LG TCH-M540 Service Manual page 28

I IC801 TDA8571J
I IC901 LC75811
V P1
MODE
15 1
10
IN1
30 K •
11
IN2
30 K •
12
SGND
13
IN3
30 K •
14
IN4
30 K •
3
PGND1
V P2 V P3 V P4
8 16 23
+
2
-
+
4
-
V
ref
+
7
-
+
5
-
9
DIAGNOSTIC
+
17
-
+
19
-
V ref
+
22
-
+
20
-
6 18
21
PGND2 PGND3 PGND4
- 2-24 -
OUT1+
OUT1-
OUT2+
OUT2-
V DIAG
OUT3+
OUT3-
OUT4+
OUT4-
MGG153