home *** CD-ROM | disk | FTP | other *** search
- Path: nyssa.swt.edu!ez13942
- From: ez13942@nyssa.swt.edu (Bo)
- Newsgroups: comp.sys.cbm
- Subject: Re: Seperate C64 Keyboard from CPU
- Date: 18 Feb 96 13:55:29 CST
- Organization: Southwest Texas State University
- Message-ID: <1996Feb18.135529@nyssa.swt.edu>
- References: <JXNLa81.cindysimms@delphi.com>
- NNTP-Posting-Host: nyssa.swt.edu
-
- In article <JXNLa81.cindysimms@delphi.com>, J. E. Sears <cindysimms@delphi.com> writes:
- > Seperate your C64 keyboard from the CPU.
- >
- > All parts listed here are from Digi-Key 1-800-344-4539.
- > You will need the following list of parts: Price:
- > (1) one straight lead header # CHS4OG-ND $ 2.56
- > (2) one .100 Flat flex cable assembly ( 6 inches)
- > # A9BAG-2006-ND $ 9.03
- > (3) one .100 Flat flex cable # A9AAT-2006F-ND (6 inches) $ 5.28
- > (4) one 25 pin interface extention (2 meter male to male)
- > # AE1010-ND $ 6.93
- > (5) two Solder cup type D-sub connector 25 pins (females)
- > # A2049-ND $ 4.50
- > --------
- > Total $ 28.30
- > Instructions:
- > When you open the C64 (normally 3 screws) you will see how the keyboard is
- > plugged into the motherboard. There is a 20 pin ribbon type plug that
- > goes into a male fitting on the board with 19 pins ( missing one is a key
- > to prevent plugging in the keyboard backwards).
- > Carefully unplug that plug (lift at the ends and gently rock as you lift).
- > Solder the straight lead header (1) to the Flat flex cable (3). ( both
- > will have the same spacing)
- > Solder the other end of the Flat flex cable (3) to a 25 pin female connector
- > (5). The straight header (1) plugs into the female plug on the keyboard
- > connector ( you will need to cut or bend pin number 2 for it to fit).
- > This will give you a 25 pin D-sub Female connector for the ksyboard.
- > The keyboard assembly is ready to put back in to the computer case.
- > ( be sure to remove the computer board first and decide where to put it.)
- > You have several choices as to where you would like the 25 pin female
- > connector to exit the case (it has lots of holes).
- >
- > Now take the Flat cable assembly (2) and solder the other 25 pin female
- > connector (5) to it. BE SURE THAT THE PINS ON THE TWO 25 pin D-sub
- > connectors will match. ( the 25 pin connectors I have seen are numbered)
- > Plug the Flat cable asssembly into the motherboard and the computer
- > portion is ready to install in your case. ( I used an old C64 case for this)
- > You can put it most any where. Built one, use an old IBM tower whatever.
- > Again you have some choices to make on where the 25pin D-sub will exit
- > but less than the keyboard as the cable is only 6" long.
- >
- > I did not mention the little power indicator light. You will have 5 extra
- > leads on the D-sub if you want to connect the light. Having the light
- > come on is a nice touch. You can just solder a couple of wires from
- > the motherboard to do this.
- >
- > For joysticks and mice you will need 2 9 pin D-sub cables. The cheapest
- > are Sega joystick extention cables. The 9 pin cables are common as dirt
- > so you will have no problem finding what you want. (Radio Shack, ect.)
- >
- > You also may not want 2 meters of cord between you keyboard and computer
- > so you can look for the length you want (male on both ends). I have
- > a rig with 2 cables connected to a total of 10 feet (great for games)
- >
- > If I ever get a case designed I will offer a "kit" for those that
- > don't have time to solder about 60 connections. Open to ideas
- > on how to improve this and what to use for inexpensive cases that would
- > allow access to CMD add ons like the Super CPU and RamLinks.
- >
- > The main reason for this design is to make using the C64 easier by
- > seperating the computer and keyboard (not a new idea) LoadStar has
- > the same thing in the issue #140 with simple ribbon cable. My design
- > ,just to toot my SID chip, is much more flexable and LOOKS better too.
- >
- > I'd love e-mail from those that complete this project. Let me know how
- > it goes.
-
- Thanks to J.E. Sears for posting this. Like the collectors of old cars
- who spend all their time, love, and money making them the best they can be
- (but who never seem to get the guff we do eh?), we Commodore folk need
- innovative folks making new strides for our beloved machines.
-
- This will be a great help for those (like me) looking to get the
- C64 in a PC case with a seperable keyboard.
-
- - Bo
-