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General| Manufacturer | Sega |
|---|---|
| Type | Home video game console |
| Generation | Fourth generation |
| Discontinued | 1997 |
| CPU | Motorola 68000 |
| Zilog Z80 Clock Speed | 3.58 MHz |
| RAM | 64 KB |
| Video RAM | 64 KB |
| Audio RAM | 8 KB |
| Sound Chip | Texas Instruments SN76489 |
| Controller input | 2 controller ports |
| Weight | 1.2 kg |
| Predecessor | Sega Mega Drive |
| Successor | Sega Saturn |
| Media | ROM cartridge |
| Maximum Resolution | 320 × 224 pixels |
| Colors | 512 colors |
Provides electrical and physical ratings for the Genesis II and Mega Drive II consoles.
Details key technical features like CPU, memory, audio, and display capabilities.
Identifies external components of the Genesis II/Mega Drive II console from the front and top.
Identifies external components of the Genesis II/Mega Drive II console from the back.
Lists and illustrates accessories provided with the Genesis II and Mega Drive II.
Step-by-step guide for safely disassembling the console unit and removing components.
Steps for reassembling the console, including main board and top case reinstallation.
Detailed circuit diagram for the console, part 1.
Detailed circuit diagram for the console, part 2.
Detailed circuit diagram for the console, part 3.
Detailed circuit diagram for the console, part 4.
Top view layout of the Genesis II main circuit board.
Bottom view layout of the Genesis II main circuit board.
Top view layout of the Mega Drive II main circuit board.
Bottom view layout of the Mega Drive II main circuit board.
Illustrates the physical breakdown of the console for parts identification.
Lists mechanical components with part numbers and descriptions.
Lists electrical components, including ICs, with part numbers and descriptions.
Details accessories and packaging for the Genesis II console.
