be pictorials with disassembly information.

Guide you as if I was sitting next to you.

Regards,
joecoolvette

Apr 28, 2012 | PC Laptops

1 Answer

Screen blank with white dot


Problem with;

1) Video cable:

A) Video cable connection on motherboard side is loose, and/or on back of LCD screen.

B) Video cable is damaged.

2) screen Inverter:

screen Inverter is bad.

3) LCD screen:

LCD screen is bad.

4) Graphics chipset:

Graphics chipset is bad.

Suggest you connect a VGA monitor to the VGA port (Connector) on your laptop.
See if the problem is the graphics chipset, Or video cable, Or display assembly.

You didn't state what manufacturer and Model Number of laptop this is.
All I can do is state generic information.

This is an example of a VGA Cable, and VGA connector,

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

The VGA connector will be on the side, or back of your laptop.
For the VGA monitor you can use a CRT type monitor, (Looks like a small TV), or a flat LCD screen monitor that has a VGA cable.

Laptop OFF, monitor OFF, connect the external VGA monitor to the laptop.
Turn the monitor on. If a CRT type allow it to warm up.

Turn the laptop on.
By default the display should show on the external VGA monitor.
IF not;

There are at least 3 display options.
1) Laptop internal monitor ONLY
2) Laptop internal monitor 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 Display Toggle-Over key.
(For an example HP's usually use the F4 key for a Display Toggle-Over key)

Display shows the same on the external VGA monitor?
You have a bad graphics chipset.

[ Some laptops have been erroneously stated as having a graphics card, when in fact they do not.
The GPU (Graphics Processing Unit) is soldered directly to the motherboard.
This is Integrated Graphics.

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

There is no changeable, replaceable graphics card. Therefore the solution is motherboard replacement ]

IF, the display is good on the external monitor, you have a problem with the Video Cable, and/or in the Display Assembly.

After diagnosing with an external VGA monitor, post back in a Comment.
Also post the manufacturer name, and model number of the laptop.

Regards,
joecoolvette

Apr 22, 2012 | PC Laptops

2 Answers

Display


Hook a spare monitor to the video output usually on the back, if picture okay! the inverter board located under the screen is defective, or the backlight behind the display has failed. But if both show the same symptoms it means the video graphics card is faulty, normally built into the motherboard.

Apr 15, 2012 | PC Laptops

1 Answer

No video at power up


See if the problem is the graphics chipset before going any further.

If it isn't then the problem lies with the Video Cable, (Gateway = LCD Cable), or the Display Assembly.

The heading states Gateway LT2104u Netbook PC. This is what I'll be basing the solution on. However the main part of the solution, will apply to all laptops/netbooks.

1) Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port (Connector) on the Left side of the netbook.

[ External VGA display port.
This is an example of a VGA connector, (Port), and a VGA Cable,

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

The external VGA monitor can be a CRT type, (Cathode Ray Tube. Looks like a small TV), or a flat LCD screen monitor that has a VGA cable.

2) Turn the monitor on. If a CRT type allow it to warm up.
Turn the netbook on.

By default the display should be shown on the external monitor.
IF not;

A) Press, and hold down on the Fn key, and at the same time tap once on the F5 key.
(The Fn key is at the Bottom/Left of the Keyboard. The F5 key is at the Top of the Keyboard)

No display still?
There are at least 3 display options;

1) Internal monitor of the laptop ONLY
2) Internal monitor of the laptop AND external VGA monitor
3) External VGA monitor ONLY

You may have to hold down on the Fn key, and tap the F5 key more than once.

IF, NO display shows up on the external monitor, you have a bad graphics chipset.

[ Chip and Chipset are slang terms for I.C.
Integrated Circuit,

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

The GPU is the graphics chipset,

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

The GPU for a Gateway LT2104u Netbook PC is an Intel GMA950 ]

IF, display does show up on the external VGA monitor, you have either problems with the Video Cable, (LCD Cable), or the Display Assembly.

LCD Cable:

1) Connections;
The LCD Cable connects TO the motherboard, and TO the back of the LCD screen, in the Display Assembly.

IF, either connection is loose, you will have display problems.

