RXD-M33V
7
CIRCUIT DESCRIPTION
Port No.
Port Name
I/O
Description
Active
H
L
1
SEL DT
O
Data output to surround controller.
2
TYPE
I
Discrimination of tuner destination.
3~7
NC
-
Not Connected.
8
BYTE
-
Connected to ground.
9
CN VSS
-
Connected to ground.
10
XC IN
I
Timer clock input (32.768kHz).
11
XC OUT
O
Timer clock output (32.768kHz).
12
RESET
I
Reset signal input for microcomputer.
Normal
Reset
13
V OUT
O
Main clock output (10MHz).
14
VSS
-
Connected to ground.
15
X IN
I
Main clock input (10MHz).
16
VCC(BU)
-
Microcomputer power supply (+5v).
17
NMI
Connected to VCC.
18
REMOCON
I
Remote control signal input.
19
ESS ST
I
Interrupt for ESS/ESS start to transmit
20
ESS ST
I
Interrupt for ESS/ESS finish to transmit
21
CE
I
Back up detection input.
AC ON
AC OFF
22~25
NC
-
Not Connected.
26
HP DET
I
Detection port for headphones jack.
H/P IN
H/P OUT
27
CD POWER
O
CD DSP power on/off changeover control.
ON
OFF
28
ESS CLK
I
Clock input from ESS.
29
ESS DIN
I
Data input from ESS.
30
ESS DO
O
Data output to ESS.
31
NC
-
Not Connected.
32
SP RLY
O
On/off control port for speaker relay.
ON
OFF
33
AMUTE
O
Audio mute control.
Mute OFF
Mute ON
34
POWER
O
Power relay control.
ON
OFF
35
FL DATA
O
Data output to FL dot driver.
36
NC
-
Not Connected.
37
FL CLK
O
Clock output to FL dot driver.
38
FL CE
O
CE output to FL dot driver.
Disable
Enable
39
FL RST
O
Reset output to FL dot driver.
Normal
Reset
40
LED POWER
O
Timer led (green) control port.
OFF
ON
41
LED STBY
O
Standby led (red) control port.
OFF
ON
42,43
ENC 1,2
I
Volume encoder (A/B) input.
44~46
NC
-
Not Connected.
47
CLOSE
O
Control port of CD tray motor.
ON
OFF
48
OPEN
O
Control port of CD tray motor.
ON
OFF
49
CLOSE SW
I
Input port of close switch for CD tray.
OFF
ON
50
OPEN SW
I
Input port of open switch for CD tray.
OFF
ON
51
FAN
O
Control port to fan motor.
ON
OFF
52
A/B-1
O
Deck recording mute & head select control 1.
53
A/B-2
O
Deck recording mute & head select control 2.
Recording
Except
Recording
54
B
ø
/
¿
O
Control port of recording equalizer for deck.
TYPE
¿
55~61
NC
-
Not Connected.
62
VCC(BU)
-
Connected to VCC.
63
NC
-
Not Connected.
64
VSS
-
Connected to ground.
65
PLAY SW
I
Detection switch input of head position for deck.
OFF
ON
66
CrO2 SW
I
Detection switch input of CrO2 tape for deck.
TYPE
¿
TYPE
ø
67
HALF SW
I
Cassette half switch input.
OFF
ON
68
REC F SW
I
Deck forward recording switch input.
OFF
ON
69
CPM
O
Control port of capstan motor for deck.
ON
OFF
5. Port Description of Microcomputer
