Sony CDP-S3 - IC Pin Function Descriptions

24
CDP-S3
6-10. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC401 M30620MAA-B31FP (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 to 7
——Not used (open)
8
BYTE I
External data bus line byte selection signal input “L”: 16 bits, “H”: 8 bits
Not used (fixed at “L”)
9 CNVSS —
To flash memory connector
10
——Not used (fixed at “L”)
11
——Not used (open)
12
RESET I Reset signal input from the tuner unit (ST-S3/S5)
13
X-OUT
O
System clock output terminal (16 MHz)
14 VSS —
Ground terminal
15
X-IN
I
System clock input terminal (16 MHz)
16 VCC —
Power supply terminal (+5V)
17
NMI
I
Non-maskable interrupt input terminal (fixed at “H” in this set)
18
——Not used (open)
19
SCOR
I
Subcode sync (S0+S1) detection signal input from the CXD3017Q (IC101)
20 to 23
——Not used (open)
24
BU PWM 3
O
RFDC PWM signal output to the CXA2581N (IC103)
25
——Not used (open)
26
BU PWM 2
O
Tracking error PWM signal output to the CXA2581N (IC103)
27
——Not used (open)
28
BU PWM 1
O
Focus error PWM signal output to the CXA2581N (IC103)
29
IIC-CLK I/O
Communication data reading clock signal input or transfer clock signal output with the tuner unit
(ST-S3/S5)
30 IIC-DATA I/O
Communication data bus with the tuner system (ST-S3/S5)
31
——Not used
32
SQ-DATA-IN I Subcode Q data input from the CXD3017Q (IC101)
33
SQ-CLK O Subcode Q data reading clock signal output to the CXD3017Q (IC101)
34
RTS1 — Not used
35 CD-DATA O
CD decode data output to the CXD3017Q (IC101)
36 SENS I
Internal status (SENSE) signal input from the CXD3017Q (IC101)
37 CD-CLK O
Serial data transfer clock signal output to the CXD3017Q (IC101)
38
CD POWER
O
Power on/off control signal output for the CD mechanism deck section
“L”: standby, “H”: power on
39
——Not used (open)
40
HOLD O Automatic power control hold signal output to the CXA2581N (IC103)
41
——Not used (fixed at “L”)
42 XLT O
Serial data latch pulse output to the CXD3017Q (IC101)
43
XRST
O
Reset signal output to the CXD3017Q (IC101)
44 LOAD-IN O
Loading motor drive signal (load-in direction) output the motor driver (IC701)
45 LOAD-OUT O
Loading motor drive signal (load-out direction) output the motor driver (IC701)
46 OPEN I
Sub tray load in/out detect switch (S742) input “L”: sub tray is chucking position
47
CLOSE
I
Sub tray load in/out detect switch (S742) input “L”: sub tray slides out of chucking position
48
T-SENS1 I
Detection input from the disc tray 1 height sensor (IC731)
“H”: disc tray 1 position is chucking position
49
T-SENS2 I
Detection input from the disc tray 2 height sensor (IC732)
“H”: disc tray 2 position is chucking position