Yet another Genesis/Megadrive mod - Video Selection board and Switchless Mod

Hi, Sorry for the lake of updates.

Yes, when you switch to NTSC (manually or with a switchless mod) it automatically uses the 3.57Mhz Crystal, and when you switch to PAL it uses the 4.43Mhz. It the same function than the big board for the Genesis 1, but this one has a 74HC04 as a Crystal driver for the Genesis 2 and works without remote.
I build those boards to install them with my switchless board on two Genesis 2 I had in spare.

 

Here's the pics of the videoboard installed in a Genesis 2 with my switchless mod:


Closer pic:


Intresting thing, with the Fujitsu MB3514, my board doesn't want to switch from NTSC Crystal to Pal Crystal (got black/white). It does work on cool boot, but not on switch/reset. I don't have this problem with the Samsung KA2195D. I have to try with a Sony CXA1145m.

Anyway my mod is "Genesis 1 and 2" proof

 

Small update: I've finally uploaded a video for showing the result and edited the 2nd post with links and files.
Please don't laught too hard on my accent. You can activate the subtitles if you don't understand what I'm saying.
French subs will come shortly.

[video=youtube_share;mOY_44WACEU]http://youtu.be/mOY_44WACEU[/video]

Now I'm working on video and a full detail post on the video board.

 

hi there.can you please help me?i have the same model(MD1 VA3) and i like to install a PIC but i dont know the points to weld and cut,can you please tell me.tks