This is the 5 chip set needed to link 2 CRUISIN U.S.A. DRIVING  GAMES together. 

They are used but tested working.

The auction is for 1 SET.
If you need 2 SETS buy 2 items.

It includes U10-U13 4.1 Game ROMS (4 chips) and the U38 LINKING  chip. 

*BOTH games need a LINK chip and BOTH games need to run the 4.1 software U10-U13.

Price is for 1 SET.



Dipswitch Bank U97
Both machines : switch 6 ON
1st machine : switches 7 & 8 OFF (master)
2nd machine: switch 7 ON and switch 8 OFF (car #2)

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Left Game (Player 1)
Dip Switch 2 (U97)
SW6=On (Link On)
SW8=On (Master)
Right Game (Player 2)
Dip Switch 2 (U97)
SW6=On (Link On)
SW8=Off (Slave)

Switch 6 and 8 are the only ones that should be used for linking. 
I can also confirm these instructions also work.
Price is for 1 set.