Read LG 32LV555H (CHASSIS:LA05E) Service Manual online
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.
0 . 1 u F
C111
0
R100
I2CRPT_SCL_3305
M19
TUNER_CVBS
15:B19
0 . 1 u F
16V
C121
OPT
0 . 1 u F C128
22pF
50V
50V
C115
+5V_DEVICE
82
R102
+3.3V_TU
10uF
6.3V
C141
0 . 1 u F
16V
16V
C143
SCL2
9 : A L 1 4 ; 1 5 : C 2 0
1
R117
+3.3V_AVDD_PDMOD
100
R118
IF_P_3305
H12
I2CRPT_SCL_3305
Z22
47pF
50V
50V
C144
+5V_DEVICE
47pF
50V
50V
C145
I2CRPT_SDA_3305
M19
0 . 1 u F
16V
16V
C109
+3.3V
270
R144
47K
R134
IF_N_3305
H13
AZ1117BH-ADJTRE1
IC101
1
ADJ/GND
2
OUTPUT
3
INPUT
47pF
50V
50V
C146
+1.2V_DVDD_PDMOD
O_BRCM_PKT0_DATA
10:M27
TUNER_MAIN_RESET
9 : A J 2 1
TU_SIF
11:B11
I2CRPT_SDA_3305
Z21
IF_AGC_3305
Z21
0 . 1 u F
C130
IF_N_3305
Z23
0 . 1 u F
16V
C138
TP_ERR
8 : P 2 0
1/10W
200
5%
R114
470
R130
22
R116
120
R112
ISA1530AC1
Q101
E
B
C
SDA2
9 : A L 1 4 ; 1 5 : C 2 0
220
R128
0 . 1 u F
16V
C127
OPT
4.7K
R139
1/10W
120
5%
R126
+3.3V_AVDD_PDMOD
0 . 1 u F
C108
NFM18PS105R0J
6.3V
C113
OUT
IN
GND
0 . 1 u F
C104
ISA1530AC1
Q100
E
B
C
O_BRCM_PKT0_CLK
10:M27
27pF
50V
C119
+3.3V_TU
+1.26V_TU
25MHz
X100
0 . 1 u F
16V
C120
1M
R125
4.7K
R132
+1.26V_TU
100
R121
IF_P_3305
Z23
C106
OUT
IN
GND
LGDT3305
IC102
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
O_BRCM_PKT0_SYNC
10:M27
BLM18PG121SN1D
L110
0 . 1 u F
C132
1/10W
200
5%
R136
0
R105
1K
R122
0
R110
TU_SIF_INCM
1 1 : E 1 1
+3.3V_DVDD_PDMOD
0 . 1 u F
16V
C129
220
R129
27pF
50V
50V
C122
0 . 1 u F
16V
C105
C107
OUT
IN
GND
4.7K
R133
22uF
6.3V
C123
+3.3V_TU
1uF
6.3V
6.3V
C103
1K
R123
22
R115
0
R103
+5V_DEVICE
22pF
50V
C116
100
R119
IF_AGC_3305
H13
BLM18PG121SN1D
L100
+5V_DEVICE
+3.3V_DVDD_PDMOD
+D_1.2V
0 . 1 u F
16V
C112
0 . 1 u F
16V
C110
BLM18PG121SN1D
L109
10uF
6.3V
C102
OPT
NFM18PS105R0J
6.3V
C160
OUT
IN
GND
10uF
C100
OPT
NFM18PS105R0J
6.3V
C150
OUT
IN
GND
BLM18PG121SN1D
L101
+3.3V
+3.3V
L103
10uF
6.3V
6.3V
C101
OPT
0 . 1 u F
16V
16V
C133
+3.3V_AVDD_PDMOD
NFM18PS105R0J
6.3V
C136
OUT
IN
GND
+1.2V_DVDD_PDMOD
TDVJ-H131P
TU100
14
3.3V
13
1.2V
5
N.C
12
GND
11
CVBS
2
N.C
10
N.C
4
N.C
1
N.C
17
IF_N
9
S I F
8
N.C
3
+5V
16
IF_AGC
7
SDA
6
SCL
15
RESET
18
I F _ P
SHIELD
19
1
18
Tuner/Demod.
LV555H-UA
2 0 1 0 . 1 2 . 1 0
TPSOP
OPM
VSSAD10
VROA
VOUT = VREF *(1+R2/R1)
60mA
MIN 10ms
VDD
VDD33
RF OUT
PLLAVSS
SLIM_SCAN
INCAP
VSS
NRST
ANTCON
TO BCM3549(for IP PPV)
TPDATA[0]
NIRQ
VSS33
TPDATA[5]
IF OUT
TPDATA[1]
XTALI
I2CSEL
TPCLK
I2CRPT_SDA
PLLAVDD
VDD33
MIN 1ms
VDD1.0V
VSS33
c a u t i o n : D e m o d u l a t o r P o w e r S e q u e n c e
nRST
VSSAAD10A
VSS33
I 2 C : 0 x 1 C , 0 x B 2 ( s e l 0 )
MIN 1ms
XM
TPVALID
TPDATA[2]
VDD3.3V
CLOSE TO LDO
XTALO
T r a c e a l o n g s i d e T U _ S I F s i g n a l
VDD
VSS
P l a c e T P / r e s i s t o r n e a r T U N E R c o n n e c t o r
TPDATA[7]
TPERR
TPDATA[4]
VDD33
I2CRPT_SCL
R2
VDD
SDA
R1
VINA2
VINA1
VSS
TPDATA[6]
i n p u t ; D i g i t a l I O
TPDATA[3]
SCL
A p p l i c a t i o n
VCCAAD10A
MIN 1ms
Dmodulator +1.0V B+ BLOCK
CLOSE TO LGDT3305
CLOSE TO LGDT3305
Dmodulator +3.3V B+ BLOCK
CLOSE TO LGDT3305
T u n e r / D e m o d u l a t o r
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