37’’ LCD TV Color Monitor Norcent LT3725
41
FB120
120 OHM
1
2
GRN
U107_B2
U107_G
U107_A2
U107_G
R1H5
100 1/10W
FB124
120 OHM
1
2
YPbPr1
R190
22K 1/10W
F
Page 11 - YPbPr/RGB Input
A3
11
19
Thursday , October 12, 2006
Title
Size
Document Number
Rev
Date:
Sheet
of
Pb2_IN
R1
J9
4.
7K
1/
10W
+
C1A6
47uF/6.3V
CN102
DB15
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
17
16
R1F4
22K 1/10W
C1E5
47pF
R172
NC/ 0 1/16W
RED
RGB_HSYNC 12,15
Y PbPr2
YPbPr1_Y
Q109
2SC2412KR
0
RGB_VSYNC 12,15
BLUE_Pb
R193
22K 1/10W
Y PbPr2_Pr
R1
H
1
2.
7K
1/
10W
FB130,FB131 must near CN102
VGA_R
R1
J6
3.
3K
1/
10W
C176
0.1uF
Z
D
139
M
LL5232B 5.
6V
1
2
+5VSB
R1H8
NC/0 1/16W
R1E2
75
Ω
1/10W
RXD_IN
6
U107_C2
U107_B1
R1F1
22K 1/10W
+
C178
100uF/16V
VGA_SCL
C1E3
0.1uF
R1E5
75
Ω
1/10W
VCC3V3_A1
YPbPr2
T1961-F-X-X-1-061011
C1D7
NC/100pF
U107_B
R188
22K 1/10W
C165
NC/100pF
RGB_VSYNC
R
126
75
1
/10W
1
U106
24LC02BT/SN
1
2
3
4
5
6
7
8
A0
A1
A2
VSS SDA
SCL
WP
VCC
+
C125
47uF/6.3V
CN106
JACK
2
3
5
6
8
9
1
4
7
Q107
2SC2412KR
VGA_SDA
+
C129
47uF/6.3V
R187
22K 1/10W
R1F3
22K 1/10W
Z
D
141
M
LL52
32B 5.
6V
1
2
U107_C1
+
C127
47uF/6.3V
R189
22K 1/10W
ZD100
BAT54C
3
1
2
VGA5V
R1H9
0 1/10W
R
124
75
1
/10W
VGA
U107_C3
VCC3V3_A1
YPbPr1
Z
D
126
M
LL5
232B 5.
6V
1
2
R1J0
0 1/10W
1
TXD_OUT
6
+
C179
100uF/16V
+
C1A8
47uF/6.3V
R1J1
0 1/10W
+5VSB
R1E0
75
Ω
1/10W
FB123
120 OHM
1
2
RGB_HSYNC
U107_B
U107_R
R1
H
3
2.
7K
1/
10
W
C164
NC/100pF
1
R186
22K 1/10W
ZD124
BAV99
3
1
2
Z
D
121
M
LL5232B 5.
6V
1
2
R1
J5
4.
7K
1/
10W
+
C1A4
47uF/16V
RGB_YPBPR_SEL 4
YPbPr1_Pr
YPbPr2_Pb
U107_A3
U107_B2
U107_B1
ZD130
BAV99
3
1
2
AV SW For HD Signal
VGA_R
U107_R
Y PbPr_SEL 3
ZD122
BAV99
3
1
2
R194
22K 1/10W
GREEN_Y 12
R127
NC/ 0 1/16W
C170
0.1uF
R192
22K 1/10W
R196
22K 1/10W
RED
+5VSB
RGB_VSYNC
RED_Pr
+5VSB
Pb1_IN
C1D9
NC/100pF
+
C1A9
47uF/6.3V
Q108
2SC2412KR
U107_B3
FB121
120 OHM
1
2
YPbPr2
(STB)
R1
97
1.
5K
1
/10W
ZD132
BAV99
3
1
2
RED_Pr 12
VGA_G
Y PbPr2_Y
R1
J4
3.
3K
1/
10
W
FB122
120 OHM
1
2
ZD123
BAV99
3
1
2
R1
J7
4.
7K
1/
10W
YPbPr2_Pr
R1
H
2
2.
