Question about IBM ThinkPad R32 2658 Notebook

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Screen problems I replaced my lcd screen because i could not see the screen on the other one. This one is the same as the other one. I also cannot find a place to hook up the aux and main antenna wires. I would appreciate any insight you can give me.

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  • Dapid Candra
    Dapid Candra May 11, 2010

    Aux? Antenna wires? Does thinkpad have those ports? Are you sure you're talking about the ThinkPad?

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Why is my replaced lcd screen not lighting up?


1) Wrong LCD screen

2) Video Cable (LCD Cable) is not connected tightly.
Motherboard side, or LCD screen side; or both.

3) IF, a screen Inverter is used, the small cable from the Video Cable, that connects to the screen Inverter; is not connected, or has a loose connection to it. (screen Inverter)

4) An LCD screen, and a screen Inverter are a Matched unit.
If it's the wrong LCD screen......................?

5) IF, a screen Inverter is used; the diagnosis was wrong, and the LCD screen was replaced.
90 PERCENT of the time, the fault is a bad screen Inverter.

A) Laptop's LCD screen uses a CCFL, (Or more than one), for a Backlight; the laptop uses a screen Inverter.

Diagnostic flowchart leads from Graphics Chipset, to Video Cable, to screen Inverter, THEN, LCD screen.
Expensive LCD screen was replaced, instead of the actual part that needed replacing;
Video Cable: $9 to $22
Screen Inverter: $9 to $22

LCD screen: $60 to $245

B) Laptop's LCD screen uses LED backlighting, and does NOT use a screen Inverter:

Diagnostic flowchart is;
A) Video Cable;
A Video Cable should have it's connections PHYSICALLY checked.
You have to try to push the connectors in tighter.
Visual inspection alone will NOT do.

Making sure the Video Cable connections are tight, and this does not fix the problem, then the Video Cable needs to be removed; and every wire in the Video Cable checked for Continuity with a multimeter set to OHM's. (1K)

Not feasible, then take the Video Cable down to the nearest small computer shop; and have the resident tech check it for Continuity.
Should only be a few bucks.

Or just replace the Video Cable.
(Parts changing I know, but...........?)

Primer:
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 more than one), or a series of LED's.
(Light Emitting Diode)

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

Average thickness is 2mm. That is a little large than 1/16th of an Inch.
Average thickness is almost as long, as the LCD screen is in height.
View the last 8 photos,

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

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

As previously stated, Backlighting that uses CCFL, uses a screen Inverter.
LED backlighting MAY, or MAY NOT use a screen Inverter.
When the LED backlight technology first came out, it seems some did use a screen Inverter.
It also seems as the technology advanced, LED backlighting does Not use a screen Inverter.

Regards,
joecoolvette

May 14, 2013 | Sony PC Laptops

1 Answer

No backlight


A) Replacement LCD screen backlight could be bad.
Happens. Sometimes you get a bad part. (Bad LCD screen assembly, in this case)

LCD screen may not be the correct one.

http://support.gateway.com/s/Mobile/2008/GodzillaFX/2528410R/2528410Rsp2.shtml

http://support.gateway.com/s/Mobile/2008/Godzilla/2528407R/2528407Rmv.shtml

A screen Inverter, and an LCD screen; are a MATCHED unit.

B) Screen Inverter:
May be bad, or the Wrong one

C) You may not have the screen Inverter, connected correctly to the Backlight.
Connections aren't tight.

D) The Display Cable TO LCD screen connection may not be tight, or correctly connected.

I know the display shows graphics, but a poor connection of Display Cable to LCD screen, can make the Backlight dim out.

I'm betting it is a poor connection, or the wrong screen Inverter, or wrong LCD screen.

Regards,
joecoolvette

(Be shame to kick that laptop to the curb. Nice laptop)

Jan 07, 2013 | Gateway P-6860FX Notebook

1 Answer

In my dellvostro a860 , rite side of the screen colours are spreaded,it it looks like shade,,whats the problem in that i m not getting please help me..........


