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lazybones18
Posts: 4
Registered: ‎11-03-2008
Location: Los Angeles
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Lenovo T61 Backlight Problem !

Hi, so i bought a notebook Lenovo T61 last year in september. The model is 6459CTO with a 15.4 WSXGA screen. This is how it shows on the packing list.

 

15.4 WSXGA- TFT

 

So 25 days after warranty expired the notebook screen died. How **bleep**ty is that ? When i turn on the notebook, i only see very dim thinkpad on the screen and then it gets completely dark. After researching, I am quite sure its either the inverter or the backlight. Since i am a college student i cant really afford getting it fixed so i have to do it myself.

 

Can anyone help me find the backlight ? I tried finding the backlight online but no success. Also it would be great if someone knows how to open up the notebook LCD and replace the backlight. I have all the required tools including the solder. Please help me out !!! Thanks

ajkula66
Posts: 7,628
Kudos: 757
Solutions: 799
Registered: ‎11-23-2007
Location: USA
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Re: Lenovo T61 Backlight Problem !

Welcome to the forum!

 

Before you start pulling that T61 apart, let's review a couple of things:

 

a) Does it have Intel or nVidia graphics?

 

b) Does it display anything on external monitor?

 

c) Was the LCD reddish/pinkish on initial boot before this last episode?

 

While it may very well be the inverter or backlight (more likely) you may also be looking at a motherboard problem. That's why I'm asking whether the machine displays on external monitor.

 

Replacing a backlight is NOT a job for a novice, take it from someone who's done it in the past but chooses to have it done by another party nowadays...

 

Good luck and let us know.

Cheers,

George




In daily use: T43pSF, R60F, T61, X301

Collecting dust: T60, T61p, R500F

Enjoying retirement: A31p, T42p,

Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W

I build FrankenPads....scary FrankenPads...

S = SATA-mod (on T43/p units only)
F = FrankenPad
L = LED-mod utilizing an UXGA AFFS LED screen




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.
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lazybones18
Posts: 4
Registered: ‎11-03-2008
Location: Los Angeles
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Re: Lenovo T61 Backlight Problem !

1) It has the Nvidia QuadroNVS Card

2) It works perfectly fine on the external monitor

3) When the LCD was working fine, it used to turn reddish/pink sometimes while running windows. 

 

I have some experience with electronics i think i can pull it off. If not, I talked to a technician he said if i bring him the parts he can install them for $50. But first i need to find the backlight somewhere that matches the exact model. However, i dont know if it is the inverter or the backlight ? However, i found the inverter online, but i am unable to find the backlight. Does anyone know where to get one ?

ajkula66
Posts: 7,628
Kudos: 757
Solutions: 799
Registered: ‎11-23-2007
Location: USA
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Re: Lenovo T61 Backlight Problem !

Try eBay...make sure that it matches the LCD size.

 

BTW reddish/pinkish hue on the boot is a dead giveaway for a failing backlight, nothing else gives out this symptom.

 

Good luck.

Cheers,

George




In daily use: T43pSF, R60F, T61, X301

Collecting dust: T60, T61p, R500F

Enjoying retirement: A31p, T42p,

Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W

I build FrankenPads....scary FrankenPads...

S = SATA-mod (on T43/p units only)
F = FrankenPad
L = LED-mod utilizing an UXGA AFFS LED screen




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.
.
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lazybones18
Posts: 4
Registered: ‎11-03-2008
Location: Los Angeles
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Re: Lenovo T61 Backlight Problem !

is there a different backlight for wsxga ? or the WXGA one would work ? because i can only see WXGA backlights not the WSXGA
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lazybones18
Posts: 4
Registered: ‎11-03-2008
Location: Los Angeles
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Re: Lenovo T61 Backlight Problem !

since i only see WXGA backlights online ! and not the WSXGA !
Retired Guru
harryc
Posts: 124
Registered: ‎11-23-2007
Location: Upstate New York
0

Re: Lenovo T61 Backlight Problem !

[ Edited ]

I think this is the CCFL needed -

http://www.lcdparts.net/ccflDetail.aspx?ProductCCFL=MSLLENOVOIBM154W

Send Moniserv an email or call them to confirm before ordering. 

Message Edited by harryc on 11-05-2008 07:37 AM
TSR
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TSR
Posts: 48
Registered: ‎07-29-2008
Location: Atlanta
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Re: Lenovo T61 Backlight Problem !

All you need is the inverter card. That should solve your problem. Rarely do you see dimness cause by the LCD
TSR
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TSR
Posts: 48
Registered: ‎07-29-2008
Location: Atlanta
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Re: Lenovo T61 Backlight Problem !

According to:
http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-68233#wsxga

Inverter card
Foxconn -  41W1338
TW Sumida - 13R1015

 

To order the part you can call
1-800-388-7080

 

Also this might be useful
HMM:
http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-67980
This will tell you how to replace the inverter

 

ajkula66
Posts: 7,628
Kudos: 757
Solutions: 799
Registered: ‎11-23-2007
Location: USA
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Re: Lenovo T61 Backlight Problem !

Not to offend anyone, but changing the inverter will NOT solve the problem. You most definitely need a new backlight.

 

Screen size does matter. Resolution does not, when buying a CCFL.

 

Good luck.

Cheers,

George




In daily use: T43pSF, R60F, T61, X301

Collecting dust: T60, T61p, R500F

Enjoying retirement: A31p, T42p,

Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W

I build FrankenPads....scary FrankenPads...

S = SATA-mod (on T43/p units only)
F = FrankenPad
L = LED-mod utilizing an UXGA AFFS LED screen




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.
.