85
HCD-PX333
•MD DIGITAL BOARD IC1001 M30805MG-205GP (MD MECHANISM CONTROLLER)
Pin No. Pin Name I/O Description
1, 2 —O Not used (open)
3 LVL1 O L-ch level output terminal Not used (open)
4 LVL0 O R-ch level output terminal Not used (open)
5 to 7 —O Not used (open)
8 MUTE O Muting control signal output to the D/A converter (IC1006) “L”: muting
9 DARST O Reset signal output to the D/A converter (IC1006) “H”: reset
10 SLICERSEL O IEC958 input selection signal output to the D/A converter (IC1006) “L”: MD, “H”: CD
11 LD-LOW OLoading motor drive voltage control signal output for the loading motor driver (IC1004)
“H” active
12 LDIN O Motor control signal output to the loading motor driver (IC1004) “L” active *1
13 LDOUT O Motor control signal output to the loading motor driver (IC1004) “L” active *1
Laser modulation select signal output to the HF module switch circuit
Stop: “L”, Playback power: “H”,
Recording power:
14 MOD O
15 BYTE I External data bus line byte selection signal input “L”: 16 bit, “H”: 8 bit (fixed at “L”)
16 CNVSS I Mode setting terminal “L”: single-chip mode (fixed at “L”)
17 X-CIN I Sub system clock input terminal Not used (open)
18 X-COUT O Sub system clock output terminal Not used (open)
19 RESET I System reset signal input from the reset signal generator (IC931) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
20 XOUT O Main system clock output terminal (10 MHz)
21 VSS0 —Ground terminal
22 XIN I Main system clock input terminal (10 MHz)
23 VCC0 —Power supply terminal (+3.3V)
24 NMI I Non-maskable interrupt input terminal “L” active (fixed at “H” in this set)
25 DQSY IDigital In U-bit CD format subcode Q sync (SCOR) input from the CXD2662R (IC151)
“L” is input every 13.3 msec Almost all, “H” is input
26 P.DOWN IPower down detection signal input from the system controller (IC501)
“L”: power down, normally: “H”
27 SQSY ISubcode Q sync (SCOR) input from the CXD2662R (IC151)
“L” is input every 13.3 msec Almost all, “H” is input
28 NC O Not used (open)
29 LDON O Laser diode on/off control signal output to the automatic power control circuit “H”: laser on
30 LIMIT-IN IDetection input from the sled limit-in detect switch (S101)
The optical pick-up is inner position when “L”
2 sec
0.5 sec