LG 32LD350 Service Manual page 29

VSB B+ BLOCK
+5V_Normal
L1000
MLB-201209-0120P-N2
OPT
R1001
4.7K
VIN
OPT
OPT
R1002
1K EN
C1002
C1003
100uF
0.1uF
16V
50V
OPT
OPT
VSB +3.3V B+ BLOCK
+3.3V_PVSB
+3.3V_AVDD_PVSB
+3.3V_PVSB
L1007
500
C1026
C1023
0.1uF
10uF
50V
16V
3216
VSB +1.0V B+ BLOCK
+1.2V_PVSB
+1.2V_DVDD_PVSB
R1034
0
1/4W
C1043
5% C1044
C1038
0.1uF
10uF 0.1uF
16V 50V
50V
3216
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.
VSB_DEMOD
001:AR30;007:AH18
POWER_ON/OFF2_2
+3.3V_TU
+3.3V_PVSB
OPT
IC1001
L1005
SC156515M-1.8TR
500
R1036
VO 20K
2 4
R1014
OPT
15K
ADJ
1 5
R1015
C1018 C1020 C1077 C1078
OPT
8.2K 100uF 2.2uF 2.2uF
3 0.1uF
16V 16V 16V
50V
GND
+3.3V_DVDD_PVSB
L1008
500
C1028 C1030 C1032 C1033
10uF 0.1uF 0.1uF 0.1uF
16V 50V 50V 50V
3216
R1061 100
IF_P_MSTAR
IF_N_MSTAR
R1062 100
IF_AGC
R1060
1K
C1066
0.1uF
JP1007
JTAG
TS_VALID JP1006
TS_SYNC JP1005
TS_CLK JP1004
IC1000
SC4215ISTRT
+1.2V_PVSB
R1035
NC_1 GND
100 1 8
OPT
R1011
R2
20K
EN ADJ
2 7
R1012
10K R1
VIN VO
3 6
V0 = 0.8(R1+R2) / R2
C1076
1uF NC_2 NC_3
16V 4 5 C1019
C1079
100uF 0.1uF
16V
50V
C1071 C1072
27pF 27pF
X1005
25MHz
R1072 1M
R1073
+1.2V_DVDD_PVSB 0
+3.3V_DVDD_PVSB
C2138
R1068
0.1uF 5.1K
50V
OPT
1
C1069 VROA PLLAVSS
0.01uF 2
VINA2 PLLAVDD
0.01uF C1070 3
VINA1
0.1uF C1068
4
INCAP IC1004
5
VSSAAD10A
R1064 100 LGDT3305
6
I2CSEL
OPT
0 7
R1065
ANTCON
8
VDD
R1066 OPT 9
I2CRPT_SCL
R1067 OPT 10
I2CRPT_SDA
11
1K IF OUT
R1063
12
RF OUT
C1067
0.1uF
+3.3V_DVDD_PVSB
470
R1069
TS_DATA[0-7]
100
AR1070
TS_DATA[0]
TS_DATA[1]
TS_DATA[2]
TS_DATA[3]
AR1071 100
TS_DATA[4]
TS_DATA[5]
TS_DATA[6]
TS_DATA[7]
+3.3V_AVDD_PVSB
1N4148W
R1074 D1000
47K
R1075
VSB_RESET
OPT
C1073
1uF
10V
+3.3V_AVDD_PVSB
L1219
CB3216PA501E
36
35
34
VSS33
33
VSS
32
VDD
31
VSS R1077
22
30
SCL
29
VDD33
R1078
28 22
SDA
27
NIRQ
26
TPSOP
25 C1074 C1075
TPCLK R1076
22pF 22pF
OPT
50V 50V
0
OPT
OPT AR1079
100
1/16W
FE_DEMOD_SCL
FE_DEMOD_SDA
TS_SYNC
TS_CLK
TS_VALID
09.09.03
LD350
VSB_DEMOD 28