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T60 backlight dead - next steps?
T60 backlight dead - next steps?
Hi everyone!
Backlight on my T60 is now dead. LCD is working. Backlight suddenly stopped working, and is off in BIOS as well. Did not have any screen tint.
I reseated LCD connectors, and the graphics card is definitely working.
I don't want to buy an inverter, then a display, and do progressive diagnostics beyond what I've already done. Should I buy a new LCD assembly? Or is there a significant chance (more than 10%) this is a motherboard problem?
Thank you!
Backlight on my T60 is now dead. LCD is working. Backlight suddenly stopped working, and is off in BIOS as well. Did not have any screen tint.
I reseated LCD connectors, and the graphics card is definitely working.
I don't want to buy an inverter, then a display, and do progressive diagnostics beyond what I've already done. Should I buy a new LCD assembly? Or is there a significant chance (more than 10%) this is a motherboard problem?
Thank you!
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- Location: Loch Garman, Éire
Re: T60 backlight dead - next steps?
Try an external monitor to be sure.
A dead CCFL/backlight will not revive ever.
Depending on your technical level, you could try and replace the CCFL yourself, or buy a replacement LCD.
You MUST buy an IBM/Lenovo original LCD, not a so-called "guaranteed compatible", because they are NOT!
For CCFL swap, see if this helps: http://forum.thinkpads.com/viewtopic.php?f=31&t=88991
A dead CCFL/backlight will not revive ever.
Depending on your technical level, you could try and replace the CCFL yourself, or buy a replacement LCD.
You MUST buy an IBM/Lenovo original LCD, not a so-called "guaranteed compatible", because they are NOT!
For CCFL swap, see if this helps: http://forum.thinkpads.com/viewtopic.php?f=31&t=88991
Lovely day for a Guinness! (The Real Black Stuff)
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
Re: T60 backlight dead - next steps?
RealBlackStuff, thank you!
The graphics card works - I can see a faint correct screen image, though it doesn't illuminate. Pixels activate properly (bios, starting windows, etc.).
I don't want to replace the backlight to find out that it is an inverter problem or a motherboard blown fuse. Also, technically, this is just beyond what I am willing to do - replacing the display itself is quite fine. (15 inch XGA)
So I figured - buy an assembly and shoot several potential trouble spots at once. But if the motherboard could be an issue, maybe I should be looking for a new machine.
The graphics card works - I can see a faint correct screen image, though it doesn't illuminate. Pixels activate properly (bios, starting windows, etc.).
I don't want to replace the backlight to find out that it is an inverter problem or a motherboard blown fuse. Also, technically, this is just beyond what I am willing to do - replacing the display itself is quite fine. (15 inch XGA)
So I figured - buy an assembly and shoot several potential trouble spots at once. But if the motherboard could be an issue, maybe I should be looking for a new machine.
-
- Admin Emeritus
- Posts: 23809
- Joined: Mon Sep 18, 2006 5:17 am
- Location: Loch Garman, Éire
Re: T60 backlight dead - next steps?
Inverters rarely -if ever- die.
And a mobo problem is unlikely since the picture is displayed.
A complete XGA lid for a 15" T60 will set you back anywhere from $80.- upwards.
But try first in the Marketplace forum.
And a mobo problem is unlikely since the picture is displayed.
A complete XGA lid for a 15" T60 will set you back anywhere from $80.- upwards.
But try first in the Marketplace forum.
Lovely day for a Guinness! (The Real Black Stuff)
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
Re: T60 backlight dead - next steps?
Thank you, RealBlackStuff! You put my mind at ease.
UPDATE
UPDATE:
I bought an entire replacement screen assembly (screen, lid, inverter assembled together), installed it and - lo and behold - the problem persists. No change in symptoms.
Backlight on the new lcd assembly does not power on. Display works fine (although it is almost completely black) and I can see pixels activating properly (Bios, starting windows, etc).
Does that mean it is a fuse on the motherboard? I don't have the skills to solder fuses on integrated circuits. Ship to lenovo? How much would that set me back?
I bought an entire replacement screen assembly (screen, lid, inverter assembled together), installed it and - lo and behold - the problem persists. No change in symptoms.
Backlight on the new lcd assembly does not power on. Display works fine (although it is almost completely black) and I can see pixels activating properly (Bios, starting windows, etc).
Does that mean it is a fuse on the motherboard? I don't have the skills to solder fuses on integrated circuits. Ship to lenovo? How much would that set me back?
Re: T60 backlight dead - next steps?
You'd be better off buying a new laptop than shipping your unit to Lenovo...for $400-500 they would charge to swap a board you can do a lot nowadays...
...Knowledge is a deadly friend when no one sets the rules...(King Crimson)
Cheers,
George (your grouchy retired FlexView farmer)
One FlexView to rule them all: A31p
Abused daily: T520, X200s
PMs requesting personal tech support will be ignored.
Cheers,
George (your grouchy retired FlexView farmer)
One FlexView to rule them all: A31p
Abused daily: T520, X200s
PMs requesting personal tech support will be ignored.
Re: T60 backlight dead - next steps?
Oh well. Thank you, Ajkula. This was a really nice board - C2D 1.66 with Intel graphics. I will be looking to buy the exact same computer, then.
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