13
2 Electrical Section
2
POWER BOARD_1/2 Circuit Diagram
OPEN:MUTEON
VREF
+15
+15
+5
+5
-15
+5
+5
SERVOMute/Live
FROM MAIN
+15
+5
+5
VX
VY
VFB
+15
+15
-15
-15
VFB
+15
+15
-15
-15
GainG
MLPOW
MHPOW
MtrSrcH/OFF
MtrSrcL/OFF
FanPWMOff/On
FAN
R32
10K2%
EN
11
IN1
5
IN2
7
VREF
9
BOOT1
4
OUT1
3
OUT2
1
BOOT2
8
SENSE
10
VS
2
GND
6
U10
L6203
D1
S2L20U
C1
CE0.022u
C2 CE0.022u
C3
NON
R10
0.33/2W
R12
NON
D2
S2L20U
R14
1K
C7
CE0.22u
R18
10K
D5
1SS130
D6
1SS130
C9
CE0.1u
FB
3
INV1
2
NONI1
1
INV2
15
NONI2
16
+5
12
REF
14
C1
8
E1
9
E2
10
OC
13
DEAD
4
C2
11
C
5
R
6
GND
7
U8
UPC494
D7
1SS130
D8
1SS130
+
5
-
6
7
U2B
M5220L
D9 1SS130
D10
1SS130
R1
10K2%
R19
10K
R2
1K1%
R3
1K1%
R4
1K1%
C11
PO0.022u/50V
R28
2.2K
C13
PO0.01u/50V
R30
4.7K
C14
PO0.01u/50V
CP1
CE0.1u
C15
PO0.01u/50V
R31
4.7K
FB
3
INV1
2
NONI1
1
INV2
15
NONI2
16
+5
12
REF
14
C1
8
E1
9
E2
10
OC
13
DEAD
4
C2
11
C
5
R
6
GND
7
U7
UPC494
D11
1SS130
R20
10K
D12
1SS130
D13
1SS130
+
3
-
2
1
8
4
V+
V-
U3A
M5220L
D1
4
Q1
2
Q1
3
D2
5
Q2
7
Q2
6
D3
12
Q3
10
Q3
11
D4
13
Q4
15
Q4
14
CLK
9
CLR
1
U9
74HC175
R33
4.7K
D14
1SS130
R21
10K
+
5
-
6
7
U3B
M5220L
D15
1SS130
D16
1SS130
R22
10K
R5
10K2%
R6
10K2%
D17
1SS130
D18 1SS130
+
5
-
6
7
U5B
M5220L
R7
1K1%
R8
1K1%
R9
1K1%
R29
2.2K
C12
PO0.022u/50V
C16
PO0.01u/50V
C17
PO0.01u/50V
R34
4.7K
CP2
CE0.1u
1
2
CN1
5566-02A
EN
11
IN1
5
IN2
7
VREF
9
BOOT1
4
OUT1
3
OUT2
1
BOOT2
8
SENSE
10
VS
2
GND
6
U11
L6203
D3
S2L20U
C4
CE0.022u
C5
CE0.022u
C6
NON
R11
0.33/2W
R13
NON
D4
S2L20U
R15
1K
C8
CE0.22u
C10
CE0.1u
2
1
3
Q1
DTA114EF
2
1
3
Q9
DTC114EF
C24
PO0.1u/50V
R43
1K
R44
680
VR1
10KVR
R49
100K
R45
100
R51100K
C26
PO0.033u/50V
+
3
-
2
1
8
4
V+
V-
U2A
M5220L
C20
PO4700p/50V
2
3
1
4
5
13
U6A
NJU201A
C28
PO0.068u/50V
R23
10K
R16
1.2K
VR3
1KVR
C25
PO0.1u/50V
R46
1K
R47
680
VR2
10KVR
R50
100K
R48
100
R52 100K
C27
PO0.033u/50V
+
3
-
2
1
8
4
V+
V-
U5A
M5220L
C23
PO4700p/50V
15
14
16
U6D
NJU201A
C29
PO0.068u/50V
R24
10K
R17
1.2K
VR4
1KVR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN2
5483-15AX
+15
-15
1
2
3
4
CN9
5566-04A
R27
10K
C51 NON
R67
NON
R69
4.7K
R70
4.7K
C52
NON
R68
NON
CP5
CE0.1u
CP6
CE0.1u
CP7
CE0.1u
CP8
CE0.1u
CP11
CE0.1u
CP12
CE0.1u
OfsetG
GainC
OfsetC
CP13
CE0.1u
+5
7
6
8
U6B
NJU201A
10
11
9
U6C
NJU201A
+5
+5
CP14
CE0.1u
CP15
CE0.1u
+15
-15
+
C53
220u/63V
+
C54
220u/63V
MotorGainH/L
PFC
VFC
PFG
VFG
1
2
D23
NON
R100
3.3K
R101
3.3K
1
2
D24
NON
C55
CE0.1u
C56
CE0.1u