It is the screen Inverter, or the LCD screen itself.

Screen Inverter: A small circuit board located behind the Display Bezel, and mounted towards the bottom of the LCD screen,

http://support.dell.com/support/edocs/systems/vosA860/en/sm/display.htm#wp1183775

The yellowish long object, at the bottom, is the screen Inverter.

Here is another look at it,

http://www.batterycenturys.com/dell-vostro-a860-inverter-p-185294.html

Dell Support > Vostro a860 Notebook PC > Service Manual,

http://support.dell.com/support/edocs/systems/vosA860/en/sm/index.htm

In the list clicking on -> Display, will get you to the first link above.

Need guidance in replacing the screen Inverter, post in a Comment.

(Just a basic guide using a Vostro 1014/1015 Notebook PC. Not yours, but good for basic guidance. This is replacing the LCD screen,

http://www.insidemylaptop.com/replace-lcd-screen-dell-vostro-1015-1014-laptop/
)

[ Primer:
An LCD screen cannot produce light by itself,

http://solutions.3m.com/wps/portal/3M/en_US/NA_Optical/Systems/BehindTheScenes/Optics101/

( Click on the small window with the monitor in it )

It needs an additional light source. A Backlight is the additional light source.
A Backlight can be a CCFL, (or more than one), or a series of LED's used as lights.

The Dell Vostro a860 Notebook PC uses one CCFL, for a Backlight, OR there are Vostro a860's that use LED lights.
(If you replace the LCD screen, make sure FIRST of what type of Backlighting it 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 thickness of a CCFL is 2mm. That is a little larger than 1/16th of an Inch.
Average length is almost as long, as the LCD screen is in height ]

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

Most of the time the fault is the screen Inverter.

The Vostro a860 Notebook PC's, that uses LED's as a Backlight, MAY also use a screen Inverter.

Primer over.

For your problem it could be the screen Inverter, but I lean more towards the LCD screen itself, is the problem.

How to test a screen Inverter? Requires a very sensitive multimeter.
Read; Expensive,

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

For a layman who does not have access to a sensitive multimeter, the method is to just replace the screen Inverter, and see if it is the problem.
'Parts changing', I know, but if you do not have the proper equipment to test with?

Screen Inverter replaced, and problem still persists, replace the LCD screen,

http://www.laptopscreen.com/English/model/Dell/VOSTRO~A860/

For additional questions please post in a Comment.
Regards,
joecoolvette

Jun 23, 2012 | Dell Vostro A860 Notebook

1 Answer

I have a dell laptop an the pixels r goinjg out i dnt want to buy a new computer. if u press the screen it works otherwise it freezes the screen then the screen is covered in different colored lines. im...


Hi matt d224...
.I included a couple of links to some parts for the D420
**************************************************************************************************************
There is one test to determine if it is the screen causing the problem or maybe the lcd converter.
Plug an external monitor into your laptop and see if the picture is good...if it is then replace the lcd screen.
If there is still no picture then the problem is probably the lcd inverter needs replacement
Please take time to rate me

Dell Latitude D420 replacment lcd screen:
http://www.laptopscreen.com/English/model/Dell/LATITUDE~D420/

Lcd Inverter replacment:
http://www.yallstore.com/laptop-lcd-inverter-replacement-for-dell-latitude-d420-141-p-1275.html

Youtube video "How to replace a Dell Computer screen";
http://www.youtube.com/watch?v=P7LVbOT5DnQ

How to replace a lcd inverter...this one is for a 630, but your will be the same:
http://www.youtube.com/watch?v=_ILAkFWp3gQ


Sep 11, 2011 | Dell Latitude D420 (DELLD420) PC Notebook

1 Answer

Hp g5000 sreen does not light up as usal, i can see a the start up when i shine a torch at the sreen, what do i need to do to get working.


An LCD screen cannot produce enough light by itself. It needs an additional source of light.
A Backlight is used as the additional light source.

