Sharp LC-42SB45U Service Manual page 66

LC-42SB45U
(2 ) P o w e r - 2
1 2
A
+5V_STB
U152
LD1117S33
3
VI
C151
100N 16V
+5V1_STB TO +3V3SB
B
+5V_SW DV33
U150
LD1117S33
3 2
VI VO
C
C150
+
C158
100N 16V 100uF 16V
+5V_SW TO DV33
D
+5V_SW
Add Thermal Pad
D150
RGP15D
AV25
U153
LD1117DTTR
3 2
VIN VOUT
C160
100N 16V C161
+
SMD/0402 R152
120R 1/10W 1%
100uF 16V
E
C168 R151
120R 1/10W 1%
10uF 10V
Vo=1.25 x (1+120R/120R) = 2.5V
+5V_SW TO AV25
F
R173 NC/1.5 OHM 1/4W
+5V1_TUN +5V_TUNER
R174 NC/1.5 OHM 1/4W
+
C152
1000uF 16V
G
+5V_TUNER
H
1 2
3 4 5
+3V3SB
NC/0R05 1/4W
2
VO
+
C155
220UF/16V
PANEL_VCC_ON/OFF
Add Thermal Pad
PANEL_VCC_ON/OFF:(GPIO5)
Normal:High
Stand_By:Low
+5V_SW AV33
U151
LD1117DT33TR
3 2
VIN VOUT
C159
+
C166
100N 16V 100uF 16V
Reserve
+5V_SW TO AV33
Add Thermal Pad
U154
AV25 AV12
LD1117DTTR
3 2
VIN VOUT
C164 C162
+
100N 16V
SMD/0402 R162
120R 1/10W 1% 100uF 16V
C153 R163
1R 1/8W 5%
10uF 10V
PANEL_VCC_ON/OFF
Vo=1.25 x (1+0R/120R) = 1.25V
AV25 TO AV12
+5V1_TUN
U712
2 4
VIN VO
1
VINH
+ +
C177 C178
3 5
GND ADJ
47uF 25V 47uF 25V
LD39080-PPAK
+5V_TUNER FROM Regulator
3 4 5
6 7
Panel VCC=5V
+24V +12V
R170 R169
NC/0R05 1/4W
NC/TPS5430DDAR
5 4
ENA VSENSE
6 3
GND NC
7 2 R161 NC/15K 1/10W 1%
VIN NC
C172 8 1 NC/4K7 1/10W 1%
PH BOOT
+
C165
U155
NC/470uF 35V NC/100N 50V
R171
NC/0R05 1/10W
R154 C163 L150
NC/10N 50V
NC/100R 1/10W
R160 R172
NC/56R 1/8W NC/56R 1/8W
C174
NC/330P 50V Use new comp
1.22 x (1+15K/4.7K) = 5.1V
PANEL5V PANEL_VCC
R153
NC/0R05 1/8W
+12V PANEL_VCC
Panel VCC=12V
R155 Q150
0R05 1/8W
8 1
D D
7 2
D D
6 3
D D
5 4
S G
SI5441DC
R157
22K 1/10W
PANEL_VCC ON/OFF:(GPIO5)
R164
Normal:High
Stand_By:Low
4K7 1/10W 5%
R158 10K 1/10W C157
Q151 NC/10U 16V
BC847C
C139 C156
+5V_TUNER
R178
0R05 1/4W
C176
6 7
66
8 9 10
1,13 +24V
1,13 +12V
1,7,8,9 +5V_STB
1,9 +3V3SB
1,8,10,11,12,13,14 +5V_SW
3 +5V_TUNER
1 +5V1_TUN
PANEL5V
R166
1,4,5,7,14 DV33
8,12,13,14 AV33
1,5,7,9,12,13 DV33SB
8,10,12 AV12
14 PANEL_VCC
3,11 AV25
5 PANEL_VCC_ON/OFF
NC/22uH
1,3,4,5,6,7,8,9,10,11,12,13,14 GND
+
C154
NC/330UF 16V
C169
+ C167
47uF 25V
8 9 10
11
+24V
+12V
+5V_STB
+3V3SB
A
+5V_SW
+5V_TUNER
+5V1_TUN
DV33
AV33
DV33SB
AV12
PANEL_VCC
AV25
PANEL_VCC_ON/OFF
B
GND
C139 E6
C150 C2
C151 B2
C152 G2
C153 E4
C
C154 B8
C155 B3
C156 E6
C157 E8
C158 C1
C159 C4
C160 E1
C161 E2
C162 E4
C163 B7
C164 E3
C165 B6
C166 C3
C167 E8
C168 E2
C169 E8
D
C172 B6
C174 C7
C176 G6
C177 G4
C178 G5
D150 D1
L150 B8
Q150 D7
Q151 E7
R151 E2
R152 E2
R153 C6
R154 B6
R155 D7
R157 E7
R158 E6 E
R159 E7
R160 B7
R161 B8
R162 E4
R163 E4
R164 E7
R166 A8
R169 A6
R170 A6
R171 B7
R172 B7
R173 F2
R174 G2
R175 G5
R176 G6
F
R177 G5
R178 G6
U150 C2
U151 C4
U152 A3
U153 D1
U154 D3
U155 A7
U712 G4
ZD150
B7
G
H
11