LG 32LA62 Series, Service Manual

Page: 46 / 128

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.
TUNER_SIF_TU
C6601
0.1uF
16V
TU_W
FE_DEMOD1_TS_DATA[1]
FE_DEMOD1_TS_DATA[3]
TU_+1.8V_TU
LNB_OUT
+3.3V_TU
I2C_SCL6_TU
TUNER_SIF_TU
I2C_SCL6_TU
C6602
0.1uF
TU_M/W
TU_CVBS_TU
R6610
0
TU_W
I2C_SDA6_TU
IF_N
TU_GND_B
I2C_SDA6_TU
+3.3V_TU
+3.3V_TU
R6608
0
TU_W
FE_DEMOD3_TS_DATA
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_DATA[0]
TUNER_SIF_TU
I2C_SCL4_TU
I2C_SCL6_TU
FE_DEMOD1_TS_ERROR
LNB_TX
FE_DEMOD2_TS_VAL
+3.3V_TU
FE_LNA_Ctrl2
R6606
0
TU_S/N/Q/W
TU_PIN2
R6611
0
TU_W
TUNER_SIF_TU
R6604
0
TU_S/N/Q/W
+3.3V_TU
TU_GND_A
TU_+1.8V_TU
TU_+1.8V_TU
FE_DEMOD2_TS_ERROR
C6600
0.1uF
16V
TU_W
FE_DEMOD1_TS_DATA[2]
R6607
0
TU_S/N/Q/W
LNB_OUT
I2C_SDA4_TU
FE_DEMOD3_TS_CLK
FE_DEMOD1_TS_CLK
R6609
0
TU_W
Power_D_Demod_TU
FE_DEMOD2_TS_SYNC
R6612 0
TU_Q
RF_SWITCH_CTL_50
FE_DEMOD1_TS_DATA[4]
FE_DEMOD1_TS_DATA[5]
FE_DEMOD1_TS_DATA[6]
FE_DEMOD3_TS_ERROR
I2C_SDA6_TU
IF_AGC_TU
I2C_SCL6_TU
TU_GND_A
CN_RESET_TU
TU_GND_B
FE_DEMOD3_TS_VAL
TU_GND_B
R6605
0
TU_S/N/Q/W
+3.3V_TU
R6602
100
TU_M/W
RF_SWITCH_CTL_TU
FE_DEMOD3_TS_SYNC
FE_DEMOD2_TS_CLK
FE_DEMOD1_TS_DATA[7]
FE_DEMOD2_TS_ERROR
TU_GND_A
FE_LNA_Ctrl1
LNB_TX
TU_PIN2
/TU_RESET1_TU
FE_DEMOD2_TS_DATA
TU_GND_B
I2C_SDA6_TU
RF_SWITCH_CTL_50
+1.23V_D_Demod_TU
/TU_RESET2
FE_DEMOD3_TS_ERROR
TU_+1.8V_TU
FE_DEMOD1_TS_VAL
/S2_RESET_TU
IF_P
TU_PIN2
TU_GND_B
R6601
10K
TU_W
R6600
10K
TU_W
TU6601-*1
TDSQ-G601D(B)
TU_Q_T2/S2
1
NC_1
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
NC_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
DEMOD_RESET
38
SHIELD
32
+B4[3.3V]
33
F22_OUTPUT
34
DEMOD_SCL
35
DEMOD_SDA
36
LNB
37
GND_4
A1
A1
B1
B1
TU6600
TDSS-G501D(B)
TU_S_T
5
3.3V
11
DLIF_[N]
2
RESET
10
DLIF_[P]
4
SDA
1
NC_1
9
IF_AGC
8
NC_3
3
SCL
7
1.8V
6
NC_2
12
SHIELD
A1
A1
B1
B1
TU6503
TDSM-C601D(B)
TU_M_CN
8 CVBS
9 NC_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
TU6601
TDSQ-G501D(B)
TU_Q_T/S2
1
NC_1
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
NC_2
7
+B2[1.8V]
8
NC_3
9
IF_AGC
10
DIF[P]
11
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
DEMOD_RESET
38
SHIELD
32
+B4[3.3V]
33
F22_OUTPUT
34
DEMOD_SCL
35
DEMOD_SDA
36
LNB
37
GND_4
A1
A1
B1
B1
TU6602
TDSW-J501F(B)
TU_W_JP
1
+3.3V_SPLITTER
2
RESET_T1
3
SCL_T
4
SDA_T
5
+3.3V_T1
6
NC_1
7
+1.8V_T1
8
NC_2
9
NC_3
10
NC_4
11
NC_5
12
+3.3V_T2
13
+1.8V_T2
28
GND_2
29
GND_3
30
+B5[1.23V]
31
D_RESET
36
LNB
32
+B6[3.3V]
33
GND_4
34
D_SCL
35
D_SDA
GND_5
37
GND_6
38
GND_7
39
TS1_ERROR
40
TS1_SYNC
41
TS1_VALID
42
TS1_MCLK
43
TS1_DATA
44
TS2_ERROR
45
TS2_SYNC
46
TS2_VALID
47
TS2_MCLK
48
TS2_DATA
49
NC_6
50
RESET_T2
51
LNA_CTRL_1
57
LNA_CTRL_2
58
SHIELD
59
NC_7
55
+3.3V[S_TUNER]
54
SDA_S
53
SCL_S
52
NC_8
56
A1
A1
B1
B1
C6603
1000pF
TU_M_CN
C6604
1000pF
TU_M_CN
66
TU_SYMBOL_EU_M 2012.07.10
52
50
9
31
13
3
33
46
26
11
58
49
18
12
19
27
22
GND seperation for CHINA tuner
53
56
7
55
6
23
20
42
30
41
34
40
25
57
35
48
21
44
24
32
16
45
4
10
17
14
54
36
1
8
51
2
43
47
5
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only