42LD460, 42LD460C, 42LD450, 42LD461C, 42LD461F (CHASSIS:LB01B) - LG TV Service Manual (repair manual). Page 38

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THERMAL
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.
C7834
390pF
50V
C7826
10uF
35V
AMP_SDA
+1.8V_AMP
R7823
4.7K
AUD_LRCH
C7838
0.47uF
50V
C7814
22pF
50V
OPT
0.1uF
C7842
50V
C7829
22000pF
50V
R7816
12
R7817
12
L7804
AD-8770
15uH
2S
1S
1F
2F
C7806
100pF
50V
AUD_SCK
+1.8V_AMP
R7809
3.3
OPT
R7821
4.7K
R7831
3.3
OPT
AUD_MASTER_CLK
C7823
22000pF
50V
D7802
100V
1N4148W
OPT
0.01uF
C7846
50V
OPT
R7815
12
C7835
390pF
50V
SPK_R-
C7813
22pF
50V
OPT
0.1uF
C7824
50V
+3.3V_Normal
C7819
22000pF
50V
R7802
100
SPK_L+
C7810
1000pF
50V
0.1uF
C7843
50V
R7827
0
AMP_RESET_N
R7813
12
R7806
3.3K
+1.8V_AMP
C7803
0.1uF
16V
R7818
12
R7828
3.3
OPT
R7803
100
0.1uF
C7840
50V
R7822
4.7K
0.1uF
C7830
50V
C7833
10uF
35V
C7802
10uF
10V
C7825
1uF
25V
0.1uF
C7807
16V
0.01uF
C7845
50V
OPT
0.01uF
C7847
50V
OPT
D7801
100V
1N4148W
OPT
L7801
BLM18PG121SN1D
C7817
22pF
50V
OPT
0.1uF
C7818
16V
0.01uF
C7844
50V
OPT
AMP_MUTE_HOTEL
SPK_L-
+1.8V_AMP
R7829
3.3
OPT
C7831
0.01uF
50V
OPT
C7805
10uF
10V
OPT
R7824
0
0.1uF
C7841
50V
C7808
1000pF
50V
AMP_MUTE
0.1uF
C7820
50V
C7828
22000pF
50V
AMP_VCC
R7830
3.3
OPT
R7814
12
+3.3V_Normal
SPK_R+
C7836
390pF
50V
+3.5V_ST
R7812
12
C7822
1uF
25V
AMP_VCC
C7800
0.1uF
16V
AUD_LRCK
C7804
0.1uF
16V
R7819
12
SPK_L+
AMP_SCL
R7807
0
OPT
D7803
100V
1N4148W
OPT
L7802
BLM18PG121SN1D
C7827
1uF
25V
Q7800
2SC3052
E
B
C
D7800
100V
1N4148W
OPT
R7808
100
L7803
AD-8770
15uH
2S
1S
1F
2F
0.1uF
C7832
50V
0.1uF
C7811
L7800
BLM18PG121SN1D
TP7800
C7821
1000pF
50V
C7837
390pF
50V
C7816
1uF
25V
R7811
10K
R7820
4.7K
R7826
0
POWER_DET
R7801
100
R7810
10K
C7815
10uF
10V
OPT
SPK_L-
R7825
0
R7800
1
SPK_R-
C7801
10uF
10V
OPT
SPK_R+
C7839
0.47uF
50V
P7800
WAFER-ANGLE
1
2
3
4
IC7801
NTP-7000
EAN60969601
1
BST1A
2
VDR1A
3
/RESET
4
AD
5
DGND_1
6
GND_IO
7
CLK_I
8
VDD_IO
9
DGND_PLL
10
AGND_PLL
11
LF
12
AVDD_PLL
13
DVDD_PLL
14
GND
15
DGND_2
16
DVDD
17
SDATA
18
WCK
19
BCK
20
SDA
21
SCL
22
MONITOR0
23
MONITOR1
24
MONITOR2
25
/FAULT
26
VDR2B
27
BST2B
28
PGND2B_1
29
PGND2B_2
30
OUT2B_1
31
OUT2B_2
32
PVDD2B_1
33
PVDD2B_2
34
PVDD2A_1
35
PVDD2A_2
36
OUT2A_1
37
OUT2A_2
38
PGND2A_1
39
PGND2A_2
40
BST2A
41
VDR2A
42
NC
43
VDR1B
44
BST1B
45
PGND1B_1
46
PGND1B_2
47
OUT1B_1
48
OUT1B_2
49
PVDD1B_1
50
PVDD1B_2
51
PVDD1A_1
52
PVDD1A_2
53
OUT1A_1
54
OUT1A_2
55
PGND1A_1
56
PGND1A_2
57
EP_PAD
R7804
33
R7805
33
C7809
18pF
50V
C7812
18pF
50V
IC7800-*1
KIA1117ST18
Replacement
2
OUT
3
IN
1
ADJ/GND
IC7800
AP1117E18G-13 
OUT
INADJ/GND
AUDIO[NTP]
GP2_Saturn7M
Ver. 1.1
96
2.5mm -> 2.0mm changed
SPEAKER_L
SPEAKER_R
120 mA
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