20
CDX-CA750/CA750X/CA760X
Pin No.
Pin Name
I/O
Pin Description
69
FLASH W
I
Flash write mode detection signal input
70
I2CSIO
O
Tuner, electronic volume communication data signal output
71
I2CCKO
O
Tuner, electronic volume communication clock signal output
72
NCO
O
Not used. (Open)
73
X1A
I
Low speed oscillation signal input (32.768 kHz)
74
X0A
I
Low speed oscillation signal input (32.768 kHz)
75
DAVN
O
DAVN signal output to RDS decoder
76
DISCON IN
O
Not used. (Open)
77
BUIN
I
Backup power supply detection signal input
78
NCO
O
Not used. (Open)
79
KEYACK
I
KEY ACK detection signal input
80
ADON
O
A/D conversion power control signal output
81
NOSESW
I
Front panel attachment detection signal input
82
FLASH ON
O
Flash write jig power supply output
83
PWON
O
System power supply control signal output
84
NCO
O
Not used. (Open)
85
RAMBU
I
RAM reset detection signal input
86
HSTX
I
Hardware standby signal input
87
MD2
I
Operation mode input (Connect to ground.)
88, 89
MD1, 0
I
Operation mode input (Connect to VCC.)
90
RESET
I
Microcomputer reset signal input
91
VSS
—
Ground pin
92
X0
I
High speed oscillation signal input (3.68 MHz)
93
X1
I
High speed oscillation signal input (3.68 MHz)
94
VCC
—
Power supply pin (+5 V)
95, 96
REIN0, 1
I
Rotary encoder signal input
97 – 99
NCO
O
Not used. (Open)
100
4V SEL X/O
I
4 V/5.5 V preout menu with/without initial setting input
101
COLORSEL X/O
I
Illumination select with/without initial setting input Not used. (Open)
102
MODELSEL0 U/J
I
Destination setting input Not used. (Open)
103
DOT/L-CUBE
I
DOT/L-CUBE judgment initial setting input
104
CD/MD
I
CDX/MDX judgment initial setting input Not used. (Open)
105, 106
NCO
O
Not used. (Open)
107
RCIN1 (PULL UP)
I
Rotary commander signal input
I
Test mode setting detection input
I
TEL mute detection signal input
I
Illumination line detection signal input
O
Not used. (Open)
O
Tuner on signal output
O
Not used. (Open)
O
Not used. (Open)
I
ACC power supply detection signal input L: ACC ON
O
Not used. (Open)
—
Ground pin
120
NCO
O
Not used. (Open)
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