Sony MXD-D5C Service Manual page 84

• MAIN BOARD IC801 M30805SGP (SYSTEM CONTROLLER (MD MECHANISM CONTROLLER)
Pin No. Pin Name
1, 2 NC
3 LEVEL L
4 LEVEL R
5 to 7 NC
8 DAC MUTE
9 DARESET
10 SLICER SEL
11 LDLOW
12 LDIN
13 LDOUT
14 MOD
15 BYTE
16 CNVSS
17 XCIN
18 XCOUT
19 RESET
20 XOUT
21 VSS
22 XIN
23 VCC
24
NMI
25 DQSY
26 PDOWN
27 SQSY
28 NC
29 LDON
30 LIMIT-IN
*1 Loading motor (M103) control
Mode
Terminal
LDIN (pin qs)
LDOUT (pin qd)
84
I/O
O Not used (open)
O L-ch level output to the CD mechanism controller (IC800)
O R-ch level output to the CD mechanism controller (IC800)
O Not used (open)
O
Muting control signal output to the D/A converter (IC300) "L": muting
O
Reset signal output to the D/A converter (IC300), A/D converter (IC301) "H": reset
O
IEC958 input selection signal output to the D/A converter (IC300) "L": MD, "H": CD
Loading motor drive voltage control signal output for the loading motor driver (IC400)
O
"H" active
O Motor control signal output to the loading motor driver (IC400) "L" active *1
O Motor control signal output to the loading motor driver (IC400) "L" active *1
Laser modulation select signal output to the HF module switch circuit
Stop: "L", Playback power: "H",
Recording power:
O
I External data bus line byte selection signal input "L": 16 bit, "H": 8 bit (fixed at "L")
— Ground terminal
I Sub system clock input terminal Not used (open)
O Sub system clock output terminal Not used (open)
System reset signal input "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
O Main system clock output terminal (10 MHz)
— Ground terminal
I Main system clock input terminal (10 MHz)
— Power supply terminal (+3.5V)
I Non-maskable interrupt input terminal "L" active (fixed at "H" in this set)
Digital In U-bit CD format subcode Q sync (SCOR) input from the CXD2662R (IC151)
I
"L" is input every 13.3 msec Almost all, "H" is input
I Power down detection signal input terminal "L": power down, normally: "H"
Subcode Q sync (SCOR) input from the CXD2662R (IC151)
I
"L" is input every 13.3 msec Almost all, "H" is input
O Not used (open)
O Laser diode on/off control signal output to the automatic power control circuit "H": laser on
Detection input from the sled limit-in detect switch (S101)
I
The optical pick-up is inner position when "L"
LOADING EJECT
"L" "H"
"H" "L"
Description
0.5 sec
2 sec
BRAKE RUN IDLE
"L" "H"
"L" "H"