VSX-330
Protection Circuit
5
4
3
2
1
6
D
C
A
B
D
C
A
B
5
4
3
2
1
6
R
22
3
R
22
1
R60
R
53
R
2445
R
2444
R
2453
R
2451
C
2302
R
2450
R224
C
98
C
99
R227
R
22
0
R
22
2
R49
R50
R
22
5
R52
C
21
1
Q14
C
100
Q1
6
R
23
0
R
23
1
R229
C215
Q
20
8
Q
202
0
R241 5
Q
201
6
R240 0
C
2311
R244 3
Q
202
2
Q
201
9
R58
D
20
1
Q207
C
21
6
C
21
3
R
2411
R
2396
R
241
6
C
230
3
C
2301
R
2401
85
100
IC2023
R230FL
R230FR
Q206
R51
R
54
R230SR
R230SL
R
22
6
D202
Q2021
Q2017
Q
202
5
(MAIN CPU)
Q205
R59
Q15
R230C
C
2300
PROTECT1
V+5V_DET
POWER DC DETECTION CIRCUIT
OVERLOAD DECTION CIRCUIT
SPK.DC
PROTECTION
CIRCUIT
NORMAL:3.3V
NORMAL:3.3V
DC PROTECTION:0.66~0V
ASO PROTECTION:0.83V
DC PROTECTION:1.45V
Overload and DC Protection Circuit
AMP5 ASSY
MAIN ASSY
CPU ASSY
REG ASSY