Read LG 32LH70 (CHASSIS:LA92D) Service Manual online
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.
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.
FE_TS_DATA[0]
+1.8V_TU
C116
0.1uF
16V
L101
0603CS-R27XGLW
270nH
IF_AGC
C124
0.1uF
16V
R100
820
820
1/8W
1%
1%
+3.3V_TU
+1.8V_TU
C121
0.1uF
16V
L106
1008CS-821XGLC
C131
0.1uF
16V
C114
0.1uF
16V
C145
0.1uF
16V
R127
100
R126
100
C120
0.1uF
16V
C130
0.1uF
16V
0.1uF
16V
C136
0.1uF
16V
0.1uF
16V
+3.3V_TU
C112
0.1uF
16V
C127
0.1uF
16V
+3.3V_TU
C117
0.1uF
16V
C113
1000pF
50V
+1.8V_TU
R116
10
1/10W
5%
C126
0.1uF
16V
C152
47pF
50V
47pF
50V
OPT
C118
1000pF
50V
TUNER_SIF_IF_N
1:C9
C101
56pF
50V
C104
39pF
50V
R123
4.7K
4.7K
+3.3V_TU
C100
0.1uF
0.1uF
16V
C134
0.1uF
16V
0.1uF
16V
C140
0.1uF
16V
0.1uF
16V
R111
1K
1K
1/16W
5%
5%
C151
47pF
50V
47pF
50V
OPT
TUNER_CVBS_IF_P
L105
0603CS-R39XGLW
390nH
IC100
XC5000
1
VDDA_1
2
IN1
3
GND_1
4
IN2
5
GND_2
6
EXTCHOKE
7
GND_3
8
VDDA_2
9
VDDA_3
10
VDDC_1
11
GND_4
12
VDDC_2
13
VDDC_3
14
VDDA_4
15
VAGC
16
VIF
17
VDDA_5
18
SIF
19
GND_5
20
VDDC_4
21
VDDA_6
22
GND_6
23
VDDD_1
24
TESTMODE
25
DDI1
26
VDDC_5
27
DDI2
28
ADDRSEL
29
X2
30
GND_7
31
X1
32
EXTREF
33
VDDD_2
34
SCL
35
SDA
36
GND_8
37
RESET
38
VI2C
39
VDDC_6
40
VREF_N
41
VREF_P
42
VDDC_7
43
VDDC_8
44
REXT
45
VDDA_7
46
GND_9
47
VDDC_9
48
VDDA_8
C125
0.1uF
16V
Control_Atten
004:D6
C115
0.1uF
16V
C128
0.1uF
16V
C141
0.1uF
16V
C105
0.1uF
0.1uF
16V
+3.3V_TU
R101
24
24
1/8W
5%
5%
R110
4.99K
1/10W
1%
R122
4.7K
4.7K
C103
120pF
50V
120pF
50V
+1.8V_TU
R
1
0
6
3
9
0
R103
680
680
IF_N
004:D6
FE_SIF
004:D6
R
1
0
4
3
9
0
C106
10pF
50V
10pF
50V
TU_CVBS_IN
R107
0
Q102
ISA1530AC1
E
B
C
TUNER_SIF_IF_N
004:D6
C108
0.1uF
16V
0.1uF
16V
R109
390
Q101
ISA1530AC1
E
B
C
TUNER_CVBS_IF_P
004:D6
C107
10pF
50V
10pF
50V
Q100
ISA1530AC1
E
B
C
C110
0.1uF
16V
0.1uF
16V
R108
390
C109
0.1uF
16V
0.1uF
16V
C111
0.1uF
16V
0.1uF
16V
IF_P
Q103
ISA1530AC1
E
B
C
R102
680
680
L117
500
C196
0.1uF
50V
C195
0.1uF
50V
C180
0.1uF
50V
0.1uF
50V
C194
0.1uF
50V
L113
500
C190
10uF
16V
3216
+3.3V_AVDD_PVSB
C177
10uF
16V
3216
+3.3V_DVDD_PVSB
+1.2V_DVDD_PVSB
C168
10uF
16V
16V
3216
R137
0
1/4W
5%
5%
+1.2V_PVSB
C170
0.1uF
0.1uF
50V
C172
0.1uF
50V
0.1uF
50V
C142
0.01uF
FE_TS_CLK
C154
1uF
10V
10V
AR102
100
1/16W
100
1/16W
R121
OPT
FE_TS_VALID
C155
OPT
+3.3V_DVDD_PVSB
VSB_RESET
R125
470
PV
AR100
100
R115
1K
IF_N
JP100
C135
0.1uF
0.1uF
C153
27pF
27pF
R120
OPT
IF_AGC
+3.3V_AVDD_PVSB
R130
1M
FE_TS_SYNC
FE_TS_CLK
C150
27pF
JP103
+3.3V_DVDD_PVSB
R133
OPT
OPT
R132
47K
R134
OPT
+1.2V_DVDD_PVSB
R114 100
FE_DEMOD_SCL
AR101
100
C156
OPT
OPT
R118
100
FE_TS_SYNC
IF_P
C143
0.01uF
