Replacing your Blank LCD Screen in Earlier Disklaviers

A blank LCD screen can render your Yamaha MX-100II Disklavier nearly unusable. You can replace these with brand-new LCD screens, which are still available. In the MX-100II and HQ-100SX, this is Yamaha part VN635201, although it differs for other units. As of , the screens are not available on Yamaha 24×7—it appears they stopped listing … Read more

Upgrades for your Yamaha Disklavier—Where to Start?

A practical guide to Yamaha Disklavier upgrade options, including PianoStream, Nalbantov floppy emulators, replacement power supplies and LCD screens, DKC-850 and DKC-900 upgrades, firmware updates, SSD replacements, and compatibility considerations for Mark I, Mark II, Mark III, Mark IV, E3, ENSPIRE, and DKC-900 systems.

Disklavier Compatibility Table: Which Models Play MIDI or E-SEQ?

Customers routinely ask me whether their Disklaviers can play MIDI, or only E-SEQ (often written ESEQ), what services they support, and whether they can be upgraded. I’ve constructed this chart of Disklavier compatibility to answer those questions. This table lists various Disklavier controllers and their corresponding floppy disk formats, recording capabilities, and playback options. Please … Read more

Can My HQ-100 or MX-100II Play MIDI Files?

Usually, no. The Yamaha MX-100II and its Japanese counterpart, the HQ-100, normally play Yamaha’s proprietary E-SEQ files from floppy disk rather than standard MIDI files. However, some later-production units do appear to support SMF Type 0 MIDI playback from floppy disk, depending on ROM version. For the broader model picture, see my Disklavier Compatibility Table. … Read more

Comprehensive Guide to Yamaha Disklavier Repairs and Fixes

This page collects the most common Yamaha Disklavier repair FAQs—power issues, dying screens, networking issues, floppy media, and more—organized by generation/model with step-by-step fixes and upgrade paths. Can I upgrade my Yamaha Disklavier? This is such a common question that Disklavier upgrades and modifications now have their own page! Read about PianoStream, which brings internet … Read more