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w500 that powers up then powers down after swaping lcds
Posted: Mon Mar 31, 2014 9:21 pm
by 1mouse3
i got a w500 I have been piecing together, I got a t500 screen assembly that was stated it had a bad ribbon. I also got a sharp wuxga screen and a replacement ribbon, I put it together an found that it had a wight line vertical on the. I went ahead an installed windows hopping it went away, it didnt so I swap lcd's to the wsxga+. now when I power it up, it powers right back down with ether lcds, with the ribbon unplugged it stays on. what am I looking at that happened and is there any test I can do
Re: w500 that powers up then powers down after swaping lcds
Posted: Tue Apr 01, 2014 4:38 am
by RealBlackStuff
AFAIK Sharp never officially made LCDs for IBM or Lenovo.
You probably bought a "100% compatible" screen, with a different pin layout from a Lenovo-spec screen.
An LCD having a bad ribbon usually means, that one or more of the column- or row-drivers has come loose from the LCD.
This then results in things like your vertical white line.
Having that white line is either an indication of incompatibility, or proof that it is faulty.
Another possibility: you got the wrong LCD cable.
So by using them, you now have a few options:
- you have a bad screen
- you have a bad cable
- you did not connect either of them properly
- you blew a fuse on the motherboard
- you destroyed some other electronic parts on the motherboard.
Maybe it still works on an external monitor?
Re: w500 that powers up then powers down after swaping lcds
Posted: Tue Apr 01, 2014 5:15 am
by Tasurinchi
He's probably tried getting a Sharp
LQ154M1LW2A, which works for T/W500 and 15.4 T/R/Z series
@1mouse3: please make sure you got the model mentioned above, many Ebay sellers often sell "compatible" panels that don't work. Let's hope you didn't mess up your laptop...
Re: w500 that powers up then powers down after swaping lcds
Posted: Tue Apr 01, 2014 8:23 am
by 1mouse3
it turned on and worked with the sharp LQ154M1LW2A lcd sept for the line, then turned it off to see if this lcd that came with the bad cable in and it will no longer turn with a lcd. unplug the lcd ribbon and I can use a external display, I bought 2 different lcds. this is the line looked like
https://www.dropbox.com/s/tjyrmcnf72zj3 ... 133915.jpg
this is what it dose now and have to remove the battery to get it to reset
https://www.dropbox.com/s/uc4gxz1md5ty4 ... 034836.mp4
Re: w500 that powers up then powers down after swaping lcds
Posted: Tue Apr 01, 2014 8:58 am
by RealBlackStuff
That's definitely a faulty screen with disconnected column-drivers.
You can't fix that.
The other screen with the bad cable (what cable?) may be a different incompatible version.
Re: w500 that powers up then powers down after swaping lcds
Posted: Tue Apr 01, 2014 9:07 am
by 1mouse3
the one that came in the t500 assembly with bad ribbon is is a lp154w02
Re: w500 that powers up then powers down after swaping lcds
Posted: Tue Apr 01, 2014 9:51 am
by RealBlackStuff
Is that an LG-Philips LP154W02 (TL)(06) or (TL)(10) with a Lenovo P/N or FRU? (which one)
Re: w500 that powers up then powers down after swaping lcds
Posted: Tue Apr 01, 2014 9:55 am
by 1mouse3
(TL)(10) and a FRU:42t0423
Re: w500 that powers up then powers down after swaping lcds
Posted: Tue Apr 01, 2014 8:02 pm
by 1mouse3
well cleaned all the corrosion off this t500 board that came as a complete base I got, there was no hope in saving that water damaged board. it still shows no sigh of life, so guess I am going to get another board or set. I am not hurt on it but I keep having bad luck with these parts, I only paid $30 for it as a bios passworded board. I am not going to mess with that lcd again, but will get another sharp lcd I like it. I am to the point I could had just bought a working one
