Samsung 2493HM Service Manual page 34

7. Schematic Diagram
7-2-2 DVI, HDMI input Block
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+3.3V_LIVE
HDMI_INPUT
MGND5 MGND3
1
2 3
2 FT101
1 4
3
4
5 2 FT102 3
7 1 4
6
8 2 FT103 3
9 1 4
10
11 2 FT104 3
13 1 4
12
14
15
16
17
19
18
R140
MGND4 MGND2 1Kohm
SP06-14555-02
CN703
+5V_DDC_H
ZD110
BZX84C5V6LT1
R102
4.7Kohm
R131
1Kohm
1/10W
C
Q100
B
HDMI_HPD
2SC2412K-Q
E
SPEC_STRESS_1
DVI_INPUT
CN102
74320-4006
MGND1
1
9
17
2
10
18
3
11
19
4
12
20
5
13
21
6
14
22
7
15
23
8
16
24
MGND2
R161 1Kohm
HDCP_CONTROL XREF
B
7-4
D105 D106 D107 D108 D109 D110 D111 D112
R132 10ohm
R130 10ohm
R133 10ohm
R134 10ohm
R135 10ohm
R137 10ohm
R138 10ohm
R139 10ohm
10Kohm
R141
+5V_DDC_H
+5V_DDC
SDS7000
D129
R136
SDS7000
47Kohm
D130
ZD111
BZX84C5V6LT1
+3.3V_LIVE
22ohm R142
22ohm
R143
22ohm
R144
22ohm
R145
22ohm
R148
22ohm
R149
22ohm
R150
22ohm
R151
+5V_DDC_D
+3.3V_LIVE
R154
100ohm
R153
10Kohm
XREF
R155
1Kohm
D133
C Q103
2SC2412K-Q
E DDC_SCL_DVI
SPEC_STRESS_1
DDC_SDA_DVI
DDC_SCL_HDMI
DDC_SCL_DVI
DDC_SDA_HDMI
HDMI_RX2+
DDC_SDA_DVI
HDMI_RX2-
25V
100nF
HDMI_RX1+
HDMI_RXC-
HDMI_RX1-
HDMI_RXC+
HDMI_RX0-
HDMI_RX0+
HDMI_RX0+
HDMI_RX0-
HDMI_RX1-
HDMI_RX1+
HDMI_RXC+
HDMI_RX2-
HDMI_RXC-
HDMI_RX2+
25V 100nF
DVI_RXC-
DVI_RXC+
DDC_SCL_HDMI
DVI_RX0-
DDC_SDA_HDMI
DVI_RX0+
DVI_RX1-
CHK_HDMI DVI_RX1+
DVI_RX2-
DVI_RX2+
HDMI input
TP_DDCH_GND
XREF
DVI_RX2+
XREF
DVI_RX2-
XREF
DVI_RX1+
XREF
DVI_RX1-
XREF
DVI_RX0+
XREF
DVI_RX0-
XREF
DVI_RXC+
XREF
DVI_RXC-
TP_DDCD_GND
CHK_DVI
DVI input
+5V_DDC
BD1004
25V
100nF
C1141
C1148
25V
GND CP
100nF
25 24
1B2 /EN
26 23
1B1 VDD50
27 22 SEL_HDMI
OB2 IN
28 21
DDC_SCL_DOUT
0B1 A1
29 20
C1125 GND GND
30 19
DDC_SDA_DOUT
VDD33 A0
31 18
D3-B GND C1147
32 17 25V
R1228
D3+B CP
100nF
33 16
1.5Kohm
D2-B GND C1146
25V 100nF
34 15
D2+B VDD33
R1145 0ohm
35 14
D1-B CP
1/10W 0ohm
36 13 R277
RXC-
D1+B D3-
R276 0ohm
37 12
D0-B D3+ RXC+
R275 0ohm
38 11
RX0-
D0+B D2- +3.3V_LIVE
C1124 R274 0ohm
39 10
RX0+
VDD33 D2+
40 9
C1144
D3-A SEL 25V
41 8
100nF R1227
D3+A VDD33
42 7 R273 0ohm
D2-A D1- RX1- 1.8Kohm
43 6 R272 0ohm
D2+A D1+ RX1+
0.6mm
44 5 R271 0ohm
D1-A D0- RX2-
45 4 R269 0ohm
D1+A D0+ RX2+
46 3
D0-A CP
47 2 25V
D0+A VDD33 C1143
100nF
48 1
PERICOM
IC11
+3.3V_LIVE
BD1005
25V
100nF
C1142
+5V_DDC
1 8 R162 R163
R152 R147
A0 VCC TP_DDCH_WP
0ohm 0ohm
2 7 1
DDC_WP
A1 WP TP_DDCH_SCL 1/10W 4.7Kohm 4.7Kohm 1/10W
3 6 1
DDC_SCL_HDMI
A2 SCL TP_DDCH_SDA
4 5 1
DDC_SDA_HDMI
VSS SDA
R156 R165
0ohm 0ohm
IC105 1/10W 1/10W
24LC02B-E/SN
C131
100nF
16V
+5V_DDC
1 8
R178 R179
A0 VCC
1 TP_DDCD_WP
2 7 XREF
10Kohm 10Kohm
A1 WP R181 DDC_WP
3 6 1 TP_DDCD_SCL
100ohm
A2 SCL
R182
4 5 1 TP_DDCD_SDA
100ohm
VSS SDA
IC101
24LC02B-E/SN
C132
100nF
16V
+5V_DDC
R1229 R1230
4.7Kohm 4.7Kohm
DDC_SCL_DOUT
DDC_SDA_DOUT
HDMI/DVI Switch
DDC_SCL_DVI
DDC_SDA_DVI