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

*1 Loading motor (M103) control

Mode

Terminal

LDIN (pin qs)L”“H”“L”“H

LDOUT (pin qd)H”“LL”“H

LOADING EJECT BRAKE RUN IDLE