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View Full Version : Wtf is this board?

Korey
09-08-2011, 01:32 PM
Google just keeps telling me things about contraception when I google it and after digging through random board people sell I can't find anything that looks similar to it.

Does anyone have any idea what this is?

http://i773.photobucket.com/albums/yy19/Nemezek/314633_10150363499914703_586399702_9980048_7766391 92_n.jpg

If you can't see it well, it says SR Progress Board Type, 92F22

Thanks,

Korey
hobbs
09-08-2011, 01:41 PM
Unbolt it and take a picture of the other side. Looks like a basic EPROM daughter board to me...
vas570sx
09-08-2011, 01:45 PM
yeah, it may be a generic daughter board. The other side is prolly gonna give you more info like who tuned the chip or whatever.
OBEEWON
09-08-2011, 01:50 PM
Stick it in your Sega and see if you can play Contra.
Korey
09-08-2011, 01:56 PM
Alright, it's sitting a shop right now, but I'll get a picture of the chips as quickly as I can. Thanks for the fast replies guys!
Korey
10-19-2011, 08:35 PM
Alright here is the other side of the board. Sorry for the delayed reply.
http://a3.sphotos.ak.fbcdn.net/hphotos-ak-ash4/294540_10150421266004703_586399702_10334512_650506 814_n.jpg
Croustibat
10-20-2011, 03:10 AM
The SR20 ECU stores the maps in 2 interlaced eproms. This looks like an eprom switcher to me, i.e. you have 2 sets of maps, an can switch from one to the other. But this is just a guess...

I could not see the first pic . can you put a pic of the other side, and give me the infos written on the chips ? If the 2 big chips are twice as big as what they should be (which their serial number can tell, just peel of the labels and put them back after, it is only there to mask the UV window), it surely is what i think it is.
SoBay240guy
10-20-2011, 11:03 AM
That is just a daughter board, someone with ROMtune or any of the other software suites that handle nissan ROM's (or a clever guy with excel) can adjust injection and timing events ETC. assuming he also had a PROM burner and appropriate chips.....

The french guy got some stuff kinda right...

the chips are odd/even burnt chips on most daughter boards but that doesn't mean you have 2 maps it means your 1 map is stored on the 2 chips...some boards allow you to switch between external and internal maps (intrenal = original factory tune ) but that is useless most of the time because you usually get a tune because you needed to adjust for hardware changes...so your stock map is probably nothing you would be interested in running.