Idol no Himitsu (Japan 890304)
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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 | Game Out Rate | DSWA:1 DSWA:2 DSWA:3ON ON ON 55%OFF ON ON 60%ON OFF ON 65%OFF OFF ON 70%ON ON OFF 75%OFF ON OFF 80%ON OFF OFF 85%OFF OFF OFF 90% ✱ | 90% |
| DSWA:4, DSWA:5 | Coinage | DSWA:4 DSWA:5OFF OFF 1 Coin/1 Credit ✱ON OFF 1 Coin/2 CreditsOFF ON 1 Coin/5 CreditsON ON 1 Coin/10 Credits | 1 Coin/1 Credit |
| DSWA:6 | Bet Max | ON 1OFF 20 ✱ | 20 |
| DSWA:7 | Unknown | OFF Off ✱ON On | Off |
| DSWA:8 | Last Chance | OFF OffON On ✱ | On |
| DSWB:1 | Flip Screen | OFF Off ✱ON On | Off |
| DSWB:2 | Character Display Test | OFF Off ✱ON On | Off |
| DSWB:3 | Double Bet | 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 |