SKYBUSTERS ONE CHIP IRD LOGGER MODIFICATION

First of all this mod has been tested and works a treat and secondly

Skybusters will not be held responsible for any damage so take your time!!!!


All you need is:
1 x MC1489 chip, which can usually be found on any old pc serial  communications card,
1 x female db9 connector
Telco cable or similar
A soldering Iron
Multi- meter for testing Dc voltage
Basic soldering skills is a great advantage!

Ok what next:

Take your MC1489 chip and solder the following coloured wires as shown in (DIAG.1)

PIN 1 Yellow
PIN 3 Green & White
PIN 4 Blue plus BLUE link wire to PIN 8
PIN 6 Green
PIN 7 Has 2 x Black wires connected
PIN 8 Blue Link wire from PIN 4
PIN 10 Blue & White
PIN 14 RED

(DIAG.1) 

Stage 2:

Once you have fitted all the wires to the chip its ready to be fitted in the box,

There are only 3 wires soldered to the main board smart card slot. See (DAIG.2)

So�.

Remove all the screws holding the outer case and remove the main board circuit board, this makes it lot easier to work on.

 Turn the main board upside down with the card slot opening facing you.

Connect the BLUE wire from PIN 4 of the mc1489 to the smart card slot I/O pin

Connect one of the BLACK wires from PIN 7 of the MC1489 to the GND pin of the smart card slot

Connect the YELLOW wire from PIN 1 of the MC1489 to the Reset pin of the smart card slot
DO NOT CONNECT THE RED WIRE AS DISPLAYED IN (DIAG 2)

For the RED wire you have to find an alternative +5V supply in the main board otherwise the IRD will detect the voltage drain on the card slot and shut the box down! This can easly be achieved using the multi meter but leave this connection till last so once the ird is put back together a connection point can easly found.

(DIAG.2)


Stage 3 (and final stage)
Ok�
All that�s left to do is add the new db9 female connector to the back of the ird casing, this was easily achieved by cutting a small hole in the back plate to house the new db9 connector, once the connector is fitted the remaining wires can be connected as follows: (DIAG.3)

Take the remaining BLACK wire connected to PIN 7 of the MC1489 and connect to PIN 5 of the Db9

Connect the GREEN & WHITE wire connected to PIN 3 of the MC1489 and connect to PIN 1 of the DB9

Connect the GREEN wire from PIN 6 of the MC1489 to PIN 2 of the DB9

Connect the BLUE & WHITE wire from PIN 10 of the MC1489 to PIN 3 of the DB9

(DIAG.3) (Not the best of Diags but im no photographer!)



just check all the connections are correct and put the ird back together again, find a suitable connection point for the RED wire and BINGO!

OH!! And don�t forget to tape the chip up in pvc tape to stop any shorting out!


above is a overall picture to demonstrate the correct positioning of the board notice the card in the card slot! Not the one above the date;

ok that�s it were done!!!!!

if you copied the above pictures then you should have a fully working 1 chip logger, just connect a cable to the connector you have just added and the other end to your pc�s comport and your done. 

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