PC Engine Schematics needed

[silverfox0786]

Hey guys

im looking for help, info or schematics for a PC Engine

I have successfully RGB modded my spare machine and was curious about a few things as i wanted to do more with it

First of all the Expansion connector

i see Vin pins and they represent power input where the switch is bypassed so ideal for making a jamma rig and it turns on as the cab comes on
What i want to know is do i supply it 5V or something else (to me it looks like 5v)

The other thing i wanted to ask is the Switch Circuit, i wanted to find the switch point so i can attach a power LED to the machine.

Any help would be appreciated

Thanks

 

[The Last Bandit]

Would be alot simpler to make up a cable with a 7809 to regulate the Jamma 12V and just plug the output into the PCE leaving the switch on ?

 

[silverfox0786]

thats my backup plan, i did that with a megadrive

using the Vin point was how the expansion PCBs where used for the cabs running parasol stars and wanted the same thing

 

[rcantor77]

What are you after Sarj... I have full board schematics of the PC Engine.

 

[silverfox0786]

core Grafx II ones please

 

[rcantor77]

Copper Schematic:


Components:

 

[silverfox0786]

WOW Roger thats awesome stuff

do you have the component side as well ?

silverfox07862016-03-15 17:48:26

 

[grobda]

pedants corner; thats a layout not a schematic

 

[silverfox0786]

pedants corner; thats a layout not a schematic

your right but i can still work with it as long as i have both sides as it still works out showing me what i need with the silkscreen present