" MSD DRIVE 8/9 MODIFICATION " " This file explains the modification I "used to switch a MSD single drive from "drive 8 to drive 9. Some MSD single "drives WILL NOT accept the normal "software select commands. " " I WOULD NOT advise making this "modification UNTIL your warranty has "expired! " " " Please follow the steps outlined "below. " " DO NOT SUBSTITUTE for the cable type "specified!!!!!!!!! " " Make Sure the POWER IS OFF and the "Drive is UNPLUGGED. " "1) Remove the six screws holding the "cover on the drive housing. Put them "aside, do not loose them! " "2) Examine the circuit board, holding "the drive with the circuit board "towards the back of the unit. " "3) Find the two (2) blue jumpers on the "top of the board. Remove the TOP one. " "4) Examine the drive cover and see "where the cover is in relation to the "jumpers. " "5) Drill a hole in the top of the drive "and insert a double pole double throw "switch. When drilling be sure to drill "the cover FAR AWAY (next room) from the "open drive assembly. " "6) Now, take a short piece of wire (10 "guage) and close the contacts on one "side of the switch effectively closing "the circuit on that side. Leave the "other side open. " "NOTE: YOU must use the exact type cable "specified for this next step !!! " "7) You need a 1 foot piece of 2 "conductor cable, with each wire "shileded and a ground shield. Solder "one wire to each side of the middle of "the double pole switch after you strip "the wire on both ends. Check with a "multi-meter to be sure you have not "created a short. Also check to see that "when the switch is thrown, you have a a "closed circuit on one side and an open "circuit on the other side. " "8) Solder one wire to each of the pins, "from where you removed the jumper. BE "VERY CAREFULL not to DRIP solder "ANYWHERE when doing this soldering. " "9) Now connect all the shield cables "together and solder them. Now solder "another piece of shileded cable to this "and run it out the back of the drive. " "10) Replace the cover and replace all "screws removed. " "11) Connect the shielded cable to a "screw in the back of the drive. " " " You are now finished. When the switch "is thrown one way the drive number is "8. In the other position the drive is "9. " " While I know this works fine on my "drive, I and Software Center accept no "responsibility for any damage you might "cause, if you don't do this properly. "We cannot be held liable for any "damages that might occur. " " You make this modification at your "own risk. " " This file was provided, to inform you "that this can be done. " " We do not suggest that you do this. "You must make up your mind in regards "to this modification!
Amiga7878