Ic804 (Tb2931Hq) - LG MAX220UB Service Manual

3. IC804 (TB2931HQ)

3-1. BLOCK DIAGRAM
C1
C1
C1
C6
C1
5 V
Play
R1
Mute
10 1
Ripple TAB
IN1
11
IN2
12
13 Pre-GND
IN3
15
16 AC-GND
IN4
14
4 Stby
22 Mute
2-17
6 20
V V
CC2 CC1
Out1 (+)
9
PW-GND1
8
Out1 (−)
7
Out2 (+)
5
PW-GND2
2
Out2 (−)
3
Out3 (+)
17
PW-GND3
18
Out3 (−)
19
Out4 (+)
21
PW-GND4
24
Out4 (−)
23
25
Offset/short
+B
R
L
R
L
R
L
R
L