T400 LCD Screen has a dark piont within half year.

T400 LCD has a dark point within half year, which I bought Oct. 2008. Could I get some change or warranty?

welcome to the forum!
you'll need to reference your defective pixel(s) with the current replacement policy to know if it falls under warranty:
http://www-307.ibm.com/pc/support/site.wss/MIGR-69856.html
ThinkStation C20
ThinkPad X1C · X220 · X60T · s30 · 600

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Hey Michelle,
Most certainly this is a inverter cable issue. Usually they open up near the hinge point. I've repaired two that this happened to. I have also seen two that shorted to ground and took out a tiny fuse on the logic board so after I repaired the short I had to bridge the fuse w/ a fuse link.
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Hey @Naidia,
Thanks for posting in the HP Support Forum. I would like to assist you with your HP Officejet Pro 8620 e-All-in-One Printer's issue.
Just to clarify, is it that your printer display is too dark to easily navigate through the menu items, or is it completely black and non-responsive (save for the printing and faxing functionality you mentioned)?
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If the product does not turn on by itself, press the Power button () to turn it on.
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Thank you!
E-roq
I work on behalf of HP.
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
Click Kudos Thumbs Up on the right to say “Thanks” for helping!

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T400 LCD Screen Replacement -

Hi gurus:
This concerns replacement of LCD Screen on my 14" T400 Laptop, which i'd purchased on Jan 14 2009.
>> This is a LED backlit WXGA+ Screen.
Usage:
** Very light usage; 2-3 hrs/week;
** Used this as a standby for my work laptop.
** Sparingly used for pretty much anything.
** I am very disappointed with this laptop and all through its performance and battery life has been very sluggish. (1 hr battery at the most).
>> Runs very slow even with Vista/XP downgrade
Problem:
>> 1.5 yrs later, the LCD screen on this laptop doesn't turn on.
>> I have tried the LCD Troubleshooting Guide @:
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-4YQHUC
** The screen is just plain dead. No startup blink. Nothing.
** Identified the following part details from my order:
From Order Confirmation:
44C1347
SBB 14.1"WXGA+LEDB/L BTCAMWWAN
FRU Part#
Mfg part# FRU part # Description Serviceable?
42T0503 42T0504 14.1 INCH LCD DISPLAY FRU YES
** What are my options in getting going with this laptop?
>> The LCD screen conking out in this manner with minimal use is unacceptable, according to me.
>> I had checked the price online for the Retail replacement part, and it brings it to a total of $400 approx.
Is there any extended warranty for the LCD screens? Any advise over where to buy from?
Regards,
Raghav

Hi Rich:
Thanks for your reply.
* I tried connecting the VGA cable to my LCD Monitor/TV, but i do not see any output after selecting the Secondary Display.
* When i boot up the Machine, the LCD does not blink/flicker e.t.c, but i can see that the regular bootup is happening as i look at the Hard Drive light and it keeps flickering.
* How do i check the LCD sub card? I am assuming its the panel because the LED Light on top of the Screen seems to turn on.
* Yes i have only the 1 year warranty.
>> My previous Dell Inspiron which had the same warranty term lasted about 4 years and only gave up because of the Motherboard.
I personally bought a Thinkpad thinking it was reliable, but this is quite bad, especially for a sparingly used laptop.
regards,
Raghav

T400 LCD screen black after replecement

History - T400 (2767-31U), Win 7.
LCD screen broken due to a drop. Laptop still worked with an external monitor via VGA slot and I ordered a replacement LCD.
The replacement finally (used-off ebay) arrived and I followed the HMM manual and replaced the LCD. But it still does not work. I can continue to use the ext monitor without any issues. The replacement LCD was the full assembly not just the LCD screen.
Here is what I noticed:
1. When booting up, I see the Thinkpad logo very very faintly before it goes fully black again.
2. All the LCD panel lights work fine - Wireless, BT, HDD, Battery, Power etc etc including the reading light.
3. The laptop recognizes when I open and close the lid and switches on the ext monitor accordingly.
Here is what I did (I followed the HMM to the detail):
4. When I replaced the LCD, I noticed that the original LCD had 2 black wires insulated at the ends originating from the bottom left area of the LCD that were not actually plugged into any area of the MB. I did the same on the replacement LCD and left them as it is. I don't even know what these are.
5. I connected the other 3 wires(white, grey and black) and the main connector as the original LCD/HMM.
6. I uninstalled the display drivers and restarted and Win 7 automatically installed the drivers again.
7. The Most important part - The original LCD when powered on, DID have backlight showing me the mangled area of the screen so I know it worked before replacement.
I have read quite a bit of posts regarding T400 black screen issues, pointing me towards a faulty MB, blown fuse or faulty inverter. I know the replacement is an exact replica of the original LCD.
Could it be that I didn't connect the wires correctly to their respective slots on the MB?
Any inputs would be highly appreciated.
Edit:
Solved!
Go to Solution.

