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3 7 63 1515 0
Pin No.
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
TE
L 13942296513
94
95
96
97
98
99 – 102
103
104
105
106
107
108
109
MODELSEL0
110
111
MODELSEL1
112
www
113
114
.
115
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Pin Name
I/O
Transfer enable signal input from the CXD2726Q (IC805)
DSPRADY
I
"L": transfer prohibition, "H": transfer permission
Input of acknowledge signal for the key entry Acknowledge signal is input to
KEYACK
I
accept function and eject keys in the power off status On at input of "H"
A/D converter power control signal output terminal
ADON
O
When the KEYACK (pin ul) that controls reference voltage power for key A/D
conversion input is active, "L" is output from this terminal to enable the input
ACCIN
I
Accessory detection signal input terminal "L": Accessory on
Power on/off control signal output of the illumination LED and liquid crystal display
FLASH ON
O
driver (IC901) "H": power on
PWON
O
Main system power supply on/off control signal output terminal "H": power on
TESTIN
I
Setting terminal for the test mode "L": test mode, Normally: fixed at "H"
Internal RAM reset detection signal input from the RN5VD33AA (IC504)
RAMBU
I
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset
HSTX
I
Hardware standby input terminal "L" hardware standby mode Reset signal input inset
MD2
I
Setting terminal for the CPU operational mode (fixed at "L" in this set)
MD1
I
Setting terminal for the CPU operational mode (fixed at "H" in this set)
MD0
I
Setting terminal for the CPU operational mode (fixed at "H" in this set)
System reset signal input from the reset signal generator (IC503) and reset swich (S101)
RSTX
I
"L": reset "L" is input for several 100 msec after power on, then it changes to "H"
VSS
—
Ground terminal
X0
I
Main system clock input terminal (3.68 MHz)
X1
O
Main system clock output terminal (3.68 MHz)
VCC
—
Power supply terminal (+5 V)
Auto dimmer control illumination line detection signal input terminal
ILLIN
I
"L" is input at dimmer detection
Telephone detection signal input terminal At input of "H", the signal is attenuated
TELATT
I
by –20 dB
EMPH
I
Emphasis control signal input from the CD Mechanism controller (IC5)
F CH
O
Frequency changing terminal from the power control (IC302) "H": frequency change
NCO
O
Not used (open)
Input terminal of whether line driver is mounted or not is detected
4V SEL
I
"L": line driver is not mounted, "H": line driver is mounted
Setting terminal for the illumination color
COL SEL
I
"L": 2 color (CDX-C8000R), "H": 1 (red) color (CDX-C8000RX)
Power amplifier muting on/off control signal output terminal "H": muting on
AMPATT
O
Not used (open)
BOOT
O
Serial data output to the liquid crystal display drive controller (IC701)
DSPGAIN
O
Not used (open)
NCO
O
Not used (open)
Setting terminal for the internal mechanism tape or CD/MD
I
"L": tape, "H": CD/MD (fixed at "H" in this set)
DSPON
O
Power supply on/off control signal output for the CXD2726Q (IC805) "H": DSP on
Setting terminal for the internal mechanism CD or MD
I
"L": CD, "H": MD (fixed at "L" in this set)
BAND
I
Not used (fixed at "L")
Tuner system power supply on/off control signal output terminal
TUNON
O
x
ao
y
"H": tuner power on
DOORSW
I
Not used (fixed at "L")
i
Dial pulse input of the rotary encoder (RE901) (A phase input)
REIN1
I
(for VOLUME/BASS/TREBLE/BALANCE/FADER control)
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8
Q Q
3
6 7
1 3
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.
2 9
9 4
2 8
Pin Description
1 5
0 5
8
2 9
9 4
m
co
9 9
2 8
9 9
27
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