- Mar 20, 2014
Geona εχεις μηπως καμια ιδεα για το που μπορω να βρω διαγραμματα για τα τμηματα της model 3; πχ το πρωτο που θελω να δω ειναι τα voltages
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Sega Model 2 (non JAMMA):
Model 2 features 5 different "parts" (printed in light blue):
Model 2 mainboard/housing comes in 3 different versions: A-CRX, B-CRX and...guess...C-CRX yes. B-CRX and C-CRX are basically the same, differing only in chips used. A-CRX not only features the oldest hardware of the threee but also has a slightly different pinout setting.
ITS NOT A JAMMA PINOUT SYSTEM, but if u know the pinout settings u easily can build urself an adapter (see TechFAQs section).
Ontop of the CRX mainboard sits the actual gameboard with all the mask roms. Gameboards are always the same. In fact u would only need to buy the new mask roms and chip settings for a game if u have one gameboard at home. If thats the easiest way is questionable, but its a bit cheaper.
Some games (not all) like Zero Gunner or Last Bronx need a special "Security PCB", a small pcb sitting ontop of the mainboard. Sellers often forget this IMPORTANT little thing. Without it game wont show u more than the intro screen.
Main- and Gameboard is surrounded by a heavy(!!!) gigantic aluminium housing containing a ventilation system and the actual pinouts. If u have one u can use it like MVS mainboard for all other CRX boards. Housings for B- and C-CRX mainboards are interchangeable.
Battery is for highscores.
Sega Model 3 (non JAMMA):
Like Model 2 Model 3 features many versions (Step 1, Step 1.5, Step 2 and Step 2.1). While all provide the same pinouts, hardware was always slightly changed.
Its also NOT A JAMMA SYSTEM. Making an adapter is even harder as Model 3 needs an additional 3,3V power supply. Also it features Medium Resolution - 24KHz 496(H)84(V) - so its best to get an original cab. Cheapest will be Virtua Fighter 3.
System again features the components I mentioned in "Model 2" (see above), but without the "Security PCB".
U can convert Model 3 to Model 2 easily. It uses nearly(!!!) the same pinouts (see TechFAQs).
Battery is for highscores.
naomi_mini.gif (34576 Byte)
...convert Sega Model 3 to Model 2(B-CRX)
..Sega Model 2B - CRX Pinout Information
SEGA MODEL 2 PINOUTS – FOR FILTER PCB CONNECTORS
FOR STANDARD JAMMA HOOKUP CONVERTERS
CN7 –VIDEO – 5PIN
CN 13 – AUDIO – 4PIN
1 CH 1
2 CH 1
3 CH 2
4 CH 2
CN3 & CN 12 – POWER – 10 PIN
1 THRU 5 +5V
6 THRU 10 GND
CN 10 – 24 BIT DIGITAL INPUT (SWITCHES) – 25 PIN
1 COIN 1
2 COIN 2
5 1P EXPANSION SW 4
6 1P EXPANSION SW 5
7 1P START
8 2P START
9 1P PUSH 1
10 1P PUSH 2
11 1P PUSH 3
12 EXPANSION SW
13 1P DOWN
14 1P UP
15 1P RIGHT
16 1P LEFT
17 2P PUSH 1
18 2P PUSH 2
19 2P PUSH3
20 2P EXPANSION SW 4
21 2P EXPANSION SW 5
22 2P DOWN
23 2P UP
24 2P RIGHT
25 2P LEFT
nickblame said:Hm με ενα γρηγορο googlarisma βλεπω οτι πιθανον να φταινε κατι chip 16 bit buffers λεει στην motherboard :?
geoanas said:Με τιποτα...ολα ειναι surface. Μονο αερας...τοτε θα ειναι σχετικα ευκολη δουλεια...νομιζω
Εφτιαξα και την bobble bobble by the way θα κανω θεματακι
nickblame said:Pffff :x
Χαθηκε να ηταν κανα πυκνωτακι να καθαριζε ευκολα :evil: