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szsiddiq
Nov 21, 2006, 10:50 AM
Alright, so i found a 1400 X 1050 resolution 12.1" screen. i think its the highest available. The one i found is made for a toshiba portable: LTD121KM1K . Its SXGA vs. the current screen's XGA. Any idea if it'll work in my 1.33ghz 12" powerbook??



Sdashiki
Nov 21, 2006, 12:00 PM
Alright, so i found a 1400 X 1050 resolution 12.1" screen. i think its the highest available. The one i found is made for a toshiba portable: LTD121KM1K . Its SXGA vs. the current screen's XGA. Any idea if it'll work in my 1.33ghz 12" powerbook??

probably not, the connectors are pretty model specific for all LCD panels and laptops.

sucks, but its why most are very $$$, especially apple compatibles.

whawhat
Nov 21, 2006, 12:41 PM
just an fyi:

http://www.macservice.com/screens.cfm

pretty pricey but they do good work

baxterbrittle
Nov 21, 2006, 01:02 PM
Alright, so i found a 1400 X 1050 resolution 12.1" screen. i think its the highest available. The one i found is made for a toshiba portable: LTD121KM1K . Its SXGA vs. the current screen's XGA. Any idea if it'll work in my 1.33ghz 12" powerbook??

Actually there is a good chance it will work. I have been thinking of using the same screen for a 12" PB project. If you can get it at a good price I say go for it as if it doesn't work you can always sell it again for around the same price. We have a thread here (http://forums.macrumors.com/showthread.php?t=207751&page=1) about upgrading laptop displays. If you can find some pics that would be helpful. Get the seller to take pictures of the rear lvds connector and inverter connections. LCD's are actually pretty standardised nowdays so once you get that info post it up and we'll see what we can come up with.

szsiddiq
Nov 21, 2006, 02:39 PM
Actually there is a good chance it will work. I have been thinking of using the same screen for a 12" PB project. If you can get it at a good price I say go for it as if it doesn't work you can always sell it again for around the same price. We have a thread here (http://forums.macrumors.com/showthread.php?t=207751&page=1) about upgrading laptop displays. If you can find some pics that would be helpful. Get the seller to take pictures of the rear lvds connector and inverter connections. LCD's are actually pretty standardised nowdays so once you get that info post it up and we'll see what we can come up with.
thanks for the encouragement. ive been to that thread before, but havent had a chance to read through the whole thing yet.
if i muster up the courage to spend 300-400bucks on something that may or may not work i might! it'd be freaking sweet tho


just an fyi:

http://www.macservice.com/screens.cfm

pretty pricey but they do good work

im familiar with them, but from what i kno they dont do upgrades on screens, just replacements

szsiddiq
Nov 22, 2006, 09:36 AM
im workign on getting some of that info from eBay sellers, but it'll probably be a few days before they get back to me. if i can sell my pb screen and by this new screen for around $100 difference, i should be able to afford it. itd be sweet if it worked!

looking around, this same screen is the screen toshiba picks for its tablets. must be a good choice then.

pmartin
Mar 4, 2007, 05:11 PM
Did you ever find out if the LTD121KM1K would work in the 12" with some minor modding?

szsiddiq
Mar 4, 2007, 05:26 PM
Did you ever find out if the LTD121KM1K would work in the 12" with some minor modding?
I've a feeling it will, but it's a $250 non returnable feeling. So i decided not to risk it :).

HWgeek
Feb 28, 2008, 09:46 AM
I went and got a beater portege M200 off of ebay recently, and took it apart to see what the screen was.
It is a Toshiba LTD121KM1K, with the touchscreen add on.
The panel connector is wider and has more pins than the powerbook connector. 20 vs 32 pins. 30 are signal, 2 are end shield grounds.
Also there is a second circuit to drive/detect touch screen activity off to one side. I will post pics in a few days when I can get to it... (too many projects going on right now :-( )

Anyone have pinouts for the pb 12" panel(s) ?? Its time consuming to pin them out, but if its done, an adapter could possibly be made.

One possible issue (ran into this with the pismo's) Does the graphics chip support multi lvds streams? If not then 1024x768 is the best we will be able to do. (pismo only supports one stream/channel, to get higher rez you have to go to 2+ streams to support the data throughput)

Pinouts for the ltd121 or the torisan panel would go a long way to figuring that out. Also any spec's on what the graphics chip does would help too.
(I will of course poke around via google etc, figure others might have avenues or have the info already)

Cheers

HWgeek

HWgeek
Feb 17, 2009, 08:13 AM
Quick update. The Toshiba LTD121KM1K has the same type of connector.
The connector on the cable side is 30 pin - the board connector is 30pin, but two additional "pins" that are shield grounds.
The connector is made by JAE , and initially looks to be a FI-X series connector. I ordered some to try to make an adapter cable to wire up the panel to the G4 12" laptop.

