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Diese Seite kann ich Euch zur CDTV noch empfehlen (woher ich auch diese Info habe) http://www.cdtv.org.uk
Introduction: This
text will show you how to add standard joystick/mouse ports
onto your CDTV at a very low cost. You will need to open up
your CDTV to perform this, but you will not need to cut or
solder to any components of your CDTV. This adaptor, once
you make it up, will consist of a DIP chip socket, two
ribbon cables, and the joystick ports themselves.
Installation consists of removing a socketed chip from your
CDTV motherboard, installing the adaptor's socket in its
place, and replacing the chip in the adaptor's socket. Parts
required:
Note
1:
For a more professional look (and easier construction)
the ribbon-cable (IDC) connectors are recommended. If you
cannot find these, you can use solder-cup type connectors,
but this means a bit more soldering work and a flimsier and
messier looking cable. Note
2:
Machine pin (round hole) sockets are greatly
recommended because they allow you to solder to the top of
the socket pins without affecting the socket's ability to be
seated in the CDTV motherboard's socket. If you are a
skilled solderer, you could use standard DIP sockets, but
this is not recommended. Construction: 1.
First, cut the ribbon cable into two equal 45 cm (18
inch) lengths. From each cable, remove the tenth conductor (the
one on the edge opposite the striped conductor). 2.
Next, put the DE-9 joystick connectors on one end of
each of the ribbon cables. The procedure will vary depending
on which type of connectors you have. Follow 2.1
if you have ribbon cable connectors, 2.2
if you have solder cup connectors. 1.
If you have IDC ribbon cable connectors, lift up the
end cap so you can slide the ribbon cable between it and the
connector, or if you cannot do that with the connectors you
have, remove the end cap to expose the crimping prongs.
Decide whether you want the ribbon up or down, and make up
both cables the same way by having the free end of the
ribbon cable coming out at the side of the connector with
either the wide or narrow side of the 'D' respectively.
Align the stripe end of the ribbon cable with the pin 1
prong (pin numbers can be read from the front of the
connector where you would normally plug in your mouse). The
end of the cable should be flush with the end of the
connector. Then place the end cap on top of the ribbon cable
if you removed it, and using a vise, clamp, or hammer,
squeeze the end cap onto the connector until the clips on
the side lock the connector together. Repeat the procedure
for the second ribbon cable. 2.
If you have solder cup connectors, split apart all of
the wires from one end of each ribbon cable so that they are
separated from the other wires for about 12 mm (1/2 inch).
Strip the insulation from each of these wires for about 2 mm
(1/16 inch) and tin them with solder. Solder the striped
wire to pin 1 of the connector (on the upper pins), the
second wire to pin 6 (on the lower pins), the third wire to
pin 2, etc. as shown in the DE-9
pin diagram.
When all 9 pins are soldered, repeat with the other ribbon
cable. 3. striped wire -> pin 1 4.
second wire -> pin 6 5.
third wire -> pin 2 6.
fourth wire -> pin 7 7.
fifth wire -> pin 3 8.
sixth wire -> pin 8 9.
seventh wire -> pin 4 10. eighth wire -> pin 9 11.
ninth
wire -> pin 5 Prepare
the first cable for the mouse port. Split apart all of the
wires from the remaining end of the ribbon cable so that
they are separated from the other wires for about 50 mm (2
inches). Cut off 25 mm (1 inch) of each wire except for the
fourth and sixth wires. Leave the fourth wire long, and cut
13 mm (1/2 inch) from the sixth wire. This will make the
connections to the DIP socket tidy. Then strip about 2 mm
(1/16 inch) of insulation from each wire, and tin with
solder. Solder each wire to the appropriate DIP socket pin,
as shown in the DIP
socket diagram.
Curl each wire around the top, thicker area of the DIP
socket pin and solder it using a minimum amount of solder.
Then cut off any excess wire. Keep the narrow part of the
pins clean of solder so that they can fit in the socket.
Ensure that the wires and solder do not touch other pins. 4.
striped wire -> pin 9 YB1 5.
second wire -> pin 5
FIR0 6.
third wire -> pin 8
XA1 7.
fourth wire -> pin 1
+5V 8.
fifth wire -> pin 7
YA1 9.
sixth wire -> pin 12
GND 10.
seventh wire -> pin 6 XB1 11. eighth wire -> pin 4 POT0Y 12.
ninth
wire -> pin 3 POT0X Prepare
the second cable for the joystick port. First, split apart
the ribbon cable for 75 mm (3 inches). Cut off 50 mm (2
inches) of each wire except for the fourth and sixth wires.
