Screen flashes when it select <Function> F7
Screen flashes when it select <Function> F7
When my A31p is powered up the screen is black. If I cycle through the <Function> F7 modes I can see the correct screen show the wallpaper and icons for a second then it goes black again. What could the problem be? It displays fine on an external monitor. I just tried a flashlight and I can see an image on the screen.
Thank you,
Docfxit
Thank you,
Docfxit
-
RealBlackStuff
- Admin
- Posts: 17512
- Joined: Mon Sep 18, 2006 5:17 am
- Location: Mt. Cobb, PA USA
- Contact:
Re: Screen flashes when it select <Function> F7
If you had a pinkish/reddish LCD before, then you need to replace the backlight/CCFL.
Cheapest test: try another LCD or replace the inverter.
But most likely: corrupt VRAM. Solution: new mobo.
Cheapest test: try another LCD or replace the inverter.
But most likely: corrupt VRAM. Solution: new mobo.
Lovely day for a Guinness! (The Real Black Stuff)
Check out The Boardroom for Parts, Mods and Other Services.
Check out The Boardroom for Parts, Mods and Other Services.
Re: Screen flashes when it select <Function> F7
That sounds great. You've covered all the bases. Sounds like I need to replace everything from your post.RealBlackStuff wrote:If you had a pinkish/reddish LCD before, then you need to replace the backlight/CCFL.
Cheapest test: try another LCD or replace the inverter.
But most likely: corrupt VRAM. Solution: new mobo.
I'd rather not spend the money on replacing everything on this laptop. The mother board was replaced less than a year ago.
If I had all the parts here I could test each one out to see what is bad. I don't have any parts here. That means I would have to buy everything.
Thanks,
Docfxit
-
RealBlackStuff
- Admin
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- Joined: Mon Sep 18, 2006 5:17 am
- Location: Mt. Cobb, PA USA
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Re: Screen flashes when it select <Function> F7
You didn't say if you had pink/red before, but seem to confirm this.
From your description (tried a flashlight and can see an image) it could be just a dead CCFL.
Ca. $17.- for parts, and VERY steady hands required for a DIY job of 30-60 minutes.
From your description (tried a flashlight and can see an image) it could be just a dead CCFL.
Ca. $17.- for parts, and VERY steady hands required for a DIY job of 30-60 minutes.
Lovely day for a Guinness! (The Real Black Stuff)
Check out The Boardroom for Parts, Mods and Other Services.
Check out The Boardroom for Parts, Mods and Other Services.
Re: Screen flashes when it select <Function> F7
That sounds much better. Do you have any idea where I might be able to get it for $17?RealBlackStuff wrote:You didn't say if you had pink/red before, but seem to confirm this.
From your description (tried a flashlight and can see an image) it could be just a dead CCFL.
Ca. $17.- for parts, and VERY steady hands required for a DIY job of 30-60 minutes.
Thank you very much.
Docfxit
-
ajkula66
- SuperUserGeorge

- Posts: 15739
- Joined: Sun Feb 25, 2007 11:28 am
- Location: Brodheadsville, Pennsylvania
Re: Screen flashes when it select <Function> F7
A good place to start...
www.moniserv.com
That being said, I always advise people against changing the CCFL on their own, especially on older machines...been there, done that and said "never again"...the chances of destroying the screen are excellent, even when one is careful. Dust is your biggest enemy.
Good luck.
www.moniserv.com
That being said, I always advise people against changing the CCFL on their own, especially on older machines...been there, done that and said "never again"...the chances of destroying the screen are excellent, even when one is careful. Dust is your biggest enemy.
Good luck.
...Knowledge is a deadly friend when no one sets the rules...(King Crimson)
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
-
RealBlackStuff
- Admin
- Posts: 17512
- Joined: Mon Sep 18, 2006 5:17 am
- Location: Mt. Cobb, PA USA
- Contact:
Re: Screen flashes when it select <Function> F7
Read my post here, then decide: http://forum.thinkpads.com/viewtopic.php?f=31&t=88991
And don't ask me, I won't do it for you.
And don't ask me, I won't do it for you.
Lovely day for a Guinness! (The Real Black Stuff)
Check out The Boardroom for Parts, Mods and Other Services.
Check out The Boardroom for Parts, Mods and Other Services.
Re: Screen flashes when it select <Function> F7
A good place to start...
www.moniserv.com
I tried to get an inverter from them. They don't have and can't get my inverter for an A31p.
Does anyone else have a good source for an inverter?
Thanks,
Docfxit
www.moniserv.com
I tried to get an inverter from them. They don't have and can't get my inverter for an A31p.
Does anyone else have a good source for an inverter?
Thanks,
Docfxit
-
ajkula66
- SuperUserGeorge

- Posts: 15739
- Joined: Sun Feb 25, 2007 11:28 am
- Location: Brodheadsville, Pennsylvania
Re: Screen flashes when it select <Function> F7
That was a recommendation for a CCFL, not an inverter...
I probably have a few spare inverters but won't be able to look for them before the weekend...
I probably have a few spare inverters but won't be able to look for them before the weekend...
...Knowledge is a deadly friend when no one sets the rules...(King Crimson)
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
Re: Screen flashes when it select <Function> F7
Please let me know if you have one that you would like to put to good use.ajkula66 wrote:That was a recommendation for a CCFL, not an inverter...![]()
I probably have a few spare inverters but won't be able to look for them before the weekend...
The one that is installed is FRU 91P7737
You are welcome to contact me privately if you like.
Thanks,
Docfxit
Re: Screen flashes when it select <Function> F7
Did you have any time to look for one over the weekend?ajkula66 wrote:That was a recommendation for a CCFL, not an inverter...![]()
I probably have a few spare inverters but won't be able to look for them before the weekend...
Thanks,
Docfxit
-
ajkula66
- SuperUserGeorge

- Posts: 15739
- Joined: Sun Feb 25, 2007 11:28 am
- Location: Brodheadsville, Pennsylvania
Re: Screen flashes when it select <Function> F7
No, sir, I did not.
Will drop you a PM in a day or two when I get to the "magic box"...
Will drop you a PM in a day or two when I get to the "magic box"...
...Knowledge is a deadly friend when no one sets the rules...(King Crimson)
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
Re: Screen flashes when it select <Function> F7
Do you have any idea when that might happen?ajkula66 wrote:No, sir, I did not.
Will drop you a PM in a day or two when I get to the "magic box"...
I'd like to get this fixed.
Thanks,
Docfxit
-
ajkula66
- SuperUserGeorge

- Posts: 15739
- Joined: Sun Feb 25, 2007 11:28 am
- Location: Brodheadsville, Pennsylvania
Re: Screen flashes when it select <Function> F7
If you're in a rush, get one on feebay.
I don't mind helping when I can, but I'm a VERY busy guy...so I'll get to it when I get to it...
I don't mind helping when I can, but I'm a VERY busy guy...so I'll get to it when I get to it...
...Knowledge is a deadly friend when no one sets the rules...(King Crimson)
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
Cheers,
George (your grouchy retired FlexView farmer)
AARP club members:A31p, T43pSF
Abused daily: T61p
PMs requesting personal tech support will be ignored.
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