Schematic Diagram; Main Board - Dell E156FPc Service Manual

7. Schematic Diagram

7.1 Main Board

VGA_5V
D407
BAT54C
R452
C444
0.1uF/16V
GND
U404
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
GND SDA
M24C02WMN6
GND
D412
EDID_WP
EDID_WP
(3)
D402
NC 1
+3.3V_VDD
3 SPI_3V3
2
Pins 6/7/8 are R/G/B
return lines resp.
(3)
R450
DDC_SDA_VGA
DDC_SDA_A R453
R451 220 1/16W
HS_in
VS_IN
R454
220 1/16W
D411
DDC_SCL_VGA
(3)
GND
R455
220 1/16W D409
D408
LL5232B 5.6V 5%
LL5232B 5.6V 5%
+5V +5V
C448
C447 NC
NC
SPI_3V3 GND GND
D403 D404
BAV99 BAV99
VGA_5V
CN405
DB15
11 1 Rin
6
12 2 Gin
7
13 3 Bin
8
14 4
9 R439
15 5 R438
10 75 1/16W
R445
GND 220 1/16W
D406 D410
LL5232B 5.6V 5% LL5232B 5.6V 5%
GND GND
R446 220 1/16W
R447 220 1/16W
R448 R449
2.2K 1/16W 2.2K 1/16W
GND
Title
Size
Date:
27
+5V
C439
0.1uF/16V
GND
D405
BAV99
(10 mil, ┰キ︽絬)
FB410
1 2 R434 C432
60 OHM 75 1/16W
R441 C436
100 1/16W
FB411
1 2 R435 C433
60 OHM 75 1/16W
R442 C437
100 1/16W
FB412
1 2 R436 C434
60 OHM 75 1/16W
R443 C438
100 1/16W
R440
75-ohm terminating resistor
very close to the VGA
conn.
+3.3V_VDD
GND
R444
10K
VGA_PLUG
(8 mil)
C442 C443
NC NC
Input Connectors
Document Number
A
Wednesday, June 29, 2005 Sheet
Dell E156FPc
0.047uF
RED+ (3)
0.047uF
RED- (3)
0.047uF
GREEN+(3)
0.047uF
GREEN- (3)
0.047uF
BLUE+ (3)
0.047uF
BLUE- (3)
1/16W
CABLE_DET (3)
VS (3)
HS (3)
Rev
D
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