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Monitor
Q7C3
Service manual
BenQ Q7C3 Service Manual page 53
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5
D
LED_BLU
LED_ORG
L5
240 OHM
KEY_INC
L6
240 OHM
ENTER
L7
240 OHM
EXIT
L8
240 OHM
KEY_DEC
L9
240 OHM
PW_SW
L10
240 OHM
I-KEY
C
+5V
V33
R603
R604
0
0 (OPEN)
R0805
R0805
B
C81
0.1U K
U7
GND
D[15:0]
D0
3
2
D1
Q1
D1
4
5
D2
Q2
D2
7
6
D3
Q3
D3
8
9
D4
Q4
D4
13
12
D5
Q5
D5
14
15
D6
Q6
D6
17
16
D7
Q7
D7
18
19
D8
Q8
11
CS1n
CLK
1
RESETn
CLR
74LVC273
A
GND
5
4
R602
100
R601
100
1K
R61
R62 1K
R63 1K
R64 1K
C72
C73
C74
C75
100P
100P
100P
100P
50V J
50V J
50V J
50V J
R68
R69
4.7K
ENTER
KEY_DEC
KEY_INC
EXIT
I-KEY
PW_SW
D-SUB_CABLE_DETECT
LCD_ON
CS0n
LED_BLU
Power_OFF
LED_ORG
R76
BL_ON
0
VOL_ON
RS232_EN
ADC_PW_ON
4
3
TP26
TP27
TP28
TP29
TP30
TP31
R65 1K
TP32
R66 1K
TP33
C76
C77
100P
100P
C78
50V J
50V J
0.1U K
R70
R71
R72
R73
R74
R75
4.7K
4.7K
4.7K
4.7K
4.7K
4.7K
2
1A1
4
1A2
6
1A3
8
1A4
11
2A1
13
2A2
15
2A3
17
2A4
1
OE1
19
OE2
R77
O PEN
3
2
CON1
1
2
3
4
5
6
7
8
9
2060091109
C79
0.1U K
R67
0
GND_SIGNAL
V33
GND
GND_SIGNAL
C80
0.1U K
GND
U8
D0
18
1Y1
D1
D[15:0]
16
1Y2
D2
14
1Y3
D3
12
1Y4
D4
9
2Y1
D5
7
2Y2
D6
5
2Y3
D7
3
2Y4
74LCX244
Benq Corporation
Project Code
99.L9072.001
GND
Title
Size
PCB P/N
<Size>
Tuesday, June 03, 2003
Date:
Prepared By
ANGEL HU
2
1
Model Name
OEM/ODM Model Name
Q7C3-LG
NA
INTERFACE BOARD
PCB Rev.
Document Number
R ev.
0
48.L9001.S21
99.L9072.000-C3-304-005
S21
Sheet
6
o f
7
Reviewed By
Approved By
DAVEN WU
TOM LONG
1
D
C
B
A
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