Sega Saturn (Model 2) - Revision history

Josh: Fix file reference

2026-02-10T11:34:00Z

Fix file reference

← Older revision		Revision as of 12:34, 10 February 2026
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	{{Infobox computer		{{Infobox computer
	\| name = Sega Saturn (Model 2)		\| name = Sega Saturn (Model 2)
	\| image = [[File:Sega-Saturn-Console-Set-Mk2.~~jpg~~\|250px]]		\| image = [[File:Sega-Saturn-Console-Set-Mk2.png\|250px]]
	\| caption = Sega Saturn Model 2		\| caption = Sega Saturn Model 2
	\| manufacturer = Sega		\| manufacturer = Sega
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	== Gallery ==		== Gallery ==
	<gallery mode="packed" heights="180">		<gallery mode="packed" heights="180">
	File:Sega-Saturn-Console-Set-Mk2.~~jpg~~\|Sega Saturn Model 2		File:Sega-Saturn-Console-Set-Mk2.png\|Sega Saturn Model 2
	File:Sega-Saturn-Motherboard-Model-VASG-Top.jpg\|Model 2 mainboard		File:Sega-Saturn-Motherboard-Model-VASG-Top.jpg\|Model 2 mainboard
	File:Sega-Saturn-Power-Supply-V2-a.jpg\|Power supply unit		File:Sega-Saturn-Power-Supply-V2-a.jpg\|Power supply unit

Josh: /* PCB Schematics & Service Manual */

2025-05-12T17:20:17Z

PCB Schematics & Service Manual

← Older revision		Revision as of 18:20, 12 May 2025
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	\| [[File:SegaSaturn_PSU.jpg\|thumb\|center\|300px\|Sega Saturn Power Supply Unit]]		\| [[File:SegaSaturn_PSU.jpg\|thumb\|center\|300px\|Sega Saturn Power Supply Unit]]
	\|}		\|}
			''For detailed board layouts and service procedures, refer to the [[Sega Service Manual - Sega Saturn Pal - 1 June 1995\|Sega Saturn Service Manual]].''
	* For detailed board layouts and service procedures, refer to the [[Sega Service Manual - Sega Saturn Pal - 1 June 1995\|Sega Saturn Service Manual]].

	== Gallery ==		== Gallery ==

Josh at 17:19, 12 May 2025

2025-05-12T17:19:40Z

← Older revision		Revision as of 18:19, 12 May 2025
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	The '''Sega Saturn (Model 2)''' is a 32-bit fifth-generation home video game console developed by Sega. Released in Japan in late 1994 and internationally in 1995, the Saturn is renowned for its advanced dual-CPU architecture and powerful 2D and 3D graphics capabilities, making it a favourite among retro gaming enthusiasts.		The '''Sega Saturn (Model 2)''' is a 32-bit fifth-generation home video game console developed by Sega. Released in Japan in late 1994 and internationally in 1995, the Saturn is renowned for its advanced dual-CPU architecture and powerful 2D and 3D graphics capabilities, making it a favourite among retro gaming enthusiasts.

	== 🧠 Architecture and Processor ==		== Architecture and Processor ==
	~~At the heart of the~~ Sega Saturn is a complex, parallel-processing architecture designed to excel at both 2D sprite manipulation and 3D polygonal graphics. Its main processing components include:		The Sega Saturn is powered by a complex, parallel-processing architecture designed to excel at both 2D sprite manipulation and 3D polygonal graphics. Its main processing components include:
	* '''Dual Hitachi SH-2 32-bit RISC CPUs''' running at 28.6 MHz, operating in parallel for increased performance.		* '''Dual Hitachi SH-2 32-bit RISC CPUs''' running at 28.6 MHz, operating in parallel for increased performance.
	* '''Hitachi SH-1''' as the CD-ROM controller.		* '''Hitachi SH-1''' as the CD-ROM controller.
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	This architecture allowed for advanced graphical effects, but also posed programming challenges due to its complexity.		This architecture allowed for advanced graphical effects, but also posed programming challenges due to its complexity.

