LC-42SB45U
[1]MAIN SCHEMATIC DIAGRAM
1.Power-1
CHAPTER 8.SCHEMATIC DIAGRAM
65
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A A
B B
C C
D D
E E
F F
G G
H H
DLA/DJA MT538X - 4 LAYERS
DC POWER INPUT
+5V_STB(+5V4) TO +5V_SW+24V or +12V TO +5V_STB(+5V4)_reserved for OTS42"
From +12V to +1V8/+1V1 By OPWRSB
OPWRSB(+5V_SW ON/OFF):
Normal: High
Stand_By: Low
OPWRSB(+1V1):
Normal: High
Stand_By: Low
OFF: Low
BRIGHT_ADJ:
Normal:Max:+3V3, Min:0V
Stand_By:0V
INVERTER_ON_OFF:
Normal: High
Stand_By: Low
STAND_BY:(OPCTRL3)
Normal: Low
Stand_by: High
Use new comp
0.6 x (1+1K/1.2K) = 1.1V0.6 x (1+2.4K/1.2K) = 1.8V
+5V_STB TO +5V1_TUN
DV18_DDR stabilizer
1%
1%
OPWRSB(+1V8):
Normal: High
Stand_By: Low
OFF: Low
1%
SMD/0402
SMD/0402
SMD/0402
SMD/0402
STANDBY:
Normal: High
Stand_by: Low
STANDBY:
Normal: High
Stand_by: Low
CEC_PWR(DV33SB ON/OFF):
Normal: Low
Stand_By: High
+3V3SB TO DV33SB BY CEC_PWR
DV33SB for 538X MCU
For PFL32 <0.3W
SMD/0402
SMD/0402
SMD/0402
CEC_PWRSB:
Normal: High
Stand_by: Low
+5V_STB(+5V4)
Reserve
Reserved
CN100 B1
C100 B4
C101 B9
C102 F2
C103 D9
C104 F5
C105 B8
C106 B4
C107 B5
C108 E3
C109 F4
C110 C6
C111 E6
C112 E1
C113 D4
C114 B8
C115 C5
C116 D8
C117 E9
C118 F9
C119 G9
C120 G9
C121 C8
C122 C6
C123 G10
C124 D2
C125 F3
C126 G8
C127 G8
C128 E5
C129 E2
C130 E6
C131 E1
C132 E4
C133 B9
C134 D9
C135 C2
C136 C2
C137 C8
C138 C7
C140 E8
FB100 C1
FB101 C1
L100 B5
L101 E2
L102 E5
Q100 G8
Q101 B8
Q102 E8
Q103 F7
Q104 B8
Q105 D9
Q106 D2
Q107 E7
Q108 F3
Q109 F4
Q110 C4
R100 G7
R101 G7
R102 G8
R103 G7
R104 E2
R105 B5
R106 E5
R107 B7
R108 B2
R109 C5
R110 C5
R111 D9
R112 B6
R113 B2
R114 F10
R115 E1
R116 E6
R117 F1
R118 B5
R119 B8
R120 F7
R121 B5
R122 F5
R123 E5
R124 E1
R125 E5
R126 D2
R127 F3
R128 F4
R129 D1
R130 B8
R131 F9
R132 G9
R133 B4
R134 B3
R135 E4
R136 E3
R137 E1
R138 D8
R139 E8
R140 D7
R141 E9
R142 B2
R143 F7
R144 D2
R145 C7
R146 D4
R147 D4
R148 C6
R149 D9
R150 E8
TP100 B1
TP101 B1
TP102 B1
TP103 B1
TP104 B1
TP105 B1
TP106 B1
U101 B4
U102 F10
U103 E4
U104 E3
ZD100 E5
ZD101 E2
ZD102 C5
+12V
+24V
DV18_DDR
DV11
BRIGHT_ADJ
STAND_BY
INVERTER_ON_OFF
GND
OPWRSB
+5V_SW
+5V_STB
STANDBY
BRIGHT_ADJ
INVERTER_ON_OFF
+5V1_TUN
OPWRSB
MEM_VREF
VTT
MEM_VREF
STANDBY
OPWRSBOPWRSB
STAND_BY
STANDBY
DV33
CEC_PWR
+3V3SB
CEC_PWR
DV33SB
OPWRSB
STAND_BY
CEC_PWRSB
CEC_PWRSB
CEC_PWRSB
OPWRSB
+12V2,13
GND2,3,4,5,6,7,8,9,10,11,12,13,14
+24V2,13
DV18_DDR4,6
DV114
STAND_BY5
BRIGHT_ADJ14
INVERTER_ON_OFF14
OPWRSB5
+5V_SW2,8,10,11,12,13,14
+5V_STB2,7,8,9
+5V1_TUN2
VTT6
MEM_VREF6
DV332,4,5,7,14
+3V3SB2,9
CEC_PWR9
DV33SB5,7,9,12,13
