Dell E228WFPc - 7 Schematic Diagram; Main Board

22"LCD Color Monitor Dell E228WFPc
33
7. Schematic Diagram
7.1 Main Board
GND
RXC-IN
RX1-IN
RX0-IN
R232
220Ω 1/10W
R228 220Ω 1/10W
SCL_IN
SDA_IN
ZD210
UD ZS5.6B
C211
0.01uF
C212
0.01uF
C213
0.01uF
ZD211
UD ZS5.6B
C215
0.01uF
C216
0.01uF
R229
75Ω 1/10W
R223
75Ω 1/10W
R220
75Ω 1/10W
ADD 6/23
GND GND
GND
FB201
60 OHM
HOT_PLUG
R218 33KΩ 1/10W
R214
10KΩ 1/10W
R217 22KΩ 1/10W
3
1 2
D209
BAV70
FB202
60 OHM
FB203
60 OHM
DDC_SDA_A
C217
22pF
R210
220Ω 1/10W
DVI_HPD
DVI_5V
3
1 2
D208
BAV99
R237 220Ω 1/10W
3
1 2
D202
BAV99
3
1 2
D201
BAV99
3
1 2
D205
BAV99
R203 10Ω 1/10W
R205 10Ω 1/10W
R207 10Ω 1/10W
R204 10Ω 1/10W
R206 10Ω 1/10W
VGA_PLUG
C218
22pF
3
1 2
D206
BAV99
R208 10Ω 1/10W
R209 10Ω 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
M24C 02- W MN6TP
ZD201
UDZS5.6B
VS (3)
HS (3)
C262
0.001uF
C219
0.1uF 16V
R262
10K 1/10W 5%
GND GND
R224
100Ω 1/10W
R230
100Ω 1/10W
R225
4.7KΩ 1/10W
Q202
PMBS3904
GND
GND
R238 220Ω 1/10W
R239 220Ω 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
C5C5
C2
C3
C4
CN201
JACK
HDCP_RST (3)
GND
+5V
GND
GND
C221
0.1uF 16V
C222
0.1uF 16V
C210
0.01uF
R240
2.2KΩ 1/10W
C214
0.1uF 16V
R241
2.2KΩ 1/10W
DVI_HPD
R233
75Ω 1/10W
GND
R201 10KΩ 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
10KΩ 1/10W
DDC_SDA_VGA(3)
ZD202
UDZS5.6B
DVI_EDID_WP (3)
ZD203
UDZS5.6B
FB204
430 OHM
+5V
R243 0Ω 1/10W
R234
75Ω 1/10W
GND
ZD204
UDZS5.6B
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
1716
CN202
DB15
DVI_5V +5V
VGA_5V
RX1- (3)
RX2+ (3)
RX2- (3)
RXC+ (3)
RX0+ (3)
RX1+ (3)
RXC- (3)
RX0- (3)
R212
4.7KΩ 1/10W
R235
75Ω 1/10W
ZD212
UDZS5.6B
GND
R244
10KΩ 1/10W
8/16
R242
4.7KΩ 1/10W
ZD208
UDZS5.6B
VGA_PLUG
RX1+IN
RX1+IN
DDC_SCL_A
C209
0.1uF 16V
RX2+IN
RX0-IN
ZD207
UDZS5.6B
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
4.7KΩ 1/10W
R202 10Ω 1/10W
HS_in
VS_IN
R226
4.7KΩ 1/10W
R227
4.7KΩ 1/10W
R222
100Ω 1/10W
C220
0.1uF 16V