	== 💾 Memory and Storage ==		== Memory and Storage ==
	The Saturn Model 2 features a diverse memory map optimised for graphics and sound:		The Saturn Model 2 features a diverse memory map optimised for graphics and sound:
	* '''2 MB main RAM'''		* '''2 MB main RAM'''
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	Storage is provided by a '''2× speed CD-ROM drive''', supporting up to 640 MB per disc. Game saves are stored in internal backup RAM or on external RAM cartridges.		Storage is provided by a '''2× speed CD-ROM drive''', supporting up to 640 MB per disc. Game saves are stored in internal backup RAM or on external RAM cartridges.

	== 🖥️ Display and Graphics ==		== Display and Graphics ==
	The Saturn's graphics subsystem is built around its dual VDPs:		The Saturn's graphics subsystem is built around its dual VDPs:
	* '''Resolution:''' 320×224 to 704×480 pixels (interlaced and non-interlaced modes)		* '''Resolution:''' 320×224 to 704×480 pixels (interlaced and non-interlaced modes)
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	Hardware support for both 2D and 3D graphics made the Saturn especially strong for arcade-style and sprite-based games.		Hardware support for both 2D and 3D graphics made the Saturn especially strong for arcade-style and sprite-based games.

	== 🔊 Sound Capabilities ==		== Sound Capabilities ==
	Audio on the Saturn is powered by the '''Yamaha YMF292-F (SCSP)''' sound processor:		Audio on the Saturn is powered by the '''Yamaha YMF292-F (SCSP)''' sound processor:
	* '''32 sound channels''' supporting PCM and ADPCM playback		* '''32 sound channels''' supporting PCM and ADPCM playback
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	This robust sound system enabled high-quality music and effects, including streaming audio from CD.		This robust sound system enabled high-quality music and effects, including streaming audio from CD.

	== 🎮 Input/Output and Expansion ==		== Input/Output and Expansion ==
	The Saturn Model 2 offers a wide range of connectivity and expansion options:		The Saturn Model 2 offers a wide range of connectivity and expansion options:
	* '''Controller ports:''' 2 × proprietary 9-pin connectors (supporting digital and analogue pads, multitap)		* '''Controller ports:''' 2 × proprietary 9-pin connectors (supporting digital and analogue pads, multitap)
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	* '''Power:''' Internal PSU (100–240 V, region dependent)		* '''Power:''' Internal PSU (100–240 V, region dependent)

	== 🔍 PCB Schematics & Service Manual ==		== PCB Schematics & Service Manual ==
	<templatestyles src="Template:StyledTable/styles.css" />		<templatestyles src="Template:StyledTable/styles.css" />

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	* For detailed board layouts and service procedures, refer to the [[Sega Service Manual - Sega Saturn Pal - 1 June 1995\|Sega Saturn Service Manual]].		* For detailed board layouts and service procedures, refer to the [[Sega Service Manual - Sega Saturn Pal - 1 June 1995\|Sega Saturn Service Manual]].

	== 📷 Gallery ==		== Gallery ==
	<gallery mode="packed" heights="180">		<gallery mode="packed" heights="180">
	File:Sega-Saturn-Console-Set-Mk2.jpg\|Sega Saturn Model 2		File:Sega-Saturn-Console-Set-Mk2.jpg\|Sega Saturn Model 2
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	</gallery>		</gallery>

	== 🧪 Related Pages ==		== Related Pages ==
	* [[Sega Saturn (Model 2) Maintenance Guide\|Sega Saturn (Model 2) General Maintenance]]		* [[Sega Saturn (Model 2) Maintenance Guide\|Sega Saturn (Model 2) General Maintenance]]
	* [[Sega Saturn (Model 2) Troubleshooting Guide]]		* [[Sega Saturn (Model 2) Troubleshooting Guide]]

Josh: /* 🔍 PCB Schematics & Service Manual */

2025-05-09T15:48:59Z

🔍 PCB Schematics & Service Manual

← Older revision		Revision as of 16:48, 9 May 2025
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	\|}		\|}

	* For detailed board layouts and service procedures, refer to the [[Sega Saturn Service Manual ~~(Model 2)~~]].		* For detailed board layouts and service procedures, refer to the [[Sega Service Manual - Sega Saturn Pal - 1 June 1995\|Sega Saturn Service Manual]].

