LG 22LV2500-UA (CHASSIS:LA01T) 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.
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.
JP2411
10K
R2416
OPT
100
R2411
EYEQ/TOUCH_KEY
0 . 1 u F
16V
C2410
OPT
JP2410
12507WR-15L
P2402
NEW_SUB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
BLM18PG121SN1D
L2402
2SC3052
Q2406
OPT
E
B
C
47K
R2431
OPT
100pF
50V
C2407
18pF
50V
50V
OPT
C2408
NEC_EEPROM_SCL
AMOTECH
5.6V
D2401
10K
1%
R2405
JP2408
+3.5V_ST
AMOTECH
5.6V
D2402
+3.5V_ST
100
R2401
BLM18PG121SN1D
L2403
0 . 1 u F
C2401
10K
1%
R2404
0 . 1 u F
16V
16V
C7601
19-22_LAMP
5.6V
D7601
19-22_LAMP
LED_B/LG_LOGO
CDS3C05HDMI1
5.6V
5.6V
D902
NEW_SUB
0
R2427
1.5K
R2413
BLM18PG121SN1D
L2401
18pF
50V
50V
OPT
C907
100
R2402
BLM18PG121SN1D
L7600
19-22_LAMP
NEC_EEPROM_SDA
BLM18PG121SN1D
L2404
12507WR-12L
P2401
OLD_SUB
1
2
3
4
5
6
7
8
9
10
11
12
13
47K
R2425
OPT
LED_R/BUZZ
0 . 1 u F
16V
C2403
S/T_SCL
1000pF
50V
C2404
S/T_SDA
KEY1
+3.3V_Normal
1000pF
50V
C2406
12507WR-03L
P7600
19-22_LAMP
1
2
3
4
0 . 1 u F
16V
C2405
CDS3C05HDMI1
5.6V
5.6V
D903
NEW_SUB
KEY2
18pF
50V
50V
OPT
C2409
JP2407
+3.5V_ST
10K
R2430
OPT
100
R2412
EYEQ/TOUCH_KEY
2SC3052
Q2405
OPT
E
B
C
0 . 1 u F
C2402
5.6V
D7600
19-22_LAMP
18pF
50V
50V
OPT
C906
47K
R2429
OPT
1.5K
R2414
IR
+3.5V_ST
0 . 1 u F
16V
16V
C7600
19-22_LAMP
JP2409
+3.5V_ST
22
R2428
BLM18PG121SN1D
L7601
19-22_LAMP
5.6V
D2403
EYEQ/TOUCH_KEY
5.6V
D2405
5.6V
D2404
EYEQ/TOUCH_KEY
47K
R2426
IR & LED
CONTROL
IR/CONT_SMALL
20101023
23
GP2R
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.
RXA0-
120-ohm
WAFER_FHD
L702
10uF
16V
16V
OPT
C700
RXA3-
RXA3+
RXA4-
SMALL_NC4
RXBCK+
RXA2+
RXB2-
RXB1+
RXB1-
10K
BIT_SEL_LOW
R709
PANEL_VCC
SMALL_OPC_OUT
RXACK+
RXA1+
RXBCK-
RXA1+
RXA1-
OPC_OUT
SMALL_NC3
RXACK-
RXA1+
FF10001-30
HD_60Hz_SMALL
P7902
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
10K
OPT
R7920
10uF
16V
16V
C7908
OPT
RXA0+
SMALL_NC4
RXA0+
RXA2-
3.3K
OPT
R7919
RXACK+
RXB0+
+3.3V_Normal
RXA0-
PANEL_VCC
RXA4+
RXA3+
SMALL_NC2
PWM_DIM
120-ohm
HD_60Hz_NORMAL
L7901
FF10001-30
HD_60Hz_NORMAL
P7901
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1000pF
50V
50V
C7907
OPT
1000pF
50V
50V
C709
OPT
RXA2-
RXA0-
RXACK+
120-ohm
HD_60Hz_SMALL
L7902
RXA2-
SMALL_NC2
+3.3V_Normal
TP722
RXB0-
SMALL_NC1
0
HD_60Hz_NORMAL
R7914
PANEL_VCC
0
OPT
R7915
0 . 1 u F
16V
16V
C7903
HD_60Hz_NORMAL
RXA3+
10uF
16V
16V
C7905
OPT
RXA2+
RXB3-
SMALL_OPC_EN
RXA3-
RXA0+
RXA2+
0 . 1 u F
16V
16V
C710
WAFER_FHD
3.3K
OPT
R705
RXA3-
SMALL_OPC_OUT
RXB4-
