LG 65EF9500 Service Manual page 55

A1
A1
47
EMS Improvement
TU_GND_A
C6704 C6705
3300pF 3300pF
630V 630V
TU_GND_B
TUNER EMS GND SEPERATION
DVB ESD
Improvement
C6700
1000pF
630V
C6706 R6700
TU_GND_A3_1nF
0.022uF 0
630V
R6703
TU_GND_A2_0ohm
22
TU_GND_A1_22nF
TU_GND_A4_22ohm
C6706-*1 R6700-*1
C6700-*1
1000pF
0.022uF
0.022uF
630V 630V 1st layer
630V
TU_GND_A1_1nF TU_GND_A2_22nF
TU_GND_A3_22nF
4th Layer
GND_A
TU_GND_A EU/CIS AJJA TW/COL CN/HK KR
X
GND A_1 X 22 nF
GND A_2 X
0 ohm 0 ohm
22 nF
1 nF
GND A_3 X
22 ohm 22 ohm
X
GND A_4
TU_GND_B EU/CIS AJJA TW/COL CN/HK KR
GND B_1
1 nF X 1 nF
GND B_2 10 ohm 22 ohm
X
22 nF
1 nF
GND B_3 1 nF
GND B_4
1 nF 1 nF 22 nF
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright 2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
TU_K_BR TU_H_US
TU6706 TU6705
TDJK-T351F TDJH-H351F
B[3.3V] +3.3V
1 1
NC
2
IF_AGC DIF_AGC
3 3
SCL SCL_RF
4 4
SDA SDA_RF
5 5
IF[P] DIF[P]
6 6
IF[N] DIF[N]
7 7
SIF SIF
8 8
CVBS CVBS
9 9
B1 A1 B1
B1 A1 B1
47
SHIELD SHIELD
C6703 C6707
1000pF 1000pF
630V 630V
C6708
TU_GND_B1_1nF TU_GND_B3_1nF
1000pF
R6708
R6704 630V
0
22 TU_GND_B4_1nF
TU_GND_B5_0ohm
TU_GND_B2_22ohm
C6703-*1 C6707-*1 C6708-*1
0.022uF 0.022uF 0.022uF
630V 630V 630V
TU_GND_B1_22nF TU_GND_B3_22nF TU_GND_B4_22nF
R6708-*1
R6704-*1 R6704-*2
0 10 22
TU_GND_B2_10ohm TU_GND_B5_22ohm
TU_GND_B2_0ohm
GND_B
North.AM BR JP
22 nF
X 1 nF
22 nF 0 ohm
0 ohm
X 22 nF
1 nF
22 ohm 22 ohm
X
North.AM BR JP
X 22 nF
X
22 ohm
X X
22 nF
1 nF 1 nF
1 nF 22 nF 1 nF
TU_M_T2_KR
TU6704
TDJM-H451F
+3.3V
1
NC_1
2
DIFAGC
3
SCL_RF
4
SDA_RF
5
DIF[P]
6
DIF[N]
7
SIF
8
CVBS
9
NC_2
10
+3.3V_RF
11
ERROR
12
GND
13
MCLK
14
SYNC
15
VALID
16
DATA
17
NC_3
18
NC_4
19
NC_5
20
NC_6
21
NC_7
22
NC_8
23
NC_9
24
RESET_DEMOD
25
+3.3V_DEMOD
26
SCL_DEMOD.
