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A t t e n u a t i o n R e v ( 4 )
+3.3V_TUNER
FE_RESET
R1200
4.7K
845 OHM 1%
OPT
R1202
R1203
22
820
RF_ATTENUATION
OPT
OPT
FE_AGC_SPEED_CTL
OPT
OPT
(TUNER RESET GPIO OPTION)
C1200
C1203
BAP70-02
0 . 1 u F
2200pF
PIN Diode
D1201
50V
BAP70-02
TUNER RESET
OPT
A c t i v e H i g h
: ACTIVE LOW (SOFT RESET)
f o r A t t e n u a t i o n a t l e a s t 3 m A
NEED TO VERY CLOSE TO RF LINE
BECAUSE THIS POINT MAKE ATTENUATOR
6.8nH=>12 nH =>6.8nH
C1206
C1210
L1202
56pF
39pF
0603CS-6N8XGLW
6.8nH
5%
5%
D1200
RCLAMP0502B
C1209
120pF
5%
R e v ( 5 )
C 1 1 1
150pF->120pF
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.
UNER
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
+3.3V_TUNER
OPT
R1214
10
TU_RESET
10
R1212
C1282
0 . 1 u F
16V
16V
0 . 1 u F
C1227
16V
0 . 1 u F
C1228
+3.3V_TUNER
+1.8V_TUNER
C1214
0 . 1 u F
L 1 1 5
F o r A t t e n u a t i o n
C1213
1000pF
VDDA_1
GND_8
1
36
2%
IN1
SDA
2
35
GND_1
SCL
3
34
IN2
VDDD_2
4
33
IC1200
GND_2
EXTREF
5
32
L1204
C1212
0 . 1 u F
EXTCHOKE
XC5000
X1
6
31
820nH
GND_3
GND_7
2%
7
30
1008CS-821XGLC
VDDA_2
X2
8
29
C1216
0 . 1 u F
VDDA_3
ADDRSEL
9
28
C1217
0 . 1 u F
VDDC_1
DDI2
10
27
GND_4
VDDC_5
11
26
C1215
0 . 1 u F
VDDC_2
DDI1
12
25
+3.3V_TUNER
L1207
+1.8V_TUNER
LQH32MN2R2K23L 2.2uH
C1234
0 . 1 u F
C1233
0 . 1 u F
50V
R1216
680
L1206
MLF1608A2R7J
2.7uH
5%
P l a c e t h e B u f f e r c l o s e t o T u n e r
R1217
680
L1205
MLF1608A2R7J
C1235
2.7uH 5%
10pF
50V
DVB-CI DETECT
NL17SZ08DFT2G
FE_TS_VAL
1
FE_TS_ERR
2
3
+1.8V_TUNER
+5V_TUNER
R1224
100
FE_TUNER_SDA
R1225
100
FE_TUNER_SCL
C1238
C1242
15pF
C1244
C1245
0 . 1 u F
68pF
68pF
50V
50V
X1202
31.875MHz
X-TAL_1
GND_2
1
4
GND_1
X-TAL_2
C1243
2
3
FE_TS_SYNC
15pF
R e v ( 6 )
C1239
C 1 4 0 , 1 4 1
FE_TS_ERR
33pF=>13pF=>15pF=>18pF
FE_TS_SERIAL
0 . 1 u F
FE_TS_DATA_CLK
FE_TS_VAL
+1.8V_TUNER
C1237
0 . 1 u F
16V
R1218
1K
IF_AGC
+5V_TUNER
C1240
0 . 1 u F
R1219
16V
390
TUNER_SIF_IF_N
002:S16;010:AM11
FE_TS_DATA[0-7]
E
Q1204
ISA1530AC1
B
C1236
C
10pF
50V
+5V_TUNER
C1241
R1220
0 . 1 u F
390
16V
TUNER_CVBS_IF_P
E
Q1205
ISA1530AC1
B
C
+5V_GENERAL
+5V_TUNER
L1213
CIC21J501NE
C1281
C1280
C1279
0 . 1 u F
0 . 1 u F
22uF
16V
16V
16V
+3.3V_TUNER
IC1201
5
C1247
0 . 1 u F
16V
4
GND
FE_TS_VAL_ERR
R1241
47
C_+3.3V
+1.2V
I2S_WS
1
VDDL_1
2
VSSL_1
3
GPIO1
4
R1237
47
MSTRT
5
R1238
MERR
47
6
R1239
VSSH_1
47
7
DRX3913K-XK
VDDH_1
8
R1229
47
MCLK
9
R1240
47
MVAL
10
FE_TS_DATA[0]
R1230
47
MD0
11
FE_TS_DATA[1]
R1231
MD1
47
12
FE_TS_DATA[2]
MD2
R1232
47
13
FE_TS_DATA[3]
R1233
MD3
47
14
VSSL_2
15
VDDL_2
16
FE_TS_DATA[4]
R1234
47
FE_TS_DATA[5]
R1235
47
FE_TS_DATA[6]
R1236
47
FE_TS_DATA[7]
R1228
47
+5V_TUNER
+1.2V
C1250
C1251
C1248
100uF
100uF
0 . 1 u F
16V
50V
16V
D_3.3V
C1254
C1256
R e v ( 9 )
15pF
15pF
C 1 5 2 , 1 5 5
50V
50V
18pF=>13pF=>15pF
X1201
20.25MHz
A_1.2V
A_3.3V
C_+3.3V
48
PDN
C1259
0 . 1 u F
PDP
C1260
0 . 1 u F
47
46
VDDAL_AFE2
VSSAL_AFE2
45
44
SIF
IC1203
CVBS
43
42
VDDAH_CVBS
VSSAH_CVBS
41
TUNER_CVBS_IF_P
40
INP
INN
39
38
VSSAH_AFE1
TUNER_SIF_IF_N
VDDAH_AFE1
37
VDDAL_AFE1
36
R1249
6.8K
VSSAL_AFE1
35
IF_AGC
34
IF_AGC
RF_AGC
33
C1264
0 . 0 2 7 u F
C_+3.3V
R1248
FE_RESET
100
R1245
100
50V
50V
10pF
10pF
C1252
C1255
+1.2V
A_1.2V
L1211
CIC21J501NE
C1265
C1262
R e v ( 5 )
0 . 1 u F
C1274
10uF
C160 MLCC
16V
0 . 1 u F
16V
16V
+3.3V_TUNER
A_3.3V
L1212
CIC21J501NE
16V
16V
16V
16V
16V
0 . 1 u F
0 . 1 u F
0 . 1 u F
0 . 1 u F
0 . 1 u F
C1267
C1272
C1275
C1278
C1263
+3.3V_TUNER
C_+3.3V
+3.3V_TUNER
D_3.3V
L1209
L1210
CIC21J501NE
CIC21J501NE
C1253
C1258
C1273
0 . 1 u F
0 . 1 u F
0 . 1 u F
16V
16V
16V
EAX60890801
2 0 0 9 . 0 4 . 1 6
TUNER
1 2
LGE Internal Use Only
1 2
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