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700m replacement lcd

post #1 of 18
7/14/06 at 8:43pm
Thread Starter 
My 700m pwrs up with a white screen after dropping 3 ft from bed onto carpet. VGA port to external lcd works good. The lcd is a samsung LTN121W1-L01 or Dell part Y4396 (20pin). I gather some replacements have truelife and others not and some have a 20 or 30 pin lcd. Please someone shed some light on this. Are the B121EW02 and B121EW01 AU Optronics lcd 20 or 30 pin and are the dell part#'s D5404 and W5382 compatible? Thanks in advance.
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post #2 of 18
7/17/06 at 8:39pm
Have you tried re-seating the LCD flex cable before spending money on a new screen? 3 feet from a bed onto carpet might be just enough to jar that connector loose. As for the part numbers, I got no clue, Dell has about eight different part numbers for the same thing it seems.
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post #3 of 18
7/17/06 at 10:40pm
Yeah, white screen could just indicate a bad cable connection. Try reconnecting the easy cables first. If you still get a white screen, then remove the LCD and reseat the connectors behind it.
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post #4 of 18
7/18/06 at 2:57pm
I have a simiar problem; I took off my keyboard on the 700m to clean it, put everything back together and now the screen is white with vertical stripes of different colors. It's white on the left side and the right side has the vertical colored stripes.

Not sure what happened, anyone here have an idea or am I better off sending it back to Dell to get it fixed?

Thanks
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post #5 of 18
7/20/06 at 12:35pm
Thread Starter 
Well thanks for the replies, I have tried what you all have sugested and no luck so far. I think I will test the lcd cable next for a short. And Noskillz I called Dell replacement parts and pretended to be a small biz they said if I was approved a replacement lcd would be $530. Way to much.
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post #6 of 18
9/9/06 at 4:31pm
Thread Starter 
Well just an update I tried another samsung lcd that came up for auction on ebay and it displayed correctly on half the screen. The other half was just black so I sent it back as a bad lcd. From my research so far it seems that there are to types of oem lcd cables K8923 aka wistron 50.43E04.101 which works with samsung LTN121W1-L01 and B121EW02. Then it appears Wistron 50.43E03.002 unknown dell part# works with all B121EW01. You can find pictures of the differences around and the most noticable difference is one has 15 wires and the other 13 and one has 5 red while the other 3. Mine was shipped about 4/15/05 so could this mean that everything after this date had the K8923 lcd cable with either the samsung or B121EW02 lcd. I update again once I purchase a B121EW02 and see if it works.
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post #7 of 18
9/14/06 at 6:04pm
Thread Starter 
The B121EW02 will replace the samsung. The only thing you need is the rails that screw into the side of your old lcd. Total price, $212 for a new lcd.
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post #8 of 18
4/18/07 at 9:42pm
hey guys have one quick question. i also have 700m and it came with samsung LTN121W1 lcd. well my gf managed to crackit bad. looking for replacement. i have found B121EW01 for very good price (>100) from posts above i can tell that B121EW02 will replace my samsung but B121EW01 requires diferent cable is that correct? and if that is the case is it worth to get B121EW01 and try sorcing out the cable or just spend extra $100 and get B121EW02 or LTN121W1?

thanks Dziugas
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post #9 of 18
4/23/07 at 1:24pm
Just buy the original screen that you took out of the laptop. Try this

http://www.screentekinc.com/Samsung-LTN121W1-L01.shtml
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post #10 of 18
5/8/07 at 12:59pm
Quote:
Originally Posted by TrogdorsFire
Just buy the original screen that you took out of the laptop. Try this http://www.screentekinc.com/Samsung-LTN121W1-L01.shtml
Hi All, My wife broke the LCD of my 700m. The orginal screen is AU Optronics B121EW01. I ordered a screen from eBay which read AUO B121EW01/02 (Imprinted on the Chip) and I thought that is should be compatible with the existing one. I replaced the new screen and turned on the machine. I smelled burning wire and the screen was lit but no image. This damaged my LCD cable... The two red wire on one side of the cable bursted. I have temporarily attached a monitor to the laptop... Later I found out that the white cover of the new LCD read B121EW02. Can anyone tell me if I buy a new LCD cable (K8923) and use it with the new screen... Will it work? Please help. Many thanks to all who have posted in this thread and thanks in advance to all who will be posting... -- AKA
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post #11 of 18
5/8/07 at 8:03pm
Which cable are you referring to? The cable at the bottom of the screen that plugs into the inverter, or the video cable that plugs into the back of the LCD panel?

