LG 42LA62 Series Service Manual page 46

B1
GND seperation for CHINA tuner
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.
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
TU6600
TDSS-G501D(B)
TU_S_T
NC_1
1
RESET
2
SCL
3
I2C_SCL6_TU TU6503
SDA
4
TDSM-C601D(B)
I2C_SDA6_TU
3.3V
5
+3.3V_TU
NC_2
6
TUNER_SIF_TU
1.8V
TU_M_CN
7
TU_+1.8V_TU
NC_3
8
IF_AGC
9
DLIF_[P]
10
DLIF_[N]
11
A1 +B3[3.3V]
B1 A1
+B4[1.23V]
12
SHIELD
RF_S/W_CTL
50
RF_SWITCH_CTL_50
RESET
51
TU_PIN2
SCL
52
I2C_SCL6_TU
SDA
53
I2C_SDA6_TU
+B1[3.3V]
54
+3.3V_TU
SIF
55
TUNER_SIF_TU
+B2[1.8V]
56
TU_+1.8V_TU
B1
B1
B2
R6602 TU_PIN2
100
/TU_RESET2
TU_M/W
TU_M/W
C6602
0.1uF
50 RF_SWITCH_CTL_50
51
52 I2C_SCL6_TU
53
I2C_SDA6_TU
54
55 TUNER_SIF_TU
56 TU_+1.8V_TU
57 FE_LNA_Ctrl1
58 FE_LNA_Ctrl2
TU6601 TU6602
TDSW-J501F(B)
TDSQ-G501D(B)
TU_W_JP
TU_Q_T/S2
NC_1
1
RESET
2
SCL
3
SDA
4
+B1[3.3V]
5
NC_2
6
+B2[1.8V]
7
NC_3
CVBS 8 8
IF_AGC
NC_1 9 9
DIF[P]
NC_2 10 10
DIF[N]
NC_3 11 11
NC_4
12 12
NC_5
13 13
NC_6
DEMOD_RESET 14 14
GND_1
GND 15 15
ERROR
NC_4 16 16
SYNC
SYNC 17 17
VALID
VALID 18 18
MCLK
MCLK 19 19
D0
D0 20 20
D1
D1 21 21
D2
D2 22 22
D3
D3 23 23
D4
D4 24 24
D5
D5 25 25
D6
D6 26 26
D7
D7 27 27
GND_2
28
A1
GND_3
A1 29
59 A2
+B3[1.23V]
30
DEMOD_RESET
31
+B4[3.3V]
32
F22_OUTPUT
33
DEMOD_SCL
34
DEMOD_SDA
35
TU_Q
LNB
36
R6612 0
GND_4
37
B1 A1
B1 A1
38
SHIELD
NC_6
50
RESET_T2
51
SCL_S
TU_PIN2
52
SDA_S
53
+3.3V[S_TUNER]
54
+3.3V_TU
NC_7
55
NC_8
56
TU_W LNA_CTRL_1
10K TU_W
57
R6601
C6600
LNA_CTRL_2
0.1uF
58
16V
TU_W
10K TU_W
B1
R6600
C6601
B1
0.1uF
16V
59
SHIELD
+5V_OR_+3.3V_SPLITTER
1
1
RF_SWITCH_CTL_TU
RESET_T1
2
2
/TU_RESET1_TU
SCL_T
3
3
I2C_SCL6_TU
SDA_T
4
4
I2C_SDA6_TU
+3.3V_T1
5
5
+3.3V_TU
NC_1
6
6
TUNER_SIF_TU
+1.8V_T1
7
7
TU_+1.8V_TU
NC_2
8
8
TU_CVBS_TU
NC_3
9
9
IF_AGC_TU
NC_4
10
10
IF_P
NC_5
11
IF_N 11
+3.3V_T2
12
+3.3V_TU 12
+1.8V_T2
13
Power_D_Demod_TU 13
CN_RESET_TU 14
FE_DEMOD1_TS_ERROR 16
17
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_VAL 18
FE_DEMOD1_TS_CLK 19
FE_DEMOD1_TS_DATA[0] 20
FE_DEMOD1_TS_DATA[1] 21
FE_DEMOD1_TS_DATA[2] 22
FE_DEMOD1_TS_DATA[3] 23
FE_DEMOD1_TS_DATA[4] 24
25
FE_DEMOD1_TS_DATA[5]
26
FE_DEMOD1_TS_DATA[6]
27
FE_DEMOD1_TS_DATA[7]
GND_2
28
GND_3
29
+B5[1.23V]
30
30
+1.23V_D_Demod_TU
D_RESET
31
31
/S2_RESET_TU
+B6[3.3V]
32
32
+3.3V_TU
GND_4
33
33
LNB_TX
D_SCL
34
34
I2C_SCL4_TU
D_SDA
35
35
I2C_SDA4_TU
LNB
LNB_OUT
36
36
GND_5
37
GND_6
38
GND_7
39
TS1_ERROR
40
FE_DEMOD2_TS_ERROR 40
TS1_SYNC
41
FE_DEMOD2_TS_SYNC 41
TS1_VALID
42
FE_DEMOD2_TS_VAL 42
TS1_MCLK
43
FE_DEMOD2_TS_CLK 43
TS1_DATA
44
44
FE_DEMOD2_TS_DATA
TS2_ERROR
45
FE_DEMOD3_TS_ERROR 45
TS2_SYNC
46
FE_DEMOD3_TS_SYNC 46
TS2_VALID
47
FE_DEMOD3_TS_VAL 47
TS2_MCLK
48
FE_DEMOD3_TS_CLK 48
TS2_DATA
49
49
FE_DEMOD3_TS_DATA
A1
A1
LNB_TX FE_DEMOD3_TS_ERROR
LNB_OUT
FE_DEMOD2_TS_ERROR
TU_Q_T2/S2
TU6601-*1
TDSQ-G601D(B)
NC_1
1
RESET
2
SCL
3
SDA
4
+B1[3.3V]
5
SIF
6
+B2[1.8V]
7
CVBS
8
NC_2
9
NC_3
10
NC_4
11
NC_5
12
NC_6
13
NC_7
14
GND_1
15
ERROR
16
SYNC
17
VALID
18
MCLK
19
D0
20
D1
21
D2
22
D3
23
D4
24
D5
25
D6
26
D7
27
GND_2
28
GND_3
29
+B3[1.23V]
30
DEMOD_RESET
31
+B4[3.3V]
32
F22_OUTPUT
33
DEMOD_SCL
34
DEMOD_SDA
35
LNB
36
GND_4
37
B1 A1
B1 A1
38
SHIELD
TU_SYMBOL_EU_M 2012.07.10
66
LGE Internal Use Only