LG 32LH2000 Service Manual page 24

TU1200
TDFW-G235D
ANT[5V]
1
BB[CTR]
2
GND_1
3
+B[5V]
4
NC_1
5
RF_AGC
6
TP[VT]
7
NC_2
8
GND_2
9
SDA_T
10
SCL_T
11
AIF_1
12
NC_3
13
GND
14
VIDEO
R1205 0
15
NC_4
16
SIF C1216
TUNER
17
SDA 100pF 50V
18
SCL
19
RST
20
3.3V
C1214
21
0.1uF
1.2V
16V
22
ERR
23 C1215
0.1uF
MCL R1210 47
16V
24
D7 R1211 47
25
D6 R1212 47
26
D5 R1213 47
27
D4 R1214 47
28
D3 R1215 47
29
D2 R1216 47
30
D1 R1217 47
31
D0 R1218 47
32
VAL R1219 47
33
SYNC R1220 47
34
35
SHIELD
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
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
+5V_GENERAL
L1201
MLB-201209-0120P-N2
C1207 C1208
C1209
100pF 0.1uF
68uF
50V 16V
10V
OPT
R1207 47
FE_TUNER_SDA
C1205
47pF
50V
OPT
R1208 47
FE_TUNER_SCL
C1206
47pF
50V
OPT
R1221
33
FE_DEMOD_SDA
FE_DEMOD_SCL
R1222
C1218
C1217 33
47pF
47pF
50V
50V
+3.3V_TUNER
FE_TS_CLK
R1225
FE_TS_DATA[7]
R1224 100K
100
FE_TS_DATA[6]
C1219
FE_TS_DATA[5] 0.1uF
16V
FE_TS_DATA[4]
FE_TS_DATA[3]
FE_TS_DATA[2]
FE_TS_DATA[1]
FE_TS_DATA[0]
FE_TS_VAL
FE_TS_SYN
FE_TS_DATA[0-7],FE_TS_CLK,FE_TS_VAL,FE_TS_SYN
R1223 0
FE_TS_ERR
C1212
47uF
C1210
16V
0.1uF
16V
C
R1209
Q1200 B 10K
2SC3052
E
+5V_GENERAL
R1227
470 R1228
82
E
B
ISA1530AC1
R1226 Q1201
C
4.7K
/FE_RESET
FE_TS_VAL
DVB-CI DETECT
L1202
+3.3V_TUNER
MLB-201209-0120P-N2
C1221
0.1uF
16V
+1.2V_TUNER FE_TS_VAL
FE_TS_ERR
C1220
0.1uF
16V
+5V_GENERAL
C1222
0.01uF
25V
OPTION : RF AGC
FE_AGC_SPEED_CTL
0
R1238
R1239
1K
OPT
FE_SIF
+3.3V_TUNER
IC1201
NL17SZ08DFT2G
1 5
2 C1227
0.1uF
3 4 16V
GND
EAX60686904
TUNER
L1204
MLB-201209-0120P-N2
R1229
10
R1231
10K
Q1202
ISA1530AC1
E
R1230
2.2K
B
C
R1232
C
10K
Q1203 B
FE_BOOSTER_CTL
2SC3052
E
+5V_GENERAL
R1240 R1241
200 200
FE_VMAIN
E
B Q1205
ISA1530AC1
C
R1245
FE_TS_VAL_ERR
47
2009.03.25
10 11
LGE Internal Use Only