Hitachi CML174SXW2 Service Manual page 48

C1
DDCA-5V
0.1u
GREEN BLUE
1 6
2 5
RE D 3 4 PC-DETECT
ZD1
DALC208SC6
CHECK 1117 3904 & RESET IC
PC-DETECT 4
CN1
RED
1
9
GREEN
2
10
3 BLUE
11
4
DDC-SDA
12
5
IN-H
13
R-
6
IN-V
14
GRN-
7
DDC-SCL
15
BLU-
8
15-pin DSUB connector
PITCH
2.00mm
Video
connector
VCC
PC-5C
VCC 2,4,7
D15 D1
EC10QS04 EC10QS04
DDCA-5V
C16
R14
U2
4.7K
1 8
NC VCC
2 7
0.1u
NC VCLK
3 6
NC SCK
4 5
VSS SDA
24LC21
No. 0422
FB1
BLUE
0
R1
75 1%#
BLU-
FB4
GREEN
0
R2
75 1%#
GRN-
FB7
RED
0
R3
75 1%#
R-
R5
IN-H
IN-V
ZD2
R7
2.2K
ZD5V6
33
R10
R17 R12
2.2K
33
R13 NC
R15
4.7K
R18 33
R19 33
ZD4
ZD5V6
VL-720 MAIN / DISPLAY CONTROL BOARD - SHEET 1
FB2
0
C4
75 1%
FB3
47
FB5
0
C7
75 1%
FB6
47
FB8
0
C10
75 1%
FB9
47
R4 0#
U1A U1B
33
1 2 3
74L VC14 74L VC14
C12 Optional
33P#
R8 0#
U1E U1D
11 10 9
C14
74LVC14 74L VC14
33P#
VCC
R123 4.7K
R55 100#
R56 100#
U12
DDC-SCL 3 2
1B 1A
DDC-SDA
6 5
2B 2A
8 9
3B 3A
11 12
4B 4A
1
ZD5
1OE
4
2OE
ZD5V6 14 10
VCC 3OE
7 13
GND 4OE
74CBT3126
R125 0#
C2 0.01u/NC
C3 0.01u
C5 0.01u
C6 0.01u
C8 0.01u
C9 0.01u
C11 0.01u
R6 100
4
C13
22P
R11 100
8
C15
33P#
5
74L VC14
3,4 VBLCRL 13
74L VC14
DDCA-SCL 4
R20
DDCA-SDA 4
ISP-EN 4
R124
150#
SOG 3
BLUE+ 3
12 MILS
BLUE- 3
GREEN+ 3
GRE EN- 3
RED+ 3
RED- 3
HSY NC 3
VDD
VDD 2,3,7
C17
0.1u
VSYNC 3
U1 C
6
U1F
R16 4.7K#
12
BLT_ON 7
4.7K