Sharp LC-37D90U Service Manual page 42

LC-37D90U
2.6. VHiTMDS341+-1Y (ASSY: IC1507)
3-TO-1 DVI/HDMI SWITCH
• Block Diagram [VHiTMDS341+-1Y (ASSY: IC1507)]
• Pin Function [VHiTMDS341+-1Y (ASSY: IC1507)]
Pin No. Pin name
6, 9, 12, 15 A11, A12, A13, A14
68, 71, 74, 77 A21, A22, A23, A24
49, 52, 55, 58 A31, A32, A33, A34
5, 8, 11, 14 B11, B12, B13, B14
67, 70, 73, 76 B21, B22, B23, B24
48, 51, 54, 57 B31, B32, B33, B34
4, 10, 16, 24, 30, GND
36, 37, 47, 53,
59, 65, 66, 72,
78
80 HPD1
62 HPD2
44 HPD3
40 HPD_SINK
1, 20, 41, 60 NC
42 OE
19 PRE
3 SCL1
64 SCL2
46 SCL3
38 SCL_SINK
2 SDA1
63 SDA2
45 SDA3
39 SDA_SINK
21, 22, 23 S1, S2, S3
7, 13, 17, 27, 33, VCC
43, 50, 56, 61,
69, 75, 79
18 VSADJ
34, 31, 28, 25 Y1, Y2, Y3, Y4
35, 32, 29, 26 Z1, Z2, Z3, Z4
I/O
I Port1 TMDS positive inputs.
I Port2 TMDS positive inputs.
I Port3 TMDS positive inputs.
I Port1 TMDS negative inputs.
I Port2 TMDS negative inputs.
I Port3 TMDS negative inputs.
--- Ground.
O Port1 hot plug detector output.
O Port2 hot plug detector output.
O Port3 hot plug detector output.
I Sink side hot plug detector input.
High: 5-V power signal asserted from source to sink and EDI Disready.
Low: No 5-V power signal asserted from source to sink, or EDID is not ready.
--- No connect.
I Output enable, active low.
I Output de-emphasis adjustment.
High: 3dB
Low: 0dB
I/O Port1 DDC bus clock line.
I/O Port2 DDC bus clock line.
I/O Port3 DDC bus clock line.
I/O Sink side DDC bus clock line.
I/O Port1 DDC bus data ine.
I/O Port2 DDC bus data ine.
I/O Port3 DDC bus data ine.
I/O Sink side DDC bus data line.
I Source selector input.
--- Power supply.
I TMDS compliant voltage swing control.
O TMDS positive outputs.
O TMDS negative outputs.
5 – 26
Pin Function