22"LCD Color Monitor
Dell E228WFPc
33
7. Schematic Diagram
7.1 Main Board
GND
RXC-IN
RX1-IN
RX0-IN
R232
220
Ω
1/10W
R228
220
Ω
1/10W
SCL_IN
SDA_IN
ZD210
UDZS5.6B
C211
0.01uF
C212
0.01uF
C213
0.01uF
ZD211
UDZS5.6B
C215
0.01uF
C216
0.01uF
R229
75
Ω
1/10W
R223
75
Ω
1/10W
R220
75
Ω
1/10W
ADD 6/23
GND GND
GND
FB201
60 OHM
HOT_PLUG
R218
33K
Ω
1/10W
R214
10K
Ω
1/10W
R217
22K
Ω
1/10W
3
1
2
D209
BAV70
FB202
60 OHM
FB203
60 OHM
DDC_SDA_A
C217
22pF
R210
220
Ω
1/10W
DVI_HPD
DVI_5V
3
1
2
D208
BAV99
R237
220
Ω
1/10W
3
1
2
D202
BAV99
3
1
2
D201
BAV99
3
1
2
D205
BAV99
R203
10
Ω
1/10W
R205
10
Ω
1/10W
R207
10
Ω
1/10W
R204
10
Ω
1/10W
R206
10
Ω
1/10W
VGA_PLUG
C218
22pF
3
1
2
D206
BAV99
R208
10
Ω
1/10W
R209
10
Ω
1/10W
CABLE_DET
(3)
3
1
2
D203
BAV99
C201
1000pF/50V
GND
3
1
2
D207
BAV99
3
1
2
D204
BAV99
RX2-IN
ZD209
UDZS5.6B
GND
DVI_5V
Q201
2N7002E
75-ohm terminating resistor
very close to the VGA
conn.
3
1
2
D211
BAV99
3
1
2
D212
BAV99
3
1
2
D213
BAV99
SCL_IN
NC/NC/NC/E0/E0
1
NC/NC/E1/E1/E1
2
NC/E2/E2/E2/E2
3
VSS
4
SDA
5
SCL
6
WC
7
VCC
8
U201
M24C02-WMN6TP
(8 mil)
Pins 6/7/8 are R/G/B
return lines resp.
+5V
+5V
+5V
GND
(10 mil,
┰キ︽絬
)
GND
GND
3
2
3
1
2
D210
BAV70
1
+5V
NC/NC/NC/E0/E0
1
NC/NC/E1/E1/E1
2
NC/E2/E2/E2/E2
3
VSS
4
SDA
5
SCL
6
WC
7
VCC
8
U202
M24C02-WMN6TP
ZD201
UDZS5.6B
VS
(3)
HS
(3)
C262
0.001uF
C219
0.1uF 16V
R262
10K 1/10W 5%
GND
GND
R224
100
Ω
1/10W
R230
100
Ω
1/10W
R225
4.7K
Ω
1/10W
Q202
PMBS3904
GND
GND
R238
220
Ω
1/10W
R239
220
Ω
1/10W
1
2
3
4
5
6
7
8
17
18
19
20
21
22
23
24
9
11
13
15
10
12
14
16
C1
C5
C5
C2
C3
C4
CN201
JACK
HDCP_RST
(3)
GND
+5V
GND
GND
C221
0.1uF 16V
C222
0.1uF 16V
C210
0.01uF
R240
2.2K
Ω
1/10W
C214
0.1uF 16V
R241
2.2K
Ω
1/10W
DVI_HPD
R233
75
Ω
1/10W
GND
R201 10K
Ω
1/10W
GND
GND
VGA_5V
RED+
(3)
BLUE-
(3)
RED-
(3)
BLUE+ (3)
HOT_PLUG
GREEN+ (3)
GREEN-
(3)
GND
DVI_5V
GND
DDC_SCL_VGA
(3)
R211
10K
Ω
1/
10
W
DDC_SDA_VGA
(3)
ZD202
UDZS5.6B
DVI_EDID_WP (3)
ZD203
UDZS5.6B
FB204
430 OHM
+5V
R243
0
Ω
1/10W
R234
75
Ω
1/10W
GND
ZD204
UDZS5.6B
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
17
16
CN202
DB15
5V
VGA_5V
RX1-
(3)
RX2+
(3)
RX2-
(3)
RXC+
(3)
RX0+
(3)
RX1+
(3)
RXC-
(3)
RX0-
(3)
R212
4.
7K
Ω
1/
10
W
R235
75
Ω
1/10W
ZD212
UDZS5.6B
GND
R244
10K
Ω
1/10W
8/16
R242
4.7K
Ω
1/10W
ZD208
UDZS5.6B
VGA_PLUG
RX1+IN
RX1+IN
DDC_SCL_A
C209
0.1uF 16V
RX2+IN
RX0-IN
ZD207
UDZ
S
5.
6B
RX0+IN
RXC+IN
RXC-IN
+3.3V_VDD
DDC_SCL_DVI (3)
DDC_SDA_DVI (3)
SDA_IN
RX0+IN
GND
RXC+IN
R215
47R 1/10W
R216
47R 1/10W
R213
4.
7K
Ω
1/
10
W
R202
10
Ω
1/10W
HS_in
VS_IN
R226
4.
7K
Ω
1/
10
W
R227
4.7K
Ω
1/10W
R222
100
Ω
1/10W
C220
0.1uF 16V
Summary of Contents for E228WFPc
Page 40: ...22 LCD Color Monitor Dell E228WFPc 40 8 PCB Layout 8 1 Main Board ...
Page 41: ...22 LCD Color Monitor Dell E228WFPc 41 ...
Page 42: ...22 LCD Color Monitor Dell E228WFPc 42 8 2 Power Board ...
Page 43: ...22 LCD Color Monitor Dell E228WFPc 43 8 3 Key Board ...
Page 55: ...22 LCD Color Monitor Dell E228WFPc 55 12 Exploded View ...
Page 56: ...22 LCD Color Monitor Dell E228WFPc 56 ...
Page 57: ...22 LCD Color Monitor Dell E228WFPc 57 ...
Page 58: ...22 LCD Color Monitor Dell E228WFPc 58 ...
Page 59: ...22 LCD Color Monitor Dell E228WFPc 59 ...