LG Electronics 37LN54**-Z* NETCAST4.0 EU&CHUNA_TUNER_BLOCK

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.
2012/06/19
TUNER_EU 26
NC4_S7LRM
FE_TS_DATA[5]
FE_TS_DATA[6]
FE_TS_DATA[7]
FE_TS_DATA[0]
FE_TS_DATA[2]
FE_TS_DATA[3]
FE_TS_DATA[4]
FE_TS_DATA[1]
R2605 22
DVB_S
C2616
0.1uF
16V
CHINA
R2600
51
DVB_S
TU_CVBS
C2604
0.1uF
16V
R2613
10
F_NIM/CHINA
R2624
220
T2_C_S2/CHINA
TU_SIF
R2632
1
Q2601
MMBT3906(NXP)
T2_C_S2/CHINA
E
B
C
R2615
1K
R2616
4.7K
T2_C_S2/CHINA
R2633
12K
1%
F_NIM/CHINA
+1.23V_TU
R2604 22
DVB_S
R2610-*1
MLG1005SR27JT
TU_I2C_FILTER
+3.3V_TU
FE_TS_DATA[0-7]
L2603
BLM18PG121SN1D
CHINA
R2612 0
OPT
AR2603 47
CHINA
TU_GND_A
C2634
0.1uF
16V
DVB_S
C2618
10uF
6.3V
CHINA
L2601
BLM18PG121SN1D
CHINA
C2621
100pF
50V
+3.3V_TU
+3.3V_S2_DE
C2633
0.1uF
16V
CHINA
R2606
0
CHINA
C2620
0.1uF
16V
CHINA
TU_GND_B
FE_TS_VAL_ERR
R2610
TU_I2C_NON_FILTER
33
TUNER_RESET
R2608
0
H_NIM/NON_T2
C2644
0.1uF
16V
FE_TS_CLK
C2607
20pF
50V
C2614
100pF
50V
CHINA
+1.8V_TU
C2630
0.1uF
16V
LNA2_CTL
R2629
3.3K
F_NIM/CHINA
+3.3V_S2_DE
R2635
680
OPT
Q2600
MMBT3906(NXP)
T2_C_S2/CHINA
E
B
C
LNB_TX
C2625
0.1uF
16V
DVB_S
R2609
TU_I2C_NON_FILTER
33
L2600
BLM18PG121SN1D
DVB_S
FE_TS_ERR
C2623
0.1uF
16V
R2603
0
RF_SW_OPT
L2606
CIS21J121
+3.3V_TU
C2651
20pF
50V
R2618
470
T2_C_S2/CHINA
C2626
0.1uF
16V
DEMOD_SDA
FE_TS_VAL
+3.3V_Normal
AR2602 47
CHINA
R2609-*1
MLG1005SR27JT
TU_I2C_FILTER
+3.3V_TU_CHINA
+3.3V_TU_CHINA
TU_SDA
FE_TS_ERR
AR2601 47
CHINA
C2641
0.1uF
16V
C2617
0.1uF
16V
CHINA
C2622
0.1uF
16V
C2635
0.1uF
16V
+1.23V_TU
TU_GND_B
LNB_OUT
RF_SWITCH_CTL
+3.3V_TU
C2611
0.1uF
16V
DVB_S
R2628
0
IF_AGC_MAIN
IC2603
AP1117E18G-13
OUT
INADJ/GND
R2607 0
OPT
R2637
680
OPT
IF_P_MSTAR
TU_SCL
C2645
0.1uF
16V
F_NIM/CHINA
DEMOD_SCL
C2602
100pF
50V
R2634
22K
1%
F_NIM/CHINA
C2600
0.1uF
16V
R2614
100K
R2625
220
T2_C_S2/CHINA
FE_TS_VAL
C2603
0.1uF
16V
RF_SW_OPT
TU_GND_B
R2648
200
1%
OPT
C2646
22uF
10V
IF_N_MSTAR
FE_TS_SYNC
C2608
100pF
50V
DVB_S
C2624
100pF
50V
DVB_S
R2647
0
+1.8V_TU
R2636
2K
OPT
R2611
100
+3.3V_TU
C2612
20pF
50V
TU_GND_B
IC2602
TJ4220GDP-ADJ
F_NIM/CHINA
3
VIN3
2
EN2
4
NC4
1
NC_1
5NC_2
6VOUT
7ADJ/SENSE
8GND
9
[EP]GND
+3.3V_TU
+3.3V_TU
C2619
0.1uF
16V
F_NIM/CHINA
L2602
BLM18PG121SN1D
DVB_S
+3.3V_TU
C2643
22uF
10V
C2648
0.1uF
16V
R2619
82
T2_C_S2/CHINA
C2652
20pF
50V
R2620
1K
S2_RESET
+1.23V_TU
IF_AGC_SEL
LNA_CTRL_1
BR_RESET_DEMOD
LNA_CTRL_2
R2644 0
CHINA
TU2603
TDSS-G501D
