Snes mini doesnt work with some games

I have an Snes mini that doesnt boot mario RPG and starfox för example IT was working before. I have maybe damaged the srgb encoder When i rgb moddad it. Can IT have something to do with that? Thanks
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Comments

  • Do you get any sound out of the system?



    Have you tried these carts on another SNES?



    Do other games that have a co processor work?



    Are you using a NTSC or PAL console and are you using carts from the same region?
  • This is an snes mini (USA) and the games is also usa version. The games works perfetly on my other snes! i get nothing on the games with special chips? tried mario rpg and star ocean.
  • I would check and see if there are any solder bridges or anything else that may be making a bridge on the extra pins on of the cart connector.



    Can you post pictures of the board? both the bottom solder side and the pins from the top
  • Did you disable to lockout chip? I know smrpg doesn't work without it.
  • i havent touched the lockout chip! only the decoder chip.
  • I always look at the simple stuff first.



    Mario RPG and Starfox both use the extra outer pins on the cartridge slot (99% sure). Many game do not use the outer 8 pins.



    Make sure those are clean and free of debris, maybe you had a small piece of wire or solder drop in the slot?



    Crazy things can happen.



    Edit: I see that MrPete1985 suggested the same thing.  so nevermind.
  • Update: Star fox doesnt work but i get sound from that game?
  • the only game I've had issues with was the powerfest 94 cartridge, it would skip immediately to the home run derby bypassing the other 2 games.
  • Originally posted by: MrPete1985



    I would check and see if there are any solder bridges or anything else that may be making a bridge on the extra pins on of the cart connector.



    Can you post pictures of the board? both the bottom solder side and the pins from the top



    Any advice?

     
  • I'm out of ideas
  • Hi, what I see on your pictures, the decoder BA6596F have pins not well soldered, specially in the connector side. I recommand you to rework the pins 13, 16, 17, 19,20 and 21. rework all the solder on the side of the connector for the decoder. To verify your solder take a small screwdriver and try to move gently the pin. If the pin move, the solder joint is not good. you can check the pins that I mentionned before with the same method before reworking them.
  • Originally posted by: evil wizard werdna



    Hi, what I see on your pictures, the decoder BA6596F have pins not well soldered, specially in the connector side. I recommand you to rework the pins 13, 16, 17, 19,20 and 21. rework all the solder on the side of the connector for the decoder. To verify your solder take a small screwdriver and try to move gently the pin. If the pin move, the solder joint is not good. you can check the pins that I mentionned before with the same method before reworking them.





    These pads on the decoder is gone. But have that really something to do with my problem? the thecoder is for the image right?
  • You didn't say starfox have no image but have sound?
  • The pins that I mentionned still have pads, and seems to have bad soldering joints. And the decoder is for the image of course.
  • Star Fox have sound but no image. As you can se i have an rgb amp aswell
  • I am not a specialist of rgb modding, but what I know is that some of the pins I mentionned are critical for video. for example, pin 13 is for the chroma color carrier 3,58mhz. Pin 19 is for the region selection NTSC or pal. So it can be the problem, and you have nothing to loose for trying resolder the pins, or at least verify the contact of the pins with a screwdriver
  • Originally posted by: evil wizard werdna



    I am not a specialist of rgb modding, but what I know is that some of the pins I mentionned are critical for video. for example, pin 13 is for the chroma color carrier 3,58mhz. Pin 19 is for the region selection NTSC or pal. So it can be the problem, and you have nothing to loose for trying resolder the pins, or at least verify the contact of the pins with a screwdriver

    I think you are right but why do other games work that doesnt use those extra pins?

    Also the pads on the motherboard are burnt and gone so i have to rewire fom decoder to other points, but i dont see how the rails goes?



     
  • Originally posted by: retronerd

     
    Originally posted by: evil wizard werdna



    I am not a specialist of rgb modding, but what I know is that some of the pins I mentionned are critical for video. for example, pin 13 is for the chroma color carrier 3,58mhz. Pin 19 is for the region selection NTSC or pal. So it can be the problem, and you have nothing to loose for trying resolder the pins, or at least verify the contact of the pins with a screwdriver

    I think you are right but why do other games work that doesnt use those extra pins?

    Also the pads on the motherboard are burnt and gone so i have to rewire fom decoder to other points, but i dont see how the rails goes?



     

    Some of those pins are power. Some of those pins are video. Super Game Boy and most games with special chips used them. Normal games did not need them. Pretty sure that SGB and most FX games used the video pins and, well, they had to power their processors somehow. 
  • I don't know why other games work for the moment. I will think about it
  • For the pins with the pads burn out, this will help you

    http://forums.nesdev.com/viewtopic.php?f=12&t=10470

    Download the zip file

    But what I can see many of the pins burn out are not connected to anything
  • Originally posted by: CZroe

     
    Originally posted by: retronerd

     
    Originally posted by: evil wizard werdna



    I am not a specialist of rgb modding, but what I know is that some of the pins I mentionned are critical for video. for example, pin 13 is for the chroma color carrier 3,58mhz. Pin 19 is for the region selection NTSC or pal. So it can be the problem, and you have nothing to loose for trying resolder the pins, or at least verify the contact of the pins with a screwdriver

    I think you are right but why do other games work that doesnt use those extra pins?

    Also the pads on the motherboard are burnt and gone so i have to rewire fom decoder to other points, but i dont see how the rails goes?



     

    Some of those pins are power. Some of those pins are video. Super Game Boy and most games with special chips used them. Normal games did not need them. Pretty sure that SGB and most FX games used the video pins and, well, they had to power their processors somehow. 





    It must be the problem then, can it be rewired somehow? becaus some of the pads are gone
  • I don't know. Is this a clone console? If you can follow the original traces and see where they connect you might be able to solder jumper wires to restore the connection.
  • This is not a clone
  • Originally posted by: retronerd

     
    Originally posted by: CZroe

     
    Originally posted by: retronerd

     
    Originally posted by: evil wizard werdna



    I am not a specialist of rgb modding, but what I know is that some of the pins I mentionned are critical for video. for example, pin 13 is for the chroma color carrier 3,58mhz. Pin 19 is for the region selection NTSC or pal. So it can be the problem, and you have nothing to loose for trying resolder the pins, or at least verify the contact of the pins with a screwdriver

    I think you are right but why do other games work that doesnt use those extra pins?

    Also the pads on the motherboard are burnt and gone so i have to rewire fom decoder to other points, but i dont see how the rails goes?



     

    Some of those pins are power. Some of those pins are video. Super Game Boy and most games with special chips used them. Normal games did not need them. Pretty sure that SGB and most FX games used the video pins and, well, they had to power their processors somehow. 





    It must be the problem then, can it be rewired somehow? becaus some of the pads are gone





    I removed the encoder chip completely and as you can see pin (24) (23) (22) and (18) are gone.

    Pin 24 is rgb-blue pin 23 is NC 22 is RGB Green and 18 is NCP?

    http://www.ladda-upp.se/bilder/uuriugabxbiqah/
  • I have a snes mini,I could try and trace where the missing pins go,also here's a pinout of the chip.



    image
  • Originally posted by: Pikkon



    I have a snes mini,I could try and trace where the missing pins go,also here's a pinout of the chip.



    image





    Thanks! I would be very greatful for that
  • I have changed the whole connector but the problem is still there??? Star Fox sound but no image, mario rpg blackscreen?
  • I also run the Snes burn in test program and all passes!??????
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