R113 100
R119
0
OPT
+3.3V_AVDD_PVSB
R131
0
OPT
D101
1N4148W
R124
5.1K
OPT
R136
22
R135
22
LD100
PV
PV
FE_DEMOD_SDA
C138
0.1uF
FE_TS_VALID
JP101
JP102
C189
100uF
16V
16V
C164
0.1uF
16V
0.1uF
16V
C191
100uF
16V
16V
L114
BLM18PG121SN1D
GND
C169
0.1uF
0.1uF
16V
C181
0.1uF
16V
0.1uF
16V
C175
100uF
16V
100uF
16V
C184
0.1uF
16V
0.1uF
16V
C179
100uF
16V
16V
IC106
AP1117E18G-13
2
OUT
3
IN
1
ADJ/GND
C187
4.7uF
10V
4.7uF
10V
OPT
+3.3V
C178
0.1uF
16V
0.1uF
16V
C186
0.1uF
50V
0.1uF
50V
R145
20K
R146
10K
IC104
SC4215ISTRT
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
C183
100uF
100uF
16V
+1.2V_PVSB
L111
500
500
C185
10uF
16V
3216
C193
0.1uF
50V
0.1uF
50V
L116
500
+3.3V_TU
+5V_TUNER
+5V_TUNER
+5V_TUNER
+5V_TUNER
+1.8V_TU
C102
2200pF
50V
2200pF
50V
TUNER_RESET
R105
0
FE_TUNER_SCL
FE_TUNER_SDA
FE_TS_DATA[4]
FE_TS_DATA[2]
FE_TS_DATA[5]
FE_TS_DATA[1]
FE_TS_DATA[6]
FE_TS_DATA[0]
FE_TS_DATA[7]
FE_TS_DATA[3]
X
1
0
0
3
1
.
8
7
5
M
H
z
L102
MLF1608A2R7J
2.7uH
L103
MLF1608A2R7J
2.7uH
C119
0.1uF
16V
C123
0.1uF
16V
C132
0.1uF
16V
0.1uF
16V
C139
0.1uF
16V
R148
15K
L118
MLB-201209-0120P-N2
C199
0.1uF
50V
0.1uF
50V
C159
0.1uF
50V
0.1uF
50V
C157
100uF
100uF
16V
R147
1K
1K
OPT
R149
8.2K
C198
100uF
100uF
16V
IC107
SC156515M-1.8TR
2
VIN
1
EN
3
GND
5
ADJ
4
VO
C197
4.7uF
10V
4.7uF
10V
+3.3V_PVSB
+3.3V_PVSB
+3.3V_PVSB
+3.3V_PVSB
C158
10uF
16V
3216
C160
100uF
100uF
16V
L119
500
+3.3V_TU
+5V
+5V_GENERAL
C129
0.1uF
16V
+5V_TUNER
R443
2.7K
C122
0.1uF
16V
X101
25MHz
L120
500
C182
0.1uF
0.1uF
50V
C148
18pF
50V
18pF
50V
C149
18pF
50V
18pF
50V
C1000
1uF
10V
10V
R138
20K
20K
D102
RCLAMP0502B
RCLAMP0502B
IC101
LGDT3305
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
C167
2.2uF
16V
C165
2.2uF
16V
C146
18pF
50V
C
1
4
7
1
8
p
F
5
0
V
L107
LQH32MN2R2K23L
L104
0603CS-12NXGLW
12nH
D
1
0
0
5
0
V
B
A
P
7
0
-
0
2
JK100
KCN-BT-0-0082
1
2
BAP70-02
845 OHM 1%
VSB +3.3V B+ BLOCK
VSB +1.0V B+ BLOCK
VDD33
I2CRPT_SCL
VDD33
VROA
TPERR
TPDATA[6]
SDA
SLIM_SCAN
XM
TPDATA[5]
VINA1
JTAG
VSS
OPM
VSS33
XTALO
I2CSEL
TPVALID
TPDATA[4]
VDD33
VDD
TPDATA[1]
NRST
XTALI
VCCAAD10A
VINA2
TPDATA[0]
TPDATA[7]
PLLAVDD
VSSAD10
RF OUT
VSS33
TPDATA[2]
PLLAVSS
VDD
VDD
VSSAAD10A
VSS
TPSOP
IF OUT
TPDATA[3]
INCAP
VSS
I2CRPT_SDA
SCL
ANTCON
VSS33
TPCLK
NIRQ
V0 = 0.8(R1+R2) / R2
R1
R2
BCM(VENUS)
HA JAE MIN
Tuner
08.11.5
1 3
Active Low
20ms
I2C Address : C2
Analog Supply Max Current(+3.3V/Operating ) : 250mA
(+1.8V/Operating ) : 75mA
Digital Supply Max Current ( +1.8V/Operating ) : 75mA
(+1.8V/Operating ) : 75mA
Digital Supply Max Current ( +1.8V/Operating ) : 75mA
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