That LCD panel should have worked in that model...let me know. I will check this thread in the morning.
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post #12 of 18
5/9/07 at 11:28am
Thanks for the reply.

I am sorry I sounded ambiguous. I was referring to the LCD Video Cable which connects to the LCD at the back.
I am wondering the cable got damaged because of the power requirement difference in the two LCD panels.

Before hooking up the new LCD panel (AUO - B121EW02) the old work working fine except the cracked screen in the right bottom corner. After I attached the new panel, the new panel was glowing florescent light blue with no data coming on the screen. I smelled something burning.
I disconnected and put the old cracked screen back and now even that one behaved like the that...no data and bright light blue.

Did this happen because of the faulty new LCD screen or because of different power requirements?

What should be the next step?
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post #13 of 18
12/4/07 at 12:40am

Problem with AUO - B121EW02

Hi, aka_atl.

Did you find what the problem was with the burning wire?
I ordered the same LCD (AUO - B121EW02) from Ebay and connected it. After trying to find what the smell was, I realized that the wires (two red wires on the outside) have burned (my finger as well When I connected the original (no data but the light comes on), wires were barel warm to touch.
Any help would be appreciated. Thanks!


Quote:
Originally Posted by aka_atl View Post
Thanks for the reply.

I am sorry I sounded ambiguous. I was referring to the LCD Video Cable which connects to the LCD at the back.
I am wondering the cable got damaged because of the power requirement difference in the two LCD panels.

Before hooking up the new LCD panel (AUO - B121EW02) the old work working fine except the cracked screen in the right bottom corner. After I attached the new panel, the new panel was glowing florescent light blue with no data coming on the screen. I smelled something burning.
I disconnected and put the old cracked screen back and now even that one behaved like the that...no data and bright light blue.

Did this happen because of the faulty new LCD screen or because of different power requirements?

What should be the next step?
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post #14 of 18
12/4/07 at 12:30pm
Hello,

The two models are different and uses different wiring. W01 uses different wiring and thus when you plug in W02 it burns the wiring. The LCD should be fine.
I ordered a compatible wiring from eBay for the W02 and then it worked.

Alok
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post #15 of 18
12/4/07 at 12:36pm
Boy, I am glad to hear that! So will the cable say it's for W02 version? There is a couple on sale on Ebay but doesn't say it's for B121EW02. Also, any chance that I've damaged the new LCD? It still turned on although showing bright white screen. Thanks a bunch!
Quote:
Originally Posted by aka_atl View Post
Hello, The two models are different and uses different wiring. W01 uses different wiring and thus when you plug in W02 it burns the wiring. The LCD should be fine. I ordered a compatible wiring from eBay for the W02 and then it worked. Alok
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post #16 of 18
12/6/07 at 5:35am
Any idea which cable I need to get to fix this problem?
Thanks in advance!
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post #17 of 18
12/14/08 at 5:32pm
Quote:
Originally Posted by DellCoolaid View Post
My 700m pwrs up with a white screen after dropping 3 ft from bed onto carpet. VGA port to external lcd works good. The lcd is a samsung LTN121W1-L01 or Dell part Y4396 (20pin). I gather some replacements have truelife and others not and some have a 20 or 30 pin lcd. Please someone shed some light on this. Are the B121EW02 and B121EW01 AU Optronics lcd 20 or 30 pin and are the dell part#'s D5404 and W5382 compatible? Thanks in advance.
Have you received any feedback on this ?. I am having a similar problem. Thanks, pr
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post #18 of 18
12/14/08 at 6:48pm
^^ have you read the whole thread? It looked like that the B1212W02 replaced the LTN121w1-L01 perfectly, both support WXGA

cheers ...
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