LG S90QY - Safety Precautions; Safety and Regulatory

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3. PVDD
FIG 3. Woofer PVDD
20~23.5 V is OK
6
6
WC732 4.7uF
/50V
WC734
100nF
/100V
WC731
4.7uF
/50V
DGND
DGND
DGND
WR738
180K
DGND
WC742
100nF
/50V
WC736
100nF
NC
WC752
22uF
/25V
WC757
22uF
/25V
WC756
4.7nF
+12VA
WR739
18K
WC758
NC
DGND
PVDD
WC739
10nF
WR756
2.4K
WR747
0
(S)
WC755
22uF
/25V
WL708
10UH
WC748
100nF
/50V
WIC703
1
BOOT
2
VIN
3
EN
4
SS/TR
5
RT/CLK
6
PWRGD
7
VSENSE
8
COMP
9
GND
10
PH
11
[EP]
WR745
120K
(1%)
WR754
20K
WD701
SMAB36
WC759
22uF
/25V
WR755
33K
WC760
NC
+12VA
WR750
390K
WR751
150K
P_SENSE
PVDD TO 12VA
PVDD from SMPS : 36.5V
FRQ:1MHz
R1
R2
3.3V