MDX-F1
6
CIRCUIT DESCRIPTION
ACTIVE
Port #
Port Name
I/O
Descriptions
H
L
31
FL DATA
O
Output port for FL driver
32
NC
O
open
33
FL CLK
O
Clock output port for FL driver
34
CD DOOR SW2
I
CD DOOR OPEN sensor switch
ON
35
K DATA
O
Data transmission port to MD(UART)
36
MD DATA
I
Data input port from MD(UART)
37
DSCK
O
MD IC clock
38
CD DATA
O
CD DSP data output port
39
DSTB
O
MD STB output port
40
SDA(EPROM)
-
open
41
SCL(EPROM)
-
open
42
MD RST
O
Reset signal port for MD
RESET
NORMAL
43
PDOWN
O
MD POWER
ON
OFF
44
MD ST
O
MD ON/CD SYNC
45
SEARCH
O
MD SEARCH output port
46
LOAD SW
I
MD LOADING sensor switch input port
OFF
ON
47
CD DOOR SW1
I
CD DOOR sensor switch port
OFF
ON
48
RDS DATA
-
GND
49
MD NOT
-
GND
50
F1/MICRO
-
GND
51~56
NC
-
open
57~59
DSW0~DSW2
-
GND
60
DSW3
I
Destinations selector
J TYPE
M TYPE
61
VOL CLK
O
System IC
62
VCC(B.U.)
-
Power supply port (+5V)
63
A120/70
O
Playback EQ selector
64
AVSS
-
GND
65
A/B-2
O
Cassette deck operation mode selector
66
A/B-1
O
Cassette deck operation mode selector
67
BT/2
O
Cassette deck operation mode selector
68
REC/PLAY
O
Cassette deck rec/play mode selector
REC
PLAY
69
BEAT CANCEL
O
Beat cancel control port
ON
OFF
70
BIAS
O
Bias control port
ON
OFF
71
CPM
O
Cassette deck motor control port
ON
OFF
72
SOL
O
Cassette deck solenoid control port
ON
OFF
73
PLAY SW
I
Cassette deck play switch control port
OFF
ON
74
CrO2 SW
I
CrO2 tape detection
CrO2
NORMAL
75
PACK SW
I
Cassette half switch control port
OFF
ON
76
REC F
I
Cassette deck forward rec switch control port
OFF
ON
77
REC R
I
Cassette deck revise rec switch control port
OFF
ON
78
VOL DATA
O
System IC data port
79
A MUTE
O
Audio mute control port
OFF
ON
80
STBY
O
STANDBY control port
81
NC
O
open
82
POWER
O
MAIN POWER control port
OFF
ON
83
FL RST
O
Reset signal output port for display
NORMAL
RESET
84
FL CE
O
Chip enable signal output port for display
85
ENC1
I
Rotary encoder input1 port
86
ENC2
I
Rotary encoder input2 port
87
LEDR
O
LED(STANDBY,RED) control port
ON
OFF
88
LEDG
O
LED(TIMER,GRN) control port
ON
OFF
89
PHOTO
I
Cassette deck turning detection
90,91
KEY2,KEY1
I
Key a/d converter input port
92
NC
O
open
93
ADP3
I
Protection signal I/o port 3(ON: less0.5V)
94
ADP1
I
Protection signal I/o port 1(ON: less0.5V)
95
ADP2
I
Protection signal I/o port 2(ON: less0.5V)
96
AVSS
-
GND(A/D)
97
CE
I
BACK UP detection port
98
VREF
-
A/D converter standard voltage (+5V)
99
VCC(B.U.)
-
A/D converter power 5V)
100
CD POWER
O
CD DSP power supply control
ON
OFF