+12V
+5V_STB +5V_SW
+5V_STB
+12V
DV11
+12V
DV18_DDR
+5V1_TUN+5V_TunerB+
VTT
DV18_DDR
+24V
DV18_DDR
+24V
DV33
+3V3SB DV33SB
STB_PWR5V
DV33SB
+5V_SW
STB_PWR5V +5V_STB
+5V_TunerB++5V_STB
R118
NC/0R05 1/10W 5%
C121
NC/100N 16V
U103
L5985
1
2
3
45
6
7
8
9
Vout
SYNC
INH
COMPFB
FSW
GND
Vcc
TH1
C132
10uF 16V
C120
NC/10UF 10V
FB100 220R/2000mA
1 2
C109
100N 16V
TP102
1
C127
4.7UF 10V
C116
100N 25V
Q107
NC/MUN2211TIG
C107
NC/10N 50V
C117
NC/10uF/10V
C140
10U 1 0V 0805
R148
NC/1K 1/10W
ZD100
SS2P4
1
2
+
C103
NC/100uF/16V
R110
NC/56R 1/8W
R116
NC/1K 1/10W 5%
C122
NC/100N 50V
R108 NC/100R 1/16W 5%
R104
3K9 1/10W
R119
22K 1/10W
R141
NC/5K1 1/10W
+
C100
NC/470uF 35V
Q108
BC847C
Q110
NC/MUN2211TIG
R136
47K 1/10W
R135
47K 1/10W
R106
3K9 1/10W
C129
330P 50V
R115
2K2 1/10W
Q105
NC/SI3441BDV
1
2
34
5
6
D
D
GS
D
D
R128
10K 1/10W 5%
FB101 220R/2000mA
1 2
R150
0R05 1/10W 5%
+
C135
470uF 16V
Q103
SI3441BDV
1
2
34
5
6
D
D
GS
D
D
C124
100N 16V
U102
LP2996MRX
1
2
3
4 5
6
7
8
9
GND
SD
VSENSE
VREF VDDQ
AVIN
PVIN
VTT
HS
R139
NC/2K2 1/10W 5%
TP101
1
R130
5K1 1/10W
C108
10uF 16V
L100 NC/22uH
TP100
1
R126 1K 1/16W 5%
R120 NC/0R05 1/4W
TP106
1
C136
100N 50V
C137
22U 10V
C104
33N 16V
ZD101
SS2P4
1
2
L101 15uH
TP104
1
Q100
BC847C
3
2
1
CN100
63392 12P 2.0mm
1
2
3
4
5
6
7
8
9
10
11
12
+
C110
470uF 16V
R134
NC/0R05 1/4W
C134
100N 16V
C133
100N 16V
Q101
BC847C
3
2
1
R109
NC/56R 1/8W
R102
5K1 1/10W
R114 4K7 1/10W
R125
47R 1/10W 5%
Q102
NC/MUN2211TIG
R101
4K7 1/10W 5%
R131 NC/75R 1/10W 1%
R137
NC/1K 1/10W 5%
R112
NC/15K 1/10W 1%
C118
100N 16V
C119
100N 16V
C105
100N 16V
Q109
BC847C
+
C101
100uF 16V
Q106
BC847C
R113 1K 1/16W 5%
C102
33N 16V
R145
NC/10K 1/16W 5%
R144
NC/2K2 1/16W 5%
TP103
1
R127
10K 1/10W 5%
C138
NC/1U 10V
L102 15uH
R142 NC/100R 1/16W 5%
Q104 SI5441DC
1
2
3
45
6
7
8
D
D
D
GS
D
D
D
R122
1K2 1/10W
R103
22K 1/10W
R129
2K2 1/16W 5%
C123
100N 16V
R132
NC/75R 1/10W 1%
R140
NC/3.3KOHM +-5% 1/10W
TP105
1
C125
100N 16V
R105
NC/0R05 1/10W
C126
100N 16V
R147 0R05 1/4W
R117
1K2 1/10W
+
C113
220uF 25V
C130
NC/22N 16V
+
C111
330UF 16V
C114
NC/4.7UF 10V
C106
NC/100N 50V
R143
0R05 1/4W
R111
0R05 1/8W
U104
L5985
1
2
3
4 5
6
7
8
9
Vout
SYNC
INH
COMP FB
FSW
GND
Vcc
TH1
R107
10K 1/10W 5%
R100
22K 1/10W
R121
NC/4K7 1/10W
C115
NC/330P 50V
R146 NC/0R05 1/4W
U101
NC/TPS5420DR
1
2
3
45
6
7
8
BOOT
NC
NC
VSENSEENA
GND
VIN
PH
C128
330P 50V
R149
NC/2K2 1/10W 5%
R133
NC/0R05 1/4W
R138
NC/22K 1/10W
+
C112
330UF 16V
R123
1K 1/10W 1%
C131
NC/22N 16V
ZD102
NC/SS2P4
1
2
R124
200R 1/10W 1%
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