LG 40LX770H Service Manual page 45

DATA Digital Demodulator_LGDT3305 (USA)
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright 2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
(For Pro:Centric DATA Channel)
+1.2V_3305
+1.23V_TU
L8203
BLM18PG121SN1D
C8224 C8226
0.1uF 0.1uF
+3.3V_TU
+3.3V_3305
L8202
BLM18PG121SN1D
C8223 C8225
C8227
0.1uF 0.1uF 10uF
10V
Near to IC8200
C8204
SUB_NDIF
C8205
SUB_PDIF
R8205
R8206
R8204
3305_IF_AGC
1K
C8206
0.01uF
Xtal_matching Xtal_matching
50V
50V
33pF 33pF
C8213-*1
C8214-*1
R8216
47K
Xtal_Old
OPT
C8213 C8214
Xtal_Old
30pF 30pF
50V
50V
X8200 OPT
25MHz
R8213
1M
+3.3V_3305
L8200
+1.2V_3305 BLM18PG121SN1D
C8211
0.22uF
NC_1 PLLAVSS
1 36
0.01uF
VINA2 PLLAVDD
2 35
THERMAL
VINA1 VSS33_2
3 34
0.01uF 49
C8208 0.1uF INCAP VSS_2
4 33
IC8200
VSSAAD10A VDD_2 C8217
5 32
R8209
I2CSEL LGDT3305 VSS_1
1K 6 31
R8211 ANTCON SCL
7 30
100
OPT
OPT C8209 0.1uF VDD_1 VDD33_2 C8218
1K 8 29
I2CRPT_SCL SDA
9 28
100
I2CRPT_SDA NIRQ
OPT
10 27
IFOUT TPSOP
11 26
RFOUT TPCLK
12
R8207 25
100
C8207
1000pF
50V
+3.3V_3305
470
R8208
LD8200
MIN 1ms
MIN 1ms
VDD3.3V
MIN 1ms MIN 10ms
VDD1.0V
nRST
input; Digital IO
caution : Demodulator Power Sequence
+3.3V_3305
D8200
1N4148W
OPT
/LGDT3305_RESET
R8217
C8219
1uF
10V
+3.3V_3305
C8216
0.1uF
C8220 0.1uF
0.1uF
100 R8218
I2C_SCL3
0.1uF
100 R8219
I2C_SDA3
demod to Main SoC
AR8200
TS_S_IN_1_SYNC
TS_S_IN_1_CLK
TS_S_IN_1_DATA
TS_S_IN_1_VAL
22
close to IC(LGDT3305)
LX770H
DATA Demod
2014.11.15
17 24
LGE Internal Use Only