TUNER_T/C_H/NIM
53.3V
11 DLIF[N]
2RESET
10 DLIF_[P]
4SDA
1NC
9IF_AGC
8ALIF_[P]
3SCL
71.8V
6ALIF_[N]
12
SHIELD
A1 A1 B1
B1
TU2602
TDSQ-G601D
TUNER_T2/C/S2_F/NIM
1NC_1
2RESET
3SCL
4SDA
5+B1[3.3V]
6SIF
7+B2[1.8V]
8CVBS
9NC_2
10 NC_3
11 NC_4
12 NC_5
13 NC_6
14 NC_7
15 GND_1
16 ERROR
17 SYNC
18 VALID
19 MCLK
20 D0
21 D1
22 D2
23 D3
24 D4
25 D5
26 D6
27 D7
28 GND_2
29 GND_3
30 +B3[1.23V]
31 S2/T2_RESET
38
SHIELD
32 +B4[3.3V]
33 S2_F22_OUTPUT
34 S2/T2_SCL
35 S2/T2_SDA
36 LNB
37 GND_4
A1 A1 B1
B1
TU2601
TDSQ-G501D
TUNER_T/C/S2_F/NIM
1NC_1
2RESET
3SCL
4SDA
5+B1[3.3V]
6NC_2
7+B2[1.8V]
8NC_3
9T/C_IF_AGC
10 T/C_DIF[P]
11 T/C_DIF[N]
12 NC_4
13 NC_5
14 NC_6
15 GND_1
16 ERROR
17 SYNC
18 VALID
19 MCLK
20 D0
21 D1
22 D2
23 D3
24 D4
25 D5
26 D6
27 D7
28 GND_2
29 GND_3
30 +B3[1.23V]
31 S2_RESET
38
SHIELD
32 +B4[3.3V]
33 S2_F22_OUTPUT
34 S2_SCL
35 S2_SDA
36 LNB
37 GND_4
A1 A1 B1
B1
C2631-*1
10uF
10V
CAP_10uF_X7R_CHINA
C2632-*1
10uF
10V
CAP_10uF_X7R_DVB_S
C2647-*1
10uF
10V
CAP_10uF_X7R_FNIM/CHINA
C2642-*1
10uF
10V
CAP_10uF_X7R
C2615
10uF
6.3V
DVB_S
C2631
10uF
10V
CAP_10uF_X5R_CHINA
C2632
10uF
10V
CAP_10uF_X5R_DVB_S
C2647
10uF
10V
CAP_10uF_X5R_FNIM/CHINA
C2642
10uF
10V
CAP_10uF_X5R
R2617
0
NON_CHINA
R2630
0
NON_CHINA
TU_GND_B
R2631
0
NON_CHINA
R2622
0
NON_CHINA
R2638
0
NON_CHINA
R2623
0
NON_CHINA
R2639
0
NON_CHINA
R2626
0
NON_CHINA
R2627
0
NON_CHINA
R2643
0
NON_CHINA
TU_GND_A
R2642
0
NON_CHINA
R2646
0
NON_CHINA
R2645
0
NON_CHINA
R2640
0
NON_CHINA
R2641
0
NON_CHINA
R2621
0
NON_CHINA
TU2604
TDSM-C601D
TUNER_CHINA_F/NIM
8CVBS
9NC_1
10 NC_2
11 NC_3
12 +B3[3.3V]
13 +B4[1.23V]
14 DEMOD_RESET
15 GND
16 NC_4
17 SYNC
18 VALID
19 MCLK
20 D0
21 D1
22 D2
23 D3
24 D4
25 D5
26 D6
27 D7
RF_S/W_CTL 50
RESET 51
SHIELD
59
SIF 55
+B1[3.3V] 54
SDA 53
SCL 52
+B2[1.8V] 56
A1 A1
A2
A2
B1 B1
B2
B2
R2602
10
NON_T2_C_S2/CHINA
R2601
10
NON_T2_C_S2/CHINA
AR2601-*1
0
1/16W
DVB_S
AR2602-*1
0
1/16W
DVB_S
AR2603-*1
0
1/16W
DVB_S
NETCAST4.0 EU&CHUNA_TUNER_BLOCK
Close to TUNER
Vo=VREF*(1+R2/R1)
close to TUNER
R1
R1
Close to the tuner
ERROR & VALID PIN
VREF=1.25V
R2
Vo=0.8*(1+R2/R1)
should be guarded by ground
R2
GPIO must be added.
This was being applied to the only china demod,
so this has to be deleted in both main and ISDB sheet.
GND seperation for CHINA tuner
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Only for training and service purposes
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