SCAN_BLK1/OPC_OUT
1000pF
50V
50V
C7904
OPT
SCAN_BLK2
SMALL_NC1
RXB4+
SMALL_NC3
RXA1-
RXACK-
PWM_DIM
RXACK-
RXB3+
RXB2+
SMALL_OPC_EN
RXA1-
0 . 1 u F
16V
16V
C7906
HD_60Hz_SMALL
10K
OPT
R710
TP721
F I - R E 5 1 S - H F - J - R 1 5 0 0
P703
WAFER_FHD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
2D/3D_CTL
TP729
TP744
TP743
RXC1+
RXD2+
RXC4-
TP735
TP739
RXC4+
RXC2-
RXC1-
TP742
TP731
RXCCK-
TP741
RXD0+
RXD0-
TP738
RXD2-
TP748
RXD3-
TP740
TP733
RXC0+
RXCCK+
RXD4+
RXDCK+
TP736
TP727
RXC3-
TP745
RXD1+
RXD4-
TP732
TP728
RXC3+
TP734
RXD3+
RXC0-
TP726
TP747
TP730
RXD1-
TP746
TP749
RXDCK-
TP737
RXC2+
LVDS_SEL
BIT_SEL
[ 3 0 P i n L V D S C o n n e c t o r ]
( F o r H D 6 0 H z _ S m a l l )
[ 5 1 P i n L V D S C o n n e c t o r ]
( F o r F H D 6 0 / 1 2 0 H z )
[ 3 0 P i n L V D S C o n n e c t o r ]
(For HD 60Hz_Normal)
LVDS_SMALL
20101115
24
GP2R
41PIN WAFER DELETE, HONGSU, 201011115
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.
22pF
50V
FULL_NIM
50V
FULL_NIM
C3714
4.7K
R3753
RF_SWITCH_CTL
0
FULL_NIM
R3721
10K
FULL_NIM_BCD
R3748-*1
+5V_Normal
10K
FULL_NIM_BCD
R3771
0
R3761
HALF_NIM
220
R3752
0
FULL_NIM
R3731
+1.2V/+1.8V_TU
100pF
50V
50V
C3707
0
R3734
BOOSTER_OPT
0
FULL_NIM_CHINA
R3723
2.2K
R3737
BOOSTER_OPT
10K
FULL_NIM_SEMTEK
R3770
0
FULL_NIM
R3729
470
R3755
IF_AGC_SEL
DEMOD_SCL
22uF
10V
10V
C3723
22uF
10V
10V
C3719
TDTJ-S001D
DVB_1INPUT_H_LGIT
TU3702
14
3.3V
13
1.2V
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1
9
S I F
8
NC[IF_TP]
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
SHIELD
19
TU_SCL
0 . 1 u F
16V
C3725
22pF
50V
50V
FULL_NIM
C3712
0
FULL_NIM
R3727
4.7K
FULL_NIM
R3744
FE_TS_SYNC
0
R3704
HALF_NIM
18pF
50V
50V
C3713
TU_I2C_NON_FILTER
0
OPT
R3762
0
FULL_NIM
R3728
TUNER_RESET
+3.3V_TU
THERMAL
AP2132MP-2.5TRG1
IC3701
FULL_NIM_BCD
3
VIN
2
EN
4
VCTRL
1
PG
5
NC
6
VOUT
7
ADJ
8
GND
9
[ E P ]
0 . 1 u F
16V
C3727
FE_TS_DATA[0-7]
10K
OPT
R3754
0
R3749
TU_SIF
0 . 1 u F
16V
C3724
+5V_TU
150
R3703
OPT
0 . 1 u F
16V
16V
OPT
C3728
+5V_TU
+3.3V_TU
+3.3V_TU
0 . 1 u F
16V
C3710
0
R3760
HALF_NIM
10K
R3743
BOOSTER_OPT
+1.2V/+1.8V_TU
1/10W
0
FULL_NIM
R3764
0 . 1 u F
16V
16V
C3701
33
R3736
TU_I2C_NON_FILTER
ISA1530AC1
Q3703
E
B
C
+5V_TU
10uF
10V
10V
C3730
FULL_NIM
2SC3052
OPT
Q3704
E
B
C
22uF
16V
16V
C3722
1005
9.1K
FULL_NIM
R3747
DEMOD_RESET
1.2K
R3741
TU_IIC_ATSC_SANYO
+3.3V_TU
0
FULL_NIM
R3726
10
R3767
HALF_NIM
100pF
50V
50V
C3737
+5V_General
0 . 1 u F
16V
C3717
DEMOD_SDA
100
FULL_NIM
R3702
TU_CVBS
0 . 1 u F
16V
C3704
