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Hello.
I have been looking at numerous tutorials of 50hz 60hz mods for the SMS 1 and 2, because i want to do it for my japanese SMS. The thing is that all those tutorials are for american and europead consoles, and the PCB of the japanese SMS is a little diferent.
Does anyone know of a site with a tutorial for the japanese system, or can help me by telling me how to do it?
Thanks in advance.

Sorry to bump this so soon, but i have googled for info on modding my japanese Master system to 50hz the past 2 or 3 days, and i really cant find anything about it.
Has anyone here tried to do it?

All comes down to whether one VDP pin is tied to GND or VCC.

The pin in question is 57 (at least on 315-5124)

Thank you very much TmEE!, i am gonna try it tonight.

Just finished the mod, but something unexpected happened... the PAL games are playing fine, graphical glitches are gone and music plays slower like its supposed to, but the games are in black and white. My tv is PAL and NTSC, my japanese, american and european consoles all play in color. Thats including my CDTV, CD32 and my deceased PAL Master System.
I dont understand, this is weird...any ideas guys?

You are feeding the TV NTSC-50 which it may not support. Go to RGB if possible and there is no encoding to worry about.

Arghh, darn it!, this looks beyond my capabilities. I will just fix my PAL SMS or get another one to play my PAL games.
Thanks guys.

Author	Message
saturndual32 Joined: 30 Jun 2006 Posts: 27	Japanese SMS 50hz 60hz mod Posted: Sun Apr 28, 2013 6:17 am
saturndual32 Joined: 30 Jun 2006 Posts: 27	Hello. I have been looking at numerous tutorials of 50hz 60hz mods for the SMS 1 and 2, because i want to do it for my japanese SMS. The thing is that all those tutorials are for american and europead consoles, and the PCB of the japanese SMS is a little diferent. Does anyone know of a site with a tutorial for the japanese system, or can help me by telling me how to do it? Thanks in advance.

saturndual32 Joined: 30 Jun 2006 Posts: 27	Posted: Wed May 01, 2013 4:04 am
saturndual32 Joined: 30 Jun 2006 Posts: 27	Sorry to bump this so soon, but i have googled for info on modding my japanese Master system to 50hz the past 2 or 3 days, and i really cant find anything about it. Has anyone here tried to do it?

TmEE Joined: 31 Oct 2007 Posts: 853 Location: Estonia, Rapla city	Posted: Wed May 01, 2013 5:59 pm
	All comes down to whether one VDP pin is tied to GND or VCC. The pin in question is 57 (at least on 315-5124)

saturndual32 Joined: 30 Jun 2006 Posts: 27	Posted: Wed May 01, 2013 7:57 pm
saturndual32 Joined: 30 Jun 2006 Posts: 27	Thank you very much TmEE!, i am gonna try it tonight.

saturndual32 Joined: 30 Jun 2006 Posts: 27	Posted: Thu May 02, 2013 4:36 am
saturndual32 Joined: 30 Jun 2006 Posts: 27	Just finished the mod, but something unexpected happened... the PAL games are playing fine, graphical glitches are gone and music plays slower like its supposed to, but the games are in black and white. My tv is PAL and NTSC, my japanese, american and european consoles all play in color. Thats including my CDTV, CD32 and my deceased PAL Master System. I dont understand, this is weird...any ideas guys?

Maxim Site Admin Joined: 19 Oct 1999 Posts: 14745 Location: London	Posted: Thu May 02, 2013 7:00 am
	You are feeding the TV NTSC-50 which it may not support. Go to RGB if possible and there is no encoding to worry about.

saturndual32 Joined: 30 Jun 2006 Posts: 27	Posted: Thu May 02, 2013 7:40 pm
saturndual32 Joined: 30 Jun 2006 Posts: 27	Arghh, darn it!, this looks beyond my capabilities. I will just fix my PAL SMS or get another one to play my PAL games. Thanks guys.

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