Question about Acer Aspire 5600 Series 5630-6951 Laptop

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Inverter wires To check position of plugsfrom LCD screen to inverter are the top set black&white and the lower set pink&green or does this not matter which way round for lamps, the screen is duel lamp . This laptop is aspire 9500 model No DQ70

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Normally, LCD plugs are non-reversible. just follow he guide groove on the sides of the plug.

Posted on Sep 26, 2008

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Display divided into 3 parts

LCD screen cracked, and Three even strips going across? Doubtful. Haven't seen it but I always have my mind open.

Three strips that are irregularly shaped? Look like glass that has cracked?
'Jagged edges'?

LCD screen is broken.

Three even strips indicates to me, that there may be a problem with the Video Cable. Then the screen Inverter is next in the diagnoses.
My money is on the Video Cable.

ALL power removed, Anti-Static Precautions FOLLOWED, I would check out the graphics chipset first.

1) Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port on the laptop.
Left rear side. This is an example of a VGA Cable, and VGA connector. (VGA port on a laptop ),

(Color of connector does Not matter. It is generally Blue, though)

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 allow it to warm up.
Turn the laptop on.

There are at least 3 display options available;
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 F5 key. (The F5 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 F5 key.

Is the display on the external VGA monitor, the same as the internal monitor of the laptop?

Problem is the graphics chipset.

Display is fine on the external VGA monitor?
Problem is the Video Cable, screen Inverter, or LCD screen.

Video Cable:


Switch Cover removed, Keyboard removed. Shows you where the Video Cable plugs into the motherboard.


Palm Rest Cover you can see the white rectangular connector, for the motherboard side of the Video Cable, at the top left.
It's above the black cable, and near the screw hole.

The Video Cable leads from the motherboard, up through the left Hinge, and into the Display Assembly.
From there it connects to the screen Inverter, and back of the LCD screen.

In the photo, (You can hover your mouse cursor on it to enlarge), the right side connector plugs into the back of the LCD screen.

The black connector to the far left connects to the motherboard.
The small white connector at the top with the Red, Green, Black, etc wires, connects to the screen Inverter.

(The small Black cable, that comes out from the black motherboard connector, is a Ground wire )

Due to the close proximity of the Video Cable to the left Hinge, it can be pulled on from just normal opening, and closing of the laptop over time.

This means the Video Cable connection on the motherboard side could be loose, or the LCD screen side, or both.

The diagnoses is to PHYSICALLY check BOTH connections. A loose connection at the motherboard, or at the back of the LCD screen could be so small in distance, that you will not see it with the human eye.

Could also result in damage to the Video Cable.
View the Video Cable with the Switch Cover removed, and see if there are any obvious signs of damage to the sheath of the cable.

If there is there could be damage to the tiny wires inside the Video Cable. (Stretched/Broken)

Use a multimeter set to OHMs, to check all wires inside the Video Cable for continuity, or have a 'Mom and Pop' computer store check it for a few bucks, or replace the Video Cable.

Video cable connections are tight? Video cable continuity check checks out OK?
Screen Inverter.

The test for a screen Inverter is to use a sensitive multimeter.
Read fairly expensive.

Not having access to a sensitive multimeter that you can use, means just replacing the screen Inverter. Seems like 'part changing', and it is, but you have to work with what you've got.,Satellite,A105,Laptop,Inverters.aspx

Find THE model number for your laptop, and the correct screen Inverter. A screen Inverter, and an LCD screen are a MATCHED unit.

Screen Inverter is checked out to be OK, or replaced, and symptoms are still the same, the problem is the LCD screen.

Remember, the first part of the diagnoses was to see if the divided parts were EVEN going across, or jagged and irregularly shaped.

Jagged in shape, and not even strips going across, means cracks in the LCD screen.

[ Main article for A and B links above; ]

For additional questions please post in a Comment


Oct 22, 2012 | Toshiba Sattelite A105-S2051 Notebook

1 Answer

Inspiron 6000 laptop - no pix on pc lcd but displays on a connected lcd just fine? unit seldom if ever closed.

Check first of all that the lid cut off switch is not sticking, temporarily disconnect this to be sure.
If you are getting an image on an external screen, the problem will most likely lie in two areas:


Take the laptop into a dark room and power it on. If you notice a faint image on the screen that is very dim, it is the fault of the screen backlight (replace the laptop screen)

If there is NO image even a faint one, it is the fault of the inverter (replace inverter).

