Read LG 42CQ610H (CHASSIS:LA1EZ) Service Manual online
2.2K
OPT
R1802
0
R1401B-LAN
10K
R1891
OPT
TDSS-H101F
TU3700
H
_
T
U
P
NI
1
_
C
S
T
A
_
6
7
1
2I
S
5
+B1[3.3V]
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC
9
IF_AGC
8
CVBS
3
SCL
7
+B2[1.8V]
6
SIF
12
SHIELD
0
R5034
RJ12_IR_MPI_MODEM
016:AN14
20pF
50V
C3711-*1
TU_I2C_FILTER
+12V_C_MPI
bLAN_IR_IN_MODEM
016:AN12
0
R1415
BLAN
RJ12_IR_MPI_MODEM_buffer
22
K
R6
09
R
J1
2_
M
P
I
10uF
10V
C3741
RJ12_MPI_DIN
016:AI8
0.1uF
16V
C3726
TU_SDA
GND
bLAN_POWER_MANAGE
016:N17;011:AG4
0
R1406 B-LAN
RJ12_MPI_DOUT_buffer
1.2K
R3741
TU_IIC_ATSC_SANYO
0
RJ12_MPI
R613
3.3K
R1472
COIL
R3735-*1
TU_I2C_FILTER
5
.6
V
D
14
05
O
PT
MMBT3906(NXP)
TU_BUFFER
Q5000
E
B
C
10K R610
RJ12_MPI
SPI_DIN
016:AM22
18pF
50V
C3711
TU_I2C_NON_FILTER
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.
0
R5300
+5V_BLAN
IF_AGC_MAIN
22uF
OPT
C1804
1K
R3740-*1
TU_IIC_NON_ATSC_SANYO
SPI_CLOCK
016:AM23
10K
R1877
B-LAN
BEXT_IR_MODEM
011:R5
1K
OPT
R5002
AZ1117BH-1.8TRE1
IC3703
1
ADJ/GND
2 OUT
3
IN
4.7K
R601
RJ12_MPI
+3.3V_TU
0
TU_BUFFER
R5001
+12V_C
1/10W
3.3K
5%
R1474
B-LAN
0
R1440
B-LAN
Q601
RJ12_MPI
E
B
C
0
R1416
BLAN
1K
R3741-*1
TU_IIC_NON_ATSC_SANYO
BEXT_Game_Control_Latch
011:N14
0.1uF
16V
C5010
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.
20pF
50V
C3743
TU_I2C_FILTER
100pF
50V
C1787
b_com_PWCTRL
011:M18
2SC3052
Q1808
B-LAN
E
B
C
30
V
D
14
08
O
PT
100K
R1890
OPT
1/10W
1
R3766
22
K
R6
08
R
J1
2_
M
P
I
BEXT_5V
22
K
O
PT
R
18
29
JP1483
0
R1413
BLAN
10
K
R6
19
R
J1
2_
M
P
I
0
TU_NON_BUFFER
R5000
22uF
10V
C3715
+5V_ST
1uF
16V
C1805
B
-L
A
N
0.1uF
16V
C1830
B-LAN
100
R5009
0
RJ12_MPI
R614
MMBT3906(NXP)
Q5001
E
B
C
MPI_DIN
016:AI19
IF_P_MSTAR
47K
R1880
B
-L
A
N
1W
2
0
0
R
14
73
B
-L
A
N
220
R611
RJ12_MPI
0
R1418
BLAN
+3.3V_TU
BEXT_MPI_OUT
011:N15
0
R2529
B-LAN
BEXT_5V
0
R1441
B-LAN
3.3K
R612
RJ12_MPI
47
K
O
PT
R
18
30
RJ12_IR_MPI_MODEM_buffer
+1.2V/+1.8V_TU
2SC3052
Q1803
B-LAN
E
B
C
MJ-623PT-6-S-SD
JK1401
1
2
3
4
5
6
7
TU_SIF
0.1uF 16V
C5025
0
R1410
B-LAN
RJ12_MPI_DIN_buffer
5
.6
V
D
14
04
O
PT
+5V_ST_bLAN
33 R3736
TU_I2C_NON_FILTER
RJ12_MPI_DOUT_buffer
33
R3735
TU_I2C_NON_FILTER
5
.6
V
D
14
06
O
PT
+5V_BLAN
GND
47K
R1879
B-LAN
0
R1439
B-LAN
1K
R5022
5
.6
V
D
14
01
O
PT
470K
R600
RJ12_MPI
220pF
50V
C1470
B-LAN
+5V_ST_bLAN
BEXT_IR_MODEM
011:N14
+3.3V_Normal
GND
YFDW254-06S
P1400
OPT
4
3
2
6
1
5
0.1uF
16V
C3724
220pF
C601
RJ12_MPI
470
R607
RJ12_MPI
0.1uF
16V
C3727
+12V_C_MPI
0
RJ12_MPI
R616
0.1uF
16V
C3717
bLAN_POWER_MANAGE
016:N17;011:AF8
0
R1400B-LAN
+3.3V_TU
100pF
50V
C5006
18pF
50V
C3713
TU_I2C_NON_FILTER
0
R1414
BLAN
1K
R6
04
R
J1
2_
M
P
I
47K
R1893
B
B
-L
A
N
TU_CVBS
1
M
R
6
0
5
R
J1
2_
M
P
I
0.1uF
16V
C5016
OPT
220
TU_BUFFER