27
+1.2V_DEMOD
28
NC_10
29
SDA_DEMOD
30
A1 B1
A1 B1
47
A1
SHIELD A1
TU_M_TW/CO
TU_M_AJ/JA
TU6704-*2
TU6704-*3
TDJM-G355D
TDJM-K351F
B1[+3.3V]
B1[+3.3V] 1
1
NC_1
2
NC_1 AIF_AGC
3 3
SCL_RF
SCL_RF 4
4
SDA_RF
SDA_RF
5 5
NC_2 AIF[P]
6 6
AIF[N]
NC_3 7
7
SIF
SIF
8 8
CVBS CVBS
9 9
NC_2
NC_4 10
10
B2[+3.3V]
NC_5
11 11
ERROR ERROR
12
12
GND
GND 13
13
MCLK MCLK
14 14
SYNC SYNC
15
15
VALID
VALID 16
16
DATA0 DATA0
17 17
DATA1 DATA1
18
18
DATA2
DATA2 19
19
DATA3 DATA3
20 20
DATA4
DATA4 21
21
DATA5
DATA5 22
22
DATA6 DATA6
23 23
DATA7
DATA7 24
24
RESET_DEMOD
RESET_DEMOD 25
25
B2[+3.3V] B3[+3.3V]
26 26
SCL_DEMOD
SCL_DEMOD 27
27
B4[+1.2V]
B3[+1.2V] 28
28
NC_6 NC_3
29 29
SDA_DEMOD
SDA_DEMOD 30
30
A1
A1 B1 A1 B1 A1
A1 B1 A1 B1
47
47
47
SHIELD
SHIELD SHIELD
TU_M_EU TU_W_JP
TU6702 TU6703
TDJM-G351D
TDJW-J351F
B1[+3.3V] +3.3V_LNA
1 1
NC_1 NC_1
2 2
AIF_AGC NC_2
3 3
SCL_RF SCL_RF
4 4
SDA_RF SDA_RF
5 5
AIF[P] NC_3
6 6
AIF[N] NC_4
7 7
SIF NC_5
8 8
CVBS NC_6
9 9
NC_2 NC_7
10 10
B2[+3.3V] +3.3V_RF
11 11
ERROR NC_8
12 12
GROUND GND_1
13 13
MCKL
14
SYNC
15
VALID
16
DATA0
17
DATA1
18
DATA2
19
DATA3
20
DATA4
21
DATA5
22
DATA6
23
DATA7
24
RESET_DEMOD RESET_M_DEMOD
25 25
B3[+3.3V] +3.3V_DEMOD
26 26
SCL_DEMOD SCL_DEMOD
27 27
B4[+1.2V] +1.2V_DEMOD
28 28
F22_OUTPUT NC_9
29 29
SDA_DEMOD SDA_DEMOD
30 30
LNB LNB
31 31
GND GND_2
32 32
NC_10
33
B1 M_ERROR
B1 34
47 GND_3
35
M_SYNC
SHIELD 36
M_MCLK
37
+2.5V_DEMOD
38
M_VALID
39
M_DATA
40
S_ERROR
41
S_SYNC
42
S_MCLK
43
TU_M_CN
TU6704-*1
TDJM-C451D S_VALID
44
B1[+3.3V]
1
NC_1
2 S_RESET_DEMOD
NC_2
3 45
SCL_RF
4
SDA_RF
5 S_DATA
NC_3
6 46
NC_4
7
SIF
8
CVBS
9
NC_5
10
NC_6
11 A1 B1
ERROR
12 A1 B1
GROUND
13
MCLK
47
14
SYNC
15
VALID
16
DATA0
17
DATA1
18 SHIELD
DATA2
19
DATA3
20
DATA4
21
DATA5
22
DATA6
23
DATA7
24
RESET_DEMOD
25
B2[+3.3V]
26
SCL_DEMOD
27
B3[+1.2V]
28
NC_7
29
SDA_DEMOD
30
B1
B1
TU_SYMBOL_V_DVB
1
+3.3V_LNA_TU
2
RF_SWITCH_CTL_TU
3
IF_AGC_TU
4
I2C_SCL5_TU
5
I2C_SDA5_TU
6
IF_P_TU
7
IF_N_TU
8
TU_SIF_TU
9
TU_CVBS_TU
10
11
+3.3V_TU
12
FE_DEMOD1_TS_ERROR
13
14
FE_DEMOD1_TS_CLK_1
FE_DEMOD1_TS_SYNC_1
16
FE_DEMOD1_TS_VAL_1
17
FE_DEMOD1_TS_DATA0_1
18
FE_DEMOD1_TS_DATA[1]
19
FE_DEMOD1_TS_DATA[2]
20
FE_DEMOD1_TS_DATA[3]
21
FE_DEMOD1_TS_DATA[4]
22
FE_DEMOD1_TS_DATA[5]
23
FE_DEMOD1_TS_DATA[6]
24
FE_DEMOD1_TS_DATA[7]
25
/TU_RESET1_TU
26
+3.3V_DEMOD_TU
27
I2C_SCL2_TU
D_Demod_Core
LNB_TX
30
I2C_SDA2_TU
31
LNB_OUT
32
33
34
FE_DEMOD2_TS_ERROR
35
36
FE_DEMOD2_TS_SYNC
FE_DEMOD2_TS_CLK
+2.5V_DEMOD
FE_DEMOD2_TS_VAL
40
FE_DEMOD2_TS_DATA
41
FE_DEMOD3_TS_ERROR
42
FE_DEMOD3_TS_SYNC
43
FE_DEMOD3_TS_CLK
44
FE_DEMOD3_TS_VAL
45
/TU_RESET2_TU
46
FE_DEMOD3_TS_DATA
47
48
49
2014-08-11
67_01
LGE Internal Use Only