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T400 Screen Has a Red Tint
Posted: Thu Aug 04, 2011 1:54 pm
by thnkpdrox
Hi,
Upon starting up the screen becomes very red which gradually goes away after the computer has been running for a while. It sometimes persists in the lower left corner. what can i do to fix it? If i need to buy a new part(s) please let me know what and provide a link. Thanks
If you guys need any extra info, ill be standing by to reply asap
Re: T400 Screen Has a Red Tint
Posted: Thu Aug 04, 2011 5:11 pm
by Harryc
You need a new LCD. The CCFL backlight is the problem.
Re: T400 Screen Has a Red Tint
Posted: Thu Aug 04, 2011 5:26 pm
by thnkpdrox
what can i do?
Re: T400 Screen Has a Red Tint
Posted: Thu Aug 04, 2011 5:40 pm
by ThinkRob
thnkpdrox wrote:what can i do?
Well... given what Harryc (correctly) said: get a new LCD.
Re: T400 Screen Has a Red Tint
Posted: Thu Aug 04, 2011 6:09 pm
by thnkpdrox
right, but i have no idea what type of LCD to get (if there are many) etc. where can i get one that would meet my needs. what to look out for. etc. im a complete novice when it comes to this
Re: T400 Screen Has a Red Tint
Posted: Thu Aug 04, 2011 6:15 pm
by Harryc
Start by posting the machine type/model number from the sticker on the bottom of the Thinkpad. It is a (7) digit alpha-numeric .e.g. 7647-3CU.
Is this machine still under warranty?
Re: T400 Screen Has a Red Tint
Posted: Thu Aug 04, 2011 6:42 pm
by thnkpdrox
2764CTO.
not under warranty. not that im aware of at least. unless it has life time (i didnt purchase any warranty and i dunno what the default is, if any). had this laptop for 2 years
Re: T400 Screen Has a Red Tint
Posted: Thu Aug 04, 2011 7:16 pm
by Harryc
Plug your machine type and serial number into this link to check your warranty. While on that page click on parts lookup and post the LCD FRU#.
http://support.lenovo.com/en_US/product ... fault.page?
Re: T400 Screen Has a Red Tint
Posted: Thu Aug 04, 2011 8:03 pm
by thnkpdrox
i cant find the serial key. not sure if im looking for 7 or 12 digit number. also i think it may have been worn off? or maybe the form didnt like my format? for machine type is T400 acceptable?
Re: T400 Screen Has a Red Tint
Posted: Thu Aug 04, 2011 8:21 pm
by Harryc
No, the machine type will be 2764. The serial number is a 7 digit number found on a sticker on the bottom of the laptop. .e.g. L3-745234
Re: T400 Screen Has a Red Tint
Posted: Thu Aug 04, 2011 10:10 pm
by thnkpdrox
all right i did that. and i found what i think you described
14.1 inch WXGA+ (1440x900) LCD service parts - ThinkPad T400 and R400
so theres like Service part number (FRU) and CRU ID.
i assume these are individual parts i can buy. if so which one is the one I need?
http://support.lenovo.com/en_US/product ... MIGR-70425
Re: T400 Screen Has a Red Tint
Posted: Fri Aug 05, 2011 5:16 am
by Harryc
For WXGA+ I would stick with an LG panel. That would be FRU# 42T0579. Here is a recommended source -
http://cgi.ebay.com/New-IBM-T61-R61-R61 ... 0587782092
Note: Disregard the machine type. T61 CCFL LCD's are the same as those in T400's.