Power Amp In And Power Protect Assys - Pioneer VSX-AX4AVi-S Service Manual

1

3.24 POWER AMP IN and POWER PROTECT ASSYS

A
NECK6
NECK8
B
NECK8
NECK6
SBMUTE
AMUTE
A-12V
AGC
SBR
AGSBR
AGR
AGRS
AGLS
AGL
C
SBL
AGSBL
18 16
19 17
D
CN5701
XKP3065
NC
1
NC 2
NC
3
WT
4
OL DET
5
DC DET
6
POSI_2
7
POSI_1
8
GNDU
9
10
NC
E
NC 11
NC
11
NC
10
WT 9
OL DET
8
DC DET
7
POSI_2
6
POSI_2 5
GNDU
4
POSI_1 3
NC
2
NC
1
CN5702
XKP3065
F
O P
72
1
2
5604
VH+
1
VH-
2
3
4
A-12V
5
51048-0500
CN5603
52044-1945
1
2
3
4
5
C
6
7
8
9
R
10
11
RS
12
13
LS
14
15
L
16
17
18
19
L 1/8
CN103
14 12 10 8 6 4 2
15 13 11 9 7 5 3 1
R5750
1SS355
D5701
0
OL DET
Q5704 Q5701
(22k)
POWER PROTECT ASSY
P
(AWX8659)
2
3
R
CN5301
(C)
Q
CN5001
POSI_2 DET
POSI_1 DET
Q5702
RT1P241M
(22k)
Q5705
R5747
0
(22k)
PROTECTION DETECT
LOCK DET
OL DET
DC DET
TEMP1,2
VSX-AX4AVi-S
3
4
C
CP
CP
R5601 C5601 R5602
1k 4.7/50 220
Q5601
2SD2704K
R5604
10k
R5710
22k
Q5706
RT1P241M
2
3
(22k)
IC5701
BA4560RF-TBB
(22k)
NORMAL DETECT
L H
H L
H L
L H
4
OUTPUT LEVEL DET
1