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Dell E176FPc
28
7. Schematic Diagram
7.1 Main Board
DDC_SCL_VGA
(3)
BLUE- (3)
R448
2.2K 1/16W
GND
R434
75 1/16W
GND
DDC_SDA_VGA
(3)
R435
75 1/16W
C436
0.047uF
+5V
DDC_SDA_A
C443
NC
R441
100 1/16W
R439
75 1/16W
(10 mil,
┰キ︽絬
)
CN405
DB15
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
1716
R444
10K 1/16W
(8 mil)
R450
4.7K 1/16W
+5V
GREEN+(3)
GND
Pins 6/7/8 are R/G/B
return lines resp.
U404
M24C02WMN6
4
81
2
3
7
6
5
GND
VCCA0
A1
A2
WP
SCL
SDA
C432
0.047uF
R436
75 1/16W
R453
220 1/16W
GND
GND
R446 220 1/16W
D404
BAV99
3
1
2
+3.3V_VDD
BLUE+ (3)
FB410
60 OHM
1 2
D
Input Connectors
A
26Wednesday, June 29, 2005
Title
Size Document Number Rev
Date: Sheet
of
HS_in
D403
BAV99
3
1
2
C442
NC
R449
2.2K 1/16W
R440
75 1/16W
GND
HS (3)
R443
100 1/16W
FB411
60 OHM
1 2 C433
0.047uF
D407
BAT54C
3
1
2
RED+ (3)
C448
NC
R452
4.7K 1/16W
GND
R447 220 1/16W
R438
75 1/16W
EDID_WP
(3)
C439
0.1uF/16V
GND
R442
100 1/16W
RED- (3)
Gin
GND
GND
C444
0.1uF/16V
EDID_WP
FB412
60 OHM
1 2
D408
LL5232B 5.6V 5%
SPI_3V3
D411
LL5232B 5.6V 5%
R451
4.7K 1/16W
CABLE_DET (3)
D409
LL5232B 5.6V 5%
Bin
GREEN- (3)
C434
0.047uF
VGA_5V
C437
0.047uF
C438
0.047uF
SPI_3V3
R445
220 1/16W
R454
220 1/16W
D402
NC
3
2
1
D405
BAV99
3
1
2
VGA_PLUG
75-ohm terminating resistor
very close to the VGA
conn.
VS (3)
GND
VS_IN
VGA_5V
+3.3V_VDD
Rin
D412
LL5232B 5.6V 5%
+5V
C447
NC
D410
LL5232B 5.6V 5%
D406
LL5232B 5.6V 5%
R455
220 1/16W