– 38 –
Pin No.
Pin name
I/O
Description
51
AVREF
I
A/D converter reference voltage input.
52
AV
DD
–
A/D converter power supply terminal.
53
AM3 MNT
I
AC adaptor or EXT battery detection input.
L : EXT battery
54
TEMP
I
Temp meter (IC803) input.
55
KEY3
I
PLAY/REC key input.
56
KEY4
I
Key input.
57
KEY0
I
Key input.
58
KEY1
I
Key input.
59
UNREG MNT
I
UNREG voltage monitor.
60
LIP MNT
I
Voltage monitor for lithium battery.
61
FG IN
I
FG input from motor driver (IC701).
62
SLA
I
63
SLB
I
JOG dial signal input.
64
INT SW
I
INITIAL switch input.
65
PACK IN
I
MEDIA switch input.
66
JACKDET
I
Input jack detection input.
67
OPT DET
I
Detecting input an optical input.
68
MIC DET
I
MIC jack detection.
69
XLAT
O
Latch output.
70
KEY ON
O
TRACK MARK jack input.
71
ST1 A
O
72
ST2 A
O
Stepping motor control signal output.
73
––––
–
Not used (Open).
74
––––
–
Not used (Open).
75
DQSY
I
Subcode Q sync (SCOR) of digital in U-bit CD format from IC503.
76
T COUNT
I
Traverse count signal input.
77
SDI1
I
Serial data input.
78
SDO1
O
Serial data output.
79
SCK1
O
Serial clock output.
80
SQSY
I
SUB-Q/ADIP SYNC input.
81
BEEP
O
BEEP sound output control.
H : BEEP sound output
82
XLIP DET
I
This is at “L” level when using the lithium battery or with no sensor switch input.
83
REFLCT
I
CD/MO discrimination switch.
84
TEX
–
Not used (Fixed at “L”)
85
XT
–
Not used (Open).
86
V
SS
–
Ground.
87
V
DD
–
Power supply pin (+2.8V).
88
NC
–
Not used (Fixed at “H”)
89
XCS ADA
I
Chip select input.
90
XPD ADA
O
D/A converter power down detect during recording. H : Power down
91
ST1B
O
92
ST2B
O
Stepping motor control signal output.
93
A MUTE
O
Analog mute control. L : Mute
94
OPT CONT
O
Power supply control output for an optical input.
95
CS EVR
O
96
CS NV
O
Chip select output.
97
SCK2
O
Serial clock output.
98
–––––––
O
HF module control output. (Not used : open)
99
SDO2
O
Serial data output.
100
XLIP
O
Charge control.
H : Charge
Summary of Contents for MZ-R50 Analog PCLink
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