	== 📷 Gallery ==		== 📷 Gallery ==

Josh: /* 🔍 PCB Schematics & Service Manual */

2025-05-09T15:04:08Z

🔍 PCB Schematics & Service Manual

← Older revision		Revision as of 16:04, 9 May 2025
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	{\| class="wikitable styled-table" style="width:80%; text-align:center;"		{\| class="wikitable styled-table" style="width:80%; text-align:center;"
	! ~~style="background-color:#f2f2f2;"\|~~ Mainboard (Model 2)		! Mainboard (Model 2)
	! ~~style="background-color:#f2f2f2;"\|~~ Mainboard Schematic		! Mainboard Schematic
	\|-		\|-
	\| [[File:Sega-Saturn-Motherboard-Model-VASG-Top.jpg\|center\|thumb\|300x300px\|Sega Saturn Model 2 Mainboard]]		\| [[File:Sega-Saturn-Motherboard-Model-VASG-Top.jpg\|center\|thumb\|300x300px\|Sega Saturn Model 2 Mainboard]]

Josh at 15:03, 9 May 2025

2025-05-09T15:03:12Z

← Older revision		Revision as of 16:03, 9 May 2025
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	{{Infobox computer		{{Infobox computer
	\| name = Sega Saturn (Model 2)		\| name = Sega Saturn (Model 2)
	\| image = [[File:Sega-Saturn-~~Model2~~-JP.jpg\|250px]]		\| image = [[File:Sega-Saturn-Console-Set-Mk2.jpg\|250px]]
	\| caption = Sega Saturn Model 2 ~~(Japanese version)~~		\| caption = Sega Saturn Model 2
	\| manufacturer = Sega		\| manufacturer = Sega
	\| type = Home video game console		\| type = Home video game console
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	\| weight = 2.0 kg		\| weight = 2.0 kg
	\| os = Sega proprietary BIOS		\| os = Sega proprietary BIOS
	\| predecessor = [[Sega Mega Drive / Genesis]]		\| predecessor = [[Sega Mega Drive / Genesis (Model 1)]]
	\| successor = [[Dreamcast]]		\| successor = [[Dreamcast]]
	\| codename = Saturn		\| codename = Saturn
	\| model = HST-3220 (Model 2)		\| model = HST-3220 (Model 2)
	\| logo = [[File:~~Sega~~ Saturn logo.~~svg~~\|250px]]		\| logo = [[File:SEGA Saturn logo.png\|250px]]
	}}		}}

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	{\| class="wikitable styled-table" style="width:80%; text-align:center;"		{\| class="wikitable styled-table" style="width:80%; text-align:center;"
	! style="background-color:#f2f2f2;"\| Mainboard (Model 2)		! style="background-color:#f2f2f2;"\| Mainboard (Model 2)
	! style="background-color:#f2f2f2;"\| ~~Power Supply Unit~~		! style="background-color:#f2f2f2;"\| Mainboard Schematic
	\|-		\|-
	\| [[File:~~SegaSaturnModel2_Mainboard~~.jpg\|thumb\|~~center\|300px~~\|Sega Saturn Model 2 Mainboard]]		\| [[File:Sega-Saturn-Motherboard-Model-VASG-Top.jpg\|center\|thumb\|300x300px\|Sega Saturn Model 2 Mainboard]]
	\| [[File:SegaSaturn_PSU.jpg\|thumb\|center\|300px\|Sega Saturn Power Supply Unit]]		\| [[File:SegaSaturn_PSU.jpg\|thumb\|center\|300px\|Sega Saturn Power Supply Unit]]
	\|}		\|}
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	== 📷 Gallery ==		== 📷 Gallery ==
	<gallery mode="packed" heights="180">		<gallery mode="packed" heights="180">
	File:Sega-Saturn-~~Model2~~-JP.jpg\|Sega Saturn Model 2 ~~(Japan)~~		File:Sega-Saturn-Console-Set-Mk2.jpg\|Sega Saturn Model 2
	File:Sega-Saturn-~~Model2~~-~~EU.jpg\|Sega Saturn~~ Model ~~2 (Europe)~~		File:Sega-Saturn-Motherboard-Model-VASG-Top.jpg\|Model 2 mainboard
	~~File:SegaSaturnModel2_Mainboard~~.jpg\|Model 2 mainboard		File:Sega-Saturn-Power-Supply-V2-a.jpg\|Power supply unit
	File:~~SegaSaturn_PSU~~.jpg\|Power supply unit		File:Sega-Saturn-Controller-NA-Mk-II-FL.jpg\|Standard Saturn controller (Model 2)
	File:~~SegaSaturn_Controller~~.jpg\|Standard Saturn controller (Model 2)
	~~File:SegaSaturn_CartridgeSlot.jpg\|Cartridge slot detail~~
	</gallery>		</gallery>

