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General| Type | Digital Piano |
|---|---|
| Number of Keys | 88 |
| Key Action | Graded Hammer Standard (GHS) |
| Touch Sensitivity | Hard/Medium/Soft/Fixed |
| Voices | 14 |
| Effects | Reverb, Chorus |
| Reverb | Yes |
| Chorus | Yes |
| Metronome | Yes |
| Recorder | Yes |
| Recording | 1 song, 2 tracks |
| Amplifiers | 20W x 2 |
| Speakers | 12 cm x 2 |
| Polyphony | 128 |
| Sound Source | AWM (Advanced Wave Memory) Stereo Sampling |
| Pedals | 3 (Damper, Sostenuto, Soft) |
| Connections | MIDI In/Out |
| Included Accessories | Owner's Manual |
| Sound Engine | AWM (Advanced Wave Memory) Stereo Sampling |
Identification of buttons, knobs, and switches on the control panel.
Identification of audio, MIDI, power, and pedal jacks/terminals.
Steps for removing exterior assemblies like headphone hanger, top board, main unit, etc.
Detailed list of screws and steps for removing circuit boards and assemblies.
Steps for desoldering and removing the power transformer from the PSM circuit board.
Steps for removing the VR circuit board using screws [9A].
Steps for removing the PN circuit board using screws [9B].
Remove screws [260A] to detach GHD EBUS L and MK SUB boards.
Remove screws [260B] and [262] to detach the GHD M circuit board.
Remove screws [260C] and [262] to detach the GHD H circuit board.
Remove GHD circuit board and then remove rubber contacts.
Steps to release white key from stopper, move rearward, and remove.
Assemble hammer assembly into frame, add stopper (L88_W). Four types of hammers exist.
Required items and initial settings for conducting tests.
Procedure to start the test program by pressing specific keys and power.
How to select and execute test items using keys and the DEMO/SONG button.
Verifies Main and Wave ROM versions by checking specific key presses and sounds.
Checks ROM checksum connected to the CPU bus for correct operation.
Checks RAM connection condition connected to the CPU bus.
Tests erase, write, read functions for specific Flash ROM banks.
Checks ROM checksum connected to the tone generator LSI bus.
Checks Effect RAM connection to the tone generator LSI bus.
Lists items stored in flash memory (Metronome, Tuning, User Song, etc.).
Procedure to initialize settings by holding C7 and turning power on.
Lists user song, backup data (10YDP.BUP), and loaded song data.
PC, UX16, USB-MIDI Driver, and Musicsoft Downloader setup.
Step-by-step guide for backing up data using Musicsoft Downloader.
Detailed breakdown of the system booting process and decision points.
Warning about replacing critical components with specified parts only.
High-level block diagram showing system interconnections.
Diagram showing physical layout and wiring of main circuit boards.
Detailed circuit diagram for the DM component (part 2/3).
Detailed circuit diagram for the DM component (part 3/3).
Circuit diagram for the HP component.
Circuit diagram for the MAL2 component.
Circuit diagram for the PN component.
Circuit diagram for the VR component.
Detailed circuit diagram for the GHD EBUS L component.
Circuit diagram for the MK SUB component.
Detailed circuit diagram for the GHD M component.
Detailed circuit diagram for the GHD H component.
Circuit diagram for the DJACK component.
Circuit diagram for the PEDAL component.
Circuit diagram for the PSM component.
