Video Board - Sony HCD-V4800 Service Manual

VIDEO BOARD IC701 HD6433032SK12F (CD MECHANISM CONTROLLER)
Pin No. Pin Name
1 CMD0
2 CMD1
3 CMD2
4 CMD3
5 SACK
6 QINT
7 VDAC-XLAT
8 DF-XLAT
9 P90/TXD
10 SUBQ
11 SQCK
12 VSS
13 D0
14 D1
15 D2
16 D3
17 D4
18 D5
19 D6
20 D7
21 VCC
22 A0
23 A1
24 A2
25 A3
26 A4
27 A5
28 A6
29 A7
30 VSS
31 A8
32 A9
33 A10
34 A11
35 A12
36 A13
37 A14
38 A15
39 A16
40 A17
41 A18
42 A19
43 WAIT
44 MD0
45 MD1
Φ
46
I/O
I/O
I/O
Two-way data bus with the IIC interface controller (IC901)
I/O
I/O
O
Data acknowledge output to the IIC interface controller (IC901)
I
Interrupt status input from the IIC interface controller (IC901)
O
Serial data latch pulse output to the video D/A converter (IC401)
O
Serial data latch pulse output to the D/A converter/digital filter (IC101)
O
Transmit data output terminal Not used (open)
I Sub-code Q data signal input from the CXD2545Q (IC101)
O
Sub-code Q data transfer clock signal output to the CXD2545Q (IC101)
—
Ground terminal
I/O
I/O
I/O
I/O
Two-way data bus with the S-RAM (IC751)
I/O
I/O
I/O
I/O
—
Power supply terminal (+5V)
O
O
Address signal output to the MPEG audio/video decoder (IC201) and S-RAM (IC751)
O
O
O
O
Address signal output to the S-RAM (IC751)
O
O
—
Ground terminal
O
O
O Address signal output to the S-RAM (IC751)
O
O
O
O
Address signal output terminal Not used (open)
O
O
O
Address signal output terminal Used for chip enable signal output to the S-RAM (IC751)
O
O
Address signal output terminal Not used (open)
I
Wait signal input from the MPEG audio/video decoder (IC201)
I Mode selection terminal (fixed at "H")
I
Mode selection terminal (fixed at "L")
O
System clock signal output terminal Not used (open)
Function
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