A31p black screen

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edik
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Joined: Thu Aug 24, 2006 2:27 pm
Location: UK

A31p black screen

#1 Post by edik » Thu Oct 11, 2012 3:55 pm

Just got an eBay A31p - unfortunately some problems (which the seller denies).

Completely black screen (but can see image very faintly) - looks like backlight is gone
system boots OK (can see Windows booting and green disk light)

Switching using F7 (to turn the LCD on/off I don't have an external monitor) I see sometimes a flash of light in the lower right corner of the ThinkPad LCD.

Any idea is it the inverter? If so can I use the inverter from my working UXGA A30p?

I also have a dead motherboard T42p UXGA with good screen - can this be of any use? Screen?? (Assuming its the A31p screen and not the inverter).

many thanks!!

2017: T450 i5-5300U/12/256+128/FHD
2007-2014: T520/i7-2760QM/8GB/320GB, WSXGA+, X200s, T500, A31p, A30p, T42p, X60s, X32, X31
Gone but not forgotten 1998-2006: 2006 T43p 2668-H2G (2GB/60), T22 2648-8EG (128/20), 2005 X40, X31, 2004 T30 SXGA+, 600X, 2003 770 P233+DVD Card, 760XD 1998 760XL+104MB

ajkula66
SuperUserGeorge
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Location: Brodheadsville, Pennsylvania

Re: A31p black screen

#2 Post by ajkula66 » Thu Oct 11, 2012 4:50 pm

It's most likely not the inverter.

Try the screen from T42p with a known good A3x inverter and see where that gets you.

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: R61

PMs requesting personal tech support will be ignored.

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