User:Theretrobristolian/MS9-29

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Nanao MS9-29
Manufacturer SEGA
Year 1995
Media Cartridge
CPU 2x Hitachi SH-2 @ 28.6 MHz
GPU 32-bit Video Display Processor / 32-bit background and scroll plane Video Display Processor
Sound Yamaha YMF292-F SCSP
Resolution 15KHz
Wiring Standard JAMMA
Predecessor Sega Model 2
Successor Sega Model 3

The Nanao MS9-29 was an arcade monitor EDIT system board released by Sega in 1995. Departing from their usual process of building custom arcade hardware, Sega's ST-V is ele.[1]

Hardware Specifications

Main CPU: 2x Hitachi SH-2 @ 28.6 MHz in a master/slave configuration
Custom Saturn Control Unit (SCU): Fixed-point math coprocessor
VDP1: 32-bit Video Display Processor - handles sprite and polygon drawing. Dual 256 KB framebuffers for rotate and scale effects. Texture mapping, Gouraud shading. 512KB texture RAM
VDP2: 32-bit background and scroll plane Video Display Processor - transparency effects, shadowing, 5 simultaneous scrolling backgrounds and 2 simultaneous rotating playfields
Sound CPU: Motorola 68000 @ 11.45 MHz
Sound Chip: Yamaha YMF292-F SCSP @ 11.3 MHz
Main RAM: 2 MB
VRAM: 1.54MB
Audio RAM: 512KB

Game List

ST-V Mod BIOS

The ST-V MODBIOS upon boot up lets the user select the ST-V BIOS region. This allows the user bypass region locked games, and access features and functionality that was limited to particular regions. It is available from Joerg Hartenberger's website.

Manuals

Cart Labels

CN24 Stereo Connector

The ST-V supports stereo via the onboard cn24 connector, the pinout is as follows:-

1-Left
2-Ground
3-Right
4-Ground

A simple jst connector can be used to wire up a pair of rca jacks for cabs with a stereo amplifier.

Common Faults

"ST-V IMPROPER GAME INSTALLATION" appears if the cartridge or cartridge slot are dirty. Clean with compressed air or Isopropyl Alcohol and a toothbrush.

References

External Links