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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
Mod
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