Casio MG-500 - Page 2

CONTENTS
1 SCHEMATIC DIAGRAM...
1-1 PCBs M385-MA1M, CN1, CN2.
1-2. PCB M4385-MA2M..
2 PCB VIEW...
2-1 PCB M385-MA1M
2-2 PCB M385-MA2M
2:3 PART NUMBER REFERENCE TABLE.
2-4 PCB M385-MA1IM
2-5 PCB M385-MA2M.
3.
CIRCUIT
DESCRIPTION.
3-1
WIRING
DIAGRAM.
3-2
BLOCK
DIAGRAM.
3-3
CIRCUIT
BLOCK.
4 CPU (uPD78C10G) PIN FUNCTION:
5 GATE ARRAY F.
6
INTERNAL
CIRCUIT
OF
GATE
ARRAY
(1)
Frequency
Detection
Counte
(2)
Peak
Detection
Circuit.
(3)
Address
Latch
(4)
MIDI
Buffer.
7 “MIDI CIRCUIT.
8 RESET CIRCUIT.
9
RELATION
BETWEEN
FRET
PITCH
&
FREQUENCY,
10 TEST MODE
11 ADJUSTMENTS..
PARTS LIST
EXPLODED VIEW..
OPERATIONS.
MIDI Implementation Chart.