LG 32LH250H Service Manual page 29
Chassis : la96c
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Also See for 32LH250H:
- Setup manual (46 pages) ,
- Owner's manual (40 pages) ,
- Specifications (4 pages)
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TUNER
TU1001
TDVW-H104P
NC_1
1
NC_2
2
GND_1
3
+B1[5V]
4
RF_AGC
5
GND_2
6
DATA
7
CLOCK
8
AS
9
D I F [ + ]
10
D I F [ - ]
11
IF_AGC
12
SIF
13
NC_3
14
AUDIF
15
VIDEO
16
17
SHIELD
TUNER 5V
PANEL_POWER
L1012
IC1003
AS7809DTRE1
INPUT
1
2
C1082
100uF
16V
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
+5V_TU
L1003
500
C1007
C1005
C1011
C1013
C2250
C1008
0 . 1 u F
0 . 1 u F
10uF
220uF
220uF
0 . 0 1 u F
50V
50V
10V
16V
16V
25V
+5V_TU
R1013
4.7K
OPT
C1027
100pF
50V
R1023
22
R1022
22
OPT
C1017
OPT
C1015
C1024
C1025
R1031
0
100pF
100pF
27pF
27pF
50V
50V
OPT
50V
50V
IF_AGC
6.8uH
R1009
R1003
OPT
0
0
50V
OPT
SIFMO
R1016
47
OPT
OPT
M S t a r O p t i o n
R1005
R1018
0
0
OPT
R1006
10K
OPT
50V
VCOMO
M S t a r O p t i o n
IC1002
KIA78R05F
1
2
3
4
5
+5V_TU
L1010
OUTPUT
BG2012B800
3
OPT
C1036
C1037
C1040
C1041
GND
C1039
0 . 3 3 u F
0 . 1 u F
47uF
0 . 1 u F
0 . 0 1 u F
16V
16V
16V
16V
25V
( I 2 C C h a n n e l 6 )
R1026
0
FE_TUNER_SDA
R1027
0
FE_TUNER_SCL
0
L1013
1/10W
5%
R1032
0
C1006
R1033
0
L1002
47pF
270nH
0
L1014
+5V_TU
1/10W
5%
FE_SIF
+5V_TU
R1021
FE_VMAIN
0
008:D24
F M R e j e c t i o n O p t i o n
C1004
82pF
50V
T h e v a l u e o f c o i l & c a p ' c o u l d b e c h a n g e d t o o p t i m i z e d e a c h
LGDT3305
C l o s e t o t u n e r
+3.3V_DVDD_PVSB
IF_N
C1069
R1061
100
0 . 0 1 u F
IF_P
IF_P
0 . 0 1 u F
C1070
IF_N
R1062
100
0 . 1 u FC1068
R1064
SIGN273
IF_AGC
1K
R1060
R1063
1K
C1066
C1067
0 . 1 u F
0 . 1 u F
TS_0
TS_1
TS_2
TS_3
TS_4
TS_5
TS_6
TS_7
M e r c u r y O p t i o n
+5V_GENERAL
OPT
+3.3V_PVSB
+3.3V_FE
IC1001
SC156515M-1.8TR
VIN
VO
2
4
OPT
R1014
R1002
OPT
15K
EN
ADJ
1K
1
5
R1015
OPT
8.2K
3
C1002
C1003
C1018
C1020
100uF
0 . 1 u F
GND
100uF
0 . 1 u F
16V
50V
16V
50V
OPT
OPT
IC1000
SC4215ISTRT
R1035
+1.2V_PVSB
100
NC_1
GND
1
8
R2
R1036
EN
ADJ
20K
2
7
C1076
R1
1uF
VIN
VO
16V
3
6
V 0 = 0 . 8 ( R 1 + R 2 ) / R 2
C1019
NC_2
NC_3
C1077
C1078
4
5
100uF
2 . 2 u F
2 . 2 u F
16V
25V
25V
+3.3V_AVDD_PVSB
1N4148W
R1074
D1000
47K
C1071
C1072
27pF
X1005
27pF
R1075
C1073
VSB_RESET
1uF
OPT
25MHz
10V
R1072
1M
+3.3V_AVDD_PVSB
+1.2V_DVDD_PVSB
L1219
CB3216PA501E
C2138
0 . 1 u F
50V
R1068
5.1K
OPT
1
36
VROA
PLLAVSS
35
2
VINA2
PLLAVDD
3
34
VSS33
VINA1
33
4
INCAP
IC1004
VSS
5
32
VSSAAD10A
VDD
100
LGDT3305
31
6
I2CSEL
VSS
22 R1077
OPT
0
7
30
R1065
ANTCON
SCL
8
29
FE_DEMOD_SCL
VDD
VDD33
22 R1078
9
28
R1066
OPT
I2CRPT_SCL
SDA
10
27
FE_DEMOD_SDA
R1067
OPT
I2CRPT_SDA
NIRQ
11
26
IF OUT
TPSOP
12
25
RF OUT
TPCLK
R1076
OPT
+3.3V_DVDD_PVSB
AR1079
100
1/16W
LD1000
AR1070
100
TS_0
TS_1
TS_2
TS_3
AR1071
100
TS_4
TS_5
TS_6
TS_7
LGDT3305 POWER
VSB +3.3V B+ BLOCK
+3.3V_PVSB
+3.3V_AVDD_PVSB
+3.3V_PVSB
+3.3V_DVDD_PVSB
L1007
L1008
500
500
C1026
C1023
C1028
C1030
C1032
10uF
0 . 1 u F
10uF
0 . 1 u F
0 . 1 u F
50V
16V
16V
50V
50V
3216
3216
VSB +1.0V B+ BLOCK
+1.2V_PVSB
+1.2V_DVDD_PVSB
R1034
1/4W
C1043
5%
C1044
C1038
0 . 1 u F
0 . 1 u F
10uF
16V
50V
50V
C1079
0 . 1 u F
3216
50V
0 9 . 0 5 . 1 9
37LH250H
T u n e r / 3 3 0 5
5
TS_SYNC
TS_CLK
TS_VALID
C1033
0 . 1 u F
50V
1 4
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