Mayo no 21
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Display
Type: raster Horizontal
Resolution: 512 x 256
Refresh: 60 Hz
Processors
MOS Technology 6502 @ 2 MHz
Intel 8751 @ 8 MHz
Audio
AY-3-8910A PSG @ 2 MHz
HC-55516 @ 2 MHz
Channels: 1
Controls
Players: 1
Coin slots: 1
gambling, 13 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 |
|---|---|---|---|
| SW0:1 | Unknown | OFF Off ✱ON On | Off |
| SW0:2 | Unknown | OFF Off ✱ON On | Off |
| SW0:3 | Unknown | OFF Off ✱ON On | Off |
| SW0:4 | Unknown | OFF Off ✱ON On | Off |
| SW0:5 | Unknown | OFF Off ✱ON On | Off |
| SW0:6 | Unknown | OFF Off ✱ON On | Off |
| SW0:7 | Unknown | OFF Off ✱ON On | Off |
| SW0:8 | Unknown | OFF Off ✱ON On | Off |
| SW1:1 | Unknown | OFF Off ✱ON On | Off |
| SW1:2 | Unknown | OFF Off ✱ON On | Off |
| SW1:3 | Unknown | OFF Off ✱ON On | Off |
| SW1:4 | Unknown | OFF Off ✱ON On | Off |
| SW1:5 | Unknown | OFF Off ✱ON On | Off |
| SW1:6 | Unknown | OFF Off ✱ON On | Off |
| SW1:7 | Unknown | OFF Off ✱ON On | Off |
| SW1:8 | Unknown | OFF Off ✱ON On | Off |
| SW2:1 | Unknown | OFF Off ✱ON On | Off |
| SW2:2 | Unknown | OFF Off ✱ON On | Off |
| SW2:3 | Unknown | OFF Off ✱ON On | Off |
| SW2:4 | Unknown | OFF Off ✱ON On | Off |
| SW2:5 | Unknown | OFF Off ✱ON On | Off |
| SW2:6 | Unknown | OFF Off ✱ON On | Off |
| SW2:7 | Unknown | OFF Off ✱ON On | Off |
| SW2:8 | Unknown | OFF Off ✱ON On | Off |