Read LG 47LH9000 (CHASSIS:LD91I) 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.
0 . 0 1 u F
25V
25V
C1222
0
R1223
FE_DEMOD_SDA
FE_TS_ERR
ISA1530AC1
Q1202
E
B
C
82
R1228
FE_VMAIN
ISA1530AC1
Q1205
E
B
C
68uF
10V
10V
C1209
FE_SIF
ISA1530AC1
Q1201
E
B
C
47
R1245
0 . 1 u F
16V
16V
C1215
470
R1227
47pF
50V
50V
C1217
+5V_GENERAL
0 . 1 u F
16V
C1220
NL17SZ08DFT2G
IC1201
3
2
4
1
5
47pF
50V
50V
C1206
OPT
47pF
50V
50V
C1205
OPT
4.7K
R1226
47
R1213
47
R1215
+5V_GENERAL
47
R1207
33
R1222
47
R1214
FE_TS_VAL
33
R1221
47
R1212
2.2K
R1230
GND
10K
R1231
10K
R1232
FE_TUNER_SCL
10K
R1209
OPT
100pF
50V
C1216
47
R1208
FE_TS_VAL_ERR
+3.3V_TUNER
100K
R1225
47
R1217
TDFW-G235D
TUNER
TU1200
1
ANT[5V]
2
BB[CTR]
3
GND_1
4
+B[5V]
5
NC_1
6
RF_AGC
7
TP[VT]
8
NC_2
9
GND_2
10
SDA_T
11
SCL_T
12
AIF_1
13
NC_3
14
GND
15
VIDEO
16
NC_4
17
S I F
18
SDA
19
SCL
20
RST
21
3.3V
22
1.2V
23
ERR
24
MCL
25
D7
26
D6
27
D5
28
D4
29
D3
30
D2
31
D1
35
SHIELD
32
D0
33
VAL
34
SYNC
FE_TS_VAL
0
R1205
100
R1224
+3.3V_TUNER
200
R1241
10
R1229
FE_DEMOD_SCL
47uF
16V
16V
C1212
OPT
1K
OPT
R1239
MLB-201209-0120P-N2
L1204
+5V_GENERAL
FE_TS_ERR
200
R1240
0 . 1 u F
16V
C1221
0
R1238
FE_RESET
47
R1218
FE_BOOSTER_CTL
2SC3052
Q1203
E
B
C
0.1uF
16V
C1200
47pF
50V
50V
C1218
MLB-201209-0120P-N2
L1201
47
R1216
MLB-201209-0120P-N2
L1202
100pF
50V
50V
C1207
47
R1219
FE_AGC_SPEED_CTL
0 . 1 u F
16V
C1227
+3.3V_TUNER
47
R1211
47
R1210
0 . 1 u F
16V
C1219
0 . 1 u F
16V
16V
C1214
47
R1220
0 . 1 u F
16V
16V
C1210
OPT
+5V_GENERAL
0 . 1 u F
16V
16V
C1208
OPT
2SC3052
Q1200
OPT
E
B
C
+1.2V_TUNER
FE_TUNER_SDA
FE_TS_CLK,FE_TS_DATA[0-7],FE_TS_SYNC,FE_TS_VAL
FE_TS_DATA[7]
FE_TS_DATA[5]
FE_TS_CLK
FE_TS_DATA[1]
FE_TS_DATA[3]
FE_TS_DATA[6]
FE_TS_DATA[2]
FE_TS_VAL
FE_TS_DATA[4]
FE_TS_DATA[0]
FE_TS_SYNC
1 2 1 3
TUNER
EAX61052801
2 0 0 9 . 0 2 . 2 3
DVB-CI DETECT
DVB-T : 1.8V(INTEL demod)
Digital Tuner : 0x1E
USE ONLY FOR SECAM
OPTION : RF AGC
DVB-T/C : 1.2V(MICRONAS demod)
Tuner PLL : 0xC2
Analog Tuner : 0x86
_TUNER
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