today I done the switchless mod for a PAL Mainboard.
Its the third different mainboard i looked at.

Mainboard PC BD SATURN MAIN VA0 Pal

At the solder Side you will find some Jumper from JP 6 to JP 13

cut the three circuits at Jumper JP7,JP10,JP12 for Language preparation

remove Jumper 2 (50Hz, 60Hz switching)

Wire PIC like shown at the picture:

For make the Reset Button work, you have to cut this circuit on the parts site of the mainboard:

Remove the LED PCB. It holds a 5x2mm square LED.

Replace it by a Duo LED and use some glue

Left red wire, middle GROUND (take it from the mainboard), right green wire.

This entry was posted on Mittwoch, April 28th, 2010 at 17:48 and is filed under Sega, Switchless Mods. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.