18
Pin No.
Pin Name
I/O
Pin Description
69
AMP ON
O
Power supply on/off control signal output
70
MUT
O
System attenuate control signal output
71
AMP MUT
O
Power amp attenuate control signal output
72
VOL MUT
O
Mute control signal output for electrical volume
73
TU ON
O
Tuner attenuate signal output
74
EEP SDA
I/O
Tuner EEPROM serial data signal input/output
75
EEP SCL
O
Runer EEPROM serial clock signal output
76
IF BW
I
Not used.
77
NC
—
Not used. Tuner switch VCO level shift signal input
78
NC
—
Not used.
79
REIN1
I
Rotary encoder signal input
80
REIN0
I
Rotary encoder signal input
81
AD ON
O
Power control output for A/D conversion
82 – 92
NC
—
Not used.
93
OPEN
I
Front panel open/close condition signal input
94 – 98
NC
—
Not used.
99
PW ON
O
System power supply control signal output
100
NC
—
Not used.
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