Read LG 26LQ630H (CHASSIS:LA1EY) Service Manual 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.
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.
22uF
OPT
OPT
C1804
TU_SIF
+3.3V_TU
+12V_C_MPI
RJ12_MPI_DOUT
016:AH11
5.6V
D1403
OPT
RJ12_IR_MPI_MODEM_buffer
220
R5031
TU_BUFFER
0 . 1 u F
16V
16V
C3726
0 . 1 u F
16V
16V
C1788
IF_P_MSTAR
TU_CVBS
bLAN_POWER_MANAGE
016:N17;011:AG4
0
R2529
B-LAN
1K
R3740-*1
TU_IIC_NON_ATSC_SANYO
4.7K
R5025
TU_BUFFER
+5V_ST_bLAN
1.2K
R3741
TU_IIC_ATSC_SANYO
0
R1439
B-LAN
0 . 1 u F
16V
C5025
5.6V
D1405
OPT
470
R607
RJ12_MPI
22uF
10V
10V
C3719
220
R611
RJ12_MPI
0
R1410
B-LAN
0
RJ12_MPI
R616
RJ12_IR_MPI_MODEM_buffer
3.3K
R1472
R1472
22uF
16V
16V
C3722
220pF
C602
RJ12_MPI
S P 1 1 - N T - 4 0 1
JK10
1
10K
R618
RJ12_MPI
33
R3735
TU_I2C_NON_FILTER
22K
OPT
R1829
GND
20pF
50V
50V
C3743
TU_I2C_FILTER
GND
+12V_C
1W
200
R1473
B-LAN
1M
R605
RJ12_MPI
0 . 1 u F
16V
C5007
BEXT_IR_MODEM
011:R5
100
R5009
BEXT_MPI_OUT
011:R8
BEXT_MPI_DIN
011:N15
0
R1400
B-LAN
22uF
16V
16V
C1411
OPT
1K
R3741-*1
TU_IIC_NON_ATSC_SANYO
22K
R608
RJ12_MPI
MLB-201209-0120P-N2
L1401
B-LAN
0 . 1 u F
16V
16V
C1833
B-LAN
220
R5030
TU_BUFFER
+5V_BLAN
0
R5035
20pF
50V
50V
C3711-*1
TU_I2C_FILTER
0
R2519
B-LAN
0 . 1 u F
16V
C3727
BEXT_MPI_DIN
011:R7
BEXT_Game_Control_Latch
011:R6
SPI_CLOCK
016:AM23
0
RJ12_MPI
R615
100K
R1890
OPT
0
R5003
5.6V
D1401
OPT
SPI_DIN
016:AM22
YFDW254-06S
P1400
OPT
4
3
2
6
1
5
RJ12_MPI_DOUT_buffer
10K R610
RJ12_MPI
0 . 1 u F
16V
16V
C1830
B-LAN
0
R1401B-LAN
+5V_ST_bLAN
bLAN_POWER_MANAGE
016:N17;011:AG8
+5V_ST
+3.3V_TU
BEXT_5V
470
R602
RJ12_MPI
SPI_DOUT
016:AM22
RJ12_MPI_DIN_buffer
100pF
50V
50V
C1787
AO3407A
Q1807
B-LAN
G
D
S
0
R1413
B-LAN
MPI_DIN
0 1 6 : A I 1 9
+12V_C_MPI
1/10W
3.3K
5%
R1474
B-LAN
BEXT_IR_MODEM
011:N14
RJ12_MPI_DIN_buffer
10K
R619
RJ12_MPI
0
R1418
B-LAN
COIL
R3736-*1
TU_I2C_FILTER
33
R3736
TU_I2C_NON_FILTER
0
RJ12_MPI
R613
+5V_ST
0
R1442
B-LAN
10uF
10V
10V
C1413
OPT
1/10W
10K
5%
R1470
B-LAN
BEXT_MPI_OUT
011:N15
1.2K
R3740
TU_IIC_ATSC_SANYO
IF_N_MSTAR
TUNER_RESET
20pF
50V
50V
C3742
TU_I2C_FILTER
470K
R600
RJ12_MPI
+5V_BLAN_TU
b_com_PWCTRL
011:AB5
0
R2530
B-LAN
18pF
50V
50V
C3711
TU_I2C_NON_FILTER
0 . 1 u F
16V
16V
C5016
OPT
0
R1441
B-LAN
18pF
50V
50V
C3713
TU_I2C_NON_FILTER
1K
OPT
R5027
TU_SDA
5.6V
D1407
OPT
5.6V
D1406
OPT
3.3K
R612
RJ12_MPI
5.6V
D1400
OPT
JP1483
220pF
C601
RJ12_MPI
MPI_DOUT
016:AM18
1K
R5022
0 . 1 u F
16V
C5010
IF_AGC_MAIN
MLB-201209-0120P-N2
L1405
B-LAN
82
R5032
0
R1407
B-LAN
470
R5029
TU_BUFFER
RJ12_IR_MPI_MODEM
016:AN14
20pF
50V
50V
C3713-*1
TU_I2C_FILTER
+5V_ST
0
R1440
B-LAN
0
R5300
+5V_BLAN_TU
TU_SCL
1uF
10V
OPT
C1801
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.
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.
