Read Sony HCD-V5500 / MHC-V5500 / MHC-V7700AV (serv.man2) Service Manual online
— 68 —
• IC901 IC INTERFACE (uPD780016YGF-012-3BA)/VIDEO board
Pin No.
1 to 8
9
10
11
12
13
14
15
16, 17
18
19 to 22
23
24
25 to 32
33
34
35
36
37
38, 39
40
41, 42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57 to 64
65
66
67
68
69, 70
71
72, 73
74 to 81
82 to 85
86 to 93
94 to 100
I/O
I
—
O
I
—
—
—
I
I
I
I
—
—
I
—
I/O
I/O
I/O
I/O
I
—
I
O
I
I
I
O
O
O
O
O
O
O
O
I
I
I
O
O
O
O
I
I
I
I
I
I
I
Description
Connected to ground
Connected to ground
X’ tall (5MHz)
X’ tall (5MHz)
Power supply +5V
Not used
Connected to +5V
System reset input
Not used (Fixed at “L”)
CD-BUS interrupt input
Not used (Fixed at “L”)
Power supply +5V
Power supply +5V
Connected to ground
Ground
Input/output terminal exchanging data bus 0 with mecha-con, (IC901)
Input/output terminal exchanging data bus 1 with mecha-con, (IC901)
Input/output terminal exchanging data bus 2 with mecha-con, (IC901)
Input/output terminal exchanging data bus 3 with mecha-con, (IC901)
Connected to ground
Ground
Connected to ground
Output command request to mecha-con. (IC701)
Input command acknowledge from mecha-con. (IC701)
Not used (Fixed at “L”)
Connected to ground
Serial data output (IC271, 301)
Serial clock output (IC271, 301)
Serial latch output to OSD (IC271)
Not used
Not used
Video CD section reset output
Not used
Not used
Serial data input from master control (IC701)
Serial clock input from master control (IC701)
Connected to ground
Not used
Not used
Not used
Chip select output to noise reduction (IC301)
Connected to ground
Ground
Connected to ground
Connected to ground
Connected to ground
Connected to ground
Connected to ground
Pin Name
P80 to P87
TEST
X2
X1
VDD
XT2
XT1
RESET
PO0, PO1
QINT
PO3 to PO6
VDD
AVDD
P10 to P17
AVSS
CMD0
CMD1
CMD2
CMD3
P24, P25
VSS
P26, P27
MREQ
SACK
CDGM
P93
MDATA
MCLK
OS-XLAT
G-XLAT
G-XRST
CD-XRST
CDPOW
DOUT
IIC-DATA
IIC-CLK
P40 to P47
NRON
LEVEL0
LEVEL1
NR-XCS
P54, P55
VSS
P56, P57
P60 to P67
P100 to P103
P30 to P37
P150 to P156
Click on the first or last page to see other HCD-V5500 / MHC-V5500 / MHC-V7700AV (serv.man2) service manuals if exist.