— 1 —CONTENTSPageSpecifications ............................................................................................................................................ 1Block Diagram ........................................................................................................................................... 4Circuit Description ..................................................................................................................................... 5After sensor adjustment ............................................................................................................................ 9Diagnostic program ................................................................................................................................. 13Printed Circuit Boards ............................................................................................................................. 17Schematic Diagrams ............................................................................................................................... 19Exploded View ........................................................................................................................................ 29Parts List ................................................................................................................................................. 30SPECIFICATIONSGENERALKeyboard: 61 standard-size keys; 5 octaves; touch response (Can be assigned oneof three touch curves.) /after touch (Can be assigned one of four touchcurves.)InterfaceDisplay Screen: 320 × 240-dot LCD panel with menu interfaceControllers: Dial, control buttons, control sliders (Setting results appear on displayscreen.)Tones: 562 total (507 preset tones + 15 drum sounds + 40 user tones); layer andsplit; variable split pointRhythm Instrument Tones: 65Polyphony: 64 notes maximum (32 maximum for some tones)Digital Effects: 4-channel DSP (240 types) + Reverb (15 types) + Chorus (20 types) +Master (50 types)Digital Drawbar FunctionDrawbars: 9 (16', 5 1/3', 8', 4', 2 2/3', 2', 1 3/5', 1 1/3', 1')Digital Drawbar Types: Sine, VintagePercussion: Second, ThirdClick: On, OffAuto AccompanimentRhythm Patterns: 120 Presets + 10 User Rhythms (130 total)Tempo: Variable (226 levels: =30 to 255)Chords: 3 types (CASIO CHORD, FINGERED, FULL RANGE CHORD)Rhythm Controller: Start/Stop; Intro 1, 2; Fill in BACK, NORMAL, NEXT; Break; Variations 1to 4; Sync Start/Stop; Ritardando; Fade In/Out; Ending 1, 2Accompaniment volume: 0 to 127 (128 levels)One Touch Presets: Optimal tone, tempo, layer/auto harmonize settings to match rhythm; 4presets for each built-in rhythm, 1 assignable for user rhythmAuto Harmonize: 12 types; adds harmony notes to melody in accordance with auto accom-paniment chord fingerings.Arpeggiator: 15 types; automatic arpeggio using notes of a chord played on the key-boardInteractive Accomp: Automatic adjustment of auto accompaniment to match keyboard playSong SequencerNumber of Songs: 10Number of Record Tracks: 17 (system track + external tracks 1 through 16)Record Methods: Realtime, StepMemory Capacity: Approximately 40,000 notes (10 songs)