Author Topic: 681G G remote keyboard interface schematic  (Read 1928 times)

RoyMixer

  • Jr. Member
  • **
  • Posts: 99
  • Karma: +1/-0
    • NYC
    • Roy Hendrickson, Mixer/Engineer/Producer
681G G remote keyboard interface schematic
« on: February 02, 2020, 04:35:53 PM »
Hi All,

I wondering if anyone has schematic or any info about 681G G remote keyboard interface.

all I have is attached here.

Thanks in advance!
R

jimlfixit

  • Global Moderator
  • Sr. Member
  • *****
  • Posts: 356
  • Karma: +44/-0
    • Maidenhead, Bucks, UK
Re: 681G G remote keyboard interface schematic
« Reply #1 on: February 02, 2020, 06:09:37 PM »
Hi Roymixer

I built several of these Keyboard splitter boxes for SSL when I worked there (1980-87) and know about the wiring although the 6 way Lemo connector shown on your diagram was probably a later addition.

Not sure what you need to know exactly but let us know so we can help.

Philn

  • Newbie
  • *
  • Posts: 3
  • Karma: +0/-0
    • Vashon WA USA
Re: 681G G remote keyboard interface schematic
« Reply #2 on: February 03, 2020, 10:37:20 PM »
Hi Roy,
You have all the documentation that there is as far as I know.
The serial/parallel interface was made by Alphameric Keyboards LTD. in the UK who are long gone.
I have a couple of complete G remote k/boards and interfaces with all the cables if you are interested.

RoyMixer

  • Jr. Member
  • **
  • Posts: 99
  • Karma: +1/-0
    • NYC
    • Roy Hendrickson, Mixer/Engineer/Producer
Re: 681G G remote keyboard interface schematic
« Reply #3 on: February 04, 2020, 01:06:29 PM »
Hi Jim and Phil.

I have a smaller e-series size keyboard in my G+ -  I was  thinking of building a small panel with some macros that would generate the parallel data (keyboard keystokes) using a micro controller.
so  I am investigating how ssl had two keyboards talking on the same parallel keyboard input.

R

Philn

  • Newbie
  • *
  • Posts: 3
  • Karma: +0/-0
    • Vashon WA USA
Re: 681G G remote keyboard interface schematic
« Reply #4 on: February 04, 2020, 05:37:55 PM »
Both "E" or "G" remote keyboards just connect in parallel to the keyboard ribbon to/from the computer.
The G has the interface in a separate box that lives under the console and connects to the remote keyboard via the Lemo cable so that you don't have a cumbersome 50 way ribbon attached.
You can use "E"or "G" remote keyboards with either "E"or "G" integral keyboards.
Someone was selling an E remote keyboard on eBay a while ago.

RoyMixer

  • Jr. Member
  • **
  • Posts: 99
  • Karma: +1/-0
    • NYC
    • Roy Hendrickson, Mixer/Engineer/Producer
Re: 681G G remote keyboard interface schematic
« Reply #5 on: February 05, 2020, 03:46:34 AM »
Thanks Phil!!!