The Master Boy - Sega master system portable

mothatrucka · Post by **mothatrucka** » Sat Jul 26, 2008 11:03 am

phantom92opera wrote:http://www.gamesx.com/avpinouts/genesisav.htm

The Genesis is NOT the Master System.

phantom92opera · Post by **phantom92opera** » Sat Jul 26, 2008 1:38 pm

did u even click on the link..? they have the same pinout

if thats not good enof heres another
http://members.optushome.com.au/eviltim ... .htm#mega2

sam_thornley · Post by **sam_thornley** » Tue Jul 29, 2008 6:34 pm

Sorry about late reply, i havnt been on these forums for a wile. But now i'm back.

Anyway, thanks for more comments and questions.

For bacteria and for anyone else who needs it:

The web page i used to get RGB and audio from the master system 2.

http://www.mmmonkey.co.uk/console/sega/sms2-av.htm

Scroll down past half way and it explians where to get RGB and Audio from the board.

cmon:

I took 5v from the master systems 7805 to switch the psone screen in to RGB mode.

c_mon · Post by **c_mon** » Wed Jul 30, 2008 5:22 am

sam_thornley wrote:Sorry about late reply, i havnt been on these forums for a wile. But now i'm back.

Anyway, thanks for more comments and questions.

For bacteria and for anyone else who needs it:

The web page i used to get RGB and audio from the master system 2.

http://www.mmmonkey.co.uk/console/sega/sms2-av.htm

Scroll down past half way and it explians where to get RGB and Audio from the board.

cmon:

I took 5v from the master systems 7805 to switch the psone screen in to RGB mode.

Did you also use those mentioned capacitors in your portable? Does PSOne screen need them?

bacteria · Post by **bacteria** » Wed Jul 30, 2008 8:19 am

The Amstrad GX4000 seems to use an 8 pin din socket too. It will be interesting to mod that system.

sam_thornley · Post by **sam_thornley** » Wed Jul 30, 2008 6:15 pm

At first I tried 220uF caps on each of the RGB lines, but after about 10 minutes the picture would get darker and darker.

So i connected the RGB lines directly and the picture was fine, sharp and bright. The PSone screen has its own line caps onboard because it was designed to connect directly to the PSone.

If anyone wants a diagram on how to conect the psone screen to a master system 2 board (RGB+audio) let me know. As i could do one if needed.

c_mon · Post by **c_mon** » Fri Aug 01, 2008 12:26 pm

sam_thornley wrote:At first I tried 220uF caps on each of the RGB lines, but after about 10 minutes the picture would get darker and darker. So i connected the RGB lines directly and the picture was fine, sharp and bright. The PSone screen has its own line caps onboard because it was designed to connect directly to the PSone.

If anyone wants a diagram on how to conect the psone screen to a master system 2 board (RGB+audio) let me know. As i could do one if needed.

Please do it. That'd be appreciated. Thanks in advance...

sam_thornley · Post by **sam_thornley** » Sat Aug 02, 2008 9:33 am

ok, i'm working on a diagram now. Will be posted here in a day or two.

sam_thornley · Post by **sam_thornley** » Mon Aug 04, 2008 8:38 am

Here's the diagram for conecting a master system 2 to a psone screen:

A fullsize image of the underside of the Sony CXA1145:

c_mon · Post by **c_mon** » Tue Aug 05, 2008 9:29 am

Thanks for this info. That helped a lot...