Xbox 360 Downgrader Hardware

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The downgrader hardware can be built in a day or two from easy-to-find parts. Infectus is rumored to released a daughter board that will interface with the Infectus chip for those not into building the hardware themself.

Parts

  • 1x 4831384 Prototyping board 100x160 mm
  • 1x 7319874 PIC16F876A-I/SP DIL28
  • 2x 7301500 LM339N quad comparator DIL14
  • 1x 7332323 MAX3232CPE RS232 transeiver DIL16
  • 1x 7350317 74HC08N 4x 2-in AND gate DIL14
  • 1x 7470248 20.00MHz resonator 3-pin
  • 1x 4408407 D-Sub 9-pin Space-Save
  • 2x 4408449 Locknut D-Sub
  • 1x 2553071 Extension cable 9-pin D-Sub
  • 1x 3565751 Keyboard switch 4.5 mm
  • 3x 4813564 IC-socket 14-pin DIL
  • 1x 4813580 IC-socket 16-pin DIL
  • 1x 4813721 IC-socket 28-pin DIL
  • 6x 6565659 Ceramic capacitor 0,1uF/50V
  • 21x 6010490 Resistor 1,0k ohm 1/4W
  • 1x 6010573 Resistor 4,7k ohm 1/4W
  • 1x 6010615 Resistor 10k ohm 1/4W
  • 1x 4310827 IDC Connector female plug 16-pin
  • 1x 4311627 IDC Connector male socket 16-pin
  • 1x 5566054 Ribbon cable grey 16-core 1 meter
  • 1x 4205209 DC-plug 1.3 mm
  • 1x 4205407 DC-jack 1.3 mm
  • 1x 7503857 EL383GD LED 5 mm green
  • 1x 7503899 EL383YD LED 5 mm yellow
  • 1x 4370334 Pin header 2.54 mm 2x20-pins
  • 4x 4371102 Jumper blue open

Schematics

There are two good schematics, one from the creator of the downgrader, robinsod, and one from an enthusiast, rufusb.

Downgrader Hardware

Top side:

Downgrader hardware top.jpg

Bottom side:

Downgrader hardware bottom.jpg

Instructions

Bottom side (click for full resolution):

Image:Xbox360 downgrader diagram bottom.jpg

Top side (click for full resolution):

Image:Xbox360 downgrader diagram top.jpg