Looking at the cabling on the M200 donor laptop, I can deduce that the twisted wires in pairs are the LVDS signal lines.



I went and got a beater portege M200 off of ebay recently, and took it apart to see what the screen was.
The panel connector is wider and has more pins than the powerbook connector. 20 vs 32 pins. 30 are signal, two are end grounds.
Also there is a second circuit to drive/detect touch screen activity off to one side. I will post pics in a few days when I can get to it... (too many projects going on right now :-( )

Anyone have pinouts for the pb 12" panel(s) ?? Its time consuming to pin them out, but if its done, an adapter could possibly be made.

One possible issue (ran into this with the pismo's) Does the graphics chip support multi lvds streams? If not then 1024x768 is the best we will be able to do. (pismo only supports one stream/channel, to get higher rez you have to go to 2+ streams to support the data throughput)

Pinouts for the ltd121 or the torisan panel would go a long way to figuring that out. Also any spec's on what the graphics chip does would help too.
(I will of course poke around via google etc, figure others might have avenues or have the info already)

Cheers

HWgeek

OrangeSVTguy
Feb 17, 2009, 03:32 PM
Almost a year later.... :D

Keep us posted on this. Would be cool to have a higher res 12" PB. Would be really cool to somehow hook up the touchscreen part too ;).

HWgeek
Feb 18, 2009, 12:14 PM
Yup :-)
got stalled with other stuff :-)

The good news is that i have ordered the correct connectors to hook up the panel to the mac. Hopefully in a few weeks I can sort out the signals (I have a scope and know how to use it :) ) and do a test wire up.

Cheers!

kensenjiha
May 25, 2010, 08:56 PM
you guys.

i found another panel
BOE HV121P01-100 / HV121P01-101

it has the same type 20pin connector as the origional LGP LP121X04

and view angle up to +/- 89deg (IPS?)

OrangeSVTguy
May 25, 2010, 09:03 PM
you guys.

i found another panel
BOE HV121P01-100 / HV121P01-101

it has the same type 20pin connector as the origional LGP LP121X04

and view angle up to +/- 89deg (IPS?)

That's great as I would love to upgrade my LCD, need to replace it anyways but those are still $250+. Way more than the PB is worth :(. If I can get one for around $50 then I would buy it(same as the stock 12" PB LCD).

**edit**
I'm googling around for part #s but does anyone know if this would work in the PB 12" (http://cgi.ebay.com/Dell-Latitude-LS-12-1-LCD-Assembly-/270584124184?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item3f00121318)?

kensenjiha
May 26, 2010, 10:36 AM
Double bad news

1: HV121P01 is 1.2 mm thicker than original LCD (5.5mm)
2: mounting type is diff. please check the datasheets, maybe need some forge.

datasheet's download URLs:

http://cfs5.tistory.com/upload_control/download.blog?fhandle=YmxvZzI3NDkyQGZzNS50aXN0b3J5LmNvbTovYXR0YWNoLzAvMTIwMDAwMDAwMDAwLnBkZg%3D%3D&filename=HV121P01-100_Rev.P0.pdf

http://www.diamondsystems.com/files/binaries/LG%20Electronics%20LP121X04.pdf

when i opened my PB 12" A1010 today.
i found another LCD, IDTech IAXG01B

kensenjiha
Jun 18, 2010, 11:47 AM
i replaced the LCD with an HV121P01!!

doubled the pixels before.

I love wide angle IPS! I love high resolution!

i'll post a full story later.

:D:D:D:D

show you guys some pics now.

OrangeSVTguy
Jun 18, 2010, 04:18 PM
i replaced the LCD with an HV121P01!!

doubled the pixels before.

I love wide angle IPS! I love high resolution!

i'll post a full story later.

:D:D:D:D

show you guys some pics now.

Wow! That looks so incredible! Please post up the details asap.

666sheep
Jun 18, 2010, 06:30 PM
Rispecta!!!
I'll be waiting impatiently for details...

kensenjiha
Jun 19, 2010, 12:25 AM
I've posted the full guide on ifixit.com

http://www.ifixit.com/Guide/Repair/PowerBook-G4-Aluminum-12-Inch-1-1-5-GHz-LCD-panel-upgrade/3117/4

;)

OrangeSVTguy
Jun 19, 2010, 10:27 AM
I've posted the full guide on ifixit.com

http://www.ifixit.com/Guide/Repair/PowerBook-G4-Aluminum-12-Inch-1-1-5-GHz-LCD-panel-upgrade/3117/4

;)

Great. Now I just gotta find the LCD for cheap enough. Hate to spend $250 for a screen on a $200 laptop :). Probably better off finding a whole lenovo for parts or something.

zmttoxics
Jun 19, 2010, 10:31 AM
I always liked the higher end g4 powerbooks, the 12" is definitely more fun then a netbook!

This is an excellent mod and the guide was well photographed. Very cool!