LG 26LV255H-ZA, Руководство по обслуживанию

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THERMAL
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.
FE_TS_DATA[0]
FE_TS_DATA[2]
FE_TS_DATA[4]
FE_TS_DATA[1]
FE_TS_DATA[5]
FE_TS_DATA[3]
FE_TS_DATA[6]
FE_TS_DATA[7]
R3761 0
HALF_NIM
R3750
1K
OPT
TU_CVBS
R3768
1.2K
HALF_NIM
C3737
100pF
50V
R3707 0
OPT
C3705
100uF
16V
FULL_NIM
R3742
4.7K
FULL_NIM
+5V_TU
C3704
0.1uF
16V
C3709
0.01uF
25V
BOOSTER_OPT
LNA2_CTL
RF_SWITCH_CTL
C3711
18pF
50V
TU_I2C_NON_FILTER
R3766
1
1/10W
HALF_NIM
+3.3V_TU
R3741
1.2K
TU_IIC_ATSC_SANYO
+5V_Normal
R3754
10K
OPT
C3725
0.1uF
16V
R3764
0
1/10W
FULL_NIM
IF_P_MSTAR
TUNER_RESET
R3702 100
FULL_NIM
R3760 0
HALF_NIM
R3743
10K
BOOSTER_OPT
R3752
220
R3753
4.7K
R3737
2.2K
BOOSTER_OPT
C3703
100pF
50V
C3719
22uF
10V
R3703
150
OPT
Q3704
2SC3052
OPT
E
B
C
+1.2V/+1.8V_TU
R3745
10K
BOOSTER_OPT
R3740
1.2K
TU_IIC_ATSC_SANYO
R3705 0
RF_SW_OPT
+5V_TU
R3735
TU_I2C_NON_FILTER
33
+3.3V_TU
IC3701-*1
SC4215ISTRT
FULL_NIM_SEMTEK
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
L3701
BLM18PG121SN1D
BOOSTER_OPT
C3713
18pF
50V
TU_I2C_NON_FILTER
R3704
0
HALF_NIM
C3724
0.1uF
16V
R3748-*1
10K
FULL_NIM_BCD
C3729
0.1uF
16V
FULL_NIM
+3.3V_Normal
C3726
0.1uF
16V
+3.3V_TU
L3704
FULL_NIM_BCD
R3736
TU_I2C_NON_FILTER
33
C3712
22pF
50V
FULL_NIM
TU_SIF
C3710
0.1uF
16V
IC3701
AP2132MP-2.5TRG1
FULL_NIM_BCD
3
VIN
2
EN
4
VCTRL
1
PG
5
NC
6
VOUT
7
ADJ
8
GND
9
[EP]
+5V_TU
C3730
10uF
10V
FULL_NIM
DEMOD_SDA
+3.3V_TU
Q3702
2SC3052
BOOSTER_OPT
E
B
C
C3738
0.1uF
16V
C3717
0.1uF
16V
R3734
0
BOOSTER_OPT
DEMOD_RESET
Q3703
ISA1530AC1
E
B
C
R3748
5.1K
FULL_NIM_SEMTEK
R3732
100
R3749 0
C3728
0.1uF
16V
OPT
C3702
0.1uF 16V
IF_AGC_MAIN
+1.2V/+1.8V_TU
C3723
22uF
10V
R3769 10K
FULL_NIM_BCD
R3771 10K
FULL_NIM_BCD
+1.2V/+1.8V_TU
+3.3V_TU
+3.3V_TU
C3707
100pF
50V
IF_N_MSTAR
R3733
100K
R3744
4.7K
FULL_NIM
Q3705
ISA1530AC1
E
B
C
R3767
10
HALF_NIM
C3731
10uF
10V
OPT
CONTROL_ATTEN
Q3701
ISA1530AC1
BOOSTER_OPT
E
B
C
TU_SCL
R3751
220
TU3702
TDTJ-S001D
DVB_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
SIF
8
NC[IF_TP]
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
+5V_TU
R3758
82
R3747
9.1K
1005
FULL_NIM
C3727
0.1uF
16V
C3701
0.1uF
16V
R3770 10K
FULL_NIM_SEMTEK
TU_SDA
C3714
22pF
50V
FULL_NIM
R3755
470
+5V_TU
DEMOD_SCL
R3762 0
OPT
C3708
0.1uF
16V
R3701 100
FULL_NIM
IF_AGC_SEL
C3706
0.1uF
16V
IC3703
AZ1117BH-ADJTRE1
HALF_NIM_1.2V_BCD
2
OUTPUT
3
INPUT
1
ADJ/GND
C3722
22uF
16V C3715
22uF
10V
C3739
10uF
6.3V
CN
C3741
10uF
10V
HALF_NIM
C3740
0.1uF
16V
HALF_NIM
L3703
MLB-201209-0120P-N2
L3702
MLB-201209-0120P-N2
IC3703-*1
AP1117EG-13
HALF_NIM_1.2V_DIODES
ADJ/GND
OUT IN
R3741-*1
1K
TU_IIC_NON_ATSC_SANYO
R3740-*1
1K
