Sharp LC-22LE320 Service Manual page 191

02. POWER-2
+5V_STB DV33SB
U751
G903T63UF
3 2
VIN VOUT
C765
1UF16V 10U 10V
+5V_STB TO DV33SB
DV33 AV12
U753
G1117T43Uf
3 2
VIN VOUT
C758 C764
1UF16V 10U 10V
R756
120R 1% 1/10W
C757 R757
NC/10U 10V 1 OHM 1/10W
Vo=1.25 x (1+1R/120R) = 1.25V
DV33 TO AV12
DV33
U754
G1117T63Uf
3 2
VIN VOUT
C766
1UF16V
R762
120R 1% 1/10W
R763
C759 1 OHM 1/10W
NC/10U 10V
Vo=1.25 x (1+1R/120R) = 1.25V
2008-03-14
DV33 TO DV12 for DVBC Demod
Panel VCC=12V
C767
PANEL_VCC ON/OFF:(GPIO5)
Normal:High
Stand_By:Low
PANEL_VCC_ON/OFF
+5V1_TUN
C752 +
100UF 16V
EC063-25-AI
DV12
C769
10U 10V
+5V_STB +12V/5V
R751 R753
NC/0R05 4A 1/4W 0R05 4A 1/4W
Q750
8 1
D D
7 2
D D
6 3
D D
5 4
S G
AON4421
R755
10K 1/10W C754 1UF16V
R758 7K5 1/10W 5%
R752
5.1K 1/10W
PANEL
R750 10K1/16W Q751
VCC
SMD/0402 BC847C
+5V
C755
4.7UF 10V
+12V
FB750 NC/220R/2000mA
1 2
FB751 220R/2000mA
1 2
4 5
NC NC
3 6
VIN VO
2 7
C756
EN FB
1 8
100N 16V
NC GND
SMD/0402
U755
SC4215HSETRT
0.5((22K+20K+4K7)/4K7)=4.96V
+5V_TUNER FROM Regulator
191
LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320
PANEL_VCC
4,10,12,15
4,8,10,15
4,8,10,11,12,13,14,15,16
4,6,7,8,10,11,13,14,15,16
4,8,14,16
C768
10,13,14,15,16
10U 16V
7,8,9,14,16
16
4,9
8 PANEL_VCC_ON/OFF
4,6,7,8,9,10,11,12,13,14,15,16
R753 R751
NO YES
YES NO
+5V_TUNER
+ C753
100UF 16V
EC063-25-AI
+12V/5V
+12V/5V
+5V_STB
+5V_STB
+5V_SW
+5V_SW
+5V1_TUN
4 +5V1_TUN
+5V_TUNER
6 +5V_TUNER
DV33
DV33
AV33
AV33
DV33SB
DV33SB
AV12
AV12
PANEL_VCC
PANEL_VCC
DV18_DDR
DV18_DDR
DV12
6 DV12
PANEL_VCC_ON/OFF
GND
GND