Haier LT42A1, Руководство по обслуживанию

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41
10. Schematic Diagram
10.1 Main Board
715G3431 1
1) POWER-1
0.6 x (1+1.1K/1.2K) = 1.15V
MEM_VREF 6
USE 330uF 16V GF
DV33
AC_Detect
SMD/0402
C108
10U 16V
R782 100R 1/16W 5%
R106
3.
9KO
H
M
+
-5
%
1/
10W
T
P
100
1
+5V_STB
R791
-5% 1/10W
From +5V_SW to +1V8/+1V1
1%
STB_PWR5V
BRIGHT_ADJ 14
C121
100N 16V
C806
NC/100N 16V
R147
-5% 1/10W
R102
NC/22K 1/10W
+5V1_TUN
AC_Detect
SMD/0402
USE 330uF 16V GF
DV11
R119
33K 1/10W 5%
Q108
MMBT3904
3
1
2
DV33
R155
10K 1/10W 5%
DC POWER INPUT
Q103
NC/SI3441BDV
1
2
3 4
5
6
D
D
G S
D
D
GPIO_16
R117
1.2KOHM +-1% 1/10W
C127
NC/10U 10V Y 5V
+5V_SW
R104
3.
9KO
H
M
+
-5
%
1/
10W
+5V1_TUN
+5V_SW 2,5,8,9,10,11,12,13,14
OPCTRL3
R154
N
C
/1K 1/
10
W
5%
STANDBY:
Normal: High
Stand_by: Low
DV11 4
+5V1_TUN 2
C114
NC/4.7UF 10V
R123
1.
1KO
H
M
+
-1%
1/
10W
R124
240
O
H
M
+
-1%
1
/10W
+ C110
100uF 10V
+5V_STB TO +5V1_TUN
FOR IF 5V HAS DIP
U103
L5947
1
2
3
4
5
6
7
8
9
Vout
SYNC
INH
COMP FB
FSW
GND
Vcc
TH1
MEM_VREF
DV33SB 2,4,5,7,10,12,13,14
OPCTRL3 4,5
INVERTER_ON_OFF
1%
R132
1K 1/10W 1%
STB_PWR5V
+5V_SW
R107
10K 1/10W 5%
R126
1K 1/16W 5%
+5V_SW
BRIGHT_ADJ
R144
1K 1/16W 5%
STAND_BY 13
R146
100 OHM +-5% 1/10W
STANDBY
C128
330P 50V
+5V_STB 2,5,10,13
L101 15uH
OPWRSB 5
Q104 SI5441DC
1
2
3
4
5
6
7
8
D
D
D
G
S
D
D
D
+12V 2,9,13
INVERTER_ON_OFF:
Normal: High
Stand_By: Low
DV18_DDR 2,6
R113 100R 1/16W 5%
R100
NC/22K 1/10W
DV18_DDR
C106
100N 16V
+5V1) TO +5V_SW BY OPWRSB
STANDBY
DV33 2,4,5,7,8,11,12,13,14
R103 NC/33K 1/10W 5%
FB101 220R/2000mA
1 2
SMD/0402
GND 2,3,4,5,6,7,8,9,10,11,12,13,14
GPIO_16
R150
NC/10K 1/10W 5%
DV18_DDR
+5V_STB
+24V 13
+
C111
330UF 16V
DV33SB
Q107
MMBT3906 PNP
+
C112
330UF 16V
SMD/0402
5V_SW ON/OFF):
Norm al: High
Stand_By: Low
T
P
103
1
O
P
CTRL
3
T
P
105
1
C124
100N 16V
T
P
101
1
U104
L5945
1
2
3
4
5
6
7
8
9
Vout
SYNC
INH
COMP
FB
FSW
GND
Vcc
TH1
+5V1_TUN
L102 15uH
C102
33N 16V
SM
D
/0402
STAND_BY
+ C107
470uF 10V
R130
22K 1/10W
INVERTER_ON_OFF 14
GPIO_16 5,7
+12V
R149
NC/10K 1/10W 5%
GND
C119
1UF 6V3
1%
+24V
C105
100N 16V
STAND_BY:
Normal: Low
Stand_by: High
+5V_STB
OPWRSB
MEM_VREF
Q100
NC/BC847C
3
2
1
D101
SS2P4
1
2
+5V_STB
Q752
2SK1828
+ C101
330UF 16V
+5V_STB
Q101
BC847C
3
2
1
T
P
106
1
DV18_DDR
T
P
104
1
C126
NC/100N 16V
1%
R115
2.
2KO
H
M
+
-1%
1/
10W
R790
-5% 1/10W
T
P
102
1
BRIGHT_ADJ
OPWRSB
BRIGHT_ADJ:
Normal:Max:+3V3, Min:0V
Stand_By:0V
C120
100N 16V
+12V
C104
33N 16V
C132
10U 16V
+5V_STB
INVERTER_ON_OFF
DV18_DDR stabilizer
STANDBY
R131 1K 1/10W 1%
R789
NC/0R05 1/10W 5%
D100
SS3P4
1
2
R148 1K 1/10W 5%
Q106
BC847C
0.6 x (1+2.44K/1.2K) = 1.82V
CN100
CONN
1
2
3
4
5
6
7
8
9
10
11
12
13
SMD/0402
+5V_SW
R125
0R
05 1/
16W
R120 0R05 1/8W
DV11
R122
1.2KOHM +-1% 1/10W
C130 1uF 16V
FB100 220R/2000mA
1 2
DV33
+24V
STAND_BY
R145
-5% 1/10W
CN101
CONN
1
2
3
C129
330P 50V
C131
NC/1uF 16V
R101
NC/22K 1/10W
STANDBY:
Normal: High
Stand_by: Low
DV33