Difference between revisions of "Power Base Converter"

From Sega Retro

Line 3: Line 3:
 
| imgwidth=225px
 
| imgwidth=225px
 
| title=Power Base Converter/Mega Adaptor/Master System Converter
 
| title=Power Base Converter/Mega Adaptor/Master System Converter
 +
| maker=[[Sega]]
 +
| createdfor=[[Sega Mega Drive]]
 
| usa=1989
 
| usa=1989
 
| europe=1989
 
| europe=1989

Revision as of 01:21, 3 December 2010

SegaMegaAdaptor.jpg
Power Base Converter/Mega Adaptor/Master System Converter
Manufacturer: Sega

The Power Base Converter (Mega Adaptor in Japan and Master System Converter in Europe), sometimes called the Master Deck, was a Sega-vended accessory available at the Sega Mega Drive's launch that allowed for the use of Sega Master System cards or cartridges with a Sega Mega Drive/Genesis console. One of the key design features of the Mega Drive is its compatibility with its immediate predecessor, the Master System, as the Mega Drive's design is based upon the Master System's design, albeit enhanced and extended in many areas. As the cartridge slot of the Mega Drive is shaped differently than that of the Master System, and because its games could not be played directly through the Mega Drive, Sega released the Power Base Converter, an accessory that is placed between a Master System cartridge and the Mega Drive, allowing the user to play the previous generation of Sega games without the need for an extra console.

The Power Base Converter does not contain any Master System components but acts as a pass-through port. The converter contained 2 slots. The top slot was for cartridge based games. The front slot was for card based games and accessories. The Power Base Converter would be fully compatible with the Mega Drive 2, were it not for the different shape of the Mega Drive 2's casing. One can remove or modify the PBC casing, allowing it to work on a Genesis 2. Instead, one must rely on the differently shaped Master System Converter II, but unfortunately this accessory was only released in Europe. The Master System Converter II is also fully compatible with the Mega Drive 1, but lacks the ability to run cards.

In order to achieve backwards compatibility, the original Master System central processor and sound chip (the Z80 and SN76489) are included in the Mega Drive/Genesis and the new Video Display Processor is capable of the Master System VDP's mode 4 (though it cannot run in modes 0, 1, 2, or 3). Once an 8-bit game is inserted, the system's bus controller chip (later integrated with the I/O chip into a single multi-purpose ASIC) will put the Z80 in control leaving the 68000 idle.

Both 2-button Master System pads and standard Genesis pads can be used to play SMS games. Due to slight differences in how the Genesis pads operate, some Master System games may inadvertently cause the wrong set of inputs to be selected in a 3/6-button pad and prevent input from working properly. In this case a Master System controller must be used. Like the Master System, the PAUSE button is not part of the gamepad connector and instead is implemented as a pushbutton switch on the Power Base Converter or similar devices.

There was at least one unauthorized third-party SMS adapter released for the Sega Mega Drive/Genesis—the no-frills Mega Master by Datel. It also lacked the SMS card slot, and had the SMS PAUSE button mounted on the side of the unit.

Gallery

US version

EU version

JP version


Sega Mega Drive
Topics Technical specifications (Hardware comparison) | History | List of games | Magazine articles | Promotional material | Merchandise | Cartridges | TradeMark Security System
Hardware Japan | North America | Western Europe | Eastern Europe | South America | Asia | South Korea | Australasia | Africa
EZ Games | Genesis 3 | LaserActive | Mega Jet | Mega PC | Mega Play | Mega-Tech System | Mega 6 | Nomad | Teradrive | Mega Drive Mini | Mega Drive Mini 2
New Mega Drive | Tianli VCD/DVD Players | "Consoles on a chip" | Licensed clones (Magic 2 | Mega Game II | Power Pegasus | Super Bitman)
Unlicensed clones
Add-ons Game Box | Power Base Converter | Mega-CD | 32X (Mega-CD 32X) | Mega Modem | Demo System DS-16
Cases Sega Genesis Nomad Carrying Case | System Carry Case
Controllers Control Pad | Six Button Control Pad | 6 Button Arcade Pad | Arcade Power Stick 6B | Konami Justifier | MK-1470
Action Chair | Activator | Arcade Power Stick | Keyboard | MegaFire | Mouse | Mega Stick | Menacer | Remote Arcade System | Ten Key Pad | Third Party Controllers
Accessories 4 Way Play | AC adaptor | Cleaning System | Control Pad Extension Cord | Game Factory | Genesis Speakers | Headset | HeartBeat Catalyst | Microphone | Region converter cartridges | Mega Terminal | Nomad PowerBack | RF Unit | SCART Cable | Stereo Audio Video Cable | Team Player | Video Monitor Cable | Third-party AC adaptors | Third Party Accessories
Network services Sega Channel | Sega Game Toshokan | Mega Anser | Mega Net | TeleBradesco Residência | XB∀ND
Development tools ERX 308P | ERX 318P | Sprobe | SNASM68K | SNASM2 (Mega Drive) | SNASM2 (32X) | PSY-Q Development System (Mega Drive) | PSY-Q Development System (32X) | 32X CartDev | Sega Mars Development Aid System | Sega 32X Development Target
Unreleased Edge 16 | Floppy Disk Drive | Mega Play 1010 | Sega VR | Teleplay System | Video Jukebox