LG 32LK450 Service Manual page 35

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 C5069 C5004
0.1uF 0.1uF
10uF
16V 10V 16V
AMP_RESET
AUD_MASTER_CLK
+1.8V_AMP2 +1.8V_AMP2
L5054
L5053
C5064 C5005
10uF 0.1uF C5072
10V 10uF
16V
10V
OPT WOOFER OPT
R5054 100 WOOFER
AUD_LRCH
R5060 100 WOOFER
AUD_LRCK
R5004 100 WOOFER
AUD_SCK
R5005 33 WOOFER
AMP_SDA
R5063 33 WOOFER
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 C5070
0.1uF 0.1uF
50V
+3.3V_Normal 50V
WOOFER
C5052
22000pF
C5066
50V
22000pF
L5052
50V
C5057
1uF
25V
WOOFER
C5009
1000pF
50V WOOFER
WOOFER
BST1A
1
C5053
VDR1A THERMAL
2
1uF 25V
/RESET 57
3
WOOFER
AD
C5073 4
0.1uF 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
C5008
0.1uF
16V
L5055
WOOFER
C5055
C5058
1uF
10uF C5051
25V WOOFER
10V 0.1uF
16V
OPT WOOFER
C5060
1000pF
50V
OPT OPT
WOOFER WOOFER OPT
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
0.01uF
10uF
C5036
50V
35V 390pF
OPT D5002 50V
1N4148W
R5052 R5059
100V 12 12
OPT
WOOFER WOOFER
WOOFER
WOOFER
D5003
NC C5068 R5061 R5071
42 WOOFER WOOFER
1N4148W 12 12
25V 1uF
VDR2A C5030
41 100V WOOFER WOOFER
22000pF
BST2A
40 OPT
50V
39 PGND2A_2
PGND2A_1 C5037
38
390pF NRS6045T100MMGK
37 OUT2A_2 50V
WOOFER
OUT2A_1
36
NRS6045T100MMGK
35 PVDD2A_2
WOOFER
C5038
PVDD2A_1
34 390pF
50V
33 PVDD2B_2 D5004
1N4148W
PVDD2B_1 R5050 R5065
32
100V
12 12
OUT2B_2
WOOFER WOOFER
31
OUT2B_1
30
PGND2B_2
29
+24V
C5034
C5056 C5033
10uF
0.1uF 0.1uF 35V
50V 50V
C5067
22000pF
WOOFER
50V
R5008
0
POWER_DET
OPT
+3.5V_ST
R5055
WOOFER
R5070 100 10K
C
WOOFER
R5012
B
Q5050
AMP_MUTE
2SC3052
10K
WOOFER E
WOOFER
WOOFER
L5004 R5058
10.0uH C5041
NRS6045T100MMGK
0.1uF
4.7K
50V
C5039
L5005
10.0uH 0.47uF
NRS6045T100MMGK
50V
WOOFER
C5042
WOOFER
0.1uF R5053
50V
4.7K
WOOFER
L5006
10.0uH C5043 R5023
WOOFER
0.1uF 4.7K
C5040
50V
0.47uF
L5007
10.0uH 50V
WOOFER C5044 R5074
0.1uF 4.7K
50V
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