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• MAIN BOARD IC1 M30805MG-216GP (SYSTEM CONTROLLER)
Pin No.
Pin Name
1
FL-DATA
2
FL-CLK
3
A1 IN
4
RMC
5 to 7
NC
8
MUTE
9
RESET
10
LATCH
11
LD-LOW
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
KEYBD-CLK
29
LDON
30
LIMIT-IN
31
A1 OUT
*1 Loading motor (M103) control
Mode
Terminal
LDIN (pin qs)
LDOUT (pin qd)
I/O
O
Serial data output to the fluorescent indicator tube/LED driver (IC761)
O
Serial data transfer clock signal output to the fluorescent indicator tube/LED driver (IC761)
I
Sircs remote control signal input terminal of the CONTROL A1II Not used (fixed at "H")
I
Remote control signal input from the remote control receiver (IC781)
O
Not used (open)
O
Audio line muting on/off control signal output "L": line muting on, "H": line muting off
O
Reset signal output to the A/D, D/A converter (IC500) "L": reset
O
Serial data latch pulse signal output to the A/D, D/A converter (IC500)
Loading motor drive voltage control signal output for the loading motor driver (IC440)
O
"H" active
O
Motor control signal output to the loading motor driver (IC440) "L" active *1
O
Motor control signal output to the loading motor driver (IC440) "L" active *1
Laser modulation selection 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 (32.768 kHz) Not used (open)
O
Sub system clock output terminal (32.768 kHz) Not used (open)
System reset signal input from the regulator (IC400) "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 (+3.3V)
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
Power down detection signal input from the regulator (IC400)
I
"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
I
Serial data transfer clock signal input from the key board Not used (fixed at "H")
O
Laser diode on/off control signal output to the automatic power control circuit "H": laser on
Detection signal input from the sled limit-in detect switch (S101)
I
The optical pick-up is inner position when "L"
O
Sircs remote control signal output terminal of the CONTROL A1II Not used (open)
LOADING
EJECT
"L"
"H"
"H"
"L"
Description
0.5 sec
2 sec
BRAKE
STOP
"L"
"H"
"L"
"H"
MDS-S9
49
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