Read Sony MDS-NT1 Service Manual online
53
MDS-NT1
Pin No.
Pin Name
I/O
Description
41
A11
O
Address signal output to the external D-RAM Not used
42 to 45
D0 to D3
I/O
Two-way data bus with the D-RAM
46
XCAS
O
Column address strobe signal output to the D-RAM “L” active
47
XRAS
O
Row address strobe signal output to the D-RAM “L” active
48 to 56
A00 to A02,
A05 to A10
O
Address signal output to the D-RAM
57
VDC2
—
Power supply terminal (+2.5V) (for core)
58
VSC2
—
Ground terminal (for core)
59, 60
A03, A04
O
Address signal output to the D-RAM
61
DRVDD1
—
Power supply terminal (+3.3V) (for D-RAM interface)
62
DRVSS1
—
Ground terminal (for D-RAM interface)
63, 64
TEST0, TEST1
I
Not used
65
TEST2
O
Not used
66
AVD1
—
Power supply terminal (+3.3V) (analog system)
67
ASYO
O
Playback EFM full-swing output
68
ASYI
I
Playback EFM comparator slice voltage input
69
BIAS
I
Playback EFM comparator bias current input
70
RFI
I
Playback EFM RF signal input from the RF amplifier
71
AVS1
—
Ground terminal (analog system)
72
PCO
O
Phase comparison output for master clock of the recording/playback EFM master PLL
73
FILI
I
Filter input for master clock of the recording/playback EFM master PLL
74
FILO
O
Filter output for master clock of the recording/playback EFM master PLL
75
CLTV
I
Internal VCO control voltage input of the recording/playback EFM master PLL
76
PEAK
I
Light amount signal (RF/ABCD) peak hold input from the RF amplifier
77
BOTM
I
Light amount signal (RF/ABCD) bottom hold input from the RF amplifier
78
ABCD
I
Light amount signal (ABCD) input from the RF amplifier
79
FE
I
Focus error signal input from the RF amplifier
80
AUX1
I
Auxiliary signal (I
3
signal/temperature signal) input from the RF amplifier
81
VC
I
Middle point voltage (+1.65V) input from the RF amplifier
82
ADIO
O
Output terminal for the test
83
ADRT
I
A/D converter operational range upper limit voltage input terminal (fixed at “H” in this set)
84
ADRB
I
A/D converter operational range lower limit voltage input terminal (fixed at “L” in this set)
85
SE
I
Sled error signal input from the RF amplifier
86
TE
I
Tracking error signal input from the RF amplifier
87
AVD2
—
Power supply terminal (+3.3V) (analog system)
88
AVS2
—
Ground terminal (analog system)
89
DCHG
I
Connected to the +3.3V power supply
90
APC
I
Error signal input terminal for laser digital automatic power control Not used
91
ADFG
I
ADIP duplex FM signal (22.05 kHz
±
1 kHz) input from the RF amplifier
92
VDIO1
—
Power supply terminal (+3.3V) (for I/O)
93
VSIO1
—
Ground terminal (for I/O)
94
F0CN
O
Filter f0 control signal output to the RF amplifier
95
VDC3
—
Power supply terminal (+2.5V) (for core)
96
VSC3
—
Ground terminal (for core)
97
XLRF
O
Serial data latch pulse signal output to the RF amplifier
98
CKRF
O
Serial data transfer clock signal output to the RF amplifier
99
DTRF
O
Writing serial data output to the RF amplifier
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