Haier LT26K1 Service Manual page 60

2) Power-2
+5V_SW AV33
U151
LD1117DT33TR
3 2
VIN VOUT
C166 + C159
100uF 10V
100N 16V
+5V_SW TO AV33
Add Thermal Pad
+5V_SW AV25
U153
LD1117ADT-TR
3 2
VIN VOUT
C169 R152 +
100N 16V
SMD/0402
R151
C168 120R 1% 1/10W
10U 10V
Vo=1.25 x (1+120R/120R) = 2.5V
+5V_SW TO AV25
+5V_SW LD1117S33TR
DV33
U156
3 2
VI VO
+ C150
C158 100uF 10V
100N 16V
+5V_SW TO DV33
DV33 DV18_CI
U158 LD1117S18
3 2
VI VO
C173
100N 16V
SMD/0402
DV33 TO DV18_CI
+5V_STB DV33SB
U152
AME8810-AEGTZ 0.6A/3.3V
3 2
VIN VOUT(heat sink)
C155
C151
100N 16V 10U 10V
+5V_STB TO DV33SB
C161
100uF 10V
AV25 AV12
LD1117S-TR
U154
3 2 R162
VIN VOUT
C164
100N 16V + C162
SMD/0402 100uF 16V
C153 R163
10U 10V 1 OHM +-5% 1/10W
Vo=1.25 x (1+1R/120R) = 1.26V
AV25 TO AV12
DV18_DDR DV18_CI
C175 R208
10U 10V NC/0R05 1/10W 5%
DV18_DDR TO DV18_CI
Panel VCC=5V
L150 NEARLY U155
+12V
R176 C165 L150
NC/0R05 1/8W U155 NC/220N 25V
NC/SC4525BSETRT
D150
1 8 2
SW BST K A
2 7
IN FB
3 6
ROSC COMP
4 5
GND SS/EN
C172
NC/10uF/16V R168 ZD150
+12V
NC/SS3P4
C172 NEARLY U155
R171 Q152
NC/56KOHM +-5% 1/10W NC/MUN2211TIG
C187
PANEL_VCC_ON/OFF NC/22N 16V
Q155 C163 ZD150 NEARLY U155
NC/MUN2211TIG NC/100N 16V
PANEL5V
R153
NC/0R05 1/4W
+12V
Panel VCC=12V
8
7
6
5
R157
C133
47K 1/10W 5%
PANEL_VCC ON/OFF:(GPIO5) R164
36K 1/10W 5%
Normal:High
R133
Stand_By:Low
5K1 1/10W 5%
R158
PANEL_VCC_ON/OFF Q151
BC847C
22KOHM +-5% 1/10W
R159
C156 10KOHM +-5% 1/10W
100N 16V
+5V1_TUN
FB150 NC/220R/2000mA
1 2
U159
2 4 FB151
VIN VO
1
VINH
C177 + C160 3 5
GND ADJ
470uF 16V
100N 16V LD39080PT-R
1.22(1+20K//51K/4K7)=4.92V
+5V_TUNER FROM Regulator
60
PANEL5V
NC/15uH
1,5,8,9,10,11,12,13,14
C171 + C154
NC/220uF 16V
NC/BAS32L NC/10U 10V Y5V
1
1,4,5,7,8,11,12,13,14
3,5,10,11,12,13,14
4,5,7,10,12,13,14
R161
NC/39KOHM +-1% 1/10W
R166
NC/2R2 1/8W 5%
C185 R165
NC/330P 50V NC/10K OHM 1% 1/10W
1,3,4,5,6,7,8,9,10,11,12,13,14
Panel VCC deviation
ITEM PANEL
VCC:+12V
R164
1K
Q151 BC847C
0R
R155
R157 2K2
PANEL_VCC
Q150 SI5441
R158 1K
R159 10K
C167 22U
C156 100N
C157 4U7
C154 N/C
R176 N/C
C172 N/C
PANEL_VCC
U155 N/C
R168 N/C
Q155 N/C
Q150
1 R171 N/C
D D
2
D D
Q152 N/C
3
D D
4
S G
C167 C165 N/C
SI5441DC 10U 16V
C184 N/C
1uF/16V
C187 N/C
C174 N/C
R167 N/C
ZD150 N/C
L150 N/C
D150 N/C
C157
NC/4.7uF25V
C185 N/C
C170 N/C
R160 N/C
R161 N/C
R166 N/C
C171 N/C
R153 N/C
+5V_TUNER
R165 N/C
N/C
C163
0 OHM +-5% 1/8W
C152
C176 +
100N 16V
470uF 16V
+24V
1,13 +24V
+12V
1,9,13 +12V
+5V_STB
1,5,13 +5V_STB
DV18_DDR
1,6 DV18_DDR
+5V_SW
+5V_SW
+5V_TUNER
3 +5V_TUNER
+5V1_TUN
1 +5V1_TUN
DV33
DV33
AV33
AV33
DV33SB
DV33SB
AV12
5,6,10,12,14 AV12
PANEL_VCC
14 PANEL_VCC
AV25
3 AV25
DV18_CI
8 DV18_CI
PANEL_VCC_ON/OFF
5 PANEL_VCC_ON/OFF
GND
GND
PANEL
VCC: +5V
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
220uF/16V
0R
10uF
SC4525B
68K
MUN2211TIG
56K
MUN2211TIG
220N
100P
22N
2N2
10K
SS3P4
15UH
BAS32L
330P
22P
1K2
39K
2R2
10uF
0R
10K
100N