SNES Game missing parts

Hi Guys!

Long time ago if have got a snes pcb which does not work, because some parts are missing.
Now I have had some time for some research.

I found out that game could be the Super Nintendo Campus Challenge 1992.

I have attached a picture with all components on it.

Now is the part this missing

U15
BB9231MEX (dip16)
(it is on the chip left from the beside the dip switches )

many thanks

maybe someone can help me.

many thanks

In that picture you've posted, U15 is the lockout chip. It's marked "D411", which means it's for NTSC.

By the way, if you haven't already, you should dump the ROMs in your cartridge. It looks pretty rare, and (E)EPROMs don't last forever.

hi!

do you have the correct name for this item?

is it a pic?
if yes what type?

any idea?

can I also make a multinorm chip?

many thanks

It is a Nintendo-proprietary chip. You should be able to find any official Super Nintendo cartridge (in any game) and desolder the D411 chip + put it in the device you have and it should work.

Be sure to check the PCB (backside) for any kind of "custom wiring" -- someone may have removed the D411 that was in the in (a horribly failed) attempt to circumvent the CIC, or because of "possible infringement" (i.e. some form of paranoia) -- and tried to rewire the back to avoid it. If there isn't a mess of custom wiring on the back then chances are all all you need to do is what I said above.

P.S. -- I second Joe's motion of dumping and verifying the (E)EPROMs.

is there any possibility to make the game work on pal and ntsc?
is there also a custom region free cic?

or will this not work

i have a multinorm console.

also have now seen that left beside the DSPn 7.600MHz Plastic Type "[M]7600A" (used without divider)
(in picture "R1") is also missing.

what is it?

many thanks

The game working on both PAL and NTSC is highly dependent upon the game code that's on the (E)EPROMs.

For the SNES/SFC, the CIC chips come in two flavours: NTSC or PAL. So you need to know what the original device had in it. Based on the Wikipedia article, I would say this is a purely NTSC cartridge, so it will need an NTSC CIC cartridge chip. You should be able to use a D411, D411A, or D411B. I'm not sure if a F411A or F411B will work.

I have no idea what the chip labelled "R1" is because the picture you provided is not clear enough + taken at an angle. I cannot find the R1 silkscreening anywhere in the picture.

I have no idea about "multinorm" or what this term even means.

"R1" is a bias resistor, used with the ceramic resonator in the adjacent white box and the inverter in the adjacent 74'04 (U1). IF the board doesn't have one—and it doesn't conspicuously look like one was removed—it probably never had one; not all clock generating designs require it.

In the picture you posted, it appears to be Brown Black Black Yellow Brown on a pale blue body = 100 ×10⁴ ±1% metal film resistor = 1MΩ, a typical value for a ceramic resonator's bias resistor.

Finally, you can get/make both PIC and ATtiny-based SNES CIC clones. I'm not certain where exactly you can find the firmware to burn them with, though... probably somewhere in this thread

I don't think the ATtiny firmware ever saw the light of day, but the PIC version can be found here

hi!

multinorm means you have a snes console which plays all region games. (NTSC, PAL, NTSC-J)

is this bias resistor also on the game pilotwings (J) pcb?
because the lockout, the dsp1 and DSPn 7.600MHz should be also in this game.

if I try the super cic solution where are the solder points?
one problem the lockout is dip16

and where to solder the attiny cic?

thanks

If you need a CIC, I would be happy to sent one to you if it mean repairing that rare cart.

Third-ing this.
If you're on the west coast in the US, I'll loan you a Teensy++2.0 and some jumper wires to do so.