This page was last modified 16:25, 11 October 2016 by Mars2000you.


The NHK NSFG-05 FM Sound Synthesizer Unit II is the same Yamaha SFG cartridge as the SFG-05, it was manufactured by Yamaha and released under the brand name NHK.

It is build around a YM2164 (OPP) sound chip and YM2148 MIDI UART. Official price: ¥29,800

This cartridge has a 32kB ROM (MBIOS 2.0) which supports MIDI input, so it allows the internal FM synth to be played by any external MIDI keyboard.

It has 2 MIDI connectors (MIDI-IN and MIDI-OUT), 2 audio stereo connectors (L and R) and a music keyboard connector.

NHK has also released the UCN-01 UNit Connector as NUCN-01 and the FM Music Composer II (YRM-55 or YRM-501) as NYRM-55.