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

The LCD screen is a composite of layers, surrounded by a thin metal frame that resembles a picture frame.
To one side of the LCD screen layers, and under the frame is usually where the Backlight is mounted.
[Note* Two Backlights are used in some models]

Replacing a Backlight is more labor intensive than replacing an Inverter.
Due to this, and the cost, the LCD screen itself is replaced as a unit most of the time, when it comes to Backlight replacement.

Example of a replacement LCD screen for the HP G5000 series of Notebook PC's,

https://www.screentekinc.com/HP_G5000_Series--15.4-inch--1280x800-wxga-laptop-lcd-screen.shtml

[Note* Stating HP G5000 is just stating the model series. When buying replacement parts the EXACT Model Number should be used. This information is located on the bottom of the laptop, in a white Service Tag.

When replacing an LCD screen, the model number of the replacement LCD screen should be matched to the existing LCD screen's Model Number.
Inverters and LCD screens are matched together. Make sure you get the correct part]

An Inverter is used to provide power from the laptop to the LCD screen, and to the Backlight.

Note* 90 Percent of the time the problem is a bad Inverter.

Example of an Inverter for an HP G5000 series notebook PC,

http://www.zlectronic.com/product/INVERTER-FOR-HP-DAC-07B035-DAC-09B017-DV5000-G5000.html

The LCD screen, Top Cover, Display Bezel, Inverter, Backlight, and various screws, make up the Display Assembly.
The Display Bezel made of plastic surrounding the LCD screen, and in front of the LCD screen is removable.
Behind it is easy access to the Inverter.

The Inverter is approximately 4 inches long, and the width of a No.1 pencil.
Usually located at the bottom of the LCD screen, and right behind the Bezel.

This article shows replacing an Inverter and LCD screen on a Compaq Presario v2000 series Notebook PC,

http://www.insidemylaptop.com/replace-lcd-screen-inverter-compaq-presario-v2000-laptop/

This pictorial guide is not for the HP G5000 series Notebook PC, but the models are very similar when it comes to Inverter replacement.
The above link is to show you what is involved.

Please post questions in a Comment.
Regards,
joecoolvette

Apr 03, 2011 | PC Laptops

1 Answer

My samsung laptop has a screen problem coz its screen turns to white(nothing you can see) then I connect the power supply (adaptor) I did also use the system recovery cd but the problem still not solved,...


Hello:

This is a hardware problem.
1.- Try to connect an external LCD screen (like a T.V) or CRT monitor using a HD15 VGA cable, switch to the external screen. You should use Fn + F5 to switch between screens. (See your Samsung keyboard for exact key combination). If image comes out, your motherboard has no problem.

2.- The internal cable connection to the mainboard may be loose. You need to take apart the display panel to check it out.

3.- If you can see light on the lcd screen, that means your lcd inverter works fine, so, the lcd screen is damaged. You must replace the lcd screen.

4.- If you can't see any light on your screen, your screen inverter needs to be replaced.

I hope this helps. Thanks

Feb 08, 2011 | Samsung NC10-14GW Notebook

2 Answers

LG Phillips LP154W01 15.4'' LCD screen lower half not working


Yes, you need to replace the screen, and it has to be the exact model. LCD screens break all the time, and it's not cost effective to repair them.

Oct 14, 2009 | Compaq PC Laptops

1 Answer

Have a P105 S6164 bought used lcd screen very dim


With the replacement screen did you replace the inverter board? Many laptop screens also have a very small fuse built into their power connecttions. Check this also.

Apr 03, 2009 | Toshiba Satellite P105-S6104 Notebook

1 Answer

LCD screen Cracked


You can get a replacement screen from Dell. Most computer repair shops can replace your LCD screen. If you're interested in replacing it yourself, you can try following these instructions although note that the instructions are for a different Dell laptop, so your experience may vary a bit.

Jan 10, 2008 | Dell Latitude D600 Notebook

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