4nin-uchi Mahjong Jantotsu
▶ Open in the searchable database
Display
Type: raster Vertical
Resolution: 256 x 224
Refresh: 60 Hz
Processors
Zilog Z80 @ 4.608 MHz
Audio
SN76489A @ 3.072 MHz
SN76489A @ 3.072 MHz
OKI MSM5205 ADPCM @ 384 kHz
Channels: 1
Controls
Players: 2
Coin slots: 2
mahjong, 19 buttons
mahjong, 19 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 | Coinage | ON 1 Coin/1 Credit ✱OFF 1 Coin/2 Credits | 1 Coin/1 Credit |
| SW1:2 | Unused | ON Off ✱OFF On | Off |
| SW1:3, SW1:4, SW1:5 | Player vs. CPU timer decrement speed | SW1:3 SW1:4 SW1:5ON ON ON 30ON OFF ON 50OFF ON ON 70OFF OFF ON 90ON ON OFF 110 ✱ON OFF OFF 130OFF ON OFF 150OFF OFF OFF 170 | 110 |
| SW1:6, SW1:7, SW1:8 | Player vs. Player timer decrement speed | SW1:6 SW1:7 SW1:8ON ON ON 100ON OFF ON 120OFF ON ON 140OFF OFF ON 160ON ON OFF 180 ✱ON OFF OFF 200OFF ON OFF 220OFF OFF OFF 240 | 180 |
| SW2:1, SW2:2, SW2:3 | Difficulty | SW2:1 SW2:2 SW2:3OFF OFF OFF Easy ✱OFF OFF ON NormalON ON ON Hard | Easy |
| SW2:4 | Unused | ON Off ✱OFF On | Off |
| SW2:5 | Service Mode | ON Off ✱OFF On | Off |
| SW2:6 | Play BGM | OFF OffON On ✱ | On |
| SW2:7, SW2:8 | Background Color | SW2:7 SW2:8OFF OFF PurpleON OFF GreenOFF ON Blue ✱ON ON Black | Blue |