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– 95 –
Pin No.
Pin Name
I/O
Function
87
CE
O
PLL serial chip enable signal output to the FM/AM tuner unit
88
ST-MUTE
O
Tuner muting on/off control signal output to the FM/AM tuner unit “L”: muting on
89
FM/AM SELECT
O
FM/AM selection signal output terminal Not used (open)
90
SIRCS
I
Sircs signal input from the remote control receiver (IC902)
91
—
O
Not used (open)
92
—
I
Not used (fixed at “L”)
93
FAN SPEED
O
Fan motor speed control signal output terminal Not used (open)
94
FAN STOP
O
Fan motor on/off control signal output terminal Not used (open)
95
—
O
Not used (open)
96
MD1
I
Setting terminal for the CPU operational mode (fixed at “H” in this set)
97 to 99
—
I
Not used (fixed at “L”)
100
BACKUP
I
System reset signal input from the reset signal generator (IC708) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
Summary of Contents for HCD-MD1EX - System
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