Tuner reset – LG 42SL8000 Manuale d'uso
Pagina 150
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
FE_TS_DATA[7]
FE_TS_DATA[5]
FE_TS_DATA[6]
FE_TS_DATA[1]
FE_TS_DATA[2]
FE_TS_DATA[4]
FE_TS_DATA[3]
FE_TS_DATA[0]
C1239
0.1uF
C1240
0.1uF
16V
IF_AGC
R1225
100
FE_TS_ERR
C1216
0.1uF
R1240
47
C1213 1000pF
R1214
10
OPT
A_3.3V
C1206
56pF
5%
R1203
820
OPT
+3.3V_TUNER
C1200
0.1uF
OPT
L1202
0603CS-6N8XGLW
6.8nH
2%
R1233
47
+1.8V_TUNER
RF_ATTENUATION
C1278
0.1uF
16V
+3.3V_TUNER
C1261
0.1uF
16V
C1249
0.1uF
50V
IC1202
AZ1117H-1.2TRE1
ADJ/GND
OUT
IN
C1266
0.1uF
16V
+1.2V
FE_DEMOD_SCL
L1205
MLF1608A2R7J
2.7uH
5%
FE_TS_SERIAL
C1217
0.1uF
FE_TS_VAL
R1235
47
C1210
39pF
5%
C1274
0.1uF
16V
R1216
680
TUNER_SIF_IF_N
002:S16;010:AM11
D1201
50V
BAP70-02
OPT
R1230
47
C
1
2
2
2
0
.
1
u
F
D_3.3V
C_+3.3V
TU_RESET
FE_TS_DATA_CLK
C1276
0.1uF
16V
FE_AGC_SPEED_CTL
FE_TS_VAL_ERR
C1264
0.027uF
FE_TS_DATA[0-7]
+5V_TUNER
C1218
0.1uF
16V
C1201
0.1uF
OPT
R1246
100
+5V_TUNER
L1211
CIC21J501NE
R1248
100
FE_RESET
TUNER_SIF_IF_N
FE_TS_VAL
C1256
15pF
50V
+1.8V_TUNER
L1201
0603CS-R27XGLW
270nH
2%
R1239
47
+5V_TUNER
C
1
2
1
9
1
0
0
0
p
F
+1.8V_TUNER
FE_TUNER_SCL
FE_TS_SYNC
A_1.2V
C1241
0.1uF
16V
L1209
CIC21J501NE
R1201
0
OPT
R1224
100
C1268
1000pF
50V
C1231
0.1uF
R1247
4.7K
C1257
0.1uF
16V
TUNER_CVBS_IF_P
R1234
47
C1233
0.1uF
50V
R1232
47
C1275
0.1uF
16V
R1228
47
C
1
2
2
3
0
.
1
u
F
+3.3V_TUNER
C1214
0.1uF
C1263
0.1uF
16V
C1236
50V
10pF
D1200
RCLAMP0502B
C1237
0.1uF
16V
C1238
0.1uF
C1267
0.1uF
16V
C1269
1000pF
50V
C1270
0.1uF
16V
JK1200
KCN-ET-0-0094
1
2
C1271
0.1uF
16V
+3.3V_TUNER
L1203
0603CS-R39XGLW
390nH
2%
+1.2V
R1220
390
R1212
10
C1255
10pF
50V
C
1
2
3
2
0
.
1
u
F
X1201
20.25MHz
C
1
2
2
1
0
.
1
u
F
+1.2V
+3.3V_TUNER
C1254
15pF
50V
C1273
0.1uF
16V
Q1205
ISA1530AC1
E
B
C
D_3.3V
R1242
4.7K
FE_RESET
FE_TS_ERR
IF_AGC
R1215
4.99K
1%
C1247
0.1uF
16V
C1228
0.1uF
16V
R1249
6.8K
R1221
0
+1.8V_TUNER
+5V_TUNER
GND
FE_TUNER_SDA
L1210
CIC21J501NE
C1215
0.1uF
C1212
0.1uF
FE_DEMOD_SDA
C_+3.3V
Q1204
ISA1530AC1
E
B
C
R1237
47
C1250
100uF
16V
L1204
1008CS-821XGLC
2%
820nH
C1251
0.1uF
50V
C1234
0.1uF
C
1
2
2
0
0
.
