55
HCD-VX888
6-32.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC501 M30620MCA-A95FP (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
AUDIO OUT
ON/OFF
O
Audio output on/off control signal output to the Audio SWITCH (IC401)
“H”: ON, “L” OFF
2
STEREO
I
Stereo detection signal input from the LA1845 (IC11) “L”: Stereo in
3
TUNED
I
Tuning detection signal input from the LA1845 (IC11) “L”: Tuned in
4
SIRCS
I
Remote commander receiver signal input terminal
5
SUR1
O
Surround control signal output to the LA2615 (IC103)
6
SUR2
O
Surround control signal output to the LA2615 (IC103)
7
SUR3
O
Surround control signal output to the LA2615 (IC103)
8
GND
—
Ground terminal
9
GND
—
Ground terminal
10
XC IN
I
Sub system clock input terminal (32.768 kHz)
11
XC OUT
O
Sub system clock output terminal (32.768 kHz)
12
RESET
I
System reset signal input from the reset signal generator (IC502) “L”: reset
13
X-OUT
O
Main system clock output terminal (16 MHz)
14
VSS
—
Ground terminal
15
X-IN
I
Main system clock input terminal (16 MHz)
16
VCC
—
Power supply terminal (+5V)
17
NMI
I
For pull up terminal (connected to Ever +5V)
18
RDS-INT
I
RDS interrupt signal input terminal Not used (fixed at “L”)
19
SCOR
I
Subcode sync (S0+S1) detection signal input terminal Not used (fixed at “L”)
20
RDS-DATA
I
RDS data signal input terminal Not used (fixed at “L”)
21
ST-MUTE
O
Muting on/off control signal output to the LA1845 (IC11)
22
ST-CE
O
PLL chip enable signal output to the FM/AM PLL (IC51)
23
ST-DOUT
O
PLL serial data output to the FM/AM PLL (IC51)
24
BU-PWM3
O
RF data control signal output terminal Not used (open)
25
ST-DIN
I
PLL serial data input from the FM/AM PLL (IC51)
26
BU-PWM2
O
Tracking error control signal output terminal Not used (open)
27
ST-CLK
O
PLL serial data transfer clock signal output to the FM/AM PLL (IC51)
28
BU-PWM1
O
Focus error control signal output terminal Not used (open)
29
IIC-CLK
I/O
Shift clock signal input/output for the IIC bus
I/O
Data input/output terminal for the IIC bus
O
Not used (open)
I
Subcode Q data input terminal Not used (fixed at “L”)
O
Subcode Q data reading clock signal output terminal Not used (open)
I
Internal status detection monitor input terminal Not used (fixed at “L”)
O
Serial data output terminal Not used (open)
—
Not used (fixed at “L”)
O
Serial clock signal output terminal Not used (open)
38
CD-POWER
O
CD power on/off control signal output “L”: on, “H”: off
39
CLOCK-OUT
O
Clock signal output terminal Not used (open)
40
HOLD
O
Automatic power control hold signal output terminal Not used (open)
41
M-RESET
O
Micom reset signal output to the liquid crystal display driver (IC601) “L”: reset
42
XLT
O
Serial data latch pulse output terminal Not used (open)
43
XRST
O
CD reset signal output to the CXD3017Q (IC101) and BA5974FM (IC102) “L”: reset
44
LOAD-IN
O
Turn motor control signal output to the BA6956AN (IC701)
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