LG 42LX6500 Service Manual page 29

VERTICAL_NIM
TU2701-*1
TDFR-G155D
CAN H-NIM/NIM TUNER for EU
RF_S/W_CNTL
1
BST_CNTL
2
+B1[5V]
3
NC[RF_AGC]
4
AS
5
HORIZONTAL_NIM
SCL[A_DEMOD]
6
SDA[A_DEMOD]
7
NC(IF_TP) TU2701
8
SIF
9
NC
10 TDFR-G135D
VIDEO
11
GND
12
1.2V
13
3.3V close to TUNER
14
RESET
15
RF_S/W_CNTL
2.5V
16
1
SCL[D_DEMOD]
17
SDA[D_DEMOD]
18
BST_CNTL
ERR
19
2
SYNC
20
VALID
21
+B1[5V]
MCL
22
3
D0
23
D1
24
NC[RF_AGC]
D2
25
4
D3
26
D4
27
AS
D5
28
5
D6
29
D7
30
31
SCL[A_DEMOD]
6
SHIELD
SDA[A_DEMOD]
7
NC(IF_TP)
CN_VERTICAL_LGS8G85 8
TU2701-*2
TDFR-C155D
SIF
9
RF_S/W_CNTL
1
BST_CNTL
2
+B1[+5V] NC
3
10
NC[RF_AGC]
4
NC_1
5
SCLT VIDEO
6
11
SDAT
7
NC_2
8
SIF GND
9
12
NC_3
10
VIDEO
11
GND 1.2V
12
13
+B2[1.2V]
13
+B3[3.3V]
14
3.3V
RESET
15
NC_4 14
16
SCL
17
RESET
SDA
18
ERR 15
19
SYNC
20
2.5V
VALID
21
MCL 16
22
D0
23
SCL[D_DEMOD]
D1
24
D2 17
25
D3
26
SDA[D_DEMOD]
D4
27
D5 18
28
D6
29
ERR
D7
30
31
19
SHIELD
SYNC
20
VALID
21
MCL
22
D0
CN_HORIZONTAL_LGS8G85
23
TU2701-*3
TDFR-C135D
D1
RF_S/W_CNTL
1 24
BST_CNTL
2
+B1[+5V]
3 D2
NC[RF_AGC]
4 25
NC_1
5
SCLT
6 D3
SDAT
7 26
NC_2
8
SIF
9 D4
NC_3
10 27
VIDEO
11
GND
12 D5
+B2[1.2V]
13 28
+B3[3.3V]
14
RESET
15 D6
+B4[2.5V]
16 29
SCL
17
SDA
18 D7
ERR
19 30
SYNC
31
20
VALID
21
MCL
22
D0
23
D1
24
D2
25 SHIELD
D3
26
D4
27
D5
28
D6
29
D7
30
31
SHIELD
EU_VERTICAL_NIM_T2
TU2701-*4
TDFR-G055D
RF_S/W_CNTL
1
BST_CNTL
2
+B1[5V]
3
NC[RF_AGC]
4
AS
5
SCL[A_DEMOD]
6
SDA[A_DEMOD]
7
NC(IF_TP)
8
SIF
9
NC
10
VIDEO
11
GND
12
1.2V
13
3.3V
14
RESET
15
2.5V
16
SCL[D_DEMOD]
17
SDA[D_DEMOD]
18
ERR
19
SYNC
20
VALID
21
MCL
22
D0
23
D1
24
D2
25
D3
26
D4
27
D5
28
D6
29
D7
30
31
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.