BEXT_5V
1K
R604
RJ12_MPI
4.7K
R603
MLB-201209-0120P-N2
L3702
bLAN_IR_IN_MODEM
016:AN12
+3.3V_Normal
220 R617
RJ12_MPI
47K
R1880
B-LAN
5.6V
D1402
OPT
0
R1415
B-LAN
0
R5034
22uF
10V
10V
C3715
+3.3V_TU
BEXT_Game_Control_Latch
011:N14
1W
200
R1471
B-LAN
220pF
C600
RJ12_MPI
0 . 1 u F
16V
C3725
+3.3V_TU
+5V_ST
COIL
R3735-*1
TU_I2C_FILTER
BEXT_5V
1uF
10V
C1802
B-LAN
RJ12_MPI_DIN
0 1 6 : A I 8
0
RJ12_MPI
R614
0 . 1 u F
16V
16V
C1412
B-LAN
30V
D1408
OPT
+3.3V_TU
623PU-6-FS-B
JK1401
1
2
3
4
5
6
7
22uF
10V
10V
C3723
b_com_PWCTRL
011:M18
RJ12_MPI_DOUT_buffer
0
R1443
B-LAN
0
R1406 B-LAN
4.7K
R601
RJ12_MPI
+5V_BLAN
0
R1414
B-LAN
AO3407A
Q1804
B-LAN
G
D
S
0 . 1 u F
16V
C3724
100pF
50V
50V
C5006
+1.2V/+1.8V_TU
MLB-201209-0120P-N2
L3703
100K
R5011
1/10W
1
R3766
0 . 1 u F
16V
C3717
150
R3703
OPT
+1.2V/+1.8V_TU
10uF
10V
10V
C3741
+3.3V_TU
0 . 1 u F
16V
C3740
TDSS-H101F
TU3700
SI2176_ATSC_1INPUT_H
5
+ B 1 [ 3 . 3 V ]
11
DIF[N]
2
RESET
10
D I F [ P ]
4
SDA
1
NC
9
IF_AGC
8
CVBS
3
SCL
7
+ B 2 [ 1 . 8 V ]
6
S I F
12
SHIELD
GND
22K
R609
RJ12_MPI
47K
R1893
B-LAN
47K
R1879
B-LAN
47K
R1892
B-LAN
47K
OPT
R1830
10K
R1882
B-LAN
10K
R1877
B-LAN
2.2K
OPT
OPT
R1802
2.2K
OPT
OPT
R1801
10K
R1891
OPT
AZ1117BH-1.8TRE1
IC3703
1
ADJ/GND
2
OUT
3
IN
0
TU_NON_BUFFER
R5002
+3.3V_TU
0
TU_NON_BUFFER
R5000
0
TU_BUFFER
R5001
1uF
25V
C1805
B-LAN
220pF
50V
50V
C1470
B-LAN
P4
P3
P5
10K
R1480
B-LAN
+5V_BLAN_TU
P5
2SC3875S(ALY)
Q1480
B-LAN
E
B
C
DET_MPI
0 . 1 u F
C1480
B-LAN
+5V_BLAN_TU
MC14053BDR2G
IC1401
B-LAN
3
Z1
2
Y0
4
Z
1
Y1
6
INH
5
Z0
7
VEE
8
VSS
9
C
10
B
11
A
12
X0
13
X1
14
X
15
Y
16
VDD
10K
OPT
R1481
P3
0
B-LAN
R1482
GND
0
B-LAN
R1483
+5V_BLAN_TU
MPI_RX
KJA-PH-0-0177
EAG61030001
B-LAN
JK6001
3
DETECT
4
L
5
GND
1
R
GND
47K
R1484
B-LAN
68K
R1485
B-LAN
6.2K
R9918
B-LAN
DET_MPI
P2
MPI_RX
016:AM22
P2
MPI_TX
016:AM22
MPI_TX
P4
016:AM22
2SA1504S
Q602
RJ12_MPI
E
B
C
Q600
RJ12_MPI
E
B
C
2SC3875S(ALY)
Q603
RJ12_MPI
E
B
C
Q601
RJ12_MPI
E
B
C
2SC3875S(ALY)
Q1470
B-LAN
E
B
C
2SC3052
Q1803
B-LAN
E
B
C
2SC3052
Q1808
B-LAN
E
B
C
ISA1530AC1
Q5004
E
B
C
ISA1530AC1
Q5005
TU_BUFFER
E
B
C
2N3906S-RTK
Q1471
Q1471
B-LAN
E
B
C
TMMB-H002F
TU1003
NEW_BLAN
1
S I F
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
J 1 _ P 2
17
J 1 _ P 3
18
J 1 _ P 4
19
J 1 _ P 5
20
PTS
21
JP1_P3
22
JP1_P4
23
JP1_P5
24
JP1_P6
25
JP1_P7
26
JP1_P10
27
J 2 _ P 1
28
J 2 _ P 2
29
J 2 _ P 3
30
J 2 _ P 4
31
J 2 _ P 6
32
SHIELD
11
S i z e c h a n g e
b_LAN Game control JACK
60mA
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
NC
BLAN CHECK
C l o s e t o t h e t u n e r
S i z e c h a n g e
s h o u l d b e g u a r d e d b y g r o u n d
BLAN CHECK
MPI_DOUT
IR_OUT
MPI_5V or 12V
Tuner & b-LAN power
B-LAN & tuner
GND
12V_JIG
POWER LINE
M P I b u f f e r
close to TUNER
close to TUNER
5V
b_LAN MPI pin3
BLAN CHECK
B-LAN POWER
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 f r o m b - L A N
MPI_DIN
T u n e r R F j a c k
p o w e r c o n t r o l
200mA
l o c a t i o n m o v e m e n t , 0 9 2 9
BLAN CHECK
B - l a n & T u n e r
Add,0929
11
5VST_JIG
5VST_JIG
a d d , 0 9 2 9
C a n t u n e r r e a d y
S 6 5 0 0 ( S a t u r n 7 L R )
LA1EY
2 0 1 1 . 0 8 . 1 6
TxD--> R
RxD -->L
b_LAN MPI bypass
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