Turn off the computer power switch and unplug the power connector.
Open the top cover of the computer case.
![Opening IIgs cover](images/opening_iigs.jpg)
Before continuing, it is recommended that your remove any static electricity from you body by "grounding" yourself. To do this, touch the metal part of any electrical appliance that uses a grounded/earthed electrical plug (the outside of a metal surge protector, for example).
## Remove rear slot cover
# Remove rear slot cover
Find an unused DB-25 slot cover. The DB-25 slots are the longest, and a usable slot will be the same length as the slot already used for the external connector of your SCSI card.
@ -45,17 +45,23 @@ To remove the cover, grasp the metal tab on the inside of the slot and turn coun
Keep both the metal tab and the plastic cover for later re-use as these parts are very hard to replace.
Find the existing connector for the SCSI card on the rear of the computer. It may look similar to connector for a serial card, so make sure you find the correct connector. Using a small socket or needle-nose pliers, loosen the two screw mounts on either end of the connector and remove them. The DB-25 connector should now be freed.
Find your SCSI card (typically in slot #7) and remove it by pulling it firmly upward.
IMPORTANT: While removing the card, ensure the cable for the DB-25 connector (see previous step) is kept away from the metal tabs on the rear of the computer case. These tabs can be **sharp** and can damage the cable.
With the SCSI card out of the machine, look at the long rectangular connection where the DB-25 cable connects to the SCSI card (known as an "IDC connector"). Note where "Pin 1" is oriented. Pin 1 is usually marked by a red stripe.
@ -67,13 +73,17 @@ When connecting the cable, make sure that **Pin 1** is correctly aligned. On the
IMPORTANT: Again, *make sure* pin 1 is correctly aligned.
## Attach ribbon cable
![DB-25 connected to BlueGS](images/db25_connected_to_bluegs.jpg)
# Attach ribbon cable
Take the included ribbon cable and attach one end to BlueGS. Use either J1 or J2, whichever connector is not used by the DB-25 connector in the previous step. As before, ensure that Pin 1 is correctly aligned.
Then, connect the other end of the ribbon cable to the SCSI card. Plug it in so that Pin 1 of the ribbon cable is in the same place where Pin 1 of the DB-25 cable was previously.
## Install BlueGS in rear slot
![DB-25 and ribbon cable connected to BlueGS](images/both_cables_connected_to_bluegs.jpg)
# Install BlueGS in rear slot
Place BlueGS so the edge with the MicroSD slot, LEDs, and switch is inside one of the open slots on the rear of the computer. It is recommended to orient BlueGS so that the USB port is pointed upwards.
@ -81,22 +91,30 @@ Place the included slot cover on the *outside* of the case over the appropriate
Once the screws are correctly threaded, gently tighten them down with a screwdriver until BlueGS is firmly attached to the slot.
## Reinstall DB-25 connector in rear slot
![BlueGS in IIgs rear slot](images/bluegs_slot_cover_installation_iigs.jpg)
# Reinstall DB-25 connector in rear slot
In the remaining open slot, reinstall the DB-25 connector.
## Reinstall SCSI card and close computer case
![Reinstall DB-25 connector in IIgs rear slot](images/reinstall_db25_iigs.jpg)
# Reinstall SCSI card and close computer case
Reinstall the SCSI card in the correct slot and replace the cover on the computer.
## Insert MicroSD card, check termination
![Closing IIgs case](images/closing_iigs.jpg)
# Insert MicroSD card, check termination
Take a MicroSD card that has been previously prepared (instruction [here](https://github.com/erichelgeson/BlueSCSI/wiki/Usage)) and insert it in to the slot on the rear.
If you have no other SCSI devices connected to your computer, the "Termination" switch should be set to "On".
## Power on and enjoy!
# Power on and enjoy!
Reconnect all necessary cables, turn on the power and enjoy.
The "Power" LED should light the moment the computer turns on, and the "ACT" LED should light whenever the emulated SCSI drive is being read or written.
![Show Power and Activity LEDs on BlueGS installed in IIgs](images/bluegs_lights_iigs.jpg)