LG TCH-M900 Service Manual page 27

I IC601 PT2313L
LIN1
LIN1 15
LIN2
LIN2
14
LIN3
LIN3
13
RIN3
RIN3 9
RIN2
RIN2
10
RIN1
RIN1
11
Supply
2
VDD AGND
LOUT LIN LOUD_L BOUT_L
17 16 12
Voume &
Loudness
Input
Selector
& Gain
Serial Bus Decoder & Latches
Control
Voume
&
Loudness
3 1 7 6 8
REF ROUT RIN LOUD
BIN_L TREB_L
18
19 4
RB
Bass Treble
Treble
Bass
RB
21 20 5
BOUT_R BIN_R TREB_R
- 2-23 -
Speaker
ATT
25 LFOUT
Mute
Speaker
ATT
23 LROUT
Mute
28 CLK
DATA
27
26 DGND
Speaker
ATT
RFOUT
24
Mute
Speaker
ATT
22 RROUT
Mute