Read Sony HCD-RV660D / HCD-RV990D Service Manual online
22
HCD-RV660D/RV990D
Pin No.
Pin Name
I/O
Pin Description
61
VSS
—
Ground
62, 63
HCS0, HCS1
I
Not used (Open)
64
VDD
—
Power supply pin (+3.2 V)
65
DASP
I/O
Not used (Fixed at H)
66 to 69
MDB0 to MDB3
I/O
Two-way data bus signal input from/output to 16Mbit D-RAM IC.
70
VSS
—
Ground
71
MDB4
I/O
Two-way data bus signal input from/output to 16Mbit D-RAM IC.
72
VDD5V
—
Power supply pin (+5 V)
73 to 75
MDB5 to MDB7
I/O
Two-way data bus signal input from/output to 16Mbit D-RAM IC.
76
XMWR
O
Write enable signal output to 16Mbit D-RAM IC.
77
VDD
—
Power supply pin (+3.2 V)
78
XRAS
O
Row address strobe signal output to 16Mbit D-RAM IC.
79, 80
MA0, MA1
O
Address signal output to 16Mbit D-RAM IC.
81
VSS
—
Ground
82 to 87
MA2 to MA7
O
Address signal output to 16Mbit D-RAM IC.
88
VDD
—
Power supply pin (+3.2 V)
89
MA8
O
Address signal output to 16Mbit D-RAM IC.
90
VSS
—
Ground
91
MA9/mnt0
O
Address signal output to 16Mbit D-RAM IC.
92
MA10/mnt1
O
EEPROM ready signal output to mechanism control IC.
93
MA11/mnt2
O
Address signal output to 16Mbit D-RAM IC.
94
XMOE
O
Output enable signal output to 16Mbit D-RAM IC.
95
XCAS
O
Column address strobe signal output to 16Mbit D-RAM IC.
96, 97
MDB8, MDB9
I/O
Two-way data bus signal input from/output to 16Mbit D-RAM IC.
98
VSS
—
Ground
99
MDBA
I/O
Two-way data bus signal input from/output to 16Mbit D-RAM IC.
100
VDD
—
Power supply pin (+3.2 V)
101, 102
MDBB, MDBC
I/O
Two-way data bus signal input from/output to 16Mbit D-RAM IC.
103
VDD5V
—
Power supply pin (+5 V)
104 to 106
MDBD to MDBF
I/O
Two-way data bus signal input from/output to 16Mbit D-RAM IC.
107
GFS
O
Guard frame sync signal output to mechanism control IC.
108
VSS
—
Ground
109
APE0
O
Absolute phase error signal output
110
VDD
—
Power supply pin (+3.2 V)
111
DASY0
O
RF binary signal output
112
GNDA5
—
Ground
113, 114
ASF1, ASF2
O
Filter connected pin for selection the constant asymmetry compensation.
115
DASY1
I
Analog signal input after integrated from the RF binary signal.
116
RFDCC
I
Input pin for adjusting DC cut high-pass filter for RF signal.
117
RFIN
I
RF signal input from RS-232C. (for check)
118, 119
VCCA5, VCCA4
—
Power supply pin (+3.2 V)
120
VCOR1
I
VCO oscillating range setting resistor connected
121
VCOIN
I
VCO input
122, 123
GNDA4, GNDA3
—
Ground
124
LPF5
O
Inverted signal output to operation amplifier from PLL loop filter.
125
VC1
I
Middle point voltage (+1.65 V) input
126, 127
LPF1, LPF2
I
Inverted signal input from operation amplifier from PLL loop filter.
128, 129
VCCA3, VCCA2
—
Power supply pin (+3.2 V)
130
PD0
O
Signal output to charge pump for phase comparator.
131
PDHVCC
O
Middle point voltage output to RF PLL.
132
FDO
O
Signal output to charge pump for frequency comparator.
133, 134
GNDA2, GNDA1
—
Ground
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