Haier LT32F6, Руководство по обслуживанию

Страница: 47 / 63

47
05. POWER-2
+12V/5V
DV33
AV12
+5V_STB
NEARLY TUNER
DV33SB
R
765
N
C
/820
R
1
/10
W
1%
VINH
1
VIN
2
GND
3
ADJ
5
VO
4
GND2
6
U752
NC/TJ3965GRS-ADJ-5L
R7
64
N
C
/1
5K 1/
10W
1%
R766
NC/4K7 OHM 1/10W 1%
+5V_TUNER
+5V_TUNER FROM Regulator
+5V1_TUN
AV33
PANEL_VCC
NO
R751 R753
+12V NO YES
YES +5V
PANEL
VCC
C756
100N 16V
1.145((15K+0.82K+4K7)/4K7)=4.99V
Panel VCC=12V
R755
10K 1/10W
C758
1UF16V
C767
10U 10V
Q751
BC847C
C757
NC/10U 10V
DV33 TO AV12
Vo=1.25 x (1+1R/120R) = 1.25V
R756
120R 1% 1/10W
+5V1_TUN 4
+5V1_TUN
R757
1 OHM 1/10W
Vo=1.25 x (1+1R/120R) = 1.25V
D
1
D
2
D
3
G
4
S
5
D
6
D
7
D
8
Q750
AON4421
1 2
FB752 NC/220R/2000mA
C768
10U 16V
C765
1UF16V
DV33SB +5V_STB
PANEL_VCC +12V/5V
DV33 AV12
R758 7K5 1/10W 5%
PANEL_VCC_ON/OFF 8
DV33 4,6,7,8,10,11,13,14,15,16
+5V_SW 4,8,10,11,12,13,14,15,16
DV33SB 10,13,14,15,16
+12V/5V 4,10,12,15
PANEL_VCC_ON/OFF
GND 4,6,7,8,9,10,11,12,13,14,15,16
+5V_STB 4,8,10,15
AV12 7,8,9,14,16
AV33 4,8,14,16
PANEL_VCC 16
+5V_TUNER 6
DV12 6
+5V_TUNER
C764
10U 10V
+5V_SW
C769
10U 10V
The item of this page start from "750"
PANEL_VCC_ON/OFF
VIN
3
VOUT
2
GN
D
/AD
J
1
U753
G1117T43Uf
VIN
3
VOUT
2
GN
D
1
4
4
U751
G903T63UF
SMD/0402
VIN
3
GN
D
1
VOUT
2
TH
4
U754
G1117T63Uf
DV12
C755
4.7UF 10V
R
761
4K
7 OH
M
1/
10
W
1%
0.5((22K+20K+4K7)/4K7)=4.96V
NC
1
EN
2
VIN
3
NC
4
GND
8
FB
7
VO
6
NC
5
TH1
9
U755
SC4215HSETRT
1 2
FB750 NC/220R/2000mA
+5V1_TUN +5V_TUNER
R7
59
2
0K 1/
10W
1%
R7
60
2
2K 1/
10W
1%
+5V_TUNER FROM Regulator
+5V_STB TO DV33SB
+5V_STB
+
C753
100UF 16V
+
C752
100UF 16V
EC063-25-AI
EC063-25-AI
R750 10K1/16W
SMD/0402
C766
1UF16V
DV12 DV33
1 2
FB751 220R/2000mA
C759
NC/10U 10V
DV18_DDR 4,9
DV18_DDR
DV33 TO DV12 for DVBC Demod
R762
120R 1% 1/10W
R763
1 OHM 1/10W
R752
5.1K 1/10W
C754 1UF16V
R753
0R05 4A 1/4W
R751
NC/0R05 4A 1/4W
PANEL_VCC ON/OFF:(GPIO5)
Normal:High
Stand_By:Low
GND