Jansou (set 1)
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Display
Type: raster Horizontal
Resolution: 256 x 240
Refresh: 60 Hz
Processors
Zilog Z80 @ 3.072 MHz
Zilog Z80 @ 4 MHz
Audio
AY-3-8910A PSG @ 1.536 MHz
8-Bit R-2R DAC
Channels: 1
Controls
Players: 2
Coin slots: 2
mahjong, 26 buttons
gambling, 2 buttons
mahjong, 26 buttons
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 | Pay Out Rate | SW1:1 SW1:2 SW1:3 SW1:4OFF OFF OFF OFF 50%ON OFF OFF OFF 53%OFF ON OFF OFF 56%ON ON OFF OFF 59%OFF OFF ON OFF 62%ON OFF ON OFF 65%OFF ON ON OFF 68%ON ON ON OFF 71%OFF OFF OFF ON 74%ON OFF OFF ON 77%OFF ON OFF ON 80%ON ON OFF ON 83%OFF OFF ON ON 86%ON OFF ON ON 89%OFF ON ON ON 92%ON ON ON ON 95% ✱ | 95% |
| SW1:5, SW1:6 | Maximum Bet | SW1:5 SW1:6OFF OFF 1ON OFF 5OFF ON 10ON ON 20 ✱ | 20 |
| SW1:7 | Unknown 1-7 | OFF Off ✱ON On | Off |
| SW1:8 | Unknown 1-8 | OFF Off ✱ON On | Off |
| SW2:1, SW2:2 | First Chance | SW2:1 SW2:2OFF OFF NoneON OFF 3OFF ON 4ON ON 5 ✱ | 5 |
| SW2:3, SW2:4 | Last Chance | SW2:3 SW2:4OFF OFF NoneON OFF 3OFF ON 4ON ON 5 ✱ | 5 |
| SW2:5 | Unknown 2-5 | OFF Off ✱ON On | Off |
| SW2:6 | Unknown 2-6 | OFF Off ✱ON On | Off |
| SW2:7 | Unknown 2-7 | OFF Off ✱ON On | Off |
| SW2:8 | Middle Chance | OFF OffON On ✱ | On |
| SW3:1 | Unknown 3-1 | OFF Off ✱ON On | Off |
| SW3:2 | Unknown 3-2 | OFF Off ✱ON On | Off |
| SW3:3 | Unknown 3-3 | OFF Off ✱ON On | Off |
| SW3:4 | Unknown 3-4 | OFF Off ✱ON On | Off |
| SW3:5 | Unknown 3-5 | OFF Off ✱ON On | Off |
| SW3:6 | Girl | OFF OffON On ✱ | On |
| SW3:7 | Unknown 3-7 | OFF Off ✱ON On | Off |
| SW3:8 | Unknown 3-8 | OFF Off ✱ON On | Off |