lidnariq wrote:
I swear I've seen those big silkscreened "MK008" and "MK009" somewhere else recently, but I can't remember where.
Since it's a pirate multicart, it'll probably need a custom kazoo script. Given that the only hardware on the board is two 74'174s, a 74'139, and a 74'153, it'll be pretty easy to reverse-engineer it even without knowing what mapper it corresponds to.
Ideally, we'll find that "MK008" ROM somewhere in a thread and be able to write—or maybe even find already existing—the kazoo script from that data.
BUT IF WE CAN'T: this board is simple enough that we know approximately how it's going to work: Twelve of the pins on the two '174s are going to connect to the card edge; two will go to the 74'153, and the other ten will go to the three ROMs. Sitting down with a multimeter and determining what pins connect to what pins will let us tell you exactly what the hardware is doing, and then write a script from that.
Alright, I did a conductivity test on the board. Some pins seems not having conductivity or are connected to the PINS cart. Please tell me if something seems wrong on my readings. The first 9122VG (174) is the first starting at the left of the cart (front picture of the cart).
9122VG (174)
PIN1 : PIN1 of 2nd 174
PIN2 : PIN1 of EPROM, PIN3 of MK009 & PIN3 of MK008
PIN3 : PIN10 of EPROM, PIN12 of MK009, PIN12 of MK008
PIN4 : PIN9 of EPROM, PIN11 of MK009 & PIN11 of MK008
PIN5 : PIN2 of MK009 & PIN2 of MK008
PIN6 : PIN8 of EPROM, PIN10 of MK009 & PIN10 of MK008
PIN7 : PIN30 of MK009 & PIN30 of MK008
PIN8 : PIN16 of EPROM, PIN16 of MK009 & PIN16 of MK008, PIN14 of HY6264P, PIN 8 & 15 of 139, PIN8 of 2nd 174, PIN 8 & 15 of 153
PIN9 : PIN5 of 139, PIN9 of 2nd 174
PIN10 : PIN31 of MK009, PIN31 of MK008
PIN11 : PIN9 of MK009, PIN9 of MK008
PIN12 : PIN1 of MK009. PIN1 of MK008
PIN13 : PIN8 of MK009, PIN8 of MK008
PIN14 : PIN7 of MK009, PIN7 of MK008
PIN15 : NONE
PIN16 : PIN32 of MK009, PIN32 of MK008, PIN1, 26 & 28 of HY6264P, PIN16 of 139, PIN16 of 2nd 174, PIN16 of 153
9138 (139)
PIN1 : CART PIN
PIN2 : PIN32 of MK009, PIN32 of MK008, PIN1, 26 & 28 of HY6264P
PIN3 : CART CONNECTOR
PIN4 : NONE
PIN5 : PIN9 of both 174
PIN6 : NONE
PIN7 : PIN24 of MK009, PIN24 of MK008
PIN8 : PIN16 of MK009, PIN16 of MK008, PIN14 of HY6264P, PIN8 of both 174, PIN8 & 15 of 153.
PIN9 : PIN20 EPPROM
PIN10 : NONE
PIN11 : PIN22 of MK009
PIN12 : PIN22 of MK008
PIN13 : PIN5 of 2nd 274
PIN14 : PIN2 of 2nd 174
PIN15 : PIN14 of EPROM, PIN8 of 1st 174, PIN16 of MK009, PIN16 of MK008, PIN14 of HY6264P, PIN8 of 2nd 174, PIN8 & 15 of 153
PIN16 : PIN16 of both 174, PIN16 of 153, PIN32 of MK009, PIN32 of MK008, PIN1 & 26 & 28 of HY6264P
9122VG (174)
PIN1 : NONE
PIN2 : PIN14 of 139
PIN3 : PIN25 of EPPROM, PIN27 of MK009, PIN27 of MK008
PIN4 : PIN24 EPPROM, PIN26 of MK009, PIN26 of MK008
PIN5 : PIN13 of 139
PIN6 : PIN21 of EPPROM, PIN23 of MK009, PIN23 of MK008
PIN7 : NONE
PIN8 : PIN14 of EPPROM,PIN16 of MK009, PIN16 of MK008, PIN14 of HY6264P, PIN8 & PIN15 of 139, PIN8 & PIN15 of 153
PIN9 : PIN9 of 1st 174, PIN5 of 139
PIN10 : PIN14 of 9128
PIN11 : PIN22 of EPPROM, PIN25 of MK009, PIN25 of MK008
PIN12 : PIN11 & PIN13 of 153
PIN13 : PIN2 of EPROM, PIN4 of MK009, PIN4 of MK008
PIN14 : PIN26 of EPROM, PIN28 of MK009, PIN28 of MK008
PIN15 : NONE
PIN16 : PIN1 of both 174, PIN1 of 139, PIN1 of 153, PIN28 of EPROM, PIN32 of MK009, PIN32 of MK008, PIN1, PIN26 & 28 of HY6264P
9128 (153)
PIN1 : PIN7 of 2nd 174
PIN2 : PIN15 of 2nd 174
PIN3 : PIN23 of HY6264P
PIN4 : PIN23 of HY6264P
PIN5 : PIN21 of HY6264P
PIN6 : PIN21 of HY6264P
PIN7 : CART PIN
PIN8 : PIN8 of 1st 174, PIN15 of 139, PIN8 of 2nd 174, PIN14 of EPROM, PIN16 of MK009, PIN16 of MK008, PIN14 of HY6264P
PIN9 : PIN27 of EPROM, PIN29 of MK009, PIN29 of MK008
PIN10 : NONE
PIN11 : PIN12 of 2nd 174
PIN12 : NONE
PIN13 : PIN12 of 2nd 174
PIN14 : PIN10 of 2nd 174
PIN15 : PIN8 of both 174, PIN8 of 139, PIN14 of EPROM, PIN16 of MK009, PIN16 of MK008, PIN14 of HY2624P
PIN16 : PIN16 of both 174, PIN16 of 139, PIN28 of EPROM, PIN32 of MK009, PIN32 of MK008, PIN1, 26 & 28 of HY2624P