1/10W
1
HALF_NIM
R3766
0 . 1 u F
16V
16V
C3726
+3.3V_TU
IF_N_MSTAR
+3.3V_Normal
100pF
50V
50V
C3703
18pF
50V
50V
C3711
TU_I2C_NON_FILTER
100uF
16V
16V
C3705
FULL_NIM
33
R3735
TU_I2C_NON_FILTER
FE_TS_CLK
100K
R3733
FE_TS_VAL_ERR
FULL_NIM_BCD
L3704
0
FULL_NIM_CHINA
R3725
+5V_TU
100
R3732
0
FULL_NIM
R3730
220
R3751
0 . 1 u F
16V
16V
C3738
2SC3052
Q3702
BOOSTER_OPT
E
B
C
IF_AGC_MAIN
0
OPT
R3707
1.2K
R3768
HALF_NIM
ISA1530AC1
Q3705
E
B
C
10K
FULL_NIM_BCD
R3769
0 . 1 u F
16V
C3708
0
FULL_NIM
R3724
CONTROL_ATTEN
+3.3V_TU
4.7K
FULL_NIM
R3742
BLM18PG121SN1D
L3701BOOSTER_OPT
TU_SDA
100
FULL_NIM
R3701
+5V_TU
10uF
10V
10V
OPT
C3731
82
R3758
10K
R3745
BOOSTER_OPT
0
FULL_NIM
R3722
ISA1530AC1
Q3701
BOOSTER_OPT
E
B
C
5.1K
FULL_NIM_SEMTEK
R3748
+1.2V/+1.8V_TU
IF_P_MSTAR
0 . 1 u F
16V
C3729
FULL_NIM
1.2K
R3740
TU_IIC_ATSC_SANYO
0
RF_SW_OPT
R3705
0 . 0 1 u F
25V
25V
C3709
BOOSTER_OPT
0 . 1 u F
16V
C3702
SC4215ISTRT
FULL_NIM_SEMTEK
IC3701-*1
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
LNA2_CTL
1K
OPT
R3750
0 . 1 u F
16V
16V
C3706
AZ1117BH-ADJTRE1
IC3703
HALF_NIM_1.2V_BCD
2
OUTPUT
3
INPUT
1
ADJ/GND
0
FULL_NIM_BR R3706
UDA55AL
TU3702-*3
GP3_ATSC_1INPUT_H_SANYO
14
+3.3V
13
+1.2V
5
AS
12
GND
11
VIDEO
2
NC_2
10
NC_3
4
NC[RF_AGC]
1
NC_1
17
DIF_1
9
S I F
8
NC(IF_TP)
3
+B[+5V]
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
SHIELD
19
TDFR-B036F
TU3701-*2
FULL_NIM_BR
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[5V]
4
NC_1[RF_AGC]
5
NC_2
6
SCLT
7
SDAT
8
NC_3
9
S I F
10
NC_4
11
VIDEO
12
GND
13
+ B 2 [ 1 . 2 V ]
14
+ B 3 [ 3 . 3 V ]
15
RESET
16
NC_5
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
TDFR-C036D
CN_2INPUT_H_LG3911
TU3701
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[+5V]
4
NC[RF_AGC]
5
NC_1
6
SCLT
7
SDAT
8
NC_2
9
S I F
10
NC_3
11
VIDEO
12
GND
13
+ B 2 [ 1 . 2 V ]
14
+ B 3 [ 3 . 3 V ]
15
RESET
16
NC_4
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
TDFR-C236D
CN_2INPUT_H_ALTO
TU3701-*4
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[+5V]
4
NC[RF_AGC]
5
NC_1
6
SCLT
7
SDAT
8
NC_2
9
S I F
10
NC_3
11
VIDEO
12
GND
13
+ B 2 [ 1 . 2 V ]
14
+ B 3 [ 3 . 3 V ]
15
RESET
16
NC_4
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
22uF
10V
10V
C3715
10uF
10V
10V
C3741
HALF_NIM
0 . 1 u F
16V
C3740
HALF_NIM
MLB-201209-0120P-N2
L3703
MLB-201209-0120P-N2
L3702
10uF
6.3V
6.3V
C3739
CN
AP1117EG-13
HALF_NIM_1.2V_DIODES
I C 3 7 0 3 - * 1
ADJ/GND
OUT
IN
1K
R3741-*1
TU_IIC_NON_ATSC_SANYO
1K
TU_IIC_NON_ATSC_SANYO
R3740-*1
