Difference between revisions of "Power Base Converter"

Revision as of 09:55, 27 March 2016

Power Base Converter/Mega Adaptor/Master System Converter

Manufacturer: Sega

Release	Date	RRP	Code

The Power Base Converter, known as Mega Adaptor (メガアダプタ) in Japan, Master System Converter in Europe and Adaptador Para os Jogos Master System in Brazil, is a peripheral for the Sega Mega Drive allowing it to play Sega Master System cards or cartridges.

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 cost-reduced Mega Drive II, were it not for the different shape of the Mega Drive II's casing.

One can remove or modify the PBC casing, allowing it to work on a Mega Drive II. The alternative is the differently shaped Master System Converter II, though this accessory was only released in Europe. The Master System Converter II is also fully compatible with the original Mega Drive, 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, so cannot run SG-1000 games). Once a Master System 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 Mega Drive pads can be used to play SMS games. Due to slight differences in how the Mega Drive 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.

Gallery

Power Base Converter (US)
Cartridge flap opened (US)
Underside (US)
Attached to Genesis 1 (US)
Master System Converter (EU)
Master System Converter II (EU)
Mega Adaptor (JP)

Promotional material

PowerBaseConverter MD ES PrintAdvert.jpg

ES print advert
MegaDrive UK PrintAd 1990-10.jpg

UK print advert
MegaDrive UK PrintAd 1990-11.jpg

UK print advert
SegaEuropesNo1 SMS MD UK PrintAd.jpg

UK print advert

Physical scans

Mega Drive, US
Cover

Mega Drive, EU
Cover

Mega Drive, EU (II)
Cover

Mega Drive, JP
Cover

Mega Drive, BR
Cover

References

External links

Sega of Japan catalogue page (Japanese)

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

@@ Line 9: / Line 9: @@
 | md_rrp_us=35.00 {{fileref|GamePro US 029.pdf|page=50}} <!--If we could get a price from the actual release date rather than 1991, that'd be swell. -->
 | md_date_eu=1990
+| md_code_eu=1620
 | md_rrp_uk=29.99 {{fileref|MegaDrive UK PrintAd 1990-10.jpg}}
 | md_type_eu_1=II