LG 47LW6500-UA Service Manual page 39

NON_CHB & CHB TUNER (KOR/USA)
ON_CHB_SANYO_TUNER
NON_CHB_TUNER_V_S CHB_TUNER
TU2102
TU2101
UFA55AL TDSB-H031F
NC_1 SW_CTL1[NC]
1 1
NC_2 SW_CTL2[NC]
2 2
+B[+5V] SW_5V
3 3
NC[RF_AGC] S_3.3V
4 4
AS S_1.8V
5 5
SCL TU_SCL
6 6
SDA TU_SDA
7 7
NC(IF_TP) M_1.8V
8 8
SIF M_SIF
9 9
NC_3 M_3.3V
10 10
VIDEO M_CVBS
11 11
GND GND_1
12 12
+1.2V SD_1.2V
13 13
+3.3V SD_3.3V
14 14
RESET TU_RESET
15 15
IF_AGC_CNTL M_IF_AGC
16 16
DIF_1 M_DIF[N]
17 17
DIF_2 M_DIF[P]
18 18
SD_ERROR
19
19
SD_SYNC
20
SHIELD
SD_VALID
21
SD_MCL
22
SD_D0
NON_CHB_TUNER_H_S
23
TU2101-*1 NC
24
UDA55AL
GND_2
25
GND_3
26
NC_1
1
GND_4
27
NC_2
2
GND_5
28
+B[+5V]
3
GND_6
29
NC[RF_AGC]
4
GND_7
30
AS
5
SD_2.5V[OPT]
31
SCL
6
SD_RESET
32
SDA
7
SIF/NC
33
NC(IF_TP)
8
S_CVBS
34
SIF
9
SD_SCL
35
NC_3
10
SD_SDA
36
VIDEO
37
11
GND
12
SHIELD
+1.2V
13
+3.3V
14
RESET
15
IF_AGC_CNTL
16
DIF_1
17
DIF_2
18
19
SHIELD
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.
+3.3V_S_TU
R2107
OPT
100K
R2104 0
OPT
BLM18PG121SN1D
close to TUNER
C2111
R2102 0 OPT
0 . 1 u F
16V
OPT
RF_SWITCH_CTL +5V_TU
C2101
C l o s e t o T u n e r
0 . 1 u F
16V
BLM18PG121SN1D
OPT
C2108
0 . 1 u F
16V
C l o s e t o T u n e r
+1.26V_TU
R2163
75
OPT
C2106
C2103 C2105
100uF
0 . 1 u F C2112
100pF
16V
50V 16V 100pF
50V
0
R2101
OPT
PIN 25~30 MUST BE SEPARATED TUNER GND
CLOSE TO PIN 25
R2168
0
CHB
R2169
0
CHB
CLOSE TO PIN 29
SCL1_3.3V
SDA1_3.3V
C2102 R2161
C2104
0
18pF 18pF
50V
OPT 50V OPT
OPT 1/16W
5%
R2106
0
close to TUNER
CHB
DUAL COMPONENT
IC2102 1ST : EAN61829801, 2ND : EAN544289201
IC2103
1ST : EAN61507501, 2ND : EAN54428101
RF_SWITCH_CTL_2
+3.3V_S_TU
L2114
CHB
C2117 C2121
100pF 0 . 1 u F
CHB
50V CHB 16V
L2115 CHB +1.8V_S_TU
C2115 C2120
C2183 100pF 0 . 1 u F
0 . 1 u F 50V 16V
16V
CHB CHB C2129
close to TUNER
100pF
SCL0_3.3V
50V
SDA0_3.3V
C2118
C2122
18pF
18pF
+1.8V_M_TU
50V 50V
C2124
C2125
L2112
100pF 0 . 1 u F
BLM18PG121SN1D
50V
16V
CHB CHB
CHB
C2128
100pF
CHB
50V
+3.3V_TU
+3.3V_DE
OPT
R2120
R2117 100K
100
C2116
100uF
C2123
16V
0 . 1 u F
16V
IF_AGC
C2177
IF_N
0 . 1 u F
IF_P
C l o s e t o T u n e r
