18
CDX-F7700/F7705X
Pin No.
Pin Name
I/O
Pin Description
53
CD LM EJECT
O
CD eject signal output
54
CD RESET
O
CD reset signal output
55
CD AO
O
CD AO signal output
56
CD STB
O
CD strobe signal output
57
(NCO)
O
Not used
58
CD RF OK
I
CD RF OK signal input
59
CD ON
I
CD ON signal input
60
VCC2
—
Power supply pin (+5V)
61
DISP RESET
O
Display CPU reset signal output
62
VSS
—
Ground
63
TEST IN
I
Test mode signal input
64
BUS ON
O
BUS ON signal output
65
SYS RST
O
System reset signal output
66
BUS/AUX
O
BUS AUDIO/AUX-IN select signal output
67
(NCO)
O
Not used
68
ACC IN
I
ACC power supply check signal input
69
ILL IN
I
ILL check signal input
70
RC IN1
I
Rotary commander signal input
71
CDM ON
I
CD power supply ON signal input
72
CD SELF SW
I
CD SELF switch detection signal input
73
TU ATT IN
I
Tuner attenuator zero cross signal input
74
ZERO DET1
I
ZERO detection signal input 1
75
ZERO DET2
I
ZERO detection signal input 2
76
Z ATT
I
Z mute signal input
77
(NCO)
O
Not used
78
(NCO)
O
Not used
79
ROMC EN
O
Connecting to ground.
80
QUALITY
I
Tuner noise detection signal input
81
MPTH
O
Not used
82
VSM
I
S-meter signal input
83
SA IN
I
Spectrum analyzer data input
84
KEY IN1
I
Key signal input
85
KEY IN0
I
Key signal input
86
RC IN0
I
Rotary commander signal input
87
KEY ACK2
I
Rotary commander ACK signal input
88
KEY ACK0
I
Key ACK signal input
89
KEY ACK1
I
Key ACK signal input
90
DOORING
O
Sub panel LED power supply control signal output
91
RAM BU
I
RAM back-up input
92
FLD ON
O
FL driver power supply control signal output
93
FL ON
O
FL power supply control signal output
94
AVSS
—
Ground
95
DISP CE
O
Display CPU chip enable output
96
VREF
—
AD converter reference voltage (+5V)
97
AVCC
—
Power supply pin (+5V)
98
DISP SI/RX
I
Display CPU serial data input
99
DISP SO/TX
O
Display CPU serial data output
100
DISP CKO
O
Display CPU serial clock output
