PROG16 - V ROM issue

HeavyMachineGoob

My poontang misses Lenn Yang's wang
10 Year Member
Joined
Apr 3, 2011
Posts
5,843
I'm trying to figure out how the V ROM array works on the PROG16 board. At first it seems normal enough, has an SNK PCM chip doing the decoding and such. What's weird is every PROG16 game I can find puts the V1 ROM chip in the V2 socket and V2 into V4, etc.

Just out of curiosity I tried doing the same thing on the PROG16 with a different game, one that doesn't normally use PROG16 and the music doesn't work properly, go figure I suppose.

Does anyone know what is going on with this board? Is the board itself different from normal SNK procedures or do these games purposely have the V ROM data arranged oddly?

Example:

746px-Kotm_2_set1_b1_front.jpg
 

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,750
I use them all the time for when I make proto carts. I use 160s in the V2 slot and they work fine.
 
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