LG 42CQ610H (CHASSIS:LA1EZ) 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.
2SC3052
Q501
E
B
C
1N4148W
100V
OPT
D503
AMP_SCL
1uF
25V
C528
1000pF
50V
C505
AMP_MUTE
0.1uF
50V
C540
0.1uF
50V
C521
0.1uF
16V
C513
10uF
10V
OPT
C506
AMP_RESET
12
R511
+24V_AMP
SPK_R-
10uF
10V
C515
100pF
50V
C503
1uF
25V
C534
SPK_L-
10K
R521
390pF
50V
C530
0.01uF
50V
OPT
C525
0.1uF
50V
C519
10K
R520
10uF
35V
C523
1000pF
50V
C504
10K
R502
33pF
50V
C507
SPK_R+
WAFER-ANGLE
P501
1
2
3
4
SPK_L-
MLB-201209-0120P-N2
L501
0.1uF
50V
C537
12
R508
12
R509
SPK_R+
+24V_AMP
0.1uF
16V
C512
0.1uF
50V
50V
C520
+3.3V_Normal
1N4148W
100V
OPT
D502
SPK_R-
10.0uH
L505
2
2
0
0
0
p
F
50
V
C
51
7
10uF
10V
OPT
C510
0.1uF
50V
C538
0.1uF
50V
C539
100
R503
10K
R501
+24V_AMP
10uF
10V
OPT
C511
12
R513
AMP_SDA
10.0uH
L503
100
R506
10uF
35V
35V
C524
AUD_SCK
AUD_MASTER_CLK
SPK_L+
THERMAL
NTP-7400L
IC501
NTP7400
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
1
3
SC
L
1
4
/F
A
U
L
T
1
5
M
O
N
IT
O
R
0
1
6
M
O
N
IT
O
R
1
1
7
M
O
N
IT
O
R
2
1
8
B
ST
2B
1
9
PG
N
D
2B
2
0
O
U
T
2B
_1
2
1
O
U
T
2B
_2
2
2
PV
D
D
2_
1
2
3
PV
D
D
2_
2
2
4
PV
D
D
2_
3
25
OUT2A_1
26
OUT2A_2
27
PGND2A
28
BST2A
29
VDR2
30
GND_2
31
VCC_5
32
VDR1
33
BST1B
34
PGND1B
35
OUT1B_1
36
OUT1B_2
3
7
PV
D
D
1_
1
3
8
PV
D
D
1_
2
3
9
PV
D
D
1_
3
4
0
1_
A1
T
U
O
4
1
O
U
T
1A
_2
4
2
PG
N
D
1A
4
3
B
ST
1A
4
4
/R
E
S
E
T
4
5
A
D
4
6
G
N
D
_I
O
4
7
C
L
K
_I
4
8
V
D
D
_I
O
49
[E
P
]
3.3K
R505
33pF
50V
C509
0.1uF
50V
C502
390pF
50V
C532
0.1uF
50V
C501
BLM18PG121SN1D
L502
1uF
25V
C529
3 . 3
OPT
R507
22000pF
50V
C527
SPK_L+
AUD_LRCK
100
R504
12
R515
12
R512
10.0uH
L506
0.1uF
16V
C508
NTP7400
1000pF
50V
C516
22000pF
50V
C518
12
R514
0.1uF
50V
50V
C522
1N4148W
100V
OPT
D504
390pF
50V
C531
+3.5V_ST
AUD_LRCH
0.47uF
50V
C535
12
R510
+24V
0.47uF
50V
C536
390pF
50V
C533
0.1uF
16V
C514
1N4148W
100V
OPT
D501
10.0uH
L504
22000pF
50V
C526
POWER_DET
47K
OPT
R523
4.7K
R516
4.7K
R519
4.7K
R517
4.7K
R518
THERMAL
NTP-7500L
IC501-*1
NTP7500
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
1
3
SC
L
1
4
/F
A
U
L
T
1
5
M
O
N
IT
O
R
0
1
6
M
O
N
IT
O
R
1
1
7
M
O
N
IT
O
R
2
1
8
B
ST
2B
1
9
PG
N
D
2B
2
0
O
U
T
2B
_1
2
1
O
U
T
2B
_2
2
2
PV
D
D
2_
1
2
3
PV
D
D
2_
2
2
4
PV
D
D
2_
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
3
7
PV
D
D
1_
1
3
8
PV
D
D
1_
2
3
9
PV
D
D
1_
3
4
0
O
U
T
1A
_1
4
1
O
U
T
1A
_2
4
2
PG
N
D
1A
4
3
B
ST
1A
4
4
/R
E
S
E
T
4
5
A
D
4
6
G
N
D
_I
O
4
7
C
L
K
_I
4
8
V
D
D
_I
O
49
[E
P
]
4.7uF
16V
NTP7500
C506-*1
38
AMP(NTP7400L)
SPEAKER_L
SPEAKER_R
NTP7400L
24V_power
42LD6DDH-UA
2 0 1 1 . 1 2 . 0 1
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.
