– 63 –
Pin No.
Pin Name
I/O
Description
48
DA RST
O
Reset signal output to the A/D, D/A converter (IC321) “L”: reset
49
MUTE
O
Audio line muting on/off control signal output terminal “L”: line muting on
50
STB
O
Strobe signal output to the power supply circuit “L”: standby mode, “H”: power on
51
CHACK IN
I
Detection input from the disc chucking-in detect switch “L”: chucking
Not used (fixed at “H”)
52
NC
I
Not used (fixed at “L”)
53
PACK-OUT
I
Detection input from the loading-out detect switch (S602)
“L” at a load-out position, others: “H”
54
LDIN
O
Motor control signal output to the loading motor driver (IC471) “L” active *1
55
LDOUT
O
Motor control signal output to the loading motor driver (IC471) “L” active *1
56
LD-LOW
O
Loading motor drive voltage control signal output for the loading motor driver (IC471)
“H” active
57, 58
NC
I
Not used (fixed at “L”)
59
REC-P
I
Detection input from the recording position detect switch (S601) “L” active
60
PB-P
I
Detection input from the playback position detect switch (S604) “L” active
61
REC/PB
I
Not used (fixed at “L”)
62
+3.3V
—
Power supply terminal (+3.3V)
63
NC
I
Not used (fixed at “L”)
64
GND
—
Ground terminal
65
SDA
I/O
Two-way data bus with the EEPROM (IC171)
66
MNT3 (SLOCK)
I
Spindle servo lock status monitor signal input from the CXD2656R (IC121)
67
WR-PWR
O
Laser power select signal output to the CXD2656R (IC121) and HF module switch circuit
“L”: playback mode, “H”: recording mode
68
PROTECT
I
Rec-proof claw detect input from the protect detect switch (S102) “H”: write protect
69
REFLECT
I
Detection input from the disc reflection rate detect switch (S102)
“L”: high reflection rate disc, “H”: low reflection rate disc
70
LDON
O
Laser diode on/off control signal output to the automatic power control circuit “H”: laser on
71
SENS
I
Internal status (SENSE) input from the CXD2656R (IC121)
72
MNT1 (SHOCK)
I
Track jump detection signal input from the CXD2656R (IC121)
73
DIG-RST
O
Reset signal output to the CXD2656R (IC121) and BH6511FS (IC152) “L”: reset
74
MNT2 (XBUSY)
I
Busy signal input from the CXD2656R (IC121)
75
XLATCH
O
Serial data latch pulse signal output to the CXD2656R (IC121)
Laser modulation select signal output to the HF module switch circuit
Playback power: “H”, Stop: “L”,
Recording power:
76
MOD
O
77
LIMIT-IN
I
Detection input from the sled limit-in detect switch (S101)
The optical pick-up is inner position when “L”
2 sec
0.5 sec
*1 Loading motor (M103) control
LOADING
EJECT
BRAKE
RUN IDLE
LDIN (pin
%¢
)
“L”
“H”
“L”
“H”
LDOUT (pin
%∞
)
“H”
“L”
“L”
“H”
Terminal
Mode
