Sony mds-jb730 User Manual

Page of 64
– 63 –
Pin No.
Pin Name
I/O
Description
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
O
Not used (open)
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
O
Not used (open)
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
O
Not used (open)
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
Stop: “L”, Playback power: “H”,
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