Norcent Norcent LT2725, Service Manual, Page: 44 / 123

27’’ LCD TV Color Monitor Norcent LT2725
44
YPbPr2_Y
ZD131
BAV99
3
1 2
R195 2K
R1F2 2K
Z
D
126
M
LL5232B 5.
6V
1
2
YPbPr2_Pb
RGB_VSYNC
ZD129
BAV99
3
1 2
R192 2K
R1F5 2K
GREEN_Y 12
U107_B
U107_B3
FB123
120 OHM
1 2
YPbPr1
YPbPr2
FB131 120 OHM 1 2
R1H5
100 1/16W
+
C177
100uF/16V
ZD127
BAV99
3
1 2
VCC3_3
U107_B3
R194 2K
1
YPbPr1_Y
R
125
75
1/
16W
ZD122
BAV99
3
1 2
R191 2K
ZD100
BAT54C
3
1
2
U107_A3
U107_A3
R1J1
0 1/16W
R1H8
NC/0 1/16W
VGA5V
YPbPr1_Pr
VGA
YPbPr2_Pb
C165
NC/100pF
U107_C3
+
C1A7 47uF/6.3V
R172 NC/ 0 1/16W
U107_C2
R1E3
75 1/16W
1
R
124
75
1/
16W
VCC3V3_A1
+5VSB
YPbPr1_Pb
VGA_SDA
VCC3V3_A1
R1
H3
2.
7K
1/
16W
RED
U107_R
ZD123
BAV99
3
1 2
VGA_R
C1D9
NC/100pF
1
FB119
120 OHM
1 2
ZD124
BAV99
3
1 2
FB122
120 OHM
1 2
R1
H1
2.
7K
1/
16W
YPbPr2_Pr
R1F4 2K
VGA5V
U107_C1
VGA_R
Pb2_IN
R193 2K
FB124
120 OHM
1 2
D
Page 11 - YPbPr/RGB Input
A3
11 19 Wednesday, May 17, 2006
715T1961-
Title
Size Document Number Rev
Date: Sheet of
Q107
2SC2412K
RED_Pr
R1
J5
4.
7K
1/
16W
CN106
JACK
2
3
5
6
8
9
1 4 7
+
C125
47uF/6.3V
R1E4
75 1/16W
+5VSB
R1
J4
3.
3K
1/
10W
R1H7 NC/0 1/16W
AV SW For HD Signal
RGB_VSYNC
R1
H2
2.
7K
1/
16W
ZD128
BAV99
3
1 2
R1F1 2K
R1H9
0 1/16W
+
C1A8 47uF/6.3V
R196 2K
U107_C1
+
C1A6 47uF/6.3V
RXD_IN 6
FB129 600 OHM
1 2
RED
U107
FSAV433
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
R1E0
75 1/16W
U107_B
+
C179
100uF/16V
Pb1_IN
R1F6 2K
U107_B1
U107_C2
R1H4
100 1/16W R188 2K
+
C1B0 47uF/6.3V
VGA_SDA
R1E2
75 1/16W
C1E3
0.1uF
YPbPr2_Pr
U107_B2
GREEN_Y
TXD_OUT 6
VGA_G
C164
NC/100pF
+5VSB
U107_A1
R186 2K
YPbPr2
(STB)
VGA_G
C1D7
NC/100pF
C1D8
NC/100pF
C170
0.1uF
+5VSB
YPbPr1_Pr
VCC3V3_A1
VGA_B
R1E5
75 1/16W
Z
D
121
M
LL5232B 5.
6V
1
2
0
YPbPr2
C176
0.1uF
RGB_HSYNC
RGB_YPBPR_SEL
R1E1
75 1/16W
+
C1A5 47uF/6.3V
Z
D
120
M
LL5232B 5.
6V
1
2
R189 2K
+5VSB
RGB_YPBPR_SEL 4
+5VSB
U107_A2
Q109
2SC2412K
R
197
4.
7K
1/
16W
VCC3V3_A1
BLUE
R198
4.7K 1/16W
1
RGB_VSYNC 12,15
VGA_B
FB121
120 OHM
1 2
BLUE_Pb
R1H6
100 1/16W
U107_B1
R1
J6
3.
3K
1/
10W
R190 2K
+
C1A4
47uF/16V
YPbPr1
(STB)
VGA_SCL
YPbPr_SEL
YPbPr_SEL 3
U107_A2
+
C127 47uF/6.3V
R1
J7
4.
7K
1/
16W
U107_C3
U107_B2
FB130 120 OHM 1 2
R1
J8
3.
3K
1/
10W
RED_Pr 12
R185 2K
YPbPr2_Y
ZD132
BAV99
3
1 2
R1
J9
4.
7K
1/
16W
R187 2K
R1F3 2K
GREEN
RGB_YPBPR_SEL
VCC3V3_A1
Pr1_IN
+5VSB U107_R
FB120
120 OHM
1 2
Pr2_IN
U107_A1
VGA_SCL
YPbPr1_Y
R127 NC/ 0 1/16W
U107_G
R123 NC/ 0 1/16W
VCC3V3_A1
U107_G
BLU
BLUE_Pb 12
+
C178
100uF/16V
YPbPr1
+
C1A9 47uF/6.3V
Z
D
125
M
LL5232B 5.
6V
1
2
ZD130
BAV99
3
1 2
R1J0
0 1/16W
R
126
75
1/
16W
RGB_HSYNC 12,15
YPbPr1_Pb
U106
24LC02B 4
5 6
7
8
GN
D
SDA SCLK
VCLK
VCC
CN102
DB15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Q108
2SC2412K
+5VSB
RGB_HSYNC
GRN
+
C129 47uF/6.3V
C1E0
NC/100pF
0