DOWNLOAD LG 37LN548C / 37LN549C / 37LP360H / 37LP361H (CHASSIS:LD3AC) Service Manual ↓ Size: 7.25 MB | Pages: 38 in PDF or view online for FREE

Model
37LN548C 37LN549C 37LP360H 37LP361H (CHASSIS:LD3AC)
Pages
38
Size
7.25 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
37ln548c-37ln549c-37lp360h-37lp361h-chassis-ld3ac.pdf
Date

LG 37LN548C / 37LN549C / 37LP360H / 37LP361H (CHASSIS:LD3AC) Service Manual ▷ View online

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.
USB DOWN STREAM
3AU04S-305-ZC-(LG)
JK1105
1
2
3
4
5
RCLAMP0502BA
OPT
D1100
+5V_USB
SIDE_USB_DM
22uF
16V
C1117
SIDE_USB_DP
+3.3V_Normal
SPDIF_OUT
0 . 1 u F
16V
C1131
10K
R1104
DELETE
Fiber Optic
2F01TC1-CLM97-4F 
JK1103
3
VIN
2
VCC
1
GND
4
SHIELD
22uF
16V
C1109
DELETE
100pF
50V
C1121
10uF
16V
C1110
DELETE
1K
R1125
HEAD_PHONE
10uF
16V
C1118
HEAD_PHONE
1000pF
50V
C1116
OPT
10K
R1130
HEAD_PHONE
+3.5V_ST
HP_DET
+3.3V_Normal
3.3K
R1129
HEAD_PHONE
1K
R1128
HEAD_PHONE
HP_ROUT
1K
R1155
HEAD_PHONE
SIDE_HP_MUTE
10uF
16V
C1119
HEAD_PHONE
1000pF
50V
C1115
OPT
HP_LOUT
KJA-PH-0-0177
JK1101
HEAD_PHONE
3
DETECT
4
L
5
GND
1
R
MMBT3904(NXP)
Q1102
HEAD_PHONE
E
B
C
MMBT3904(NXP)
Q1101
HEAD_PHONE
E
B
C
MMBT3904(NXP)
Q1104
HEAD_PHONE
E
B
C
MMBT3904(NXP)
Q1103
HEAD_PHONE
E
B
C
MMBT3904(NXP)
Q1106
HEAD_PHONE
E
B
C
MMBT3906(NXP) 
Q1105
HEAD_PHONE
E
B
C
100pF
50V
C1108
470K
R1102
15K
R1107
470K
R1103
PC_L_IN
P E J 0 2 7 - 0 4
JK1102
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
10K
R1111
15K
R1108
100pF
50V
C1107
10K
R1110
PC_R_IN
200pF
5.6V
DELETE
D1101
200pF
5.6V
DELETE
D1102
SPG09-DB-010
JK1104
1
RED
2
GREEN
3
BLUE
4
GND_1
5
DDC_GND
6
RED_GND
7
GREEN_GND
8
BLUE_GND
9
NC
10
SYNC_GND
11
GND_2
12
DDC_DATA
13
H_SYNC
14
V_SYNC
15
DDC_CLOCK
16
SHILED
22
R1175
+3.3V_Normal
10K
R1146
RGB_DDC_SCL
1K
R1147
2.2K
R1139
DSUB_R+
DSUB_G+
DSUB_VSYNC
DSUB_HSYNC
75
R1137
DSUB_DET
22
R1162
75
R1135
18pF
50V
C1127
2.2K
R1140
75
R1133
18pF
50V
C1128
RGB_DDC_SDA
+5V_Normal
ENKMC2838-T112
D1115
A1
C
A2
0 . 1 u F
16V
C1129
DSUB_B+
ADMC 5M 02 200L 
5.6V
DELETE
D1117
ADUC 20S 02 010L 
20V
D1113
ADUC 20S 02 010L 
20V
D1109
ADUC 20S 02 010L 
20V
RGB_ZENER
D1112
ADUC 20S 02 010L 
20V
RGB_ZENER
D1110
ADUC 20S 02 010L 
20V
RGB_ZENER
D1111
11
5 . 1 5   M s t a r   C i r c u i t   A p p l i c a t i o n
SPDIF OPTIC JACK
HEADPHONE
PC AUDIO
RGB PC
SIDE USB
2 0 1 2 . 1 1 . 1 2
2013 S7LR2
RGB/HP/USB
SPI_SCK
+3.5V_ST
+3.5V_ST
0 . 1 u F
C1401
4.7K
R1404
OPT
/SPI_CS
SPI_SDO
MX25L8006EM2I-12G
IC1401
S_FLASH_MAIN_MACRONIX
3
WP#
2
SO/SIO1
4
GND
1
CS#
5
S I / S I O 0
6
SCLK
7
HOLD#
8
VCC
33
R1405
10K
R1403
DELETE
SPI_SDI
/FLASH_WP
W25Q80BVSSIG
IC1401-*1
S_FLASH_MAIN_WINBOND
3
%WP[IO2]
2
DO[IO1]
4
GND
1
CS
5
D I [ I O 0 ]
6
CLK
7
HOLD[IO3]
8
VCC
+3.5V_ST
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.
2013 S7LR2
2 0 1 2 . 1 1 . 1 2
13
S_FLASH
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.
