22 Meridian 1
6. Schematic
6.1 Scaler Board
715G3292-1B
1
1
2
2
3
3
4
4
5
5
A
A
B
B
C
C
D
D
BRIGHT_ADJ
STAND_BY
INVERTER_ON_OFF
OPWRSB
MEM_VREF
MEM_VREF
INVERTER_ON_OFF
BRIGHT_ADJ
OPWRSB
OPWRSB
OPWRSB
+18V_A
STANDBY
OPWRSB
STANDBY
DV18_DDR
+5V
+5V_STB
+5V
+18V
+5V_STB
+5V_SW
+18V
+18V_A
DV33SB
DV33
DV18_DDR
DV11
+5V_SW
+5V_SW
STAND_BY
5
BRIGHT_ADJ
14
INVERTER_ON_OFF
14
OPWRSB
5
MEM_VREF
6
+18V_A
6
DC POWER INPUT
BRIGHT_ADJ:
Normal:Max:+3V3, Min:0V
Stand_By:0V
INVERTER_ON_OFF:
Normal: High
Stand_By: Low
DV18_DDR stabilizer
SMD/0402
5V_SW ON/OFF):
Normal: High
Stand_By: Low
+5V1) TO +5V_SW BY OPWRSB
5V_SW ON/OFF):
Normal: High
Stand_By: Low
+18V TO +18V_A BY OPWRSB
SMD/0402
OPWRSB:
Normal: High
Stand_by: Low
SMD/0402
SMD/0402
Vout=0.8 x (1+(1k+3K)/10k) = 1.12V
Vout=0.8 x (1+(3K+3K)/4.7k) = 1.82V
Power 1
C116
10uF 25V
C116
10uF 25V
L101
4.7uH
L101
4.7uH
C105
100N 16V
C105
100N 16V
C108
10U 16V
C108
10U 16V
C115
NC/4UF7 25V
C115
NC/4UF7 25V
C118
10uF 25V
C118
10uF 25V
R129
NC/0 OHM +-5% 1/4W
R129
NC/0 OHM +-5% 1/4W
1
TP104TP104
C117
10uF 25V
C117
10uF 25V
R119
-5% 1/10W
R119
-5% 1/10W
R124
10R 1/8W 5%
R124
10R 1/8W 5%
1
TP102TP102
1
TP103TP103
R120
-5% 1/10W
R120
-5% 1/10W
R109
10K 1/10W
R109
10K 1/10W
C121
4.7UF 10V
C121
4.7UF 10V
R107
-5% 1/10W
R107
-5% 1/10W
C102
1uF10V
C102
1uF10V
R126
NC/10K 1/16W 5%
R126
NC/10K 1/16W 5%
R106
10K 1/10W
R106
10K 1/10W
R121
10K1/10W
R121
10K1/10W
R125
10R 1/8W 5%
R125
10R 1/8W 5%
Q106
NC/BC847C
Q106
NC/BC847C
C110
10uF 25V
C110
10uF 25V
R131
1K 1/10W 1%
R131
1K 1/10W 1%
R132
1K1/10W
R132
1K1/10W
C106
100N 16V
C106
100N 16V
+
C112
470UF 10V
+
C112
470UF 10V
1
2
3
4
5
6
7
8
9
10
CN100
CONN
CN100
CONN
S
1
S
2
S
3
G
4
D
8
D
7
D
6
D
5
Q105
SI4835DDY
Q105
SI4835DDY
L102
4.7uH
L102
4.7uH
VCC
1
REF
2
GND
3
FB
4
EN
5
PGND
6
LX
7
VIN
8
Thermal Pad
9
U103
G5627F11U
U103
G5627F11U
R144
NC/4K7 1/16W 5%
R144
NC/4K7 1/16W 5%
R117
3KOHM 1/10W
R117
3KOHM 1/10W
R130
1KOHM +-5% 1/10W
R130
1KOHM +-5% 1/10W
+
C111
470UF 10V
+
C111
470UF 10V
R108
-5% 1/10W
R108
-5% 1/10W
VCC
1
REF
2
GND
3
FB
4
EN
5
PGND
6
LX
7
VIN
8
Thermal Pad
9
U104
G5627F11U
U104
G5627F11U
R118
4K7 OHM 1/10W 1%
R118
4K7 OHM 1/10W 1%
R133
1KOHM +-5% 1/10W
R133
1KOHM +-5% 1/10W
+
C107
470uF 10V
+
C107
470uF 10V
1
TP105TP105
1
2
FB102
NC/120R/3000mA
FB102
NC/120R/3000mA
R114
1KOHM +-5% 1/10W
R114
1KOHM +-5% 1/10W
C120
100N 16V
C120
100N 16V
C109
100N 25V
C109
100N 25V
R113
NC/100 OHM +-5% 1/10W
R113
NC/100 OHM +-5% 1/10W
C129
100N 25V
C129
100N 25V
R122
3KOHM 1/10W
R122
3KOHM 1/10W
A
1
K
2
D102
BAS32L
D102
BAS32L
D
1
D
2
D
3
G
4
S
5
D
6
D
7
D
8
Q104 SI5441DC
Q104 SI5441DC
R116
100 OHM +-5% 1/10W
R116
100 OHM +-5% 1/10W
C130
NC/10P 50V
C130
NC/10P 50V
C124
NC/100N 16V
C124
NC/100N 16V
C104
1uF10V
C104
1uF10V
C122
4.7UF 10V
C122
4.7UF 10V
+
C101
330uF 10V
+
C101
330uF 10V
C132
10U 16V
C132
10U 16V
1
2
FB100
120R/3000mA
FB100
120R/3000mA
3
2
1
Q102
BC847C
Q102
BC847C
R115
3KOHM 1/10W
R115
3KOHM 1/10W
C134
NC/10P 50V
C134
NC/10P 50V
+
C103
100uF 25V
+
C103
100uF 25V
1
TP101TP101
C128
100N 25V
C128
100N 25V
3
2
1
Q101
BC847C
Q101
BC847C
C119
1uF16V
C119
1uF16V
C114
NC/4.7UF 10V
C114
NC/4.7UF 10V
R123
1K 1/10W 1%
R123
1K 1/10W 1%
1
2
FB101
120R/3000mA
FB101
120R/3000mA
CN100 A1 C101 A4 C102 C3 C103 A5
C104 C2 C105 A4 C106 A3 C107 A2
C108 C2 C109 A5 C110 C1 C111 C1
C112 C3 C114 A4 C115 A5 C116 C2
C117 C1 C118 C2 C119 C5 C120 C5
C121 B3 C122 B5 C124 B2 C128 C2
C129 C3 C130 C1 C132 C1 C134 C3
D102 B1 FB100 A2 FB101 A2 FB102 A2
L101 C2 L102 C1 Q101 A3 Q102 A5
Q104 A4 Q105 A5 Q106 B2 R106 C1
R107 A3 R108 A4 R109 C2 R113 B1
R114 B1 R115 C3 R116 B1 R117 C3
R118 C3 R119 A3 R120 A5 R121 C2
R122 C1 R123 C1 R124 C3 R125 C1
R126 B2 R129 A5 R130 A4 R131 C4
R132 C4 R133 A5 R144 A2 TP101 A1
TP102 A1 TP103 A1 TP104 A1 TP105 A1