R5006
BEXT_MPI_DIN
011:N15
0.1uF
16V
C1788
AO3407A
Q1804
B-LAN
G
D
S
10
K
R
18
82
B
-L
A
N
2SC3875S(ALY)
Q603
RJ12_MPI
E
B
C
1.2K
R3740
TU_IIC_ATSC_SANYO
b_com_PWCTRL
011:AB5
RJ12_MPI_DIN_buffer
+5V_ST
0
R1407
B-LAN
82
R5010
+3.3V_TU
150
R3703
OPT
BEXT_MPI_DIN
011:R7
BEXT_Game_Control_Latch
011:R6
BEXT_5V
5
.6
V
D
14
00
O
PT
0
TU_NON_BUFFER
R5005
47K
R1892
B-LAN
2SA1504S
Q602
RJ12_MPI
E
B
C
2N3906S-RTK
Q1471
B-LAN
E
B
C
MLB-201209-0120P-N2
L1405
B-LAN
PEJ027-04
JK6001
BLAN
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
+3.3V_TU
22uF
10V
C3719
22uF
10V
C3723
0
R5003
10
K
R6
18
R
J1
2_
M
P
I
220pF
C602
RJ12_MPI
20pF
50V
C3713-*1
TU_I2C_FILTER
2SC3875S(ALY)
Q1470
B-LAN
E
B
C
MLB-201209-0120P-N2
L3703
AO3407A
Q1807
B-LAN
G
D
S
COIL
R3736-*1
TU_I2C_FILTER
MPI_DOUT
016:AM18
220
TU_BUFFER
R5004
470
TU_BUFFER
R5008
TUNER_RESET
22uF
16V
C3722
0
R1442B-LAN
4.
7K
R6
03
GND
1uF
10V
C1802
B
-L
A
N
0
R2530
B-LAN
1/
10
W
10
K
5%
R
14
70
B
-L
A
N
TU_SCL
BEXT_MPI_OUT
011:R8
5
.6
V
D
14
03
O
PT
0.1uF
16V
C5007
+5V_ST
SPI_DOUT
016:AM22
0
R2519
B-LAN
MLB-201209-0120P-N2
L3702
0.1uF
16V
C1833
B-LAN
0.1uF
16V
C3725
+5V_ST
1uF
10V
OPT
C1801
IF_N_MSTAR
5
.6
V
D
14
07
O
PT
+3.3V_TU
220pF
C600
RJ12_MPI
MLB-201209-0120P-N2
L1401
B-LAN
RJ12_MPI_DOUT
016:AH11
0
RJ12_MPI
R615
0
R1417
BLAN
4.7K
TU_BUFFER
R5007
0
R1443
B-LAN
+1.2V/+1.8V_TU
+3.3V_TU
100K
R5011
5
.6
V
D
14
02
O
PT
470
R602
RJ12_MPI
0.1uF
16V
C3740
1W
2
0
0
R
14
71
B
-L
A
N
0
R5035
Q600
RJ12_MPI
E
B
C
220 R617
RJ12_MPI
2.2K
OPT
R1801
20pF
50V
C3742
TU_I2C_FILTER
TMMB-H002F
TU1003
NEW_BLAN
1
SIF
2
+3.3V
3
SCL
4
SDA
5
IF_AGC
6
GND_1
7
CVBS
8
RESET
9
+1.8V
10
DIF_N
11
DIF_P
12
GND_2
13
+5V
14
JP2_P1
15
JP2_P4
16
J1_P2
17
J1_P3
18
J1_P4
19
J1_P5
20
PTS
21
JP1_P3
22
JP1_P4
23
JP1_P5
24
JP1_P6
25
JP1_P7
26
JP1_P10
27
J2_P1
28
J2_P2
29
J2_P3
30
J2_P4
31
J2_P6
32
SHIELD
S i z e c h a n g e
b_LAN Game control JACK
11
B-LAN & tuner
MPI_DOUT
5VST_JIG
M P I b u f f e r
1 . s h o u l d b e g u a r d e d b y g r o u n d
2 . N o v i a o n b o t h o f t h e m
3 . S i g n a l W i d t h > = 1 2 m i l s
S i g n a l t o S i g n a l W i d t h = 1 2 m i l s
G r o u n d W i d t h > = 2 4 m i l s
b_LAN MPI pin3
IR_OUT
p o w e r c o n t r o l
MPI_DIN
C a n t u n e r r e a d y
B - l a n & T u n e r
add,0929
POWER LINE
11
M P I _ 5 V o r 1 2 V ( P I N 3 ) S e l e c t C o n t r o l fr o m b - L A N
close to TUNER
Add,0929
close to TUNER
MPI_5V or 12V
BLAN CHECK
BLAN CHECK
BLAN CHECK
s h o u l d b e g u a r d e d b y g r o u n d
B-LAN POWER
NC
BLAN CHECK
C l o s e t o t h e t u n e r
Tuner & b-LAN power
60mA
C l o s e t o t h e t u n e r
5V
5VST_JIG
12V_JIG
GND
42LD6DDH-UA
2 0 1 1 . 1 2 . 0 1
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