SC1_ID
SC1_CVBS_IN
12K
R1630
EU_OPT
75
R1605
EU_OPT
SC1_DET
SC1_G+
470K
R1607
EU_OPT
15K
EU_OPT
R1623
12K
R1631
EU_OPT
47K
EU_OPT
R1641
2K
EU_OPT
R1648
DTV/MNT_L_OUT
75
R1604
EU_OPT
+3.3V_Normal
SIDE_COMP_DET
SIDE_COMP_Pb+
2K
EU_OPT
R1650
EU_OPT
L1606
75
COMPONENT
R9910
470K
R1606
EU_OPT
MMBT3904(NXP)
EU_OPT
Q1608
SIDE_COMP_Y+
4700pF
EU_OPT
C1619
75
EU_OPT
R1609
75
R1608
EU_OPT
DTV/MNT_R_OUT
4700pF
EU_OPT
C1618
220pF
50V
OPT
C1608
10K
R1618
EU_OPT
100uF
16V
EU_OPT
C1620
MMBT3904(NXP)
EU_OPT
Q1602
E
B
C
MMBT3906(NXP) 
EU_OPT
Q1601
E
B
C
15K
EU_OPT
R1642
0 . 1 u F
50V
EU_OPT
C1625
10K
COMPONENT
R9904
0
EU_OPT
R4221
120-ohm
L1603
EU_OPT
390
EU_OPT
R1635
47uF
16V
EU_OPT
C1621
+12V
DTV/MNT_VOUT
SC1_FB
1K
R1614
EU_OPT
0 . 1 u F
16V
C1607
EU_OPT
22
EU_OPT
R1627
0
EU_OPT
R4210
75
COMPONENT
R9908
MMBT3904(NXP)
EU_OPT
Q1607
180
EU_OPT
R1639
MMBT3906(NXP) 
Q1610
E
B
C
+3.3V_Normal
0 . 1 u F
EU_OPT
C1636
330pF
50V
C1612
EU_OPT
75
COMPONENT
R9909
PSC008-01
EU_OPT
JK1602
1
AUDIO_R_OUT
2
AUDIO_R_IN
3
AUDIO_L_OUT
4
AUDIO_GND
5
B_GND
6
AUDIO_L_IN
7
B_OUT
8
ID
9
G_GND
10
D2B_IN
11
G_OUT
12
D2B_OUT
13
R_GND
14
RGB_GND
15
R_OUT
16
RGB_IO
17
SYNC_GND1
18
SYNC_GND2
19
SYNC_OUT
20
SYNC_IN
21
COM_GND
22
AV_DET
3.9K
EU_OPT
R1629
470
EU_OPT
R1640
10K
R1617
EU_OPT
330pF
50V
C1611
EU_OPT
DTV/MNT_R_OUT
SC1_L_IN
120-ohm
L1604
EU_OPT
SCART1_MUTE
1000pF
50V
EU_OPT
C1610
10K
R1652
EU_OPT
0 . 1 u F
50V
EU_OPT
C1623
1K
COMPONENT
R9912
BLM18PG121SN1D
EU_OPT
L1602
DTV/MNT_L_OUT
1000pF
50V
EU_OPT
C1609
47pF
50V
EU_OPT
C1604
SC1_SOG_IN
390
R4211
EU_OPT
SC1_B+
SC1_R_IN
75
EU_OPT
R1616
75
EU_OPT
R1628
SIDE_COMP_Pr+
SC1_R+
BLM18PG121SN1D
EU_OPT
L1601
10K
R1613
EU_OPT
+3.5V_ST
5.6V
D1611
ESD_SCART
ESD_SCART
D1612
ESD_SCART
D1602
20V
ESD_SCART
D1603
20V
ESD_SCART
D1610
20V
ESD_SCART
D1604
20V
ESD_SCART
D1605
5.6V
ESD_SCART
D1607
5.6V
ESD_SCART
D1609
5.6V
ESD_SCART
D1608
5.6V
ESD_SCART
D1601
20V
ESD_SCART
D1618
20V
ESD_SCART
D1606
ESD_COMP
D1614
ESD_COMP
D1613
ESD_COMP
D1615
ESD_COMP
D1616
ESD_COMP
D1617
ESD_COMP
D1620
5.6V
OPT
D1619
P E J 0 2 9 - 0 2
JK1600
COMPONENT
3
E_SPRING
6
T_TERMINAL
7
B_TERMINAL
5
T_SPRING
4
R_SPRING
8
G_SPRING
5.6K
EU_OPT
R1620
2.2K
EU_OPT
R1600
330pF
EU_OPT
C1603
220K
EU_OPT
R1622
2.2K
EU_OPT
R1625
33K
EU_OPT
R1621
0 . 1 u F
50V
EU_OPT
C1642
10K
EU_OPT
R1619
SCART1_Rout
330pF
EU_OPT
C1601
220K
EU_OPT
R1602
AZ4580MTR-E1 
EU_OPT
IC1601
3
IN1+
2
I N 1 -
4
VEE
1
OUT1
5
IN2+
6
I N 2 -
7
OUT2
8
VCC
DTV/MNT_L_OUT
33pF
EU_OPT
C1606
10uF
16V
EU_OPT
C1605
10K
EU_OPT
R1615
+12V
470K
DELETE
R1601
470K
DELETE
R1624
10uF
16V
EU_OPT
C1600
33pF
EU_OPT
C1602
SCART1_Lout
33K
EU_OPT
R1603
5.6K
EU_OPT
R1612
DTV/MNT_R_OUT
Gain=1+Rf/Rg
Rg
Rf
REAR COMPONENT PHONE JACK
[SCART AUDIO MUTE]
F u l l   S c a r t
2013 S7LR2
16
REAR JACK
2 0 1 2 . 1 1 . 1 2
CLOSE TO MSTAR
CLOSE TO MSTAR
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