N64 RGB modding

Discussion in 'General Gaming' started by Dot50Cal, Jul 9, 2007.

  1. Dot50Cal

    Dot50Cal Moderator

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    Hi guys, Ive been looking into this and it seems theres a number of conflicting reports. Some sites say one method is crap, while another is great, some sites report that certain models wont work..etc. I was curious if you guys could help me figure out if mine is mod-able? Heres a high res shot from the U1 chip. It seems mine is a slight revision from the standard? I cant really find any info on this and I'd like to have the best possible RGB mod applied, or if thats not possible on my system get one that is. Thanks!

    http://dot50cal.the-horror.com/SNB14574.JPG

    My U1 chip says
    AVDC-NUS
    BU9805FS
    841 113
     
    Last edited: Jul 9, 2007
  2. marshallh

    marshallh N64 Coder

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  3. Dr_Slump

    Dr_Slump Intrepid Member

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    If can somebody modify a N64 for me, please PM. (After an accident I swore to never solder again).
     
  4. Dot50Cal

    Dot50Cal Moderator

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    Checking around it seems that going to that chip isnt the best way, but using the R8, R9, and R10 on the underside and then bridging them to a resistor is the best way. No need for a booster then apparently. Problem is I have no R8,9 or 10. Damnit :\ I need a new N64!
     
  5. ConsoleFun

    ConsoleFun Gutsy Member

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    If you want to get a regular VDC-NUS N64 you might find this helpful:

    NTSC:
    NUS-001(USA) with serialnumber NS11xxxxxxx or below
    NUS-001(JPN) with serialnumber NUJ11xxxxxx or below

    PAL:
    NUS-001(FRA) with serialnumber NUP11xxxxxx or below
     
  6. ConsoleFun

    ConsoleFun Gutsy Member

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    Try without a booster first, just in case that should work for you.

    If I were to do it again I would have built mmmonkey's booster (again), but installed it in the N64 (via R8, R9 and R10) rather than in the SCART plug. I used NTE229 transistors last time, since I didn't have any BF494s. Also got a better picture with 220uF caps then with 100uF. Just my two cents....
     
    Last edited: Jul 9, 2007
  7. Dot50Cal

    Dot50Cal Moderator

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    Thanks, that helps a bunch :)

    Do you have any closeup diagrams of what you just described?
     
  8. retro

    retro Resigned from mod duty 15 March 2018

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    Does Greece run PAL consoles? AFAIK, you can't RGB mod a PAL N64. If someone would like to tell me I'm wrong, this would of course be great news!!
     
  9. Barc0de

    Barc0de Mythical Member from Time Immemorial

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    Dr_Slump can get an NTSC console as well. He's got quite a few multi-system TVs!
     
  10. Dr_Slump

    Dr_Slump Intrepid Member

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    I have 7 N64s, one of them is an American NTSC NS11...
    The problem is that I'll never ever solder again. I want my fingers and I'm clumsy. Period.
     
  11. PS_Monitor

    PS_Monitor Guest

    I have an original Japanese N64 and it was modded with the RGB. My friend did it years ago and made me an RGB cable for a Commodore 1084S monitor. Suffice to say I never use the N64 or cable anymore. Yes, RGB makes a huge difference.
     
  12. ConsoleFun

    ConsoleFun Gutsy Member

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    Sure you can, but it needs to be a NUS-001(FRA) if you want to use the VDC-NUS mod. For everything else you need to replace the video DAC. If anyone is looking for a NUS-001(FRA), then just ask some French N64 sellers on ebay and you'll find one.

    Regarding PAL systems..

    If you want to pay for the job and got a non-VDC-NUS PAL N64, I would ask Moosmann / Markus. I believe he has the latest and greatest PAL mod:
    http://mbrandel.vizionaires.net/

    Then there is always Wolfsoft, who also can mod any PAL N64. I would ask if they are still using the old mod, because that wasn't too good from what I have heard:
    http://www.wolfsoft.de/shop/product...-n64-pal-auf-rgb-incl.-rgb-booster-kabel.html
     
    Last edited: Jul 9, 2007
  13. ConsoleFun

    ConsoleFun Gutsy Member

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  14. mdmx

    mdmx Familiar Face

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    Moosmann did this mod for my clear-blue PAL N64. It works fine and the picture quality is much better on my standard TV. However don't expect too much on a LCD screen.

    The quality is similar to the NTSC RGB mod. Overall I think it's better to mod a PAL unit, because PAL games have a slightly higher resolution.
     
  15. Dr_Slump

    Dr_Slump Intrepid Member

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    Correct. I will send a PAL console there, most of my games are PAL anyway...
     
  16. wmj

    wmj Member

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    I just found this page while looking for some info regarding modding the n64 for RGB.
    I finally managed to get it working so I thought I'd share what I found :)

    The only mod that gave me a really good result was with lifting the legs 17, 19 and 21 of the vcd-nus chip off the motherboard. Then connect wires from the lifted legs to pins 1, 2 and 3 of the multi out respectively. Then get a NGC RGB SCART cable and remove or short-circuit the capacitors in it like this: http://www.mmmonkey.co.uk/console/nintendo/pal-snes-rgb.htm

    This gave me a perfect picture with no interference and no need for an amp at all. :icon_bigg
     
  17. ConsoleFun

    ConsoleFun Gutsy Member

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    Just curious... did you have any issues with the amp or didn't you build one?

    I will probably keep the little amp and caps in my future mods to block any DC voltage and prevent unnecessary current from going to ground (in the TV). Am sure you're good, but I hope the VDC-NUS doesn't get hot or anything.

    Congrats with a working RGB mod!
    Thanks for sharing your findings!!
     
  18. wmj

    wmj Member

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    I didn't build the amp so I can't really comment on that. I think you should be fine if you keep the amp with the caps though.

    I tried the mod where you link the points R8, R9 and R10 to AV plug pin 1, 2 and 3 first but that gave me a really dark picture, even with the capacitors removed from the SCART cable. Then I did the internal amplification but that did give me some interference.

    Finally, I came across this page: http://ntsc-uk.domino.org/showthread.php?t=55096&page=4 where I read that lifting the pins from the chip off the motherboard and removing the capacitors from the SCART should give a really good picture. It made sense to me so I tried it and it gives a really good picture indeed :)

    It seems that you can mod PAL N64's for RGB output too: http://nfggames.com/forum/index.php?showtopic=2563
     
    Last edited: Jul 15, 2007
  19. ConsoleFun

    ConsoleFun Gutsy Member

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    Hey again!
    I can confirm 100% that a little transistor amp on a stripboard does the job. No worries :) But I would keep it inside the N64 before transmission instead of in the SCART plug at the end.
    If linking the two points is what you mean, there will be interference.
    Very good to have that confirmed working!! Easier too for those who don't like stripboard work (and don't worry about the DC offset).
    Sure :) But a new DAC is needed if it is not a french VDC-NUS N64. The DAC mod done by Wolfsoft is/was the Double You mod. The DAC mod Moosmann did for mdmx was the new DAC mod made by viletim/aidan.
     
  20. GaijinPunch

    GaijinPunch Lemon Party Organizer and Promoter

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    Okay, tell us the story. My story? My wife is the most paranoid person on the planet. Burning lead-filled solder in the house? There's no quicker way for me to get divorced.
     
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