Ddc Interface Peripheral Circuit - NEC LCD1550X Service Manual

1.5

DDC interface peripheral circuit

A5V or DVI
X9116WM-2.7
IC106
1 8
2
7
3
6
4
5
+
R2
-
R1
+
-
NJM12903M
IC112
M3_3V M3_3V
DDC interface peripheral circuit
M24C02WMN6T
IC104
1
2
3
4
Dec : DVI-I (for Digital Ch)
M24C02WMN6T
7 IC105
1
2
3
1
4
Inc : DVI-I (for Analog Ch)
M3_3V
A2_ANA
28
SCL
A2_DIG SDA
21
/WP
U/D
67
66 /INC
CABLE
/CS
1
IC102
(MPU)
M30625
M24C02WMN6T
1
IC107
2
3
4
A5V or DVI
8
7
6
5
8
7
6
A5V or DVI
5
22
23
37
M3_3V
38
A5V or DSUB
A5V
8
7
6
5
1 - 24
A5V
J200
DVI-I connector
RX2- (RED)
1
RX2+ (RED)
2
SCL_DDC
6
SDA_DDC
7
14
+5VDC
HTPLUG
16
A5V or DVI
A5V
J201
A5V or DSUB
D-Sub connector
+5VDC
9
SCL_DDC
15
SDA_DDC
12