T400 LCD problem

hi guys, my t400 lcd does not included led backlight, and i feel it is terribly dim compare to other notebook such as compaq v3000 and hp dv2000, what is going on? i heard someone said t400 lcd without led backlight are good too, but my lcd seems dim even though i switch to screen brightness to the max, it is not totally dark but it looks dim, can you guys help me?

also do you have the switchable graphics card version? if so switch to intel by going to the power saving mode, and see whether the internal LCD still have this problem.
But what you are describing sounds like an issue with the LCD panel itself, you can get a new LCD for around 150 to 200 dollars on the net.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

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Thinkpad T400 LCD problem

Dear Lenovo Expertise,
My thinkpad is T400; 7417-CTO.
For past one wk, their is a constant "thin yellow" line in the right corner of LCD. It sometimes disappears when I press corner of LCD. But still it re-appears. Its driving me nuts.
Pls tell me what to do. Do i need to replace it ?
Regards,
Dr. Khan

Try eBay:- T400 LCD
Marketplace of forum.thinkpads.com • Index page is another alternative, personally I recommend the forum as I have bought quite a few things from there.
Hope it helps.
Maliha (I don't work for lenovo)
ThinkPads:- T400[Win 7], T60[Win 7], IBM 240[Win XP]
IdeaPad: U350
Apple:- Macbook Air [Snow Leopard]
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T400 LCD problem possibly connected to power

I have a T400 and recently I have been getting a turqouise flashing line at the bottom of my screen (not more than 1 mm thick). It flashes consistently once every ~4 seconds, and it only flashes when the battery is less than 100%. When my computer is plugged into the adapter and fully charged this is not an issue. I have tried restoring my computer to a point before this issue started, reinstalled the BIOS, reinstalled the video driver, and done a SFS scan, but at this point I am not sure what else I can do. Any suggestions?

also do you have the switchable graphics card version? if so switch to intel by going to the power saving mode, and see whether the internal LCD still have this problem.
But what you are describing sounds like an issue with the LCD panel itself, you can get a new LCD for around 150 to 200 dollars on the net.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Lenovo T400 LCD Problem (shut off and bezel light abnormality )

Hello !!! This is regarding a problem with the Thinkpad T400. The problem is -- When the lid is at ~65 degrees , everything works fine. Whereas , when the lid is raised to viewing angle of arounbd 90 degrees , it goes to sleep AND , I noticed that the bezel lights (wifi , bluetooth , Cellular , Caps Lock etc...) also turn off , this normally never used to happen before. Even while the laptop is about to go to sleep, it will keep the bezel lights on till you can see the moon light. Now, even while sleeping , I can't see any moon light. If you have a valuable input , please do share it with me. Excuse me for any spelling errors as I have to bend my head doewn to peek under the display and tyoe .. -- it's painful Thanks a Lot!!!! Matt

Hi ChrisMatthew,
Welcome to Lenovo Community!
I find this issue could be with LCD cable, if you have enough knowledge on system hardware you can check with reseating on both the ends (On LCD panel & System board).
If you are want to try on that then you can also do it with the help of Hardware Maintenance Manual.
Please click here to visit the link where you can get the list of support contact numbers, select the respective region and give a call.
Hope this helps.
Best regards,
Hemanth Kumar

Lenovo ThinkPad T61 14,1" LCD problem

Hi, LCD in my T61 14,1" with nVidia graphics (T61 7664-18G) has failed - I attached an image. External LCD is 100% OK, just internal have this problem (like image in fog, bad readable). I try to replace LCD - problem is still there. What can be the solution? LCD cable, invertor, or it is a nVidia problem (but really just internal LCD problem)? Thanks for help.
Internal LCD (like in fog, no readable text - or very bad):
Link to picture
External LCD (vertical lines just in photo, everything is 100% OK):
Link to picture
Moderator note; picture(s) totalling >50K converted to link(s) Forum Rules

