Iemoto (Japan 871020)
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Display
Type: raster Horizontal
Resolution: 512 x 224
Refresh: 60 Hz
Processors
Zilog Z80 @ 5 MHz
Audio
AY-3-8910A PSG @ 1.25 MHz
8-Bit R-2R DAC
Channels: 1
Controls
Players: 2
Coin slots: 2
mahjong, 26 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 |
|---|---|---|---|
| DSWA:1, DSWA:2, DSWA:3 | Difficulty | DSWA:1 DSWA:2 DSWA:3OFF OFF OFF 1 (Hard)ON OFF OFF 2OFF ON OFF 3ON ON OFF 4OFF OFF ON 5ON OFF ON 6OFF ON ON 7ON ON ON 8 (Easy) ✱ | 8 (Easy) |
| DSWA:4 | RENCHAN after TENPAIed RYUKYOKU | OFF OffON On ✱ | On |
| DSWA:5 | Character Display Test | OFF Off ✱ON On | Off |
| DSWA:6 | Unknown | OFF Off ✱ON On | Off |
| DSWA:7 | Unknown | OFF Off ✱ON On | Off |
| DSWA:8 | Unknown | OFF Off ✱ON On | Off |
| DSWB:1 | Unknown | OFF Off ✱ON On | Off |
| DSWB:2 | Unknown | OFF Off ✱ON On | Off |
| DSWB:3 | Unknown | OFF Off ✱ON On | Off |
| DSWB:4 | Unknown | OFF Off ✱ON On | Off |
| DSWB:5 | Unknown | OFF Off ✱ON On | Off |
| DSWB:6 | Unknown | OFF Off ✱ON On | Off |
| DSWB:7 | Unknown | OFF Off ✱ON On | Off |
| DSWB:8 | Unknown | OFF Off ✱ON On | Off |