To access both, you will need to remove the screen bezel, the battery and the switch cover panel. Getting the inverter off is a matter of unplugging it from the VGA cable and removing the pink and white HT wires to the screen ( NO power must be going through the laptop as you do this because the inverter converts the 19 volts DC into 1000 volts to power the screen.

Getting the screen off involves the above than unscrewing the cover retaining screws and the hinge supports and carefully undoing the vga ribbon cable

Jul 28, 2011 | Dell Inspiron 6000 Notebook

3 Answers

I have a toshiba netbook nb255. The screen flickers and eventually goes black. I thinkthe LCD screen may have a loose connection. Do you know the steps to verify this?

Connect the laptop to an external monitor via the VGA port. Enable the VGA port to output to the external monitor. Check the monitors image - if it's the same as the laptops, then it's not the LCD screen. If if the image is good, then it's the screen.

Jan 30, 2011 | Computers & Internet

1 Answer

I bought an Acer Aspire One, model number KAV10, in June of 2009. The screen malfunctions regularly, displaying black as a neon green, white as pink, and yellow as tan. When I adjust the lid angle, the...

does it run on Intel or AMD CPU ? if its AMD, its a heat issue - i can still help you

what is S/N of the computer ?

do you have the CD recovery set , restore to factory default ?

have you contacted Acer to ask them what it could be ?

is your computer linked for power via the AC adapter ?

it may be the LCD inverter that causes thi issue, located inside the computer that connects your LCD to the mainboard

if this helps , please repsond with positive feedback

Oct 16, 2010 | Acer Aspire One PC Notebook

1 Answer

Laptop monitor screen is rolling rapidly, constant scrolling no horizonal control

Sounds like you need a new inverter. Don't know what kind of laptop you have, but you can typically find the replacement on ebay. The inverter for your LCD is usually located just below the LCD. You will have to remove the screws holding the lid together around the LCD. The inverter is usually a long,skinny circuit board with at least one set of pink & white wires connected to it. Not all inverters are the same so make sure that you get the proper part to replace it with.

Mar 28, 2010 | Computers & Internet

1 Answer

I think there is a loose wire from the laptop hinges to the screen backlight when i open the laptop it only lights at a certain position and have to move the screen back and forth to get the light on

dodgy conection to the screen inverter take off the screen surround 4 poss 6 screws located in each corner of screen and poss 1 behind each hinge in the middle at bottom of screen make sure the pink and white wires are connected properly if not press them in if they are the problem is 1 of 2 things either the inverter is faulty or the pink and white wires are either snapped or not connected to the back of screen or motherboard correctly

Oct 09, 2009 | Computers & Internet

1 Answer

Toshiba Satellite L35 screen color turned to pink.

If you have a LCD-screen, not an old-style CRT-screen, it is the data-cable, and its connections, that are not transmitting one of the 3 "primary" colours, e.g., mix red & blue & green to get white,
but mix only two of those colours, and you could get pink,
because the mixing is an "additive" process.

If you mix NONE of the 3 primary colours, you should get BLACK.
If you see GREEN, you're seeing ONE of the primary colours.

Sep 19, 2009 | Toshiba Satellite L35-S2366 Notebook

2 Answers

Older dell latitude 600 lcd screen is on but is pink where it should be white. It is also fuzzy and hard to read letters in the pink

Reseat the LCD cable, see if the connection works any better. Next try an external monitor. If colors are good on external, replace motherboard

Sep 08, 2009 | Dell Latitude D600 Notebook

1 Answer

Laptop screen constantly flickers and whites out

Your Bulb is DUE, you need to change it, Don't do it your self contains mercury. Your LCD is good IF you do not have bad PIXELS. This white and pink lines shows as pixel problem but it migth also short on LCD, if you placed something heavy on Laptop. You may remove and sent the LCD for repair or all laptop to tech.
You may also need to check inverter. I give service around the Country but it is up to you. My company name is JMC TECHS INC. Registered in Miami Florida. (Check jmctechinc@gmail if you like to contact me.

Aug 15, 2009 | Toshiba Satellite Pro M300-S1002X Notebook

1 Answer


connect two pink together and the green with the white

Jun 28, 2008 | Computers & Internet

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