— 1 —
CONTENTS
Page
Specifications ............................................................................................................................................ 1
Block Diagram ........................................................................................................................................... 3
Circuit Description ..................................................................................................................................... 4
Major Waveforms .................................................................................................................................... 11
Printed Circuit Boards ............................................................................................................................. 12
Schematic Diagrams ............................................................................................................................... 13
Exploded View ....................................................................................................................................... 19
Parts List ................................................................................................................................................. 21
SPECIFICATIONS
GENERAL
Keyboard:
88 full size keys with initial touch response
Polyphony:
24 notes maximum
Tones:
10 (with layering)
Tuning curves:
3 types (preset for each tone)
Digital effects:
REVERB
Demo tunes
Number of tunes:
10
Titles:
1. Grande valse brillante
2. Turkish March
3. One-Eighty
4. Opaque Mist
5. Harmonious blacksmith
6. Dream Sequence
7. Fugue in G minor
8. Moveable Blues
9. Rainbow
10. Ave Maria
Playback:
Repeat sequential play of all tunes; playback always starts from begin-
ning of tune
Manual memory
Type:
Real-time recording and playback
Number of songs:
2 (SONG A, SONG B)
Capacity:
Approximately 1,200 notes (SONG A + SONG B)
Back-up:
Power supplied by batteries or AC adaptor
Pedal:
Damper
Other features
Transpose (
±
1 octave, semitone steps)
Tuning (adjustable, A4 = 440 Hz
±
50 cents)
MIDI:
8-channel multi-timbre reception
Speakers:
14 cm
×
2 (6 W + 6 W)
Terminals:
PHONES (standard stereo jack
×
1)
LINE OUT (standard mono jack
×
2)
Output impedance: 1.0 K
Ω
Output voltage: 1.5 V (RMS) MAX
LINE IN (standard mono jack
×
2)
Input impedance: 47 K
Ω
Sensitivity: 200 mV
MIDI OUT/IN (DIN jack
×
2)
Summary of Contents for CPS-85
Page 13: ...13 SCHEMATIC DIAGRAMS Main PCB JCM423 MA1M 1 2 8 7 6 5 3 4...
Page 14: ...14 Sub PCBs JCM423 MA2M MA3M MA4M 10 9...
Page 15: ...15 Console PCBs JCM423 CN1M CN2 CN3M...
Page 16: ...16 Keyboard PCB JCM886T KY1M...
Page 17: ...17 Keyboard PCB JCM886T KY2M...
Page 18: ...18 Keyboard PCB JCM886T KY3M...
Page 20: ...20 35 33 35 31 30 34 32 SP 2...
Page 24: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926 MA0700571A...
