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T43 screen gone almost dark...please help
T43 screen gone almost dark...please help
Yesterday suddenly my screen went very dark
If I look carefully I can see my desktop but the brightness have gone down the hill. Also nothing happens what i try to reduce or increase the brightness with the Fn key. It's plugged on my docking station and I have an external monitor which works fine via VGA. I replaced the screen 3.5 years ago after I accidentally cracked it.
Now the question is, does it have to do with the screen or the inverter? Or something else? It happens as soon as I switch on the laptop so the Operating system is out of the question.
Any opinions will be highly appreciated as I need to sort that out as soon as possible
If I look carefully I can see my desktop but the brightness have gone down the hill. Also nothing happens what i try to reduce or increase the brightness with the Fn key. It's plugged on my docking station and I have an external monitor which works fine via VGA. I replaced the screen 3.5 years ago after I accidentally cracked it.
Now the question is, does it have to do with the screen or the inverter? Or something else? It happens as soon as I switch on the laptop so the Operating system is out of the question.
Any opinions will be highly appreciated as I need to sort that out as soon as possible
Lenovo Thinkpad x301 2776 upgraded to 4GB PC3-8500S
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
Re: T43 screen gone almost dark...please help
Was this the first time that you lost the backlighting? Does the backlighting come back on if you power the T43 off for a while first?
Have you previously had a reddish tinge to the display at all?
Have you previously had a reddish tinge to the display at all?
X220 (4287-2W5, Windows 8 Pro) / X31 (2672-CXU, XP Pro) / X61s (7668-CTO, Windows 8 Pro)
Re: T43 screen gone almost dark...please help
Yes that was the first time.tomh009 wrote:Was this the first time that you lost the backlighting?
Last night it did come back for a few minutes but it was very dimmed. Now its always same, just very dark, can barely see the desktop. It's always the same from the time I switch it on.tomh009 wrote:Does the backlighting come back on if you power the T43 off for a while first?
No, never had anything like that.tomh009 wrote:Have you previously had a reddish tinge to the display at all?
Isn't the inverter that adjusts the brighteness on the screen? I am thinking that it might be that rather than LCD since the LCD still works. Or maybe I want it to be that cause it's much cheaper than buying the LCD!
Lenovo Thinkpad x301 2776 upgraded to 4GB PC3-8500S
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
Re: T43 screen gone almost dark...please help
Inverter is the cheapest possible fix, so try replacing it.
If that doesn't fix the issue, your LCD has a bad backlight or there's a motherboard problem.
Let's hope it's option # 1...and that all will be well with a new inverter...
If that doesn't fix the issue, your LCD has a bad backlight or there's a motherboard problem.
Let's hope it's option # 1...and that all will be well with a new inverter...
...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: T43 screen gone almost dark...please help
I've managed to find the cracked LCD. I was planning on replacing the backlight from the cracked screen to the broken one.ajkula66 wrote:Inverter is the cheapest possible fix, so try replacing it.
If that doesn't fix the issue, your LCD has a bad backlight or there's a motherboard problem.
Let's hope it's option # 1...and that all will be well with a new inverter...
But guess what? The cracked doesn't work either.
So it's got to be the inverter! I bought one on eBay for $10 and can't wait to try it! It's P/N is 26P8464.
Lenovo Thinkpad x301 2776 upgraded to 4GB PC3-8500S
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
Re: T43 screen gone almost dark...please help
Please let us know if this works! I have the same problem...
Re: T43 screen gone almost dark...please help
Is this hard to replace?
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Re: T43 screen gone almost dark...please help
The inverter? If so, then it's pretty easy to do. Grab a copy of the Hardware Maintenance Manual:fozzy40 wrote:Is this hard to replace?
http://www-307.ibm.com/pc/support/site. ... MIGR-58837 (TYPE 187x)
http://www-307.ibm.com/pc/support/site. ... MIGR-58791 (TYPE 26xx)
and find the section about removing the LCD front bezel. Typically, that's a couple of screws underneath plastic covers on the face of the bezel (some may be along the sides as well). Unclip the bezel, being careful not to break the thinner parts and the inverter is the thin, long board near the bottom of the screen. Unplug the connector going to the LCD panel and disconnect the inverter from the ribbon cable (a screw may be holding the inverter in place). Re-assemble in reverse order.