TU_IIC_NON_ATSC_SANYO
C3742
20pF
50V
TU_I2C_FILTER
C3743
20pF
50V
TU_I2C_FILTER
R3735-*1
TU_I2C_FILTER
COIL
R3736-*1
TU_I2C_FILTER
COIL
C3713-*1
20pF
50V
TU_I2C_FILTER
C3711-*1
20pF
50V
TU_I2C_FILTER
+5V_TUNER
R3721
0
FULL_NIM
R3727
0
FULL_NIM
R3729
0
FULL_NIM
R3722
0
FULL_NIM
R3726
0
FULL_NIM
R3724
0
FULL_NIM
FE_TS_VAL_ERR
FE_TS_SYNC
R3728
0
FULL_NIM
R3723
0
FULL_NIM_CHINA
FE_TS_CLK
R3730
0
FULL_NIM
R3725
0
FULL_NIM_CHINA
FE_TS_DATA[0-7]
R3731
0
FULL_NIM
R3706
0
FULL_NIM_BR
TU3701
TDFR-C036D
CN_2INPUT_H_LG3911
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
SIF
10
NC_3
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
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
TU3701-*2
TDFR-B036F
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 SIF
10
NC_4
11 VIDEO
12
GND
13 +B2[1.2V]
14
+B3[3.3V]
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
TU3701-*4
TDFR-C236D
CN_2INPUT_H_ALTO
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
SIF
10
NC_3
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
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
TU3702-*4
TDTJ-S101D
GP2R_AU_1INPUT_H_LGIT
14
+B3[3.3V]
13
+B2[1.2V]
5
MOPLL_AS
12
GND
11
VIDEO
2
NC_1
10
NC_3
4
RF_AGC
1
ANT_PWR
17
DIF_1[N]
9
SIF
8
NC_2
3
+B1[5V]
16
IF_AGC
7
SDA
6
SCL
15
RESET
18
DIF_2[P]
19
SHIELD
TU3702-*3
UDA55AL
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
SIF
8
NC(IF_TP)
3
+B[+5V]
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
TU3702-*1
TDVJ-H101F
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
SIF
8
NC(IF_TP)
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
TU3702-*2
TDTR-T036F
NTSC_2INPUT_H_LGIT
14
+B3[3.3V]
13
+B2[1.2V]
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
SIF
8
NC_3
3
+B1[5V]
16
IF/AGC
7
SDAT
6
SCLT
15
RESET
18
DIF_2[P]
19
SHIELD
R2
R2
FE_AGC_SPEED_CTL
Close to the tuner
GP2R_LARGE_TUNER
1. should be guarded by ground
2. No via on both of them
3. Signal Width >= 12mils
Signal to Signal Width = 12mils
Ground Width >= 24mils
close to TUNER
BOOSTER : CHINA OPT
close to TUNER
R1
Vo=0.8*(1+R1/R2)
200mA
OPTION : RF AGC
FE_BOOSTER_CTL
The pull-up/down of LNA2_CTL
is depended on MODLE_OPT_1.
GPIO must be added for FE_BOOSTER_CTL
R1
380mA
should be guarded by ground
GPIO must be added.
close to TUNER
60mA
This was being applied to the only china demod,
so this has to be deleted in both main and ISDB sheet.
close to IF line
Pull-up can’t be applied
because of MODEL_OPT_2
location movement,0929
Add,0929
close to the tuner pin, add,09029
Size change Size change
Please, check multi Item! 10/12
TUNER_L
20101023
14
GP2R
Close to the CI Slot
TUNER MULTI-OPTION
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only