Y-Unit Test ROM (v1.40)
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Display
Type: raster Horizontal
Resolution: 410 x 256
Refresh: 54.71 Hz
Processors
Texas Instruments TMS34010 @ 40 MHz
Motorola MC6809E @ 2 MHz
Audio
Williams CVSD Sound Board
YM2151 OPM @ 3.58 MHz
MC1408 DAC
HC-55516
Channels: 1
Controls
Players: 4
Coin slots: 4
joy, 8-way, 1 button
joy, 8-way, 1 button
joy, 8-way, 1 button
joy, 8-way, 1 button
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 |
|---|---|---|---|
| DS1:8 | Sound Port Test | OFF Off ✱ON On | Off |
| DS1:7 | Coin Counter Test | OFF Off ✱ON On | Off |
| DS1:6 | Switch Input Test | OFF Off ✱ON On | Off |
| DS1:5 | ROM Checksums | OFF Off ✱ON On | Off |
| DS1:4 | Harsh DMA Test | OFF Off ✱ON On | Off |
| DS1:3 | Quick DMA Test | OFF Off ✱ON On | Off |
| DS1:2 | CMOS Test | OFF Off ✱ON On | Off |
| DS1:1 | RAM Test | OFF Off ✱ON On | Off |
| DS2:8 | Williams Logo | OFF Off ✱ON On | Off |
| DS2:7 | Unused | OFF Off ✱ON On | Off |
| DS2:6 | Unused | OFF Off ✱ON On | Off |
| DS2:4, DS2:5 | Screen Fills | DS2:4 DS2:5OFF OFF Nothing ✱OFF ON RedON OFF GreenON ON Blue | Nothing |
| DS2:3 | Screen Alignment | OFF Off ✱ON On | Off |
| DS2:1, DS2:2 | Display Type | DS2:1 DS2:2OFF OFF Auto Sense ✱OFF ON 4 Bit Y-UnitON OFF 6 Bit Y-UnitON ON 8 Bit Y-Unit | Auto Sense |
| Service Mode | Off ✱On | Off |