JVC KW-XC828 Service Manual page 46

KW-XC828
LA6579H-X (IC681) : 4-Channel bridge driver
1. Pin layout & Block diagram
1
VIN1-A
2
VIN1+A
3
VCCP1
4
VO+
5
VO-
6
VO2+
7
VO2-
FR
FR
VO3+ 8
VO3- 9
VO4+ 10
VO4- 11
VCCP2 12
VIN4 13
VIN4G 14
1-46
VIN1_SW
[H]: OP-AMP_A
[L]: OP-AMP_B
Power system
GND
33k
11k
[H]
[L]
-
+
33k
Signal system
11k
power supply
-
+
All outputs ON/OFF
H : ON
MUTE
L : OFF
Power system GND
Signal system
power supply
3.3VREG
(External:PTP Tr)
33k
11k
-
+
33k
11k
-
+
28
VIN1
27
VIN1-B
26
VIN1+B
25
S-GND
24
VIN1-SW
23
MUTE
22
VREFIN
FR
FR
21
VCCS
20
3.3VREG
19
REGIN
18
VIN2G
17
VIN2
16
VIN3G
15
VIN3