27LS5400, 27LS540T (CHASSIS:LD02M) - LG TV Service Manual (repair manual). Page 29

Read LG 27LS5400 / 27LS540T (CHASSIS:LD02M) Service Manual online

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.
AMP
JP700
JP702
C717
1000pF
50V
OPT
Q702
MMBT3906(NXP) 
E
B
C
R711
1K
M52(H/P JACK)
D710
KDS226
A
AC
C
HP_LOUT
HP_DET
AUD_LRCH
SB_MUTE
Q705
MMBT3904(NXP)
M52(H/P JACK)
E
B
C
Q703
MMBT3904(NXP)
M52(H/P JACK)
E
B
C
C739
0.1uF
50V
JK700
KJA-PH-0-0177
M52(H/P JACK)
3
DETECT
4
L
5
GND
1
R
Q707
MMBT3904(NXP)
M52(H/P JACK)
E
B
C
C719
1000pF
50V
OPT
HP_ROUT
+3.3V_ST
C724
47uF
25V
C737
0.1uF
50V
C738
0.1uF
50V
D709
MMBD6100
M52(H/P JACK)
A2
C
A1
C740
0.1uF
50V
JP701
Q706
MMBT3906(NXP) 
M52(H/P JACK)
E
B
C
C704
0.1uF
50V
C707
0.1uF
50V
Q701
MMBT3904(NXP)
M52(H/P JACK)
E
B
C
C700
0.1uF
50V
Q700
MMBT3904(NXP)
E
B
C
C735
0.47uF
16V
C734
0.47uF
16V
C718
10uF
25V
C716
10uF
25V
+19V_AMP_VCC
C742
4.7uF
50V
R718
3.3
R717
3.3
R710
1K
M52(H/P JACK)
R700
3.3K
1%
R730
4.7K
R729
4.7K
R728
4.7K
R727
4.7K
R735
220K
OPT
JP703
D700
MMBD6100
A2
C
A1
C701
100pF
50V
C730
390pF
50V
C731
390pF
50V
C729
390pF
50V
C728
390pF
50V
C726
1uF
25V
C727
1uF
25V
L709
10.0uH
L701
10.0uH
L706
10.0uH
L700
10.0uH
C723
22000pF
50V
C722
22000pF
50V
C711
22000pF
50V
C710
22000pF
50V
C702
1000pF
50V
R714
3.3K
M52(H/P JACK)
R712
100
JP705
R707
100
TP702
R709
100
HP_MUTE
R720
3.3
TP701
D
7
0
6
1
0
0
V
1
N
4
1
4
8
W
_
D
I
O
D
E
S
 
OPT
+3.3V_ST
AUD_SCK
R705
10K
R719
3.3
AMP_SCL
D
7
0
5
1
0
0
V
1
N
4
1
4
8
W
_
D
I
O
D
E
S
 
OPT
C705
33pF
50V
+19V
SB_MUTE
Q704
MMBT3904(NXP)
M52(H/P JACK)
E
B
C
C706
1000pF
50V
JP704
C709
1000pF
50V
+3.3V_AMP
R703
100
NTP_MUTE
C708
33pF
50V
AUD_MASTER_CLK
AUD_LRCK
TP700
P700
SMAW250-H04R
WAFER-ANGLE
1
2
3
4
+19V_AMP_VCC
AMP_RST
R713
1K
M52(H/P JACK)
R708
33K
OPT
R701
10K
D
7
0
7
1
0
0
V
1
N
4
1
4
8
W
_
D
I
O
D
E
S
 
OPT
JP707
D
7
0
4
1
0
0
V
1
N
4
1
4
8
W
_
D
I
O
D
E
S
 
OPT
AMP_SDA
SB_MUTE
JP706
R706
47K
M52(H/P JACK)
R733
10K
M52(H/P JACK)
R738
12K
R736
470
+3.3V_AVDD
C712
47uF
25V
C715
0.1uF
50V
C714
0.1uF
50V
C713
47uF
25V
R734
220K
R769
100
R767
100
R768
100
SE
(1,2)
R724
1K
M52(BUZZER)
R715
10K
M52(BUZZER)
R723
0
OPT
R722
0
M52(BUZZER)
R721
100
M52(BUZZER)
BU700
PKM13EPY-4002-B0
M52(BUZZER)
1
2
+5V_GENERAL
(1, 2)
R702
2K
M52(BUZZER)
R704
1K
M52(BUZZER)
+5V_GENERAL
(1, 2)
R716
2K
M52(BUZZER)
BUZZER
(1,2)
C720
10uF
10V
M52(H/P JACK)
C721
10uF
10V
M52(H/P JACK)
Q709
MMBT3906(NXP) 
M52(BUZZER)
E
B
C
Q708
MMBT3904(NXP)
M52(BUZZER)
E
B
C
Q710
MMBT3904(NXP)
M52(BUZZER)
E
B
C
VA701
20V
M52(H/P JACK)
VA702
20V
M52(H/P JACK)
VA703
20V
OPT
R737
12K
C743
1uF
25V
JP708
JP709
IC700
NTP-7500L
1
AGND_PLL
2
AVDD_PLL
3
DVDD_PLL
4
LF
5
DGND_PLL
6
GND_1
7
DGND
8
DVDD
9
SDATA
10
WCK
11
BCK
12
SDA
13
SCL
14
/FAULT
15
MONITOR0
16
MONITOR1
17
MONITOR2
18
BST2B
19
PGND2B
20
OUT2B_1
21
OUT2B_2
22
PVDD2_1
23
PVDD2_2
24
PVDD2_3
25
OUT2A_1
26
OUT2A_2
27
PGND2A
28
BST2A
29
VDR2
30
AGND
31
VCC_5
32
VDR1
33
BST1B
34
PGND1B
35
OUT1B_1
36
OUT1B_2
37
PVDD1_1
38
PVDD1_2
39
PVDD1_3
40
OUT1A_1
41
OUT1A_2
42
PGND1A
43
BST1A
44
/RESET
45
AD
46
GND_IO
47
CLK_I
48
VDD_IO
49
[EP]
C703
4.7uF
10V
C725
10uF
16V
M52(BUZZER)
Pop-up noise killer
Headphone block
SPK_R-
SPK_R+
SPK_L-
SPK_L+
6     11
AUDIO IC
CLOSE TO IC
CLOSE TO IC
MUTE control
BUZZER
1000Hr->2000Hr
11.10.27
11.11.05
2.2uF->0.1uF
11.11.05
2.2uF->0.1uF
11.10.27
1000Hr->2000Hr
AUDIO AMP
2.7K->220K
11.10.27
11.10.27
Apply->OPT
11.10.27
22K->12K
11.12.20
R737 3K(EU) 
Countmeasure 
of latch up
12.05.23
3K DELETE 0RJ3001D677
11.11.05
0->1OOohm
OPTION
11.11.15
11.11.21
11.11.21
11.11.21
12.01.12
1uF addition
for NTP7500L
12.01.12
NTP7250 -> NTP7500L
12.01.17
0.1uF->4.7uF
12.02.03
EAE30840401 25V .164 ->
EAE38362601 16V .01825
OPT->APPLY
12.02.17
Audio Crosstalk improve
12.02.17
OPT->APPLY
Audio Crosstalk
improve
DMxx52/Mxx52
Mxx32
EAX64559005
2012.05.23
Display
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