Block Diagram - Korg A4 Service Manual

INPUT
LEVEL
A/D
LPF
DSP
D/A
OUTPUT
L/MONO
LEVEL IND.
CURCUIT
LEVEL
I
ND
.
TUNE
TUNER
CIRCUIT
1
^
L-J-j
j
{
^
MUTE
CURCUIT
w
DRAM
OUTPUT
LEVEL
CPU
ROM 256Kbit
RAM 6Kbit
PHOTO
COUPLER
'n
PHONI
*V
MINI
MIDI
OUT
VOL
PEDAL
EXT
CONTROL
SWITCH LED
—
-
H
mm
t
Iv
*
BANK/PROG
VALUE
PARMETER
.
BLOCK
DIAGRAM