7-2. Circuit Diagram
Service Manual
Model No.:
- 27 -
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
+5V_STBY
PWR_ON/OFF#
PANEL_ON/OFF
VCCLCDFN
BL-ON/OFF
BL-ON/OFF
BRIGHT
BRIGHT
+5V
BRIGHT
BL-ON/OFF
12V-LED12V-LED12V-LED12V-LED
+5V_Normal
+12V_NORMAL
+5V_Standby
+5V_Standby
+3.3V_Standby
+3.3V_Normal
+1.8V_DDR2
+5V_DDR_R
+5V_Normal
+5V_DDR_R
+2.5V_Normal
+5V_Normal
+12V_Normal
+3.3V_Standby
VCC-Panel
+1.2V_VDDC
+5V_Normal
+5V_Normal
+5V_Normal
+5V_Normal
+12V_NORMAL +12V
+5V+5V_Normal
+5V_Normal
+5V_Standby
+3.3V_Standby
+5V_Standby
+5V_Normal
+3.3V_Normal
PANEL-ON/OFF# 2
PANEL_ON/OFF2
ON_PBACK2
BRI_ADJ2
PWR-ON/OFF 2
Title
Size Document Number Rev
Date: Sheet
of
<Doc> <RevCode>
<Title>
B
17Wednesday, June 09, 2010
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
<Title>
B
17Wednesday, June 09, 2010
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
<Title>
B
17Wednesday, June 09, 2010
H:ON
L:OFF
L: Panel active
ON
OFF
1.29V
670mA
ON
OFF
SHEET: 1 OF 7
TITLE: DC POWER
DWG NO.
MODEL: MSTV_6M48
Design: SuHaoFeng
SHEN ZHEN MTC MULTIMEDIA CO.,LTD
VER: 1.0
PART NO.:
Apprd:
Checked:
ON
OFF
Ўৠ݀ᵓϔ㟈ˈࡴϔ㑻ডⳌ
270mA
90mA
140mA
140mA
rms766mA max1.31A
300mA MAX 400mA
C1123
10uF
C1123
10uF
FB101
42ȍ-4A-0805
FB101
42ȍ-4A-0805
R110
4.7K
R110
4.7K
Q107
BT3904
Q107
BT3904
1
2 3
C106
0.1uF/25V
C106
0.1uF/25V
+
EC106
220uF/25V/GZ
+
EC106
220uF/25V/GZ
12
R116
4.7K
R116
4.7K
U101
AMS1084-SO252
TO-252 U101
AMS1084-SO252
TO-252
Adjust
1
VIN
3
VOUT
2
TAB
4
Q103
BT3904
Q103
BT3904
2
1
3
R103 0R 0805R103 0R 0805
R128
27K
R128
27K
Q102 AO3407Q102 AO3407
1
32
C118
NC/100PF/50V
C118
NC/100PF/50V
R129
27K
R129
27K
R121
820
R121
820
ADJ
OUT
IN
U103
1117-1.8
ADJ
OUT
IN
U103
1117-1.8
3
2
1
4
R112
10K
R112
10K
H3
NC/HOLE-V8
H3
NC/HOLE-V8
1
2
3
4
5
6
7
8
9
C111
0.1uF/25V
C111
0.1uF/25V
C102
0.1uF/25V
C102
0.1uF/25V
R130
33
R130
33
MP1482
U105
MP1482
MP1482
U105
MP1482
VIN
2
SW
3
GND
4
FB
5
ON/OFF
7
COMP
6
BS
1
NC/SS
8
R134
0R 0402
R134
0R 0402
R131 NC/0RR131 NC/0R
R108
510R
R108
510R
R113
12K
R113
12K
R111
4.7K
R111
4.7K
+
EC103
220uF/16V
+
EC103
220uF/16V
R135
0R 0402
R135
0R 0402
+
EC102
220uF/16V/GZ
+
EC102
220uF/16V/GZ
C115
0.1uF/25V
C115
0.1uF/25V
R137
1K
R137
1K
C117
0.1uF/25V
C117
0.1uF/25V
C119 1.5nFC119 1.5nF
R136
4.7K
R136
4.7K
R126
470R/1%
R126
470R/1%
CN101
MAINPOWER
CN101
MAINPOWER
1
2
3
4
5
6
7
8
9
10
11
12
13
C105
0.1uF/25V
C105
0.1uF/25V
C103
10uF
C103
10uF
R122
510R
R122
510R
Q106
BT3904
Q106
BT3904
1
2 3
CN102
NC/5p,2.0
CN102
NC/5p,2.0
1
2
3
4
5
C108
0.1uF/25V
C108
0.1uF/25V
R127
510R/1%
R127
510R/1%
R133 NC/0R 0805R133 NC/0R 0805
R117 8.2KR117 8.2K
C110
0.1uF/25V
C110
0.1uF/25V
C112 NC/0.01uFC112 NC/0.01uF
R132 NC/0R 0805R132 NC/0R 0805
R114
4.7K
R114
4.7K
C104
10uF
C104
10uF
H1
4p,GND
H1
4p,GND
1
2
3
4
Q105
BT3904
Q105
BT3904
2
1
3
+
EC105
220uF/16V/GZ
+
EC105
220uF/16V/GZ
12
R123
820R
R123
820R
C1122
10uF
C1122
10uF
R105
4.7K
R105
4.7K
C1121
10uF
C1121
10uF
C1120
10nF
C1120
10nF
C109
0.1uF/25V
C109
0.1uF/25V
C107
0.1uF/25V
C107
0.1uF/25V
CN109
DCJACK
CN109
DCJACK
1
2
3
ADJ
OUT
IN
U104
1117-ADJ
ADJ
OUT
IN
U104
1117-ADJ
3
2
1
4
D101
1N4001
D101
1N4001
2 1
R106
4.7K
R106
4.7K
+
EC104
470uF/16V/GZ
+
EC104
470uF/16V/GZ
R118
10K 1%
R118
10K 1%
CN107 DCJACKCN107 DCJACK
1
1
2
2
3
3
R109
10K
R109
10K
R120
100K
R120
100K
R124
470R/1%
R124
470R/1%
C113
0.1uF/25V
C113
0.1uF/25V
R115
4.7K
R115
4.7K
CN106
4P,2.0
CN106
4P,2.0
1
1
2
2
3
3
4
4
Q101
BT3904
Q101
BT3904
1
2 3
ADJ
OUT
IN
U102
1117-3.3
ADJ
OUT
IN
U102
1117-3.3
3
2
1
4
L101 22uH-2AL101 22uH-2A
R107
10K
R107
10K
R102 100KR102 100K
C116
100pF
C116
100pF
C114
0.1uF/25V
C114
0.1uF/25V
R104 NC/0R 0805R104 NC/0R 0805
Q104
BT3904
Q104
BT3904
1
2 3
R119 8.2KR119 8.2K
C101
0.1uF
C101
0.1uF
R101
10K
R101
10K
R125
220R
R125
220R
H4
NC/HOLE-V8
H4
NC/HOLE-V8
1
2
3
4
5
6
7
8
9
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