LG 42LD460 Service Manual page 25

LGIT CAN H/N TUNER for US&KOR&BRAZIL&TAIWAN&AUS
RF_S/W_CTL
1
BST_CTL
2
+B1[5V]
3
NC_1[RF_AGC]
4
NC_2
5
SCLT
6
SDAT
7
NC_3
8
SIF
9
NC_4
10
VIDEO
11
GND
12
+B2[1.2V]
13
+B3[3.3V]
14
RESET
15
IF/AGC
16
DIF_1[N]
17
DIF_2[P]
18
19
SHIELD
TU5001-*1
TDTR-T035F
NTSC_2INPUT_H_LGIT
ANT_PWR[OPT]
1
BST_CNTL
2
+B
3
NC[RF_AGC]
4
AS
5
SCL DVB_1INPUT_H_LGIT
6
SDA
7
TU5001
NC(IF_TP)
8
SIF
9
NC TDTJ-S001D
10
VIDEO
11
GND
12
1.2V
13
3.3V
14
RESET
15 ANT_PWR[OPT]
IF_AGC_CNTL
16 1
DIF_1
17
DIF_2
18 BST_CNTL
2
19
SHIELD
+B
3
TU5001-*2
TDVJ-H031F NC[RF_AGC]
4
NTSC_1INPUT_V_LGIT
AS
5
SCL
ANT_PWR[OPT]
1
6
BST_CNTL
2
+B
3 SDA
NC[RF_AGC]
4
7
AS
5
SCL
6
NC[IF_TP]
SDA
7
8
NC(IF_TP)
8
SIF
9
SIF
NC
10 9
VIDEO
11
GND
12 NC
1.2V
13 10
3.3V
14
RESET
15 VIDEO
IF_AGC_CNTL
16
11
DIF_1
17
DIF_2
18 GND
19 12
SHIELD
1.2V
13
TU5001-*3
TDVJ-H001F 3.3V
14
NTSC_1INPUT_H_LGIT
RESET
15
IF_AGC_CNTL
16
NTSC_1INPUT_H_SANYO
TU5001-*4
DIF_1
UDA45AL
17
ANT_PWR[OPT]
1
DIF_2
BST_CNTL
2
18
+B
3
NC[RF_AGC]
4
AS
5
SCL
6
19
SDA
7
NC(IF_TP)
8
SIF
9
NC SHIELD
10
VIDEO
11
GND
12
1.2V
13
3.3V
14
RESET
15
IF_AGC_CNTL
16
DIF_1
17
DIF_2
18
19
SHIELD
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.
All manuals and user guides at all-guides.com
OPTION : RF S/W
RF_SWITCH_CTL
C5002
0.1uF
16V
RF_S/W_OPT
Pull-up can't be applied
because of MODEL_OPT_2
+5V_TU
R5002
0
C5003
C5001
RF_S/W_OPT 0.1uF
100pF
16V
50V
R5001
0
RF_AGC_OPT
+3.3V_TU
+1.2V/+1.8V_TU
C5006
C5007
100pF
0.1uF
50V
16V
0
R5003
+3.3V_TU
C5031
0.1uF
16V
+5V_TU
L5001
MLB-201209-0120P-N2
BOOSTER_OPT
R5019
R5014
10K
0
BOOSTER_OPT
BOOSTER_OPT
E
R5017
Q5001
2.2K
ISA1530AC1
B
BOOSTER_OPT BOOSTER_OPT
C
C
BOOSTER_OPT
Q5002 B
2SC3052
BOOSTER_OPT
C5011
E
0.01uF
25V
BOOSTER_OPT
+3.3V_TU
NON_BR_TU_I2C
NON_BR_TU_I2C
R5018
1.2K R5020
33 R5015 1.2K
NON_BR_TU_I2C
33 R5016
NON_BR_TU_I2C
C5012 C5013
18pF 18pF
50V 50V
NON_BR_TU_I2C NON_BR_TU_I2C
+3.3V_TU
R5011
R5009
100K
100
TUNER_RESET
C5010
0.1uF
16V
NON_DEMOD_OPT
0
R5034
IF_N_MSTAR
NON_DEMOD_OPT
0
R5035
IF_P_MSTAR
R5006 100
DEMOD_OPT
R5007 100
DEMOD_OPT
IC5001
AZ1117H-ADJTRE1(EH11A)
+1.2V/+1.8V_TU
R5036
10
INPUT ADJ/GND
3 1
2
OUTPUT
R5038
1.2K
R5033
1
C5029
10uF
10V
OPTION : BOOSTER
R5021
10K
LNA2_CTL
The pull-up/down of LNA2_CTL
is depended on MODLE_OPT_1.
GPIO must be added for FE_BOOSTER_CTL
Option name:BR_TU_I2C
BRAZIL model use I2C Standard Mode
BR_TU_I2C BR_TU_I2C
C5025
R5018-*1 R5020-*1
3.3K 0.1uF 16V
3.3K
TU_SCL
BR_TU_I2C BR_TU_I2C
R5015-*1 R5016-*1
TU_SDA 100 100
1/16W 1/16W
5% 5%
BR_TU_I2C BR_TU_I2C
C5012-*1 C5013-*1
47pF 47pF
50V 50V
R5024 0
R5022
1K
IF_AGC
C5016
0.1uF
should be guarded by ground
16V
OPT
Close to the tuner
IF_N_EXT
IF_P_EXT
+5V_General
+5V_TU
L5002
200mA
BLM18PG121SN1D
C5018 C5019 C5021 C5023
C5028
0.1uF
22uF 22uF 0.1uF
0.1uF 16V
16V 16V 16V
16V
OPT
+3.3V_Normal
+3.3V_TU
L5003
60mA
BLM18PG121SN1D
C5017 C5024
C5020 C5022
0.1uF
22uF 0.1uF
22uF
16V 16V
16V
16V
OPT
OPTION : RF AGC
C5026 C5027
0.1uF
10uF
16V
10V
RF_AGC_OPT
RF_AGC_OPT
C
R5028
10K
Q5003 B GPIO must be added.
IF_AGC_SEL
2SC3052
RF_AGC_OPT
RF_AGC_OPT
E
+5V_TU
R5029
470
R5032
82
TU_SIF
E
B
ISA1530AC1
R5025 Q5004
C
4.7K
+5V_TU
R5026
1K
R5030 R5031
OPT
220
220
NON_TU_CVBS_BYPASS
R5039
0
TU_CVBS
TU_CVBS_BYPASS
E
NON_TU_CVBS_BYPASS
B Q5005
R5027 ISA1530AC1
C
1K
OPT
*Change History.
Ver 1.0 --> 1.1:Change of chip type, 091019, w.s.jeong
Ver 1.1 --> 1.2:Change of chip type, Add of Tuner P/N for NTSC_1INPUT 091116, w.s
1.De-reting
1) R5029,R5030,R5031 : 1005 Type ==> 1608 Type(w.s.Jeong_1019)
2) R5030,R5031 : 200/1608 Type ==> 220/2012 Type(w.s.Jeong_1116)
2.ADD of TUNER P/N (w.s.Jeong_1116)
CONTROL_ATTEN
This was being applied to the only china demod,
so this has to be deleted in both main and ISDB sheet.
GP2_Saturn7M Ver. 1.1
26
ATSC_CAN TUNER