Welcome to the forum!
Do I understand correctly that you bought a complete new LCD Assembly? Do you have proof from the seller that it was working properly before you bought it?
Can you see a picture if you use a torchlight over the panel?
A faint dark picture could be a defective LCD cable, inverter/LED card or a defective LCD backlight. Since you see a picture I would rule out a motherboard fuse problem.
Edit: Richk was faster!
/L40SX/240/240X/2*340CSE/360PE/365XD/380D/380E/380XD/380Z/390/560E/560X/2*570/2*600/600E/750Cs/755C/760CD/760EL/760XD/770E/A20p/A22p
A31/i1600/G40/R50p/R61i/S30/SL510/2*T22/4*T4x/11*T6x/6*T4x0x/6*T5x0/3*W5x0/W700/3*X2x/4*X3x/3*X4x/5*X6x/3*X6xT/10*X2xx/2*X200T/4*X30x/Z60m/3*Z61x
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T410 display replacable with T400 LCD screen?

My friend recently had a T400 that broke, and he took apart the computer for the sake of doing so.
He knew that I had a T410, and was wondering if I might want some of the parts. I knew that my screen was probably th biggest bottleneck I could upgrade for my computer, and immediately went for his screen. The screen was a LP141WP2. After some research, I've found that it is a LCD screen, just like my thinkpad t410. However, when I searched it up, I've found that it only put into T400. So, I was just wondering if anyone had any knowledge about this matter. I don't want to go tearing up my beloved T410 if it isn't going to be replaceable.
Thanks!
Thinkpad displays.
http://www.thinkwiki.org/wiki/TFT_display

This isn't a widespread defect AFAIK.
Do you have switchable graphics?
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Not a dumb question, Apple seens to be the only company who doesn't name iPods by generation.
Colour screen right? 20 GB
Has to be a 4th generation, otherwise known as a 'Click Wheel' or for the later models, like yours, the 'colour screen' iPod.
Accessory companies like Griffin or Belkin have (had?) little pictures when they asked you to select your model, just choose the one that has the right button layout ( as a general rule, the Hard drive size occasionally makes a difference if you are after a case).
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T400 LCD Screen flickers or blinks every 5 seconds

T400 with Win XP Pro and Integrated Graphics, all the latest updates. Even did a Rescue to original factory.
I have read numerous issues with Thinkpad screen flickering, but have not found a solution for my laptop.
My T400 just started doing the following: Every 5 seconds, the screen will flicker one time looking like an old CRT screen rolling over once. Every 5 seconds. Oddly, this occurs only at the 60Hz rate. When I set the rate at 50Hz, the problem appears to get fixed. I have disable the Graphics Battery power option.
The flicker occurs during boot up even on the initial black / white screen, narrowing it down to hardware or bios.
Given the number of LCD issues I've read about on this era of machine (2009), I called Lenovo to see if there was a recall - they said no. I'm a Thinkpad fan, but I am beginning to wonder if Lenovo is not acknowledging a known defect.
I just want to know what to fix. Is this a defective LCD screen, or a motherboard chip issue?
Any thoughts out there??

This isn't a widespread defect AFAIK.
Do you have switchable graphics?
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My Laptop screen has gone Dark

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My display was absolutely fine, till I installed Windows 8.1. After a few minutes of working properly, the laptop screen went dark.
I have installed all available updates for Windows, and have also updated the drivers for the graphics card, however the screen is still dark.
Kindly suggest a way to fix this

You should read this
http://download.lenovo.com/lenovo/content/windows8-1/upgrade/ideapad/index_en.html
It is not recommended to upgrade the following models to Windows® 8.1 because some VGA related issues cannot be solved by the vendor, currently.
U310, U410, U510, U410 Touch, U310 Touch;
Z500 Touch,
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Control Panel LCD Screen is too dark.

Is there a way to brighten the LCD screen on the control panel? Thanks.
This question was solved.
View Solution.

Hi @LeftyMike ,
I see that you would like to be able to lighten the LCD screen on the printer. I will do my best to assist you with this issue.
I have checked through the menu structure and wasn't able to find anything for the brightness for the display.
Try tilting the control panel up for viewing, to see if the light shows up.
Touch a button on the display, just to make sure the printer isn't gone into sleep mode.
Make sure the printer is connected directly to a wall outlet. (don't use a power hub or a surge protector) This ensures the printer is receiving full power and may help this situation.
If the issue persists, then I would recommend to call HP Tech Support for further assistance to see what other options are available for you at 800-474-6836. If you live outside the US/Canada Region please click the link below to get the support number for your region. Contact HP Worldwide.
Have a great day!
Thank You.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Gemini02
I work on behalf of HP

T400 LCD Screen has a dark piont within half year.

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