Again, leave the fourth wire long, and cut off about 37 mm
(1-1/2 inch) from the sixth wire. Strip the wires, tin with
solder, and solder the wires to the DIP socket. Note that
pin 12 (ground) will have wires from both joystick ports
attached to it. 13.
striped wire -> pin 20 YB2 14.
second wire -> pin 16 FIR1 15.
third wire -> pin 19
XA2 16.
fourth wire -> pin 30 +5V 17.
fifth wire -> pin 18
YA2 18.
sixth wire -> pin 12
GND 19.
seventh wire -> pin 17 XB2 20. eighth wire -> pin 15 POT1Y 21.
ninth
wire -> pin 14 POT1X Double-check
that the ribbon cable wires are connected to the correct
pins on the DE-9 connectors and the DIP socket, and that
there are no wires or solder bridges between adjacent pins.
Then proceed to the installation
step.
Pin
diagrams: BACK
(SOLDER CUP) VIEW OF MALE DE-9
\---------------------/ pins
should be numbered on the
front and back of the connector
TOP VIEW OF 40 PIN MACHINE PIN DIP SOCKET 40
39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
Note that the end with pin 1 has a notch in it PARTIAL
BOTTOM VIEW OF DIP SOCKET SHOWING WIRE CONNECTIONS
| | | | SIDE
VIEW OF 40 PIN MACHINE PIN DIP SOCKET
Socket holes (don't solder)
RIBBON CABLE CONNECTION DIAGRAM
9 conductor flat ribbon cable
To DE-9 connector pin #
To DE-9 connector pin #
(Mouse
port)
(Joystick port)
5 4 3
2 1
5 4 3
2 1
To
machine pin DIP socket pin # Installation: 1.
Remove all power to the CDTV by unplugging the power
cable. 2.
Carefully place your CDTV on a static-free mat, and
use a static-free wristband if you have one. If you don't
have these, at least do this work on a worktable in a room
without a rug after you have grounded yourself. 3.
Open the top cover by unscrewing the four screws in
the sides and the two screws in the top back of the CDTV.
Once the cover is open, do not touch any components unless
told to. Many of the components could be damaged by a static
charge, and even with power off, there could be dangerous
voltages present on some components. 4.
Find U75, a 40 pin DIP chip at the front centre of
the CDTV motherboard. The chip will be marked
"252609-02". It may have a different number after
the dash, but the first part of the number should be the
same. Carefully remove it by prying it up using a flat blade
screwdriver from the sides, making sure that you do not bend
the pins. Remember the orientation of this chip (the notch
on one end should be on the side closest to the right of the
CDTV). 5.
Carefully plug the socket of the adaptor cable into
the socket you just removed the chip from. Pin 1 of the
adaptor socket should be towards the right, so that the
ribbon cables exit towards the back of the CDTV. 6.
Replace U75 in the adaptor's socket, keeping it in
the same orientation it was when you removed it. Make sure
that it is firmly seated and that none of the pins are bent
out of the socket. 7.
Route the joystick adaptor cables to a suitable
position outside your CDTV. If you do not have a SCSI-TV,
then you can route the cables out the expansion connector
space. To do this, remove the expansion slot cover by
removing the two screws holding it in place, and temporarily
remove the ribbon cable at the back left of the CDTV. Now
route the two joystick cables through the hole at the back
left of the chassis, behind the CD-ROM drive, then out the
expansion hole. For a simple strain relief, arrange the
connectors so that the ribbon cables exit the top of the
expansion hole, then bolt the expansion plate back on so
that the top of it holds the ribbon cables in place. If you
want to make a professional looking system, then cut or
punch out DE-9 holes in the expansion plate and mount the
joystick connectors on it. Remember to replace the ribbon
cable at the back left of the CDTV when you are finished. 8.
Replace the top cover of the CDTV, securing the four
screws on the sides and the two on the back. Notes: 1.
This adaptor cable operates just as if you attached a
'Y' cable to the joystick/mouse ports of a normal Amiga.
Thus, attaching a mouse to the mouse port may have
unexpected effects, since you are effectively putting it and
the CDTV remote's 'infrared mouse' in parallel. Because of
the way a mouse works, two mice normally cannot share the
same port. If you wish to use the CDTV remote in mouse mode,
you must remove the mouse from the mouse port. If you wish
to use a mouse in the mouse port, you must not move the
mouse from the CDTV remote while it is in mouse mode. If you
wish to permanently use the mouse in the mouse port, and
disable the CDTV infrared controller's mouse mode, then
remove U75, bend up pins 6, 7, 8, and 9, and replace it back
in the adaptor's socket. This will disable the remote's
movements in mouse mode only, while still keeping its
joystick functions and mouse buttons intact. 2.
If you wish to use an analog joystick with this
adaptor, you may have to remove U75, bend up pins 14 and 15,
and replace it in the adaptor's socket. |