Read LG 37LT770H (CHASSIS:LA2FF) Service Manual online
THERMAL
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.
C8221
22pF
TS_S_IN_1_VAL
+3.3V_3305
+1.2V_3305
C8208
0.1uF
C8226
0.1uF
0.1uF
C8210
0.1uF
R8219
100
C8222
22pF
C8223
0.1uF
0.1uF
C8217
0.1uF
L8200
BLM18PG121SN1D
L8202
BLM18PG121SN1D
C8225
0.1uF
0.1uF
R8218
100
C8209
0.1uF
C8216
0.1uF
+3.3V_3305
C8220
0.1uF
R8209
1K
+3.3V_3305
SUB_PDIF
89:I23
R8204
1K
C8215
0.1uF
/LGDT3305_RESET
SUB_NDIF
89:I23
TS_S_IN_1_DATA
AR8200
22
C8213
30pF
50V
30pF
50V
Xtal_Old
L8203
BLM18PG121SN1D
C8227
10uF
10V
TS_S_IN_1_SYNC
R8212
100
R8215
22
C8218
0.1uF
C8224
0.1uF
0.1uF
TS_S_IN_1_CLK
C8214
30pF
50V
30pF
50V
Xtal_Old
R8213
1M
1M
X8200
25MHz
25MHz
L8201
BLM18PG121SN1D
R8214
1K
C8212
0.1uF
+1.2V_3305
+3.3V_TU
+3.3V_3305
D8200
1N4148W
C8219
1uF
10V
10V
R8216
47K
R8211
1K
OPT
I2C_SCL4_blan
I2C_SDA4_blan
R8205
100
OPT
R8206
100
OPT
LD8200
+3.3V_3305
C8211
0.22uF
0.22uF
R8208
470
R8217
OPT
R8207
100
3305_IF_AGC
C8206
0.01uF
IC8200
LGDT3305
1
NC_1
2
VINA2
3
VINA1
4
INCAP
5
VSSAAD10A
6
I2CSEL
7
ANTCON
8
VDD_1
9
I2CRPT_SCL
10
I2CRPT_SDA
11
IFOUT
12
RFOUT
13
TPERR
14
VDD33_1
15
TPVALID
16
TPDATA[0]
17
VSS33_1
18
TPDATA[1]
19
TPDATA[2]
20
TPDATA[3]
21
TPDATA[4]
22
TPDATA[5]
23
TPDATA[6]
24
TPDATA[7]
25
TPCLK
26
TPSOP
27
NIRQ
28
SDA
29
VDD33_2
30
SCL
31
VSS_1
32
VDD_2
33
VSS_2
34
VSS33_2
35
PLLAVDD
36
PLLAVSS
37
NRST
38
OPM
39
VDD33_3
40
NC_2
41
VSS33_3
42
XTALI
43
XTALO
44
VSS_3
45
XM
46
VDD_3
47
VSSDAD10
48
VCCAAD10A
49
[EP]GND
C8207
1000pF
50V
1000pF
50V
+1.23V_TU
I2C_SCL4
I2C_SDA4
C8204
0.01uF
C8205
0.01uF
R8201
0
R8202
0
C8213-*1
33pF
50V
Xtal_matching
C8214-*1
33pF
50V
Xtal_matching
ATSC Digital Demodulator_LGDT3305 (USA)
demod to Main SoC
close to IC(LGDT3305)
(for pro:centric DATA channel)
caution : Demodulator Power Sequence
MIN 10ms
VDD1.0V
MIN 1ms
nRST
input; Digital IO
VDD3.3V
MIN 1ms
MIN 1ms
xxLT760H-UA
ATSC demod
2011.02.09
82
Near to IC8200
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