Compatibility of external MSX keyboards thread | MSX Resource Center (Page 2/7)

Prophet (3438)

18-02-2012, 20:49

Captain DB25 female 13 12 11 10 9 8
25 24 23 22 21 etcetera

frontview
pin1 Y0 pin2 Y1 pin3 Y2
etc
pin9 Y8 pin10 X0 pin11 X1 pin12 X2 pin13 X3
pin14 X7 pin15 X6 pin16 X5 pin17 X4 pin18 GND 19,20,21,22 NC pin 23 kana pin 24 caps pin 25=vcc

Hi!

Why etc? Whit this pinout i can convert the keyboard from 8250/55/80 or F-700?

Thanks!

By jltursan

Prophet (2619)

19-02-2012, 13:37

He probably means that you must simply follow the logic sequence:

pin3 Y2
pin4 Y3
.
.
pin9 Y8

The same applies to the DB connector pinout, it's widely described over the net

By msxholder

Champion (399)

19-02-2012, 13:46

Correct !

By anonymous

incognito ergo sum (116)

20-02-2012, 19:59

These extra signals of Philips keyboard can be omitted?

By caro

Hero (513)

22-02-2012, 12:12

Keyboard connector type: IDC-26
----------------------------
! PIN ! PHILIPS  ! -> DB25 !
-----------------!---------!
!  1  !   Y10   !    -     !
!  2  !   Y9    !    -     !
!  3  !   Y8    !    9     !
!  4  !   Y7    !    8     !
!  5  !   Y6    !    7     !
!  6  !   Y5    !    6     !
!  7  !   Y4    !    5     !
!  8  !   Y3    !    4     !
!  9  !   Y2    !    3     !
! 10  !   Y1    !    2     !
! 11  !   Y0    !    1     !
! 12  !   X7    !   14     !
! 13  !   X6    !   15     !
! 14  !   X5    !   16     !
! 15  !   X4    !   17     !
! 16  !   X3    !   13     !
! 17  !   X2    !   12     !
! 18  !   X1    !   11     !
! 19  !   X0    !   10     !
! 20  !   KANA  !   23     !
! 21  !  /CAPS  !   24     !
! 22  !   NC    ! 19..22   !
! 23  !  +5v    !   25     !
! 24  !   GND   !   18     !
! 25  !   GND   !   -      !
! 26  !   GND   !   -      !
!-----!---------!----------!

By msxholder

Champion (399)

22-02-2012, 22:26

I didn't connect kana and caps the Y15,y14,y13,y12,y11,y10and Y9 are left open i made use of an 74ls154

"the rest pulled up with 4k7 "made by Signetics

By mesiasmsx

Prophet (3438)

01-03-2012, 13:03

Thanks!!! A keyboard from 8280 coming soon . I hope give news about this

By jltursan

Prophet (2619)

10-03-2012, 01:46

Pioneer Palcom PX-7 keyboard

-----------------
! PIN ! PIONEER !
----------------!
!  1  !   CAPS  !
!  2  !   KANA  !
!  3  !   Y9    !
!  4  !   Y8    !
!  5  !   Y7    !
!  6  !   Y6    !
!  7  !   Y5    !
!  8  !   Y4    !
!  9  !   Y3    !
! 10  !   Y2    !
! 11  !   Y1    !
! 12  !   Y0    !
! 13  !   X7    !
! 14  !   X6    !
! 15  !   X5    !
! 16  !   X4    !
! 17  !   X3    !
! 18  !   X2    !
! 19  !   X1    !
! 20  !   X0    !
! 21  !  +5v    !
! 22  !   GND   !
! 23  !  +5v    !
! 24  !   GND   !
! 25  !  +5v    !
! 26  !   GND   !
!-----!---------!

By anonymous

incognito ergo sum (116)

18-03-2012, 10:44

I present the Captain NTT keyboard adaptor from PAC for Philips Keyboard 8280/50/55
In this moment the keyboard works fine, but some keys are inverted: R=O, O=R etc.
In some days PAC give more info.

By jltursan

Prophet (2619)

18-03-2012, 11:12

Nice!, good work!