Check both connections.
This requires partial disassembly of the netbook to access the motherboard side of the LCD Cable.

Also requires partial disassembly of the Display Assembly (Gateway = LCD Module) to access the connection at the back of the LCD screen.

2) Damage;
Observe the LCD Cable on the motherboard side. See if there are any obvious signs of damage to the LCD Cable's sheath.
The most susceptible area to damage is the area under the left Hinge.

However, the LCD Cable should be removed, and a continuity check of the cable should be performed with a multimeter, set to Ohms.

(By checking the connections, you are at a point anyway, that removing the LCD Cable should be no problem)

LCD Cable checks out OK?
LCD Module problem; (Display Assembly)

The LCD Module consists of the;
1) LCD Bezel,
2) Camera Module,
3) LCD Module Brackets, (Includes Hinges)
4) Microphone Module,
5) Wireless 3G Antenna,
6) WLAN Antenna cables, (Wires),
7) LCD Screen Assembly,
8) LCD Module Cover.

Primer:
An LCD screen does not produce light. It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, or a series of LED lights.
(CCFL = Cold Cathode Fluorescent Lamp. Similar to Fluorescent lighting used in homes, and businesses)

The Backlight for the Gateway LT21 series of Netbook PC's, is a series of LED lights.

There is no screen Inverter that is replaceable by the consumer.
The repair is to replace the entire LCD Module.

http://support.gateway.com/s/notebook/2009/gateway/lt/lt21/LT21sp4.shtml

To conclude:
If the problem isn't the graphics chipset, (Motherboard replacement), and it isn't the LCD Cable, the problem is the LCD Module.

Gateway LT21 series of Notebook PC's, Service Manual, (Free),

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-gateway

Go to where it states Gateway 400. Drop down to the second line, (EC54), and scroll across to LT21 in blue.
Left-click on LT21.

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the file name (LT21) it may take up to 30 seconds, before the first page comes up.

{ You can save this Service Manual to your computer. This way you can burn it off to a CD disk, AND remove it from the computer to save harddrive space, and not have to temporarily download it again }

For additional questions please post in a Comment.

Regards,
joecoolvette

Jan 28, 2012 | Gateway LT2104u Netbook

2 Answers

Screen comes on with loads of colouerd lines


Suggest you diagnose, and see if the problem is in the Display Assembly, Video Cable, or graphics chipset.

1) Laptop OFF, monitor OFF, attach a VGA monitor to the laptop.

Since you didn't post the model number of the laptop, (Is it an MSI laptop also?), I can only post generic information.

This is an example of a VGA connector, and a VGA cable,

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

You can use a VGA monitor that is the CRT style, (Looks like a small TV), or a flat LCD screen monitor that has a VGA cable attached.

Monitor connected to laptop turn the monitor on. If a CRT style allow it to warm up.
Turn the laptop on.

By default the display should show on the external VGA monitor.
If not, press, and hold down on the Fn key, and tap the Display toggle-over key.

[ The Display toggle-over key is one of the Function hotkeys at the top of the Keyboard. It may be F4, or F5 for example. The key will have a monitor symbol on it, and perhaps an arrow pointing to the side ]

If you hold down on the Fn key, and tap the Display toggle-over key once, and nothing happens, hold the Fn key down again, and tap once more on the Display toggle-over key.

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

If the display is still the same on the external VGA monitor, as it is on the laptop's internal monitor, you have a bad graphics chipset.

A) IF, the display is Fine on the external monitor, you have a problem with the Display Assembly, or the Video Cable.

B) IF, the display on the external VGA monitor is the same as the internal monitor of the laptop, you have a bad graphics chipset.

I have not seen any service bulletins stating problems with graphics chipsets, or the mounting of the graphics chipset, for MSI laptops/netbooks.

If the graphics chipset is bad you are looking at a motherboard replacement.

Video Cable:
This flat ribbon cable connects to the motherboard, goes up under the left Hinge, (Probably), and connects to the back of the LCD screen.

From opening, and closing during everyday usage, the video cable may have been pulled on, causing damage to the cable. Or pulled it loose from the motherboard connection, or LCD screen connection.

