Yamaha Disklavier DKC55 Compatibility Guide

All Disklavier Models

The DKC55 is a playback-only Mark III controller without a CD drive. It plays Standard MIDI Files and older E-SEQ songs from internal storage or floppy disks, but it cannot record performances.

At a Glance

Generation
Mark III playback-only controller without CD
Associated Models
Mark III playback-only modelsDGA1/DGB1DGP1
Uses
Internal Storage2DD floppy2HD floppy
Recording
Playback only
Plays
E-SEQSMF0SMF1
PianoSoft Types
SoloPlus
Upgrade Options
MIDI/app playback

Bluetooth MIDI
Yamaha controller upgrades

DKC-850
Media/storage replacement

Nalbantov

Things to Know

This system is playback only.

If a MIDI file advances the measure counter but the piano stays silent, reset only Setup (FUNC. → Reset → Setup). Do not select Memory Disk or Factory Initialization; those options can erase internally stored songs.

A DKC-850 can replace this controller, but the installation requires the correct model-specific harness—not an ordinary VGA cable. My DKC-850 conversion-cable guide explains the original Yamaha cable and the replacement adapters made by Richie Hayes. On a PRO piano, the replacement operates in STANDARD mode and does not preserve PRO/XP recording.

If a computer reports an original Yamaha Disklavier floppy as unformatted, do not format it. My Disklavier floppy-recovery guide explains why this happens, and my tested USB floppy-drive guide identifies hardware that can read 720 KB/2DD disks.

Nalbantov replacements are model-specific. Purchase the Nalbantov configured for this model; do not assume that a generic Gotek—or a Nalbantov configured for another controller—will fit.