xsuchy09 wrote:
Buy new/used mainboard with integrated Intel graphics (external display in dock width 1920x1200 will not be problem, second display with same resolution will be ok with intel graphic too I think, or?)? Buy another T61/T400 with Intel graphics (because of compatibility and old style keyboard) It is used only for programming, I think that I don't need graphics performance ... Are parts from T61 with nVidia graphics full compatible with parts with Intel graphics (when I will go this way I will have some replacement parts )? Or is it compatible T61 14,1" and T400 in main parts? What will be the best choice? Performance of T61 is sufficient for development of web applications etc.
If you don't need graphic performance and the T61 performance is enough for you I would buy an Intel T61 planar and replace the Nvidia one. RAM and CPU are compatible, but you will need an integrated heatsink since it's different than the discrete one you have now. I can't comment about driving two monitors, I guess you now use both VGA and DVI ports, right?
You can also re-use your hard drive or SSD and WLAN card.
If you go the T400 way (or even T410, it also has a non chiclet keyboard) you will be able to reuse the hard drive/ssd. RAM is not compatible! (DDR3 instead of DDR2)
Hope this helps!
Cheers
/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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T400 LCD discoloration

Hiyas, I have a t400 2764-CTO and Ive noticed a Pink and Yellow discoloration in the bottom right hand corner of my LCD...
http://img100.imageshack.us/img100/6564/img2473r.jpg
I was wondering, what is the cause and how can I fix it? Is it a LCD problem, or a problem with the connector and if so if any of these things can be fixed with the warranty.

discolouration like this is usually the problem with the LCD itself.
This should be repairable under warranty, call 131 426 press 1 and then 3.
But you should put a 3M sticker note on the LCD telling them where to look for the problem.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

T400 LCD TFT display specifications

Hey everyone,
I was wondering if anyone would have on hand or know where to find information on the display specifications for the T400 LCD TFT display (WXGA, LED backlight).
Specifically I'm looking for:
Model Name/Manufacturer:
Display area:
Pixel Pitch:
Synchronization
Horizontal: (kHz)
Vertical: (Hz)
Display Color: (24bit, 16bit)
Cheers,
J

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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LCD Problems w/ Indigo 366MHz

I have an Indigo iBook that I bought of off eBay.
I haven't had any problems with it until recently. I notice that certain shades of gray on the screen (notably the gray border on the OS9 start up "box" with the smiling Mac logo when it is starting up), and once it gets to the desktop, certain pixels "flash" green/blue. They are mostly all in the same area, but can be spread out depending on the number of colors that are shown (256 grays shows a LOT of them).
Would this be an LCD problem, an inverter problem, or a cable problem?
I'm leaning towards a cable problem, as the pixels that flash change whenever the monitor gets "re-initialized" (the screen blinks, changing color and/or resolutions). It is also only noticeable on certain colors.
I am comfortable with replacing the parts myself, I just don't want to waste money on something that will most likely not solve the problem.
If it matters, I am running OS 9.2.2 with 256MB of RAM, with a 10GB (stock, as far as I know) hard drive.

in general - if you change the whole display assembly, it will work with (nearly) any configuration. Once i came across a display that was only willing to work with a firewire Clamshell and refused to work in a 300MHz model, but i think that was bad luck because in three dozen of other switches that had been no problem.
It is nearly impossible to get spanking new display panels for the Clamshells because the 800x600 resolution has been long out of date.
So all you can get is a used one, and it is hard to tell if the one you're buying is good or not.
The display gets darker after some thousand hours of use because of the neon tube (CCFL) which lights up the display is getting older. You will see darker spots in the corners, and it will be no bright as before.
You can change the CCFL and renew your panel if it is stll working- i havn't tried this yet.
If it helps i can provide a link that contains my personal list of shops with spare parts:
http://www.ibook-clamshell.de/content/view/109/lang,en/

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

T23 LCD problems

Hi there, I have a T23 that's developed an LCD problem. I've connected it to an external monitor, which works fine, and I guess it's worth mentioning that the LCD is not totally 100% black, but you can just barely make out the shapes of whatever is on the screen. My question is, does that seem like something that needs the screen replaced, or is it worth taking it apart to check for loose LCD ribbon cable, inverter board or plug going to the CCFL before I go to the expense of buying a spare LCD?
Thanks in advance for any help!

