The Main Event (4 Players ver. Y)
Also known as: Ring no Ohja, The Ocean Hunter: The Seven Seas Adventure
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Display
Type: raster Horizontal
Resolution: 288 x 224
Refresh: 59.19 Hz
Processors
Hitachi HD6309E @ 3 MHz
Zilog Z80 @ 3.58 MHz
Audio
Konami 007232 PCM Controller @ 3.58 MHz
NEC uPD7759 @ 640 kHz
Channels: 1
Controls
Players: 4
Coin slots: 4
joy, 8-way, 2 buttons
joy, 8-way, 2 buttons
joy, 8-way, 2 buttons
joy, 8-way, 2 buttons
Components (from manual)
Z80 Microprocessor · Various locations · Main processors
YM2151 Sound · Sound section · FM sound synthesizer
UPD7759 Sound · Sound section · ADPCM speech synthesizer
007452 Custom · Graphics section · Konami custom chip
007327 Custom · Graphics section · Konami custom chip
74LS373 Logic · Multiple locations · Octal latch
74LS245 Logic · Multiple locations · Octal bus transceiver
74LS244 Logic · Multiple locations · Octal buffer
74LS138 Logic · Multiple locations · 3-to-8 decoder
74LS00 Logic · Multiple locations · Quad NAND gate
74LS04 Logic · Multiple locations · Hex inverter
74LS08 Logic · Multiple locations · Quad AND gate
74LS32 Logic · Multiple locations · Quad OR gate
2764 Memory · Program ROM section · 8K EPROM
27128 Memory · Program ROM section · 16K EPROM
6264 Memory · RAM section · 8K static RAM
2114 Memory · RAM section · 1K static RAM
PCBs (from manual)
Main Event 100098
Main game PCB
Main game PCB
DIP Switch Settings
Data from MAME. On later hardware, game settings are typically in the Test/Service Menu, not DIP switches. Learn more
| Switch | Setting | Options | Default |
|---|---|---|---|
| SW1:1, SW1:2, SW1:3, SW1:4 | Coinage | SW1:1 SW1:2 SW1:3 SW1:4ON OFF ON ON 4 Coins/1 CreditOFF ON OFF ON 3 Coins/1 CreditON ON ON OFF 2 Coins/1 CreditON ON OFF ON 3 Coins/2 CreditsOFF ON ON ON 4 Coins/3 CreditsOFF OFF OFF OFF 1 Coin/1 Credit ✱ON ON ON ON 4 Coins/5 CreditsOFF OFF ON ON 3 Coins/4 CreditsOFF OFF OFF ON 2 Coins/3 CreditsON OFF OFF OFF 1 Coin/2 CreditsON OFF OFF ON 2 Coins/5 CreditsOFF ON OFF OFF 1 Coin/3 CreditsON ON OFF OFF 1 Coin/4 CreditsOFF OFF ON OFF 1 Coin/5 CreditsON OFF ON OFF 1 Coin/6 CreditsOFF ON ON OFF 1 Coin/7 Credits | 1 Coin/1 Credit |
| SW1:5 | Unused | OFF Off ✱ON On | Off |
| SW1:6 | Unused | OFF Off ✱ON On | Off |
| SW1:7 | Unused | OFF Off ✱ON On | Off |
| SW1:8 | Unused | OFF Off ✱ON On | Off |
| SW2:1 | Unused | OFF Off ✱ON On | Off |
| SW2:2 | Unused | OFF Off ✱ON On | Off |
| SW2:3 | Unused | OFF Off ✱ON On | Off |
| SW2:4, SW2:5 | Bonus Energy | SW2:4 SW2:5ON ON 60OFF ON 70ON OFF 80 ✱OFF OFF 90 | 80 |
| SW2:6, SW2:7 | Difficulty | SW2:6 SW2:7OFF OFF EasyON OFF Normal ✱OFF ON HardON ON Very Hard | Normal |
| SW2:8 | Demo Sounds | OFF OffON On ✱ | On |
| SW3:1 | Flip Screen | OFF Off ✱ON On | Off |
| SW3:2 | Unused | OFF Off ✱ON On | Off |
| SW3:3 | Service Mode | OFF Off ✱ON On | Off |
| SW3:4 | Unused | OFF Off ✱ON On | Off |