61
6-39. IC PIN FUNCTIONS
• IC501 MAIN CONTROL (M30622MA-A09FP) (MAIN board)
Pin No.
Pin Name
I/O
Function
1
POWER
O
Power amp ON/OFF signal output
2
POWER
O
Power ON/OFF signal output
3
F-RELAY
O
Front speaker relay control output
4
REAR-RELAY
O
Rear speaker relay control output
5
CD-POWER
O
CD power on signal output
6
LINE-MUTE
O
Line mute signal output
7
DBFB-H/L
O
DBFB H/L select signal output
8
—
—
Connected to ground
9
—
—
Connected to ground
10
XC-IN
I
X’tal (32.768 KHz) (SUB CLOCK)
11
XC-OUT
O
12
RESET
I
System reset signal input
13
X-OUT
O
X’tal (16MHz) (MAIN SYSTEM CLOCK)
14
VSS
—
Ground
15
X-IN
I
X’tal (16MHz) (MAIN SYSTEM CLOCK)
16
VDD
—
Power supply (+5V)
17
NMI
I
Not used
18
WAKE UP
I
WAKE UP signal input
19
SCOR
I
CD Q-data request signal input
20
RDS-INT
I
RDS data interrupt input (Connected to ground)
21
RDS-DATA
I
RDS data interrupt input (Connected to ground)
22
AC-CUT
I
AC cut ON (L)/OFF (H) check
23
PL-CLK
O
Clock output to pro-logic (Not used)
24
PL-DATA
O
Data output to pro-logic (Not used)
25
PL-LAT
O
Latch signal output to pro-logic (Not used)
26
TIMER LED
O
Not used
27
PROTECT
I
Speaker protect signal input
28
V MUTE
O
Video mute signal output
29
IIC-CLK
O
I
2
C SCL
30
IIC-DATA
O
I
2
C SDA
31
—
—
Not used
32
SQ-DATA
I
Subcode Q data clock input (CD data)
O
Subcode Q data clock output (CD data clock)
O
SW-MODE music/movie select signal output
O
CD data output (Not used)
I
Head phone detect
O
CD clock output (Not used)
O
Latch signal output for IC101 (M62493FP)
O
Clock out signal check
—
Not used
—
Not used
O
Fluorescent indicator tube filament on/off signal output
43
STBY RELAY
O
Main POWER on/off signal output
44
BASS FREQ
O
FREQ high/low signal output (Not used)
45
FUNC SEL 1
O
Function select signal output
46
FUNC SEL 0
O
Function select signal output
47
493-DATA
O
Data signal output for IC101 (M62493FP)
48
493-CLK
O
Clock signal output for IC101 (M62493FP)
49
ST-MUTE
O
Tuner mute signal output
50
STEREO
I
Stereo detection for tuner
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