10K
R1252
AV/COMPONENT
12K
R1255
A
V
/C
O
M
PO
N
EN
T
1000pF
50V
C1273
AV/COMPONENT
5.6V
D1212
ADMC5M03200L
OPT
75
R1242
A
V
/C
O
M
PO
N
EN
T
470K
R1208
A
V
/C
O
M
PO
N
EN
T
COMP2_Y+
002:D8
5.6V
D1211
ADMC5M03200L
OPT
COMP2_Pb+
002:D7
470K
R1206
A
V
/C
O
M
PO
N
EN
T
100pF
50V
C1260
AV/COMPONENT
BG2012B080TF
L1217
AV/COMPONENT
D1243
OPT
75
1%
R1215
A
V
/C
O
M
PO
N
EN
T
100pF
50V
C1261
AV/COMPONENT
COMP2_Pr+
002:D8
10K
R1251
AV/COMPONENT
30V
D1210
ADUC30S03010L
OPT
75
R1241
A
V
/C
O
M
PO
N
EN
T
10K
R1270
AV/COMPONENT
BG2012B080TF
L1218
AV/COMPONENT
30V
D1209
ADUC30S03010L
OPT
12K
R1207
A
V
/C
O
M
PO
N
EN
T
12K
R1210
A
V
/C
O
M
PO
N
EN
T
470K
R1244
A
V
/C
O
M
PO
N
EN
T
470K
R1245
A
V
/C
O
M
PO
N
EN
T
12K
R1256
A
V
/C
O
M
PO
N
EN
T
30V
D1208
ADUC30S03010L
OPT
COMP2_R_IN
002:T12
47pF
50V
C1262
AV/COMPONENT
75
R1243
A
V
/C
O
M
PO
N
EN
T
D1245
OPT
COMP2_L_IN
002:T12
PPJ238-01
JK1207
AV/COMPONENT
5D
[GN2]O-SPRING
6D
[GN2]E-LUG
4D
[GN2]CONTACT
7E
[BL2]E-LUG-S
5E
[BL2]O-SPRING
7F
[RD2]E-LUG-S
5F
[RD2]O-SPRING_1
5G
[WH2]O-SPRING
4H
[RD2]CONTACT
5H [RD2]O-SPRING_2
6H [RD2]E-LUG
6A [YL1]E-LUG
5A [YL1]O-SPRING
4A [YL1]CONTACT
5B [WH1]O-SPRING
4C [RD1]CONTACT
5C [RD1]O-SPRING
6C [RD1]E-LUG
10K
R1211
AV/COMPONENT
1000pF
50V
C1272
AV/COMPONENT
D1242
OPT
470K
R1247
5.6V
D1214
ADMC5M03200L
OPT
BG2012B080TF
L1206
1K
R1254
10K
R1259
BG2012B080TF
L1207
12K
R1263
12K
R1264
100pF
50V
C1265
100pF
C1227
30V
D1215
ADUC30S03010L
OPT
BG2012B080TF
L1208
100pF
50V
C1225
10K
R1258
5.6V
D1221
ADMC5M03200L
5.6V
D1213
ADMC5M03200L
OPT
75
R1271
470K
R1246
10K
R1248
PPJ235-01
JK1202
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A [YL]CONTACT
4B [WH]O-SPRING
3C [RD]CONTACT
4C
[RD]O-SPRING
5C
[RD]E-LUG
100pF
C1271
SIDEAV_DET
+3.3V_Normal
AV_CVBS_IN
002:D6
AV_L_IN
002:T13
AV_R_IN
002:T13
SIDEAV_CVBS_IN
002:D6
SIDEAV_R_IN
002:T12
SIDEAV_L_IN
002:T12
31
AV jack
REAR AV / COMPONENT
SIDE_AV
42LD6DDH-UA
2 0 1 1 . 1 2 . 0 1
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