It's either your backlight (CCFL tube within the LCD) or your motherboard. I'd be putting my money on CCFL, which can be replaced, but it's a tricky job if you've never done it. I know that I wouldn't want to do it myself again.
If your LCD is a regular XGA (1024x768) it might be easier to get the complete used one from eBay for a few Euros. If it's SXGA+ (1400x1050) I'd suggest going through the trouble of having the backlight replaced, because these are fairly rare and valuable.
Good luck and let us know.
Cheers,
George
In daily use: R60F, R500F, T61, T410
Collecting dust: T60
Enjoying retirement: A31p, T42p,
Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W
Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

Bulge on the upper right of T400 LCD bezel

Hi all,
Recently I notice there is a small bulge on the upper right of my T400 lcd bezel, specifically near the opening claw there. Is this normal ? I have been using for a month I jst notice it recently.
Thanks a lot

Hi,
Sorry for the late reply was away for a few days. Attached image.. Pls comment. Its nothing big, however its annoying once found out
Sorry the pic is low quality took it from my mobile phone
Link to Picture
Before, see the 2nd pic and you will notice the gap will close once I press them
Link to Picture
After I close
Thank you in advance
Moderator Note; pictures >50K converted to links. Forum Rules
Message Edited by andyP on 08-06-2009 09:15 PM

White screen on my 3gs, i would like to spot the problem if it is a cable problem or an LCD problem?

after dismantling the iphone 3gs and reassmble it again i got a white screen, i would like to spot the problem if it is a cable problem or an LCD problem?

Steps for iPhone white screen, #1 Reset. If fixed done. If the screen becomes normal, but then again goes back to white screen, fix is new LCD Display. If remains continuous white screen after Reset, then the problem could be Logic Board or LCD Display, in this situation try a new LCD Display hoping it will fix issue, but will not if problem is Logic Board fault.
Before opening and during all repair of iPhone 3GS make sure it is OFF. This is why you now have a White Screen, try not to make that mistake again.

T400 - Video problems and a long wait for repair...

Hi,
I'd just like to state my experience with Lenovo Customer Support for a video problem with my T400. Bottom line, as of today, it's been around 27 business days that it's been with Lenovo, and 41 days total since it's failed on me, and nobody, including Lenovo Customer Support, seems to know what its status is exactly, except that they're waiting on a part which has no ETA.
In July 2009, I bought a T400, a 2764CTO version with the switchable graphics between the internal intel graphics and the ATI GPU.
All was well until February 1st, 2010, when the LCD sudden wouldn't work. Well, it would work, but the screen was very very dim, even with the display maxed out on brightness. You would have literally bring your nose to the screen in order to even make out any text or images - definitely unusable. However, if you hooked up an external monitor via the video output, the T400 would display video output properly that way. When I did this, I noticed that the switchable graphics option wasn't there any more - couldn't switch to the ATI GPU. Based on this, I figured it must be a video card or LCD issue, or a combination of both.
So, I called Lenovo Customer Support (CS) at 1-800-565-3344, since I'm up here in Canada, and I initially was issued a case number of 41JRFSD, and I agreed to send it to a local Lenovo Repair Centre. Oops, my bad, I made a mistake using the locator tool I was told to use at bplocator.lenovo.com, and thought the Centre was relatively close. Not quite. So, I called Lenovo CS again, and they issued me with a new case number, 40KWSYF, and said they'd send a box for return to depot. And within 2 days, Feb 2nd or 3rd, I got a Purolator courier return box. That's fast service! Pleased, I put my T400 in according to instructions, and I sent it off.
Fast forward to about mid-February. I called Lenovo CS, and apparently there was a delay - the depot needed a part that wasn't in stock. Fine, I know these things can happen - I'll wait.
Fast forward to March 1st. I talk to a Lenovo CS rep, and it appears that the part needed has arrived, and they've put a rush order to get the computer back to me. Great!
Fast forward to March 8th, still no computer. I talk to another Lenovo CS rep... strange, there's no update. The issue gets escalated to the Depot managers.
Fast forward to March 12th. Still no word on my T400's status. An email fron CS has been sent to the depot. Not even the CS reps know what's going on. The rep I talk to figures there should be a response by the end of the day.
Fast forward to today, March 13th, 4:50pm Pacific Time. I just finish talking to Lenovo CS, there's been no response from the depot. Apparently there's a part that they're waiting on for repairs, but there's no ETA on it. Is it the same part that I've waiting on all this time? Is it a new one? I don't know.
At this point, I've been told to send an email explaining my situation, and I've also been told to talk to Scott the next time I call CS on Monday after 3pm Eastern. I have to stress that the Lenovo Customer Support Reps I've talked to have all been very sympathetic and have been courteous, helpful, and professional - something I appreciate from having worked in Customer Support myself. But the bottom line remains: my computer's not back to me.
So, my questions to the community here: is my experience here typical? Is there any hope of my seeing my computer back, or even at least just the hard drive? I've used Lenovo computers for work for the past 7 years, and it was my good work experiences that led me to buying a Lenovo for home use. However, it's been a while since I've been without my T400, and I was hoping to get my taxes done on the computer too, since they're due at the end of March. I'll reserve judgement on Lenovo until I get my computer back, but at this point, all I can say is... I'm disappointed.
If you're reading this, I'll let you judge my experience for youself. I'll update my case as it progresses.
Thanks!
Moderator edit: Removed support contact private information, per the Community Rules.

