Question about Compaq Presario 1200XL104 Notebook

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Lcd i want to change my lcd screen how can i feed

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Posted on Jul 25, 2009

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1 Answer

My back light in not working. how do i change the LCD backlight on a gateway MT6728


It is probably the inverter that has failed. That is located either directly beneath the LCD screen or at the mother board end of the LCD feed cable.

Feb 18, 2014 | Gateway M-1634U (LX.W090X.001) PC Notebook

Tip

HOW TO REPLACE ACER LAPTOP LCD SCREENS


READ CAREFULLY FIRST BEFORE STARTING

Removing the screens bezels will void warantee
In Saying that ,

Heres how I would do a screen replacement,

You will need a small philips screwdriver for this ...

Remove the power and battery
To Remove the bezel from the front of the screen
There should be 4 or 6 screws holding the cover on,
Screws may be covered by rubber buttons,
then remove the screws holding the LCD to the hinges' frame.
Tilt forward your LCD and lie screen on your keyboard

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
LCD panels have a row of IC chips at the top that produce the images on your LCD so do not touch or flex this area because it may produce lines on the LCD or kill it completely.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

botom of screen is inverter power and plug to screen
top rear of LCD is video feed from motherboard,
(above that are those important IC Chips-
DONT TOUCH THE CHIPS)
LCD wiil have tape fastening plug to the socket,
Remove tape and this will expose the plug.
Un plug from screens socket,
Reseat plug back into socket,
Put Tape back on to stop any unwanted movements,

Next step is to power up the LCD to test.

Rest LCD in back of lid and lie lid on table with base at 90 degrees for access to plug in AC power.
do not use battery for this test.
Turn ON power,
If it starts up, then you have a running machine again,
Shut down , unplug power and reassemble,

If LCD does not start then you need to replace the LCD panel and thats about all you can do,

Hope this helps.......

Cheers MisterdJ

on Apr 12, 2010 | PC Laptops

2 Answers

Want to connect Laptop to LG LCD TV. Can not get picture on TV Screen only sound. What 'F' key needs to be used to activate VGA output ?


The "F" key you need is different depending on the laptop you have. Some have a plain box with a vertical line either side of it, others have a box with "LCD" in it then a / and another, plain, box with an arrow coming out of it. Any other designs for the F key logo will be varients of these two.
Remember to hold the function key when pressing the screen key, the monitor on the laptop will usually go blank (depending on the model) then the tv will start a few seconds later.
You may need to change desktop resolution to make the picture the correct size on your TV.
Good luck!

Jan 19, 2011 | LG E500 Express Dual Series Notebook PC

1 Answer

Advent 5431 screen all mashed up ie cant workout what anythink says on the screen at all,when i plug in external monitor screen is ok..changed screen with a working laptop screen and changed inverter still...


Most probably you have a defective LCD screen cable. This is the only possibility left since you have changed the LCD screen & inverter, & an external monitor works fine. Check your LCD screen cable & replace it if necessary.

Oct 22, 2010 | Acer Aspire 4720 Notebook

2 Answers

My Compaq CQ60 displays on ext. VGA but not on board.


Switch the Wireharness from the old LCD to the new one, If you look carefully they do come off.

Apr 12, 2010 | PC Laptops

1 Answer

I have Acer Laptop suddenly now the screen remains blank even after switching on the laptop. Actually as I was surfing the net suddenly the screen display color changed and later I thought there is...


if you can see the start up screen in full color when it starts then the last update could have caused it,
But its more likely that the plug inside the back of the LCD has come loose and needs to be replugged back in,

READ CAREFULLY FIRST BEFORE STARTING

Removing the screens bezels will void warantee
In Saying that ,

Heres how I would do a screen replacement,

You will need a small philips screwdriver for this ...

Remove the power and battery
To Remove the bezel from the front of the screen
There should be 4 or 6 screws holding the cover on,
Screws may be covered by rubber buttons,
then remove the screws holding the LCD to the hinges' frame.
Tilt forward your LCD and lie screen on your keyboard

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
LCD panels have a row of IC chips at the top that produce the images on your LCD so do not touch or flex this area because it may produce lines on the LCD or kill it completely.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

botom of screen is inverter power and plug to screen
top rear of LCD is video feed from motherboard,
(above that are those important IC Chips-
DONT TOUCH THE CHIPS)
LCD wiil have tape fastening plug to the socket,
Remove tape and this will expose the plug.
Un plug from screens socket,
Reseat plug back into socket,
Put Tape back on to stop any unwanted movements,

Next step is to power up the LCD to test.

Rest LCD in back of lid and lie lid on table with base at 90 degrees for access to plug in AC power.
do not use battery for this test.
Turn ON power,
If it starts up, then you have a running machine again,
Shut down , unplug power and reassemble,

If LCD does not start then you need to replace the LCD panel and thats about all you can do,

Hope this helps.......

Cheers Misterdj



Apr 12, 2010 | Acer Aspire 4520-5582 Notebook

1 Answer

My laptop is only 4 months old and my screen is very dark. I can hardly read the screen.


The connector that goes from the mother board or the invertor may be bad. Or the inverter board itself.
The wire is very delicate and goes from the motherboard and the invertor wire is also delicate. Repeated opens and closing of the screen can make the conections at the plug get weak and break.
Try connecting a LCD monitor alongside the laptop. Select the LCD and see if you get a video feed. If so then the wire connector and / or inverter is probably the sourse of your problems.

Sep 13, 2009 | Toshiba PC Laptops

1 Answer

IBM R51 Backlight Problem..


check the model/part on the inverter. if you know you have a good one on the second laptop, remove it and try it in the non-working one. if the parts match which most of the time they do, then you are ok, it should only be two wires on the inverter, one coming from mobo, one coming from lcd. if that doesnt work you have blown a capacitor/resistor somewhere down the line. in that case it will have to be serviced and will run you anywhere from 80-130 if you find a place local or on ebay.

Good Luck!
Ruben

Jul 23, 2009 | IBM ThinkPad R51 Notebook

1 Answer

A 1-1/4" wide band on screen from top to bottom


your laptop trouble mostly cause disconnection between motherboard LCD signal output socket to the lcd panel driver board(at back of panel there is a board at top of back panel. there are two posible repair:
1) check disconnection parts like LCD signal cable between motherboard and LCD panel and all plugs sockets around there. it could be fixed.
2) LVDS decode and driver board damage or matrix rubber cable disconnected they all tough to repair, so that is only easy way to change a new LCD panel finally
it this helpful please feed back thanks

Feb 12, 2009 | HP Compaq Presario F730US Notebook

1 Answer

Screen turns off


you have a bad inverter board, this feeds hi-voltage to the lamps that create the display. common for LCD screens
or the back light lamp.


hope this helps
thanks for your rating

Jan 07, 2008 | Toshiba Satellite A105 Notebook

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