	== 🧪 Related Pages ==		== 🧪 Related Pages ==
	* [[Sega Saturn General Maintenance]]		* [[Sega Saturn (Model 2) Maintenance Guide\|Sega Saturn (Model 2) General Maintenance]]
	* [[Sega Saturn Troubleshooting Guide]]		* [[Sega Saturn (Model 2) Troubleshooting Guide]]
	* [[Sega Saturn Capacitor Replacement Guide]]		* [[Sega Saturn (Model 2) Capacitor Replacement Guide]]
	* [[Sega Saturn Controller Repair Guide]]		* [[Sega Saturn Controller Repair Guide]]
	* [[Sega Saturn Region Mod Guide]]		* [[Sega Saturn Region Mod Guide]]

	~~[[Category:Sega Consoles]]~~
	~~[[Category:1990s Video Game Consoles]]~~

	<templatestyles src="Template:StyledTable/styles.css" />		<templatestyles src="Template:StyledTable/styles.css" />
			[[Category:Sega Systems]]

Josh: Automated update by bot

2025-05-09T14:57:00Z

Automated update by bot

New page

{{Infobox computer
| name = Sega Saturn (Model 2)
| image = [[File:Sega-Saturn-Model2-JP.jpg|250px]]
| caption = Sega Saturn Model 2 (Japanese version)
| manufacturer = Sega
| type = Home video game console
| release date = November 22, 1994 (Japan); May 11, 1995 (North America); July 8, 1995 (Europe)
| discontinued = 2000 (Japan); 1998 (North America/Europe)
| price = JP¥44,800 (launch); US$399 (launch)
| cpu = Dual Hitachi SH-2 32-bit RISC @ 28.6 MHz
| memory = 2 MB RAM, 1.54 MB VRAM, 512 KB sound RAM, 4 MB CD buffer RAM
| storage = CD-ROM (2× speed), optional backup RAM cartridge
| display = 320×224 to 704×480, 16.77 million colours (24-bit, 32,768 on screen)
| sound = Yamaha YMF292-F (SCSP): 32-channel PCM/ADPCM, 8–44.1 kHz, 16-bit stereo
| dimensions = 260 mm × 230 mm × 83 mm
| weight = 2.0 kg
| os = Sega proprietary BIOS
| predecessor = [[Sega Mega Drive / Genesis]]
| successor = [[Dreamcast]]
| codename = Saturn
| model = HST-3220 (Model 2)
| logo = [[File:Sega Saturn logo.svg|250px]]
}}

The '''Sega Saturn (Model 2)''' is a 32-bit fifth-generation home video game console developed by Sega. Released in Japan in late 1994 and internationally in 1995, the Saturn is renowned for its advanced dual-CPU architecture and powerful 2D and 3D graphics capabilities, making it a favourite among retro gaming enthusiasts.

== 🧠 Architecture and Processor ==
At the heart of the Sega Saturn is a complex, parallel-processing architecture designed to excel at both 2D sprite manipulation and 3D polygonal graphics. Its main processing components include:
* '''Dual Hitachi SH-2 32-bit RISC CPUs''' running at 28.6 MHz, operating in parallel for increased performance.
* '''Hitachi SH-1''' as the CD-ROM controller.
* Two custom video display processors:
** '''VDP1''' – Handles sprites and polygons (2D/3D graphics).
** '''VDP2''' – Manages backgrounds, scrolling, and effects.
* Additional support chips for sound, DMA, and I/O.

This architecture allowed for advanced graphical effects, but also posed programming challenges due to its complexity.

