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– 97 –
Pin No.
Pin Name
I/O
Function
49
LDON
O
Laser diode ON signal output terminal
“H”:laser diode ON
50
MOD
O
51
LDIN
O
Loading-in signal output terminal Not used (open)
52
LDOUT
O
Loading-out signal output terminal Not used (open)
53
LD-LOW
O
Loading motor voltage control signal output to the loading motor driver Not used (open)
54
PROTECT
I
PROTECT switch (S683) detect signal input terminal “H”: protect
55
REFLECT
I
REFLECT switch (S682) detect signal input terminal “L”: high reflection rate disc, “H”: low reflec-
tion rate disc
56
PACK-IN
I
MD PACK IN switch detect signal input terminal Not used (fixed at “H”)
57
PACK-OUT
I
PACK OUT switch detect signal input terminal Not used (fixed at “H”)
58
CHUCK-IN
I
CHUCKING IN switch detect signal input terminal Not used (fixed at “H”)
59
LIMIT-IN
I
LIMIT-IN switch (S681) detect signal input terminal The optical pick-up is inner position when “L”
60
REC. P
I
REC POSITION switch detect signal input terminal Not used (fixed at “H”)
61
PB. P
I
PB POSITION switch detect signal input terminal Not used (fixed at “L”)
62
+3.3V
—
Power supply terminal (+3.3V)
63
—
Not used (fixed at “L”)
64
GND
—
Ground terminal
65 to 72
—
Not used (fixed at “L”)
73
HEAD SW UP
I
Over write head up switch (S6) detect signal input terminal “L”:active
74
HEAD SW DOWN
I
Over write head down switch (S7) detect signal input terminal “L”:active
75
HEAD UP
O
Over write head UP/DOWN motor (M905) control signal output terminal *1
76
HEAD DOWN
O
Over write head UP/DOWN motor (M905) control signal output terminal *1
77, 78
—
Not used (fixed at “L”)
79
SDA
I/O
Two-way data bus for the EEPROM (IC171)
80
SCL
O
Clock signal output to the EEPROM (IC171)
81
I
Not used (fixed at “L”)
82
I
Not used (fixed at “H”)
83
MODE
I
Input terminal for setting MD single or changer mode “L”:single mode, “H”:changer mode (fixed
at “H” in this set)
84, 85
I
Not used (fixed at “L”)
86
REC/PB
O
REC/PB status control signal output terminal Not used (pull down)
87
DOUTXMUTE
O
Mute control signal output terminal Not used (pull down)
88 to 90
I
Not used (fixed at “L”)
91
KEY0
—
Key signal input terminal
Not used (fixed at “H”)
92
KEY1
—
Key signal input terminal
Not used (fixed at “H”)
93
KEY2
—
Key signal input terminal
Not used (fixed at “H”)
94, 95
I
Not used (fixed at “L”)
96
AVSS
—
Ground terminal
97
I
Not used (fixed at “L”)
Laser modulation select signal output
Playback power: “L”, Stop: “H”,
Recording power:
0.5 sec
2 sec
Содержание HCD-MD515 - Component For Dhcmd515
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