LG 37LV3500 Service Manual page 31

WOOFER AMP
+3.3V_Normal
+1.8V_AMP2
IC503
WOOFER
AP1117E18G-13
IN ADJ/GND
3 Vd=1.4V 1
2
WOOFER
OUT
C5059 WOOFER C5004
C5069
0 . 1 u F 10uF 0 . 1 u F
16V 16V
10V
AMP_RESET
AUD_MASTER_CLK
+1.8V_AMP2 +1.8V_AMP2
L5054
L5053
C5064 C5005
10uF 0 . 1 u F
10V
16V
OPT WOOFER
R5054
AUD_LRCH
R5060
AUD_LRCK
R5004
AUD_SCK
R5005
AMP_SDA
R5063
AMP_SCL
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
120 mA
+24V
C5061
0 . 1 u F
50V
+3.3V_Normal
WOOFER
C5052
22000pF
50V
L5052
C5009
1000pF
WOOFER
50V
WOOFER
BST1A
1
VDR1A THERMAL
2
/RESET 57
3
WOOFER
AD
C5073 4
0 . 1 u F DGND_1
5
GND_IO
WOOFER 6 IC502
CLK_I WOOFER
7
C5071 VDD_IO
8
C5062 1000pF
EAN60969603
50V DGND_PLL
9
100pF
R5064 AGND_PLL
50V 10
3.3K LF
11 NTP-7100
AVDD_PLL
12
DVDD_PLL
13
GND
14
+1.8V_AMP2
C5072 C5008
10uF
0 . 1 u F
10V
L5055
OPT WOOFER
C5058
10uF C5051
0 . 1 u F
10V
OPT WOOFER
100
WOOFER
100 WOOFER
100 WOOFER
33
WOOFER
33 WOOFER
OPT OPT
OPT
WOOFER WOOFER
C5063 C5054 C5014 C5015 C5065
18pF 18pF 22pF 22pF 22pF
50V 50V 50V 50V 50V
SMD SMD SMD
D5001 WOOFER
WOOFER
1N4148W R5013 R5073
OPT
100V 12 12
R5010
OPT
3 . 3
C5035
390pF
50V
C5032
C5050
C5070 0 . 0 1 u F
10uF
0 . 1 u F C5036
50V
35V 390pF
OPT D5002 50V
1N4148W
R5052 R5059
100V 12 12
OPT
WOOFER WOOFER
C5066
22000pF
50V
WOOFER
C5057
1uF
25V
WOOFER
WOOFER
D5003
NC R5061 R5071
42 WOOFER WOOFER
1N4148W 12 12
41 VDR2A C5030
100V WOOFER WOOFER
22000pF
BST2A
40 OPT
50V
39 PGND2A_2
PGND2A_1 C5037
38
390pF
OUT2A_2 50V
37
WOOFER
OUT2A_1
36
PVDD2A_2
35 WOOFER
C5038
PVDD2A_1
34
390pF
50V
PVDD2B_2 D5004
33
1N4148W
PVDD2B_1 R5050 R5065
32
100V 12 12
OUT2B_2
31 WOOFER WOOFER
OUT2B_1
30
PGND2B_2
29
+24V
C5034
C5056 C5033
10uF
0 . 1 u F 0 . 1 u F 35V
WOOFER C5067
WOOFER 22000pF
50V
R5008
0
POWER_DET
C5060 OPT
1000pF
50V
+3.5V_ST
WOOFER
R5055
WOOFER
R5070 100 10K
C
WOOFER
R5012
B
Q5050
AMP_MUTE
2SC3052
10K
WOOFER
E WOOFER
WOOFER
L5004
R5058
10.0uH C5041
NRS6045T100MMGK
0 . 1 u F
4.7K
C5039
L5005
10.0uH 0 . 4 7 u F
NRS6045T100MMGK
50V
WOOFER
C5042
WOOFER
0 . 1 u F
WOOFER
L5006
10.0uH C5043 R5023
NRS6045T100MMGK
WOOFER
0 . 1 u F 4.7K
C5040
0 . 4 7 u F
L5007
10.0uH 50V
NRS6045T100MMGK
WOOFER C5044
0 . 1 u F
WOOFER_L+
WOOFER_L-
WOOFER_R+
WOOFER_R-
WOOFER_NTP
WOOFER_L+
WOOFER_L
WOOFER_L-
WOOFER_R+
WOOFER_R
WOOFER_R-
WOOFER
WOOFER_L+
5
WOOFER_L-
4
3
WOOFER_R+
2
WOOFER_R-
1
SMAW250-05
P5050
GP2R 20101023
15