60hz mod for Sega Saturn - later motherboards?

I want to add a 60hz switch to a PAL Sega Saturn I've picked up. I found this guide online, which looks nice and easy:

http://www.retrocorner.net/index.php?Mods_/_repairs:Saturn_model_2_50/60hz_switch_-_page_2

As you can see it requires just 2 wires to be soldered near the battery. However I just opened up my Saturn and it has a different motherboard, this kind:



Which as you can see, does not have the "SW4" area of jumpers as per the guide. So does anybody know the easiest way of adding a 60hz switch to the version I have? I know there are much better ways of doing it such as the switchless region mod, but I have neither the equipment to flash the chip required or soldering skills to do it that way. So I just want the easiest possible way of adding a 60hz switch. Please let me know if you can help.

 

the only other way i think is to left a pin on the chip and hook it up to a switch that either connects it to ground or +5v, that's how i done mine, that and a region free bios. but some soldering skills are really required.

 

I can do basic soldering, but I really wouldn't be comfortable trying to solder to something as small as a chip leg. So there's no other way on later models?

 

alternative would be to get someone else to do it for you, or buy a NTSC saturn.

 

x

 

Thanks for the advice. I've already bought a single pole/single throw switch (which only has 2 connectors on the bottom) as that's all that was needed for the 'SW4' method. So do I need a new switch too?

 

If you are following those mod instructions, then yes - you need a SPDT switch.

 

x

 

Leaving input pins floating on CMOS chips is a little too evil for my tastes - sure, you can get away with it most of the time, but I'm old enough to have seen chips destroyed thorough latchup when pins were left open.

 

I tend to use on/off and a pull up resistor.

 

x

 

If fact, that's my preferred approach, too - having wires with a low impedance connection to VCC running aound the unit always seemed like asking for trouble. The ones I've modded recently don't use a switch at all - just a PIC wired into the reset circuit. I also prefer to lift pins than cut traces, just in case you ever find yourself wanting to revert the mod.

 

Sorry, missed context.

I do the PIC mod. If people want switches, then I use pullup and on/off.