JVC KD-SX60WT Service Manual page 33

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6.6 LA6579H-X (IC561) : 4-Channel bridge driver
• Pin layout & Block diagram
VIN1-A
VIN1+A
VCCP1
VO+
VO-
VO2+
VO2-
FR
TE
L 13942296513
VO3+
VO3-
VO4+
VO4-
VCCP2
VIN4
VIN4G
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1
2
3
4
5
6
7
Power system
GND
FR
8
9
10
11
12
33k
11k
13
14
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2 9
8
[H]
VIN1_SW
[L]
[H]: OP-AMP_A
[L]: OP-AMP_B
33k
11k
-
+
All outputs ON/OFF
H : ON
L : OFF
Power system GND
Q Q
3 6 7 1 3
3.3VREG
(External:PTP Tr)
33k
+
33k
-
+
.
9 4 2 8
28
VIN1
27
VIN1-B
-
+
26
VIN1+B
25
Signal system
S-GND
power supply
24
VIN1-SW
23
MUTE
MUTE
22
VREFIN
FR
FR
1 5 0 5 8 2 9 9 4
Signal system
power supply
21
VCCS
20
3.3VREG
19
REGIN
18
VIN2G
11k
- 17
VIN2
16
VIN3G
11k
15
VIN3
m
co
9 9
2 8 9 9
(No.49868)1-33