Hi all,
So, an update with some good news: my computer is finally back!
After a total of over 40 business days (just over 2 months) I finally have my T400 back at home, working again!
According to the spec sheets, the repair depot had to replace: the systemboard/planar, display/LCD panel, LCD cable, PC card, bluetooth, and the inverter. BIOS/Embedded controller was also updated, along with the regular diagnostics to ensure everything was working properly.
I give Lenovo credit though: they got the final parts to repair the computer on Monday, April 5th, and shipped my computer back to me for the next day (today, April 6th). That's fast service, once repaired!
However, my case spans over 4 screens of updates and repair depot orders of parts.
Also, it took me over 10 calls to Lenovo's Customer Service, plus an escalation to a higher-level manager after 1 month had passed, to get progress updates and ETAs for repair.
Lenovo called me only once to give me an update, and that was the manager whom my issue was escalated to: all the other times, I called Lenovo for an update.
The story doesn't end here, however:
In talking to Customer Support, they told me that Sales might be able to sell me an extended warranty at a discount, given the issues I had. And indeed, after talking to Sales, they offered me a 1 year warranty extension at a price of just over $100 CDN, plus tax. This is a sale price, compared to the regular retail of $129. Unfortunately, they can't sell me just one month.
At this point, I refused their offer, and again escalated to a manager to request an extension of exactly 1 month on my existing warranty. I figure 1 month delay in repairs, that's plausible - crap happens, and while most repairs take 5-10 business days, I can understand it can sometimes go higher. Two months though.... My request for a warranty extension is being considered by the manager it was escalated to.
So, one last question for you folks reading this: am I being unreasonable, talking to Lenovo support one more time to request a 1 month extension of my warranty, given the length of time it's taken for repairs? I'll post the response Lenovo will give me tomorrow, as they've said they'll do.
One thing for sure: Lenovo's response will definitely influence my choice of brand from whom to buy a new computer (and it will influence the choice of my friends who've heard my issues, and maybe yours too). My particular repair problem may not come up often, but if it does happen to you, I'd be happy to know of your experience.
Thanks for sticking with me through the drama!

T400 LCD Panel Dithering

I have a display issue called dithering.
I run a T400 (2768 GP6) with Windows 7 Ultimate and Lenovo drivers through System Update. It is a switchable graphics model (Intel GMA and ATI HD3400).
No matter which graphic card is set to prior, I get dithering on the LCD Display (1440x900). Most noticeable are color gradients "stepped" and "grainy" colors. It is particularly disturbing on JPG images with compression artifacts on white background, that you usually don't see, the laptop displays dotted areas. Bright areas are like "white burnt", probably because the screen is not able to display light grey.
The dithering doesn't appear on an external display, I thus conclude it is not a software or hardware issue linked to the graphic card.
The dithering appears when running a Linux LiveCD, I thus conclude it is not an issue linked to the Windows installation.
I found in the Lenovo Community an article advising to downgrade the BIOS , when the ATI HD 3400 is set to prior. No matter which BIOS I use (3.13, 3.18 or 3.25), the issue persists.
Do you believe through your experience with these models it is a software issue ? Or a hardware issue where a display replacement might solve the problem ?
Thanks for your attention.

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

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 problem

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