Lenovo Thinkpad USB Keyboard with Trackpoint (aka SK-8855)

davkol

04 Jan 2015, 00:58

There has been some interest in rebuilding the external thinkpad keyboards or something like that, thus I'm posting requested pictures.

I have two SK-8855 keyboards: one is R00 with Czech ISO layout, the other one R01 with US ANSI layout. The difference between the two revisions is probably firmware; the older one apparently fails to register double tapping at times, and releasing modifiers (Shift in particular) isn't always registered on time, which may cause DOuble CAps, if you type "fast" (over 50 wpm, according to some reviews on Amazon).
Lenovo SK-8855 R00 (Czech ISO)
Lenovo SK-8855 R00 (Czech ISO)
keyboard_front.jpg (152.51 KiB) Viewed 5617 times
If you want to open it, unscrew all eight screws; two of them are under stickers—it's possible to remove the left one without damaging anything; the right one… not so much. Luckily, it doesn't void the warranty in EU AFAIK.
8 screws (2 are hidden under the stickers)
8 screws (2 are hidden under the stickers)
keyboard_rear.jpg (142.39 KiB) Viewed 5617 times
Top and bottom parts of the case are snapped together on the remaining three edges. Use some thin, wide object to open the keyboard; unsnapping the rear is optional.
the top and bottom parts are snapped together on the sides and in the rear; use a wide thin object to open the sides, the rear is optional
the top and bottom parts are snapped together on the sides and in the rear; use a wide thin object to open the sides, the rear is optional
chassis_bottom.jpg (144.51 KiB) Viewed 5617 times
the top and bottom parts are snapped together on the sides and in the rear; use a wide thin object to open the sides, the rear is optional
the top and bottom parts are snapped together on the sides and in the rear; use a wide thin object to open the sides, the rear is optional
chassis_top.jpg (145.06 KiB) Viewed 5617 times
case
case
chassis.jpg (136.62 KiB) Viewed 5617 times
Here go all the electronics:
Czech ISO keyboard removed from the SK-8855 R00
Czech ISO keyboard removed from the SK-8855 R00
kb.jpg (158.27 KiB) Viewed 5617 times
Now the USB converter from the R01…
connected USB converter PCB @ Lenovo SK-8855 R01
connected USB converter PCB @ Lenovo SK-8855 R01
pcb_connected.jpg (504.91 KiB) Viewed 5617 times
USB converter PCB @ Lenovo SK-8855 R01
USB converter PCB @ Lenovo SK-8855 R01
pcb_front.jpg (605.37 KiB) Viewed 5617 times
backside of the USB converter PCB @ Lenovo SK-8855 R01
backside of the USB converter PCB @ Lenovo SK-8855 R01
pcb_rear.jpg (579.93 KiB) Viewed 5617 times
…and the R00:
USB converter PCB @ Lenovo SK-8855 R00
USB converter PCB @ Lenovo SK-8855 R00
pcb_front.jpg (649.87 KiB) Viewed 5617 times
backside of the USB converter PCB @ Lenovo SK-8855 R00
backside of the USB converter PCB @ Lenovo SK-8855 R00
pcb_rear.jpg (638.21 KiB) Viewed 5617 times
I've tried to replace the keyboard module (supposedly identical with the T410's one) by a random one I found at home (from X200, i.e. one generation older). It worked fine except the Fn layer and suprisingly the (left) Win/Super key.

For the reference, stickers from the stock keyboards in my SK-8855 follow; R00 first…
Czech ISO keyboard @ SK-8855 R00
Czech ISO keyboard @ SK-8855 R00
kb_sticker.jpg (162.42 KiB) Viewed 5617 times
…and now the R01:
US ANSI keyboard @ SK-8855 R01
US ANSI keyboard @ SK-8855 R01
kb_sticker_2.jpg (181.07 KiB) Viewed 5617 times
US ANSI keyboard @ SK-8855 R01
US ANSI keyboard @ SK-8855 R01
kb_sticker_1.jpg (177.53 KiB) Viewed 5617 times
That's all, I guess. I hope it helps.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

DerpyDash_xAD

15 Jan 2015, 18:12

Nice :D I love me a lenovo thinkpad keyboard :D

crashnburn

02 Sep 2021, 14:43

DerpyDash_xAD wrote:
15 Jan 2015, 18:12
Nice :D I love me a lenovo thinkpad keyboard :D
This breakdown brought me back after I gave up with the registration process late one night. Then the fruit hit me :)

JonathonHayes

22 Sep 2021, 08:34

crashnburn wrote:
02 Sep 2021, 14:43
writemyresearchpaper.onl
This breakdown brought me back after I gave up with the registration process late one night. Then the fruit hit me :)
[/quote]

Well done! One must always spend time wisely for the things that you need not for the things that you want :D

Post Reply

Return to “Gallery”