JVC KD-SX841R Service Manual page 32

KD-SX841R
4.6 LA6579H-X (IC561) : 4-Channel bridge driver
• Pin layout & Block diagram
VIN1-A
VIN1+A
VCCP1
VO+
VO-
VO2+
VO2-
FR
VO3+
VO3-
VO4+
VO4-
VCCP2
VIN4
VIN4G
1-32 (No.49790)
1
2
3
4
5
6
7
Power system
GND
FR
8
9
10
11
12
33k
11k
13
14
[H]
VIN1_SW
[L]
[H]: OP-AMP_A
[L]: OP-AMP_B
33k
11k
-
+
All outputs ON/OFF
H : ON
L : OFF
3.3VREG
(External:PTP Tr)
33k
33k
-
+
28
VIN1
27
VIN1-B
-
+
26
VIN1+B
25
Signal system
S-GND
power supply
24
VIN1-SW
23
MUTE
MUTE
22
VREFIN
Power system GND
FR
FR
Signal system
power supply
21
VCCS
20
3.3VREG
19
REGIN
18
VIN2G
11k
-
17
VIN2
+
16
VIN3G
11k
15
VIN3