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NES-SNES-N64 system (looking for advice)

  • 03-11-2013 9:02am
    #1
    off
    Registered Users, Registered Users 2 Posts: 2 ✭


    Hello, im making a NES-SNES-N64-in-one-console.
    Since I am not very skilled with electronics Im keeping it simple with two adapters. And a switch or two to change system. I probably have that part figgured out. But I need some advice how to connect the audio/video signals to one outlet.

    The idea is to use composite signals from all systems. Please tell me if it will work:
    12av.jpg

    NES only has mono audio but I can just connect it to both audio outlets, right? Signal strong enough?
    The idea with the diodes is to prevent electricity going into the PCBs for the two units not beeing used, at least prevent one direction since I have to connect the ground as well.
    Do I need the diodes at all? If I do what type of voltage/amp should they have?
    Can I connect ground to only one of the PCB, or do I need all three?

    Is there a better way to do it? Keeping in mind it has to be easy.
    Please tell me if you know of a multi console system tutorial that could help.


Comments

  • #2
    Myrddin
    Closed Accounts Posts: 33,733 ✭✭✭✭Myrddin


    Might be worth shooting off a pm to this user, he built the mother of all integrated setups - http://www.boards.ie/vbulletin/showthread.php?t=2057035969


  • #3
    witnessmenow
    Registered Users, Registered Users 2 Posts: 7,264 ✭✭✭witnessmenow


    Are you planning on putting all the consoles in the one enclosure? Or are you just looking for an easy way to connect the 3 consoles to the TV?

    There are 3 to 1 Av converters for about €5 that would do that job. http://dx.com/p/3-port-av-audio-video-signal-switch-10253

    You can get different colour ones, I got a blue one anyways. ebay should have them too.

    One thing you need to look out for is when you are connecting the nes up, there should be no problem hooking the mono up to both L&R, but make sure you dont have it bridged for the other consoles. I know the sketch you have is rough, but all the consoles would be outputting both channels on both the L and R line as they are bridged.


  • #4
    off
    Registered Users, Registered Users 2 Posts: 2 ✭off


    Thats one way, better than diodes. But I would end upp using only the switch basically. Now im thinking maybe try to do it with relays to reduce mechanical switches. Its a bit above my skill level but ill give it a shot.

    The three systems will end up in one case. The original adapter for NES and SNES is 1,3A, do you think I can run the SNES on only 0,8A using the 12V 0,8A line on N64 power supply (regulating it to either 5 or 9 volts first)?
    The NES should be fine as I understand it.

    I found this 12V relay, can the coil take 0,8A or will I fry this thing? Dont understand how I can tell.
    12V relay


  • #5
    KeRbDoG
    Registered Users, Registered Users 2 Posts: 4,335 ✭✭✭KeRbDoG


    Just as a note, I tried the diode method many years ago in Ciders house with a bunch of his consoles and it didn't work so well. The diodes seemed to overly effect the signals. Never bothered to do more digging, ended up just creating a bus style setup with many inputs - did just fine for awhile :)
    The switcher (or a series of auto switchers) would be ideal


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