== 💾 Memory and Storage ==
The Saturn Model 2 features a diverse memory map optimised for graphics and sound:
* '''2 MB main RAM'''
* '''1.54 MB VRAM''' (split between VDP1 and VDP2)
* '''512 KB sound RAM'''
* '''4 MB CD-ROM buffer RAM'''
* '''32 KB backup RAM''' (internal), expandable via optional cartridge

Storage is provided by a '''2× speed CD-ROM drive''', supporting up to 640 MB per disc. Game saves are stored in internal backup RAM or on external RAM cartridges.

== 🖥️ Display and Graphics ==
The Saturn's graphics subsystem is built around its dual VDPs:
* '''Resolution:''' 320×224 to 704×480 pixels (interlaced and non-interlaced modes)
* '''Colour palette:''' 16.77 million (24-bit), with up to 32,768 colours displayed simultaneously
* '''VDP1:''' Renders sprites, polygons, scaling, rotation, and texture mapping
* '''VDP2:''' Handles up to five scrolling background planes, transparency, and special effects

Hardware support for both 2D and 3D graphics made the Saturn especially strong for arcade-style and sprite-based games.

== 🔊 Sound Capabilities ==
Audio on the Saturn is powered by the '''Yamaha YMF292-F (SCSP)''' sound processor:
* '''32 sound channels''' supporting PCM and ADPCM playback
* '''Sampling rates''' from 8 kHz to 44.1 kHz, 16-bit stereo output
* Integrated DSP for effects such as reverb and modulation
* Additional '''Motorola 68EC000''' CPU (11.3 MHz) for sound control

This robust sound system enabled high-quality music and effects, including streaming audio from CD.

== 🎮 Input/Output and Expansion ==
The Saturn Model 2 offers a wide range of connectivity and expansion options:
* '''Controller ports:''' 2 × proprietary 9-pin connectors (supporting digital and analogue pads, multitap)
* '''AV output:''' Composite video, S-Video, RGB SCART (PAL/JP), stereo audio
* '''Serial port:''' For link cable multiplayer
* '''Cartridge slot:''' For backup RAM, ROM cartridges, and RAM expansion (up to 4 MB for certain games)
* '''Communication connector:''' For modem or network peripherals (Japan only)
* '''Power:''' Internal PSU (100–240 V, region dependent)

== 🔍 PCB Schematics & Service Manual ==
<templatestyles src="Template:StyledTable/styles.css" />

The Model 2 Saturn features a revised mainboard with integrated components and simplified circuitry compared to the original model. Service documentation and schematics are available for maintenance and repair.

{| class="wikitable styled-table" style="width:80%; text-align:center;"
! style="background-color:#f2f2f2;"| Mainboard (Model 2)
! style="background-color:#f2f2f2;"| Power Supply Unit
|-
| [[File:SegaSaturnModel2_Mainboard.jpg|thumb|center|300px|Sega Saturn Model 2 Mainboard]]
| [[File:SegaSaturn_PSU.jpg|thumb|center|300px|Sega Saturn Power Supply Unit]]
|}

* For detailed board layouts and service procedures, refer to the [[Sega Saturn Service Manual (Model 2)]].

== 📷 Gallery ==
<gallery mode="packed" heights="180">
File:Sega-Saturn-Model2-JP.jpg|Sega Saturn Model 2 (Japan)
File:Sega-Saturn-Model2-EU.jpg|Sega Saturn Model 2 (Europe)
File:SegaSaturnModel2_Mainboard.jpg|Model 2 mainboard
File:SegaSaturn_PSU.jpg|Power supply unit
File:SegaSaturn_Controller.jpg|Standard Saturn controller (Model 2)
File:SegaSaturn_CartridgeSlot.jpg|Cartridge slot detail
</gallery>

== 🧪 Related Pages ==
* [[Sega Saturn General Maintenance]]
* [[Sega Saturn Troubleshooting Guide]]
* [[Sega Saturn Capacitor Replacement Guide]]
* [[Sega Saturn Controller Repair Guide]]
* [[Sega Saturn Region Mod Guide]]

[[Category:Sega Consoles]]
[[Category:1990s Video Game Consoles]]

<templatestyles src="Template:StyledTable/styles.css" />