Dropping the laptop will also pull on the Video Cable, if the laptop was open when dropped.

[ The Video Cable plugs into the motherboard, and plugs into the back of the LCD screen. This is an example using an HP dv4 series of Notebook PC,

http://www.insidemylaptop.com/replace-ccfl-lcd-screen-hp-pavilion-dv4-laptop/

Scroll down to Step 19, to see an average Video Cable, and how it connects to the back of the LCD screen.

[ I posted a solution earlier to a problem similar to this, and the asker found the Video Cable was loose on the back of the LCD screen,

http://www.fixya.com/support/t10155788-compaq_presario_cq62_238dx_felloff

The connector on the other end of the Video cable, that plugs into the motherboard, is similar to the LCD screen connector ]

ALL power is removed from the laptop. AC adapter (Charger) and Battery. Anti-Static Precautions are followed.

Then the laptop is partially disassembled down far enough, to see if there is obvious damage to the video cable on the motherboard side, and/or if the connection of the Video Cable to the motherboard is loose.

Look at the sheath of the video cable, and see if there are obvious signs of damage. Damage to the sheath of the cable, may be an indication that the tiny wires inside the cable, are damaged. (Stretched/Broken)

To test the Video Cable to see if it is good, the Video Cable needs to be completely removed, and a continuity test performed.

{A multimeter is set to Ohm's. Each wire is checked in the Video Cable to see if electricity will flow through it. Continuity.
If not the wire is broken.

An economical multimeter that will suffice for this test, can be purchased for around $5 to $12. Available in a multitude of stores. An auto parts store is but one example. Analog, or digital is fine.

If this is not feasible, and/or the knowledge to use the multimeter is not available, ( I can guide you, however ), perhaps take the Video cable to the nearest computer repair shop, and have them check the continuity }

Video Cable connections prove to be tight on the motherboard side, AND on the LCD screen side, go to the screen Inverter.

Primer:
An LCD screen does not produce light. (Or not enough light)
An additional light source is needed.
A Backlight is the additional light source.

A Backlight can be a CCFL, or a series of LED lights.
Don't know the model number of your MSI (?) Notebook PC, or I could tell you which Backlight technology your laptop uses.

A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

(Average size of a CCFL is 2mm Wide, and 334mm Long. That is approximately a little thicker than 1/16th of an inch Wide, (.078 thousandths), and a little over 13 inches Long)

A screen Inverter is used to convert the power (Electricity) from the laptop, for the Backlight, and LCD screen.

A screen Inverter is a small circuit board located behind the Display Bezel, (Also referred to as Display Mask), and at the bottom of the LCD screen.

90 PERCENT OF THE TIME the fault can be attributed to a bad screen Inverter


My thoughts are that you have either a bad connection for the Video Cable, and/or it is damaged, OR you have a bad screen Inverter.

I have access to Service Manuals for MSI Notebook PC's, but only certain models.
However post the model number, (Located on the Bottom of the laptop, in a white service tag, or sticker), in a Comment.

After you have disassembled enough laptops, Julie, they all seem to follow the same basic disassembly pattern.
We'll see what we can do.

Regards,
joecoolvette

Jan 16, 2012 | MSI PC Laptops

1 Answer

I dropped my dell notebook on the floor. The screen is 80% frozen however when I turn it off and reboot I can tell from the little corner I can see that the computer function but the screen stays stuck....


Try connecting an external monitor to your laptop via the 15 pin VGA connector located on the left side of the laptop.If the laptop display is normal on the external monitor then most likely your LCD (liquid crystal display) panel is damaged and needs to be replaced. The spider web effect is due to cracked display panel.

Sep 12, 2011 | Dell Inspiron 1525 Notebook

2 Answers

2/3 of display is black


Strange could be video card issue or broken screen. try connecting it to TV or another monitor see if the picture is clear than video card is fine and display is damaged

Mar 02, 2011 | HP Mini 1000 Netbook

3 Answers

Moniter problem


the LCD screen is damaged.

hope this helps

Jan 08, 2008 | Toshiba Satellite A105 Notebook

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