20pF
50V
50V
C3742
TU_I2C_FILTER
20pF
50V
50V
C3743
TU_I2C_FILTER
TDVJ-H101F
TU3702-*1
GP3_ATSC_1INPUT_H_LGIT
14
3.3V
13
1.2V
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1
9
S I F
8
NC(IF_TP)
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
SHIELD
19
TDTJ-S101D
TU3702-*4
GP2R_AU_1INPUT_H_LGIT
14
+ B 3 [ 3 . 3 V ]
13
+ B 2 [ 1 . 2 V ]
5
MOPLL_AS
12
GND
11
VIDEO
2
NC_1
10
NC_3
4
RF_AGC
1
ANT_PWR
17
DIF_1[N]
9
S I F
8
NC_2
3
+B1[5V]
16
IF_AGC
7
SDA
6
SCL
15
RESET
18
D I F _ 2 [ P ]
SHIELD
19
MLG1005SR27JT
R3735-*1
TU_I2C_FILTER
MLG1005SR27JT
R3736-*1
TU_I2C_FILTER
20pF
50V
50V
C3711-*1
TU_I2C_FILTER
20pF
50V
50V
C3713-*1
TU_I2C_FILTER
TDTR-T036F
NTSC_2INPUT_H_LGIT
TU3702-*2
14
+ B 3 [ 3 . 3 V ]
13
+ B 2 [ 1 . 2 V ]
5
NC_2
12
GND
11
VIDEO
2
BST_CTL
10
NC_4
4
NC_1[RF_AGC]
1
RF_S/W_CTL
17
DIF_1[N]
9
S I F
8
NC_3
3
+B1[5V]
16
IF/AGC
7
SDAT
6
SCLT
15
RESET
18
D I F _ 2 [ P ]
SHIELD
19
FE_TS_DATA[6]
FE_TS_DATA[2]
FE_TS_DATA[7]
FE_TS_DATA[1]
FE_TS_DATA[4]
FE_TS_DATA[5]
FE_TS_DATA[3]
FE_TS_DATA[0]
200mA
c l o s e t o I F l i n e
R1
FE_BOOSTER_CTL
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
close to TUNER
TUNER MULTI-OPTION
FE_AGC_SPEED_CTL
OPTION : RF AGC
C l o s e t o t h e C I S l o t
close to TUNER
G P I O m u s t b e a d d e d .
60mA
T h i s w a s b e i n g a p p l i e d t o t h e o n l y c h i n a d e m o d ,
s o t h i s h a s t o b e d e l e t e d i n b o t h m a i n a n d I S D B s h e e t .
close to TUNER
GP2R_GLOBAL_TUNER_BLOCK for Small Model
s h o u l d b e g u a r d e d b y g r o u n d
R2
380mA
R2
R1
Vo=0.8*(1+R1/R2)
P u l l - u p c a n ’ t b e a p p l i e d
because of MODEL_OPT_2
C l o s e t o t h e t u n e r
BOOSTER : CHINA OPT
T h e p u l l - u p / d o w n o f L N A 2 _ C T L
is depended on MODLE_OPT_1.
GPIO must be added for FE_BOOSTER_CTL
l o c a t i o n m o v e m e n t , 0 9 2 9
Add,0929
a d d , 0 9 2 9
S i z e c h a n g e , 0 9 2 9
S i z e c h a n g e , 0 9 2 9
c l o s e t o t h e t u n e r p i n , a d d , 0 9 0 2 9
P l e a s e , c h e c k M u l t i I t e m ! 1 0 / 1 2
TUNER_SMALL
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GP2R
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.
V_SYNC
L/DIM_SCLK
LED_DRIVER_D/L_SCL
L/DIM_MOSI
LED_DRIVER_D/L_SDA
3D_SYNC_RF
3D_GPIO_2
DD_MREMOTE
3D_GPIO_1
M_REMOTE_RX
M_RFModule_RESET
DC_MREMOTE
M_REMOTE_TX
NON_L/DIM_LED/DRIVER
NON_L/DIM
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GP2R
NON_3D_SG
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