KORG PROPHECY SERVICE MANUAL

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SERVICE MANUAL

FWD [m@@

SOLO SYNTHESIZER

M

Mulfi Oscillator Synthesis System

CONTENTS

1. SPECIFICATIONS .................................................................. 1
2. FULL VIEW .....................................

3. DISASSEMBLY ...................................................................... 4
4. BLOCK DIAGRAM ............................................................... 10
5. CIRCUIT DIAGRAMS .. 11
6. P.C. BOARDS ...... ....20
7. TEST MODE ........ ...29
8. REFERENCE DAT 44
9. PARTS LIST .......................................................................... 59

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1. SPECIFICATIONS

TECHNICAL SPECIFICATIONS

I) SOUND GENERATION
METHOD
2) SOUND SOURCE

3) KEYBOARD
4) CONTROLS

5) EFFECTS

6) PRESERVE DATA

7) PRESETABLE PARAMETERS :
8) PRESETS-USER :
-FACTORY
-CARD
9) ARPEGGIATOR SECTION
PRESET PATTERNS-FACTORY :
-USER
-CARD
10) DEMO. SONG
11) MEMORY CARD

12) INPUT/OUTPUT JACK
CONNECTIONS

13) DISPLAY

MOSS
(Multi Oscillator Synthesis System)
MONOPHONIC 2 OSCILLATORS (max) + SUB OSCILLATOR

' . + NOISE GENERATOR

37 NOTES WITH VELOCITY & AFTERTOUCH SENSITIVITY
OUTPUT LEVEL ,

P.E.PARAMETER KNOB X 5

SPEED KNOB

SW X40

PITCH BEND WHEEL

MODULATION WHEEL

X-Y-Z CONTROLER (WHEEL & RIB 0N CONI'ROLER)
POWER SW

7 EFFECTS
DISTORTION,WAH,P~EQ,CHORUS/FLANGER+DELAY
or REVERE.

Accumulators maintain presets, patterns .& global
-parameters with battery backup

644 PAMMETERS/ IPROGRAM

128 PROGRAMS

128 PROGRAMS (can be user changed & recalled)

64 PROGRAMS (optional)

5 PATTERNS

5 PATTERNS

10 PATTERNS (optional)

16 SONGS

"FUJITSU'CARD (SRAM card with battery backup)
for optional program data & atpeggiator pattern memory
OUTPUT (LEFT, RIGHT) (1/4 phone)
ASSIGNABLE FOOT SW INPUT (1/4" phone)
for optional parameter control

by momentary SW

ASSIGNABLE FOOT PEDAL INPUT (1/4" phone)
for optional parameter control

by variable resistor pedal

ECS IN (std. DIN conn.)

MIDI (IN, OUT, THRU) (std. DIN conn.)

ACVIN (std. IEC conn.)

MEMORY CARD SOLT . (custom)

HEADPHONE OUTPUT (1/8" stereo mini
phone)

40X 2 CHARACTER LCD WITH LED BACKLIGHT
LED (RED) X 30