ner ( Full Nim )
All manuals and user guides at all-guides.com
RF_SWITCH_CTL
R2754 0
CN
R2720 0
+5V_TU
C2709
C2701
C2708
10uF
0.1uF
C2706 0.1uF
10V
16V C2704
16V
0.1uF OPT
100pF
16V OPT
50V
C
Q2700
2SC3052
R2700 0 OPT
E
OPT
close to TUNER
C2702
0.1uF 16V
+3.3V_TU
+3.3V_TU
+1.2V_TU
CN CN
R2721
C2737 C2738 C2700 C2703 C2707
C2705 100
4700pF 1000pF 100pF 0.1uF
0.1uF
100pF
50V 16V
50V 50V 16V
50V
+2.5V_TU
R2701 0
C2733
0.1uF
16V
EU R2757-*1
47
CN R2757
0
EU
R2717-*1
47
CN R2717
0
EU R2716-*1
47
CN R2716
0
R2711-*1
EU
47
CN R2711
0
EU
R2709-*1
47
CN
R2709
0
EU R2708-*1
47
CN
R2708
0
R2707-*1
EU
47
CN R2707
0
EU R2710-*1
47
CN R2710
0
R2705-*1
EU
47
CN R2705
0
EU R2706-*1
47
CN R2706
0
EU R2704-*1
47
R2704
CN
0
EU R2703-*1
47
R2703
CN
0
Close to the tuner
R2722
CN
+5V_TU
L2700
BLM18PG121SN1D
R2738
Q2701
0 ISA1530AC1
E
B
C
C2718
0.01uF
25V
OPTION : RF AGC
R2724
B 10K
IF_AGC_SEL
OPT
33
R2726
SCL0_3.3V
33
R2727
SDA0_3.3V
R2739
C2790 C2791
C2714
C2712 200
10pF
18pF 10pF
18pF
50V
50V
50V
50V
OPT OPT
R2736 0
B
R2723
100K
TUNER_RESET
C2710
0.1uF
16V
R2702
200
SCL2_3.3V
R2728 33
SDA2_3.3V
B
R2729 33
C2711 C2713
10pF
10pF
50V
50V
FE_TS_ERR
FE_TS_SYNC
FE_TS_VAL
FE_TS_DATA[0-7]
FE_TS_DATA_CLK
FE_TS_DATA[0]
FE_TS_DATA[1]
FE_TS_DATA[2]
FE_TS_DATA[3]
FE_TS_DATA[4]
FE_TS_DATA[5]
FE_TS_DATA[6]
FE_TS_DATA[7]
0
FE_TS_SERIAL
R2742
10K
R2740
2.2K
C
R2755
Q2703 B 10K
2SC3052
LNA2_CTL/BOSTER_CTL
E
FE_TS_VAL
+5V_TU
R2746
470 R2749
82
FE_TS_ERR
TU_SIF
E
B
ISA1530AC1
R2743 Q2704
+5V_TU C
4.7K
R2741
200
TU_CVBS
E
Q2702
ISA1530AC1
C
+5V_TU
R2712
200
ATV_OUT
E
Q2705
ISA1530AC1
C
+3.3V_TU
L2703
CIC21J501NE
CN
EU
R2713-*1
R2713
56K 75K
R2
1/8W
1/8W
1%
1%
C2715
22uF
10V
+3.3V_NORMAL
+3.3V_TU
L2702
60mA
CIC21J501NE
C2734
C2722 C2724
C2728
0.1uF 0.1uF
0.1uF
22uF
16V 16V
16V 10V
+5V_TU
+5V_NORMAL
L2701
200mA
BLM18PG121SN1D
C2721 C2725 C2727 C2729
0.1uF 10uF 22uF
0.1uF
16V
16V 10V
16V
IC2702-*1
TC7SZ02FU
IN_B 1 5 VCC
DVB_T2
IN_A 2
GND 3 4 OUT_Y
IC2702 +3.3V_TU
NL17SZ08DFT2G
1 DVB_T/C 5
C2736
0.1uF
16V
2
R2758
47
3 4
FE_TS_VAL_ERR
CN CN
R2731-*1 R2756-*1
0 30K
1/16W 1/10W
5% 1%
C2716
100pF
EU
EU
50V R2756
R2731 18K
1% 22K
IC2701
1%
R1 +1.2V_TU
MP2212DN Close to IC
10K
R2732
FB EN/SYNC
1 8 POWER_ON/OFF2_2
Reduce analog beat noise
NR8040T3R6N
GND SW_2
2 7
3A
3.6uH
IN SW_1 L2704
3 6 C2730
C2731 C2735
22uF 0.1uF
10uF
10V
16V
BS VCC
C2720
4 5
0.1uF
16V
R2719 0
R2718
Vout=0.8*(1+R1/R2)
10 C2717
1/10W
1uF
1%
10V
+2.5V_TU
+3.3V_TU
IC2700
AZ2940D-2.5TRE1
VIN VOUT
1 3
$0.11
2 R2744
1
GND
C2719
0.1uF
C2723
16V C2726
10uF 0.1uF
10V
16V
27