1
2
3
4
5
6
A
B
C
D
E
F
G
H
MW12
■
BLOCK DIAGRAM & LEVEL DIAGRAM
28CA1-2000010491
<Page 1>
1/2
2/2
R
L
(MONO)
(MONO)
[+4dBu]
[-10Bv]
[-7.8dBu]
MIC
MIC
JKB73 1/2
INSERT I/O
[0dBu]
LINE
P48V
+48V
SW506
3-Stage EQ
3-Stage EQ
3-Stage EQ
3-Stage EQ
3-Stage EQ
LD504
[0dBu]
[0dBu]
5
7
6
[-30 ~ +14dBu]
[0dBu]
5
7
2
3
1
5
7
3
1
5
7
3
1
5
7
3
1
2
1
6
7
5
7
1
6
7
6
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[0dBu]
[-14dBu]
[-14dBu]
[-14dBu]
[-10dBu]
[-10dBu]
[-10dBu]
[-6dBu]
[-6dBu]
[-14dBu]
[-14dBu]
[-6dBu]
[-14dBu]
[0dBu]
[0dBu]
12
13
16
15
20
21
4
1
1
10
3
3
4,
26
2
2
12MHz
Vbus
GND
D+
D-
LIN
RIN
LO
RO
[0dBu]
[0dBu]
[-16dBu]
[0dBu]
[0dBu]
LOW
LOW
MID
MID
HIGH
HIGH
LOW
MID HIGH
Q801~804
Q701~704
Q601~604
Q501~504
LD501,601,
701,801
Q901~904
QA01~A04
(CH1 ~ 4)
(CH5/6,7/8)
R
L
R
L
R
L
(CH9/10,11/12)
RETURN
2TR IN
Yellow
Yellow
ST
Yellow
SW01
+30dBu
+20dBu
+10dBu
0dBu
-10dBu
-20dBu
-30dBu
-40dBu
-50dBu
-60dBu
+30dBu
+20dBu
+10dBu
0dBu
-10dBu
-20dBu
-30dBu
-40dBu
-50dBu
-60dBu
AC POWER
ADAPTOR
PA 20
Changeable width : ±15dB
Lo : 100Hz (Shelving)
Mid : 2.5KHz (peaking)
Hi : 10KHz (shelving)
80Hz 12dB/Oct
GAIN
+30dB
PEAK
(RED)
VR505,605,705,805
LD502,602,
702,802
LD902,A02
LD903,A03
LDB01,C01
LDB02,C02
LD503,603,703,803
LD901,A01
PEAK
(RED)
CH Fader
HPF
HPF
GAIN
Trim
[6 ~ 50dB]
HA
HA
HA
HA
HA
HA
Nominal [-10dB]
Nominal [-10dB]
Nominal [-10dB]
Nominal [-6dB]
Nominal [-6dB]
Nominal [-6dB]
Yellow
PFL
Yellow
PFL
PFL
Nominal [-6dB]
TO ST/TO C-R
Nominal [-6dB]
2TR IN
Nominal [-6dB]
Nominal [-6dB]
Nominal [-6dB]
Nominal [-6dB]
Nominal [-6dB]
Nominal [-10dB]
Nominal [-10dB]
Nominal [-16dB]
Gain +10dB
Gain +10dB
Gain +10dB
GAIN
+10dB
ON/STANDBY
F01,02
250V 2A
GAIN
[16 ~ 60dB]
Gain
CH +6dB
ST CH +11dB
EFECT RTN +11dB
11dB
Gain
CH,ST,CH,EFFECT,RTN 0dB
RETURN,2TR IN +6dB
GROUP -4dB
Gain
CH 0dB
ST CH 0dB
Gain +4dB(RI=600 )
Gain +20dB
Gain -20dB
fc 24KHz, 12dB/oct
REG
USB
fc 24KHz, 12dB/oct
3.7V
USB
AUDIO
PCM2900
(BUS-
Powered)
AUX1 SEND
BA
BA
BA
BA
CH Fader
CH Fader
BAL/PAN
BAL/PAN
PAN
ST
ST
G1-2
G1-2
G1-2
BA
AUX1
AUX1
AUX1
AUX2
AUX1
AUX2
PRE
PRE
PRE
AUX2
RETURN
ST
AUX2
AUX2 SEND
GROUP
Fader
SWE01
TO ST
ICE03
ST
Fader
[-10dBu]
[-10dBu]
[-6dBu]
[-6dBu]
+12V
+12V
QG01
QG03
QG04
QG02
CR/PHONES
LDH01-12
Meter 12 Point & Peak
(3mW@40 )
(S): Soldered
Meter 12 Point & Peak
LDH13-24
IC101-28P
+15V
+15V
-15V
-15V
ST/GROUP
SEND
+4dBu
ST OUT
+4dBu
CR OUT
+4dBu
PHONES
REC OUT
-10dBv
(-7.8dBu)
GROUP OUT
+4dBu
AUX1
AUX2
1
2
R
R
L
L
R
L
Clip Level
Clip Level
Clip Level
Clip Level
Clip Level
GROUP Fader
[Nominal : -10dB]
ST Master
[Nominal : -10dB]
C-R/PHONES
[Nominal : -16dB]
CH AUX
[Nominal : -6dB]
ST CH AUX
[Nominal : -6dB]
RETURN
2TR IN
[Nominal : -6dB]
AUX SEND
[Nominal : -6dB]
AUX SEND [+4dBu]
GROUP OUT [+4dBu]
ST OUT [+4dBu]
CR OUT [+4dBu]
PHONES [3mW@40 ]
RETURN [+4dBu]
2TR IN [-10dBV]
[-7.8dBu]
Clip Level
CH Level
ST CH Level
[Nominal : -10dB]
Clip Level
Clip Level
CH IN LINE Gain:Min [+10dBu]
ST CH IN LINE Gain:Min [+10dBu]
ST CH IN [-10dBu]
ST CH IN MIC Gain:Min [-16dBu]
ST CH IN LINE Gain:Max [-34dBu]
ST CH IN MIC Gain:Max [-60dBu]
CH IN LINE Gain:Max [-34dBu]
CH IN MIC Gain:Max [-60dBu]
CH IN MIC Gain:Min [-16dBu]
A
ux
1
A
ux
2
S
T
L
S
T
R
G
R
O
U
P
1
G
R
O
U
P
2
P
F
L
L
P
F
L
R
P
F
L
C
T
R
L
Note:
The level display and the level diagram in the block diagram are the values in the following.
Level VR : Nominal
BAL/PAN : Max(each channel)
IN
OUT
COM
IN
COM
IN
OUT
OUT
COM
1
D
09
D
10
D03,04 D07,08
D14
ZD03,04
43V
ZD01,02
60V
Q01
3
2
D
05
D
06
D
01
D
02
+15V
+15V
+12V (LED)
+12V (LED,METER)
-15V
-15V
IN
COM
OUT
+48V
(PHANTOM)
+48V (PHANTOM)
Regulator
Regulator
Regulator
Regulator
[-60 ~ -16dBu]
[-60 ~ -16dBu]
[-34 ~ +10dBu]
[-34 ~ +10dBu]
[-10dBu]
80
80