Editing IBM P70/P75 keyboard

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{{TODO translate|from=Chinese}}

{{infobox dkeyboard
| image name   = IBM 23F3212 -- top, flat.jpg
| pn           = 
| fcc          = 
| model        = 
| branding     = 
| manufacturer = 
| switch       = [[Alps plate spring]]
| layouts      = [[JIS]], [[ISO]], [[ANSI]]
| features     =
| interface    = 
| weight       = 
| years        = 
}}

==Variants==
{| class="wikitable row-headings"
! Part !! EC !! FRU !! Layout !! Confirmed dates
|-
| 23F3216 || C27215 || 65X1604 || German ISO || 90/01
|-
| 23F3212 || C27695 || 65X1601 || Danish ISO || 90/02
|-
| 65F0045 || C27700 || 65F0063 || JIS || 90/07
|}

==Description==

The P70/P75 keyboard was part of the IBM P70 portable 386 computer, also known as the IBM Model 8573-121. The keyboard would connect to the portable 386 via the tiltable top part which also serves as a large keyboard "stand". To save weight of the unit as a whole, the P70/P75 keyboard was constructed accordingly.

The [[Alps SKCP series]]  switches are PCB mounted in a snap-in case that is made of thin plastic compared to other IBM keyboards of that time, presumably also to save weight and space. The keyboard speaks the PS/2 protocol but uses a proprietary connector.<ref>Sandy55 — [http://sandy55.fc2web.com/keyboard/connector_pblc.html#PS/2%20P7x Details about the connector used by the host computer]</ref><ref>Imgur — [https://imgur.com/a/Svxv4 Pictures of the male part of the custom connector]</ref>  The keycaps are dye sublimation / PBT.

==Disassembly instructions==

When attempting to open the P70/P75 keyboard one should follow the instructions on '''[http://sandy55.fc2web.com/keyboard/ibm_p7x_en.html this link]'''.

Proceed with caution to avoid breaking the case since it can be quite strenuous to open the plastic latches, particularly the ones under the function row that latch to a metal bar running all across the keyboard and are not easily accessible.

==Gallery==
===23F3212===
Danish ISO version.

<gallery widths=250 heights=187>
File:IBM 23F3212 -- top, flat.jpg           | Top
File:IBM 23F3212 -- feet lowered.jpg        | Top, with feet lowered
File:IBM 23F3212 -- side.jpg                | Side
File:IBM 23F3212 -- back.jpg                | Back
File:IBM 23F3212 -- bottom.jpg              | Bottom
File:IBM 23F3212 -- switches.jpg            | Switches
File:IBM 23F3212 -- opened.jpg              | Opened
File:IBM 23F3212 -- various.jpg             | Various details
File:IBM 23F3212 -- switch disassembled.jpg | Switch disassembled
</gallery>

==23F3216==
German ISO version.

<gallery widths=250 heights=160>
File:IBM 23F3216 front.JPG             | German ISO version
File:IBM 23F3216 assembly.JPG          | Assembly top case removed
File:IBM 23F3216 PCB.JPG               | PCB
File:IBM 23F3216 serial badge.JPG      | Serial# and IBM badge
File:IBM 23F3216 case detail.JPG       | Case detail
File:IBM 23F3216 lower case.JPG        | Lower case, shielding
File:IBM 23F3216 upper case.JPG        | Top part snap-in case
</gallery>

==References==
<references/>

==External links==
*KBtalKing — [http://kbtalking.cool3c.com/article/47087 ■鍵盤史的遺跡IBM-Model 8573-P70(ALPS葉式彈簧)■] (23F3212)

[[Category:IBM keyboards]]
[[Category:Keyboards with Alps plate spring switches]]
[[Category:List of all keyboards]]