KORG PROPHECY SERVICE MANUAL
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Page 1
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
Page 2
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