R2122
33 CHB
CHB_TS_SYNC
R2123
33 CHB
CHB_TS_VAL
R2124
33 CHB
CHB_TS_CLK
R2125
33 CHB
CHB_TS_DATA
+3.3V_S_TU
+5V_TU
R2128
R2121
100K
100
OPT
CHB
C2126
0 . 1 u F
R2114 R2116
16V
220 220
CHB
CHB CHB
CHB_CVBS
E
Q2101
MMBT3906(NXP) FE_TS_DATA[0-7]
B
CHB
FE_TS_DATA[0]
C
R2113 OPT
1K
FE_TS_DATA[1]
FE_TS_DATA[2]
FE_TS_DATA[3]
FE_TS_DATA[4]
FE_TS_DATA[5]
FE_TS_DATA[6]
FE_TS_DATA[7]
+5V_Normal
+5V_TU
L2104 BLM18PG121SN1D
BLM18PG121SN1D L2101
C2109
C2147 C2154
0 . 1 u F
0 . 1 u F 22uF
16V
16V 16V
OPT
+3.3V_Normal
+3.3V_TU
L2103
+5V_TU
MLB-201209-0120P-N2
C2140 C2141
C2144
0 . 1 u F
22uF 0 . 1 u F
R2134
16V
16V 16V
470 R2138
82
TU_SIF
E
B
Q2104
R2133
C
4.7K MMBT3906(NXP)
+3.3V_TU
+3.3V_M_TU
+5V_TU
C2134
100uF
CHB 16V R2142 R2143
220 IC2102
220
AZ1117BH-1.8TRE1
OPT CHB
0
IN ADJ/GND
TU_CVBS 3 1
R2136 E
2
0
OUT
CHB
R2137 B
Q2105
C2176
MMBT3906(NXP)
C 0 . 1 u F
+3.3V_TU AZ1117BH-ADJTRE1
L2111
120-ohm
INPUT
3
C2178
2 . 2 u F
16V
VOUT = VREF *(1+R2/R1)
NON_CHB_LGIT_TUNER
NON_CHB_TUNER_V_L
TU2101-*2
TDVJ-H131F
TS_VAL_ERR
TU_TS_SYNC
TU_TS_CLK
S2_RESET
19
SHIELD
+3.3V_S_TU
+3.3V_TU
L2107
MLB-201209-0120P-N2
C2163
CHB
10uF
10V CHB
C2153
0 . 1 u F
+3.3V_M_TU
L2105
MLB-201209-0120P-N2
C2161 C2167
CHB
10uF 0 . 1 u F
10V
CHB CHB
+3.3V_DE
L2106
MLB-201209-0120P-N2
C2149
0 . 1 u F
16V C2162 C2168
10uF 0 . 1 u F
10V
+1.8V_CHB_TU
+1.8V_S_TU
+1.8V_CHB_TU
CHB
BLM18PG121SN1D
L2108
C2160 C2166
120-ohm
10uF 0 . 1 u F
CHB
10V CHB
C2152 CHB
0 . 1 u F
CHB
BLM18PG121SN1D
L2109
C2159 C2165
120-ohm
10uF 0 . 1 u F
10V
CHB CHB
C2142 C2145
0 . 1 u F
10uF
10V 16V
CHB
CHB
IC2103
+1.26V_TU
L2110
OUTPUT BLM18PG121SN1D
2
1
C2179
R1 C2181
0 . 1 u F
22uF
50V
ADJ/GND
R2
R2167
4 . 7
NON_CHB_TUNER_H_L
TU2101-*3
TDVJ-H101F
NC_1 ANT_PWR[OPT]
1 1
NC_2 BST_CNTL
2 2
+B1[5V] +B
3 3
RF_AGC NC[RF_AGC]
4 4
MOPLL_AS AS
5 5
SCL SCL
6 6
SDA SDA
7 7
NC_3 NC(IF_TP)
8 8
SIF SIF
9 9
NC NC
10 10
VIDEO VIDEO
11 11
GND GND
12 12
+B2[1.2V] 1.2V
13 13
+B3[3.3V] 3.3V
14 14
RESET RESET
15 15
IF_AGC IF_AGC_CNTL
16 16
DIF_1[N] DIF_1
17 17
D I F _ 2 [ P ] DIF_2
18 18
19
SHIELD
BCM35230
21
ATSC_TUNER 50