1
u
F
R12004.7K
OPT
C1272
0.1uF
16V
R1241
47
C1227
0.1uF
16V
TU_RESET
R1236
47
C1258
0.1uF
16V
TUNER_CVBS_IF_P
C1209
120pF
5%
IC1200
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
R1218
1K
A_3.3V
C
1
2
2
4
0
.
1
u
F
C1277
0.1uF
16V
+3.3V_TUNER
C
1
2
3
0
0
.
1
u
F
R1231
47
C_+3.3V
R1217
680
L1212
CIC21J501NE
L1206
MLF1608A2R7J
2.7uH
5%
L1207
LQH32MN2R2K23L 2.2uH
+3.3V_TUNER
C
1
2
2
9
0
.
1
u
F
C_+3.3V
R1229
47
C1253
0.1uF
16V
C1265
0.1uF
16V
R1219
390
C1260
0.1uF
C
1
2
2
6
0
.
1
u
F
C
1
2
2
5
0
.
1
u
F
C1211
OPT
6.8pF
IC1201
NL17SZ08DFT2G
3
2
4
1
5
C1252
10pF
50V
C1248
100uF
16V
C1262
10uF
16V
L1208
CIC21J501NE
R1238
47
A_1.2V
C1259
0.1uF
C1203
2200pF
OPT
+3.3V_TUNER
IC1203
DRX3913K-XK
1
I2S_WS
2
VDDL_1
3
VSSL_1
4
GPIO1
5
MSTRT
6
MERR
7
VSSH_1
8
VDDH_1
9
MCLK
10
MVAL
11
MD0
12
MD1
13
MD2
14
MD3
15
VSSL_2
16
VDDL_2
17
VSSH_2
18
VDDH_2
19
MD4
20
MD5
21
MD6
22
MD7
23
I2C_SCL1
24
I2C_SDA1
25
VSSH_3
26
VDDH_3
27
VDDL_3
28
VSSL_3
29
VSYNC
30
GPIO2
31
SAW_SW
32
RSTN
33
RF_AGC
34
IF_AGC
35
VSSAL_AFE1
36
VDDAL_AFE1
37
VDDAH_AFE1
38
VSSAH_AFE1
39
INN
40
INP
41
VSSAH_CVBS
42
VDDAH_CVBS
43
CVBS
44
SIF
45
VSSAL_AFE2
46
VDDAL_AFE2
47
PDP
48
PDN
49
XI
50
XO
51
VSSAH_OSC
52
VDDAH_OSC
53
VDDH_4
54
VSSH_4
55
VSSL_4
56
VDDL_4
57
TDO
58
TMS
59
TCK
60
TDI
61
I2C_SDA2
62
I2C_SCL2
63
I2S_CL
64
I2S_DA
R1245
100
R1202
22
OPT
X1202
31.875MHz
4
GND_2
1
X-TAL_1
2
GND_1
3
X-TAL_2
+5V_TUNER
+5V_GENERAL
L1213
CIC21J501NE
C1280
0.1uF
16V
C1281
0.1uF
16V
C1235
50V
10pF
C1282
0.1uF
16V
C1242
15pF
C1243
15pF
C1244
68pF
50V
C1245
68pF
50V
C1279
22uF
16V
12 12
TUNER
EAX60890803
Rev(5)
C111
150pF->120pF
Rev(6)
C140,141
33pF=>13pF=>15pF=>18pF
Rev(9)
C152,155
18pF=>13pF=>15pF
TUNER RESET
BECAUSE THIS POINT MAKE ATTENUATOR
(TUNER RESET GPIO OPTION)
DVB-CI DETECT
: ACTIVE LOW (SOFT RESET)
Place the Buffer close to Tuner
L115
6.8nH=>12 nH =>6.8nH
For Attenuation
BAP70-02
PIN Diode
845 OHM 1%
Active High
for Attenuation at least 3mA
NEED TO VERY CLOSE TO RF LINE
Rev(5)
C160 MLCC
Attenuation Rev(4)
2009.06.10
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only