77
• IC501 MASTER CONTROL (M30620MC-A18FP) (MAIN board (2/2))
Function
Power amplifier ON/OFF signal output
REEL pulse input from tape cassette deck
Front speaker relay control output
Headphones detection input. "H": Headphones detected, "L" : Headphones not detected
CD power ON signal output
LINE mute ON/OFF signal output
Not used
Connected to GND
Connected to GND
X'tal (32.768 kHz) input
X'tal (32.768 kHz) output
Reset signal input
X'tal (16 MHz) output
GND
X'tal (16 MHz) input
+5 V power
(5 V)
Not used
Subcode request signal output
RDS data input
AC power shut-down signal input
MD PLAY
MD PAUSE
MD REC
CD PLAY
Speaker protect signal input. "H": OFF, "L": ON
MD reset signal output
I
2
C bus CLK input/output
I
2
C bus DATA input/output
Not used
Subcode Q data clock input
Subcode Q data clock output
FL reset signal
FL data output
FL chip select signal
FL clock output
M62428AFP (IC301) latch signal output
Sub clock signal output (during test mode)
CD PAUSE
FWD PLAY (tape cassette)
FL switch ON. "H": ON, "L": OFF
Standby relay ON/OFF
REV PLAY (tape cassette)
"L": TAPE, "H": LINE IN. Function select signal output
DIGITAL INPUT select signal output
M62428AFP (IC301) data output
M62428AFP (IC301) clock output
STMUTE signal output
Stereo signal input from tuner
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Pin Name
STKPOWER
B-SHUT
F-RY
HEADPHONE
CD-POWER
TA-MUTE
LED
BYTE
CNVSS
SUBXIN
SUBXOUT
RESET
X-OUT
VSS
X-IN
VCC
NM1
LED
SCOR
RDS-INT
RDS-DATA
AC-CUT
LED
LED
LED
LED
PROTECT IN
MD-RESET
IIC-SCL
IIC-SDA
TXD
SQ-DATA-IN
SQ-CLK
FL-RESET
FL-DATA
FL-CHIP SELECT
FL-CLK
62LAT
STBY-LED
LED
LED
FL-ON
POWER-ON
LED
FUNC-SEL1
OPT-SEL
62DATA
62CLK
ST-MUTE
STEREO
I/O
O
I
O
I
O
O
—
—
—
I
O
I
O
—
I
—
I
I
I
I
I
I
O
O
O
O
I
O
I/O
I/O
—
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
Summary of Contents for HCD-J3MD
Page 20: ...20 ...