Ray Kawakami
X22 X24 X31 X41 X41T X60 X60s X61 X61s X200 X200s X300 X301 Z60m Z61t Z61p 560 560Z 600 600E 600X T21 T22 T23 T41 T60p T410 T420 T520 W500 W520 R50 A21p A22p A31 A31p
NOTE: All links to PC-Doctor software hosted by me are dead. Files removed 8/28/12 by manufacturer's demand.
X22 X24 X31 X41 X41T X60 X60s X61 X61s X200 X200s X300 X301 Z60m Z61t Z61p 560 560Z 600 600E 600X T21 T22 T23 T41 T60p T410 T420 T520 W500 W520 R50 A21p A22p A31 A31p
NOTE: All links to PC-Doctor software hosted by me are dead. Files removed 8/28/12 by manufacturer's demand.
Re: T43 screen gone almost dark...please help
I received my replacement inverter yesterday, tried it on but it's still the same. Then I tried it with the cracked LCD and guess what, the cracked LCD worked fine.fozzy40 wrote:Please let us know if this works! I have the same problem...
Basically there was nothing wrong with the inverter, the problem was that when I first tried the cracked LCD with the original inverter I FORGOT to connect its power to the inverter!
At least the inverter was only about $10 and I know that it's definitely the LCD. I guess I can't really blame it for being faulty since I've being using the laptop continiously for the last 4 years. Hopefully I'll get a nice deal off eBay now!
Lenovo Thinkpad x301 2776 upgraded to 4GB PC3-8500S
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
Re: T43 screen gone almost dark...please help
You cud take the backlight from the cracked lcd and put in the other lcd, abit of a tedious job but doable.
Re: T43 screen gone almost dark...please help
Oh yes, thank you! I completely forgot about that! Thank god I didn't order the screen...will attempt to replace the backlight tonight.xyz wrote:You cud take the backlight from the cracked lcd and put in the other lcd, abit of a tedious job but doable.
Lenovo Thinkpad x301 2776 upgraded to 4GB PC3-8500S
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
Re: T43 screen gone almost dark...please help
I find the idea of replacing a backlight with a used one not the best one around...
Backlights are less than $20 shipped...and that gets you an almost new LCD altogether...full brightness and everything...
My $0.02 only...
Backlights are less than $20 shipped...and that gets you an almost new LCD altogether...full brightness and everything...
My $0.02 only...
...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: T43 screen gone almost dark...please help
Well yeah, fair point. I guess I'll try the old one now, as it's already Thursday and If I order another one, probably won't have it till next week...ajkula66 wrote:I find the idea of replacing a backlight with a used one not the best one around...
Backlights are less than $20 shipped...and that gets you an almost new LCD altogether...full brightness and everything...
My $0.02 only...
The other shouldn't be very bad, as I bought the t43 brand new and screen was only used for 5months before I cracked it with a piece of glass
Lenovo Thinkpad x301 2776 upgraded to 4GB PC3-8500S
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
Re: T43 screen gone almost dark...please help
So it sounds like there isn't a definitive way to differentiate if it's a backlight vs. inverter problem. Does either typically go out first?
Re: T43 screen gone almost dark...please help
hi everyone
Sorry I havent updated everyone with the problem, today finally decided to swap the backlight with the one from the cracked screen.
It is indeed a very tricky job as it involves opening the screen and messing with the insides of it! Was really impressed with the numbers of layers needed for a LCD. After about 1 hour I was finished and the result was very positive. Screen is working properly, there is a small shadow on left corner but cant really complain as I saved quite a lot of money. In the meantime I will be searching eBay to see if I can get a spare one to have around in case i need it for the future...
So if you ever crack your screen do not throw it away as it may be usefull in the future
Sorry I havent updated everyone with the problem, today finally decided to swap the backlight with the one from the cracked screen.
It is indeed a very tricky job as it involves opening the screen and messing with the insides of it! Was really impressed with the numbers of layers needed for a LCD. After about 1 hour I was finished and the result was very positive. Screen is working properly, there is a small shadow on left corner but cant really complain as I saved quite a lot of money. In the meantime I will be searching eBay to see if I can get a spare one to have around in case i need it for the future...
So if you ever crack your screen do not throw it away as it may be usefull in the future
Lenovo Thinkpad x301 2776 upgraded to 4GB PC3-8500S
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
IBM Thinkpad T43 2668 moded: Intel 780, 2GB PC2-4200S,100GB 7k100,IBM II a/b/g,BT,DL DVD Burner,9cell,Advanced Dock II
Toshiba Satellite Pro U200 (T7200, 2GB, 3945a/b/g, DL DVD Burner)
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