Dual Frequency Oscillator (DFO) + Switchless mod for Sega Genesis/Megadrive

This is PCB wich replace the Main Oscillator on the Sega Genesis/Megadrive model 1 and 2.

This was not tested on Model 3

This mod regroup on a same design:

  • The Dual Frequency Oscillator (DFO) with frequencies for both PAL and NTSC
  • The Switchless mod (with DForce3000 code) which cycles between USA/JAP/EU region for video signal and language settings and RGB led support.

The kit contains:

  • A PCB already programmed with Sega Genesis/Megadrive frequency (you don't need the programmer)
  • A PCB for the RGB LED  (they will be populated with proper components, pics are here as exemple). You need to select the model of your console.

Note: There's a jumper underneath the PCB, next to the PIC: This is to select "Active-high" or "Active-low" reset depending of your console.

Exemple: MK1 VA4 is active-high, M5 PAL (no marking) is active-low, MK2 V1.8 is active-low, etc.

Basically, if there's a 510k ohms resistor (should be R2) between the reset switch of your console and ground, your console is Active High and need the jumper to be soldered)

Here's a video of my installation on my own console.

Write a review

Please login or register to review

Dual Frequency Oscillator (DFO) + switchless mods for Sega Genesis/Megadrive

  • Product Code: DFOSwitchless
  • Availability: 4
  • USD $25.00

  • Ex Tax: USD $25.00

Available Options

Related Products

Dual Frequency Oscillator (DFO) USB programmer

Dual Frequency Oscillator (DFO) USB programmer

Dual Frequency Oscillator (DFO) USB programmerProgram your own Dual Frequency Oscillator with this d..

USD $28.00 Ex Tax: USD $28.00

Tags: DFO, Dual Frequency Oscillator, Megadrive, Sega, Genesis, Switchless,