56
SC-27
1
2
3
4
A
B
C
D
E
F
1
2
3
4
Low Voltage Detection for Amplifier Power Supply
C
N
4000
-
8
INTERFACE
ASSY
F
ICEPOWER AMP ASSY
Q
UCOM
IC
8
001
71
DISPLAY
ASSY
K
C
N
7012
-10
C
N
7003
-13
C
N8
202
-13
XOLERR
XOLERR
DIGITAL MAIN
ASSY
E
C
N
1250
-
8
C
N
1403
-13
C4214
ACG706
8
-A-T
C4114
6
8
0p
ACG706
8
-A-T
C4122
ACG7073-A
2125
2200p
C4156
0.1u/16
C4259
N
M
C4159
N
M
C4115
1u/10
G
N
D
G
N
D
Q410
8
2SD2704K
Q420
8
2SD2704K
R4173
100k
R4127
1.5k
1%
R4112
22k
R4111
220k
R4211
220k
R4212
22k
R4125
1k 1%
R4126
1.5k
1%
R4124
27k
1%
R4213
N
M 1%
R4113
N
M 1%
AMPO
V
ERLOAD
AMPO
V
ERLOAD
V
S_CHK1
V
D_CHK1
R427
8
N
M
R417
8
N
M
C4116
1u/16
C4216 1u/16
ICC1-A
V
R
IC4200
V
d_check
1
V
s_check
2
Discharge
3
OC_mon
4
Enable
5
Thermal
6
In_A_Ch2
7
Out_A_Ch2
8
In_B_Ch2
9
Out_B_Ch2
10
In_C_Ch2
11
Pwm-_ch2
12
Pwm+_ch2
13
Mod_Ch2
14
ZobelSense2
15
Average2
16
Average1
17
N
TC_in
1
8
ZobelSense1
19
Mod_ch1
20
Pwm-_ch1
21
Pwm+_ch1
22
In_C_Ch1
23
Out_B_Ch1
24
In_B_Ch1
25
Out_A_Ch1
26
In_A_Ch1
27
N
C
2
8
V
dd
29
U
V
P_en
30
Main_Gnd
31
V
ss
32
Ref_ch1
33
CS1_ch1
34
CS2_ch1
35
RECout_ch1
36
V
in__ch1
37
DC_FB_ch1
3
8
V
in_ch2
39
DC_FB_ch2
40
RECout_ch2
41
CS1_ch2
42
CS2_ch2
43
Ref_ch2
44
ACH1479-A
C4213
100u
ACH1479-A
C4112 100u
ACH1479-A
C4212 100u
ACH1479-A
C4113
100u
MODULATOR
Output of Logic Circuit becomes “L”.
AMPDISABLE of modulator IC
becomes “L” when abnormal.
Disable Signal from micro-computer.
N
ormally “H”.
R4002
100
R4003
100
R4001
100
R400
8
8
.2k
R4007
8
.2k
R4006
8
.2k
R4005
8
.2k
R4004
100
IC4003
2
1
IC4003
4
3
IC4003
TC74
V
HC04FTS1
8
9
IC4003
10
11
IC4004
3
1
2
14
7
IC4004
6
4
5
14
7
IC4004
8
9
10
14
7
IC4004
TC74
V
HC0
8
FTS1
11
12
13
14
7
R4013
100
R4014
100
R4015
100
R4016
100
G
N
D
C4006
0.1u/16
R401
8
0
V
+5
V
G
N
D
R40
8
0
3.3k
R40
8
1
3.3k
R40
8
2
3.3k
R40
8
3
3.3k
R40
8
4
12k
R40
8
5
12k
R40
8
6
12k
R40
8
7
12k
C4031
0.1u/16
C4032
0.1u/16
C4033
0.1u/16
C4034
0.1u/16
G
N
D
G
N
D
G
N
D
G
N
D
D4007 1SS352
D400
8
1SS352
D4009 1SS352
D4010 1SS352
D4011
1SS352
D4012
1SS352
D4013
1SS352
D4014
1SS352
G
N
D
C4035
0.1u/16
Q4015
2SC4154(EFG)
R40
88
12k
R40
8
9
12k
R4091
47k
IC4400
5
SR ch
SL ch
FR ch
FL ch
IC4600
5
SBR ch
SBL ch
IC4700
5
C ch
G
N
D
R4043
R4044
100
100
R4045
10k
C4021
1000p
CH