7K
1
/10W
C1E0
NC/100pF
U107_B3
VCC3V3_A1
+5VSB
+
C1A7
47uF/6.3V
R191
22K 1/10W
R1E4
75
Ω
1/10W
R1H6
100 1/10W
+5VSB
RGB_YPBPR_SEL
R1E1
75
Ω
1/10W
FB131
120 OHM
1
2
RGB_HSYNC
BLUE_Pb 12
R198
1.5K 1/10W
VCC3V3_A1
U107_C1
BLUE
Y PbPr1_Pb
R123
NC/ 0 1/16W
ZD131
BAV99
3
1
2
U107_A1
+
C177
100uF/16V
R1F6
22K 1/10W
+
C1B0
47uF/6.3V
0
R195
22K 1/10W
C1D8
NC/100pF
R1H4
100 1/10W
Pr2_IN
YPbPr1
(STB)
U107_A2
FB129
600OHM
1
2
U107
FSAV433MTCX_NL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1B1
1B2
1B3
GND
2B1
2B2
2B3
GND
3B1
3B2
3B3
GND
3A
GND
2A
GND
A1
S2
S1
VCC
R185
22K 1/10W
U107_A3
R1F2
22K 1/10W
R1F5
22K 1/10W
1
VCC3V3_A1
VGA_SCL
YPbPr2_Y
Z
D
125
M
LL523
2B 5.
6V
1
2
Z
D
140
M
LL5232
B 5.
6V
1
2
FB119
120 OHM
1
2
ZD128
BAV99
3
1
2
GREEN
C1E4
330pF
U107_C3
R1E3
75
Ω
1/10W
R1H7 NC/0 1/16W
YPbPr_SEL
VGA5V
VCC3_3
GREEN_Y
Pr1_IN
Y PbPr1_Pr
VGA_SDA
U107_A1
VGA_B
U107_C2
Y PbPr1_Y
BLU
VCC3V3_A1
VGA_B
Y PbPr2_Pb
R
125
75
1
/10W
RGB_YPBPR_SEL
VGA_G
Z
D
138
M
LL
5232B 5.
6V
1
2
+
C1A5
47uF/6.3V
YPbPr1_Pb
FB130
120 OHM
1
2
Z
D
120
M
LL5232B 5.
6V
1
2
R1
J8
3.
3K
1/
10W
Summary of Contents for Norcent LT3725
Page 4: ...37 LCD TV Color Monitor Norcent LT3725 4 1 General Specifications ...
Page 6: ...37 LCD TV Color Monitor Norcent LT3725 6 2 2 Front Panel Control Knobs ...
Page 7: ...37 LCD TV Color Monitor Norcent LT3725 7 2 3 OSD Operations ...
Page 8: ...37 LCD TV Color Monitor Norcent LT3725 8 ...
Page 9: ...37 LCD TV Color Monitor Norcent LT3725 9 ...
Page 10: ...37 LCD TV Color Monitor Norcent LT3725 10 ...
Page 11: ...37 LCD TV Color Monitor Norcent LT3725 11 ...
Page 12: ...37 LCD TV Color Monitor Norcent LT3725 12 ...
Page 13: ...37 LCD TV Color Monitor Norcent LT3725 13 ...
Page 14: ...37 LCD TV Color Monitor Norcent LT3725 14 2 4 How to Connect ...
Page 15: ...37 LCD TV Color Monitor Norcent LT3725 15 ...
Page 19: ...37 LCD TV Color Monitor Norcent LT3725 19 Remove the boards Remove the screws Remarked in red ...
Page 20: ...37 LCD TV Color Monitor Norcent LT3725 20 Remove main frame Remove the screws remarked in red ...
Page 21: ...37 LCD TV Color Monitor Norcent LT3725 21 Remove the bezel Remove the screws remarked in red ...
Page 26: ...37 LCD TV Color Monitor Norcent LT3725 26 7 PCB Layout 7 1 Main Board ...
Page 27: ...37 LCD TV Color Monitor Norcent LT3725 27 ...
Page 28: ...37 LCD TV Color Monitor Norcent LT3725 28 7 2 Power Board ...
Page 29: ...37 LCD TV Color Monitor Norcent LT3725 29 7 3 Key Board ...
Page 30: ...37 LCD TV Color Monitor Norcent LT3725 30 8 Block Diagram 8 1 Main board ...
Page 53: ......
Page 54: ...37 LCD TV Color Monitor Norcent LT3725 54 10 Exploded View ...