Block Diagram - Alto OEX-400 Service Manual

3. Block Diagram

1 2
X1-3A
X1
X2
X3
CH INPUT
D
(CH1~3)
BAL/UNBAL
XLR&TRS
X1-3B
5
T 6
4
R 3
2
S 1
XLR&TRS
X9
XLR
1
2
3
CH INPUT
CH4/5
BAL/UNBAL
X4
4
5
C
2
3
1
LEFT(MONO)
X5
4
5
2
3
1
RIGHT
TAPE OUT TAPE IN
CH6/7
STEREO INPUT
X6
B
AUX RETURN
X8
4
5
2
3
1
STEREO UNBAL INPUT
DSP BOARD
A
PRESETS
MUTE
DSP FOOT
1 2
3 4
LOW HI
2-STAGE EQ
LEVEL
DSP/FX AUX1 POST
LOW HI
2-STAGE EQ
LEVEL
DSP/FX AUX1 POST
LOW HI
2-STAGE EQ
LEVEL
DSP/FX AUX1 POST
AUX RETURN LEVEL
3 4
5
7-STAGE EQ
J13
LOW BOOST
CON4
MAIN LEVEL
MONITOR LEVEL
MASTER METER
MONITOR METER
5
- 4 -
6 7
POWER MODEII
RMS 300W
4
3
2
1
+22V
POWER SUPPLY
POWER_CONNECT
-22V
OEX-400_MIXER
6 7
8
X13
R
T
S
MASTER SPK OUT1
D
X14
R
T
S
MASTER SPK OUT2
+15V
+5V
-15V
R
C
T
X4
S
MONITOR OUT
STEREO OUTPUT
R
T
X5
S
PHONES OUT
STEREO OUTPUT
B
R
T
X7
S
FX SEND
R
T
X6
S
FOOTSWITCH
A
8