26
XR-CA300/CA320/CA320X
Pin No.
Pin Name
I/O
Description
44
UNI-CKO
O
Serial data transfer clock signal output to the SONY bus interface (IC800)
45
SDA
I/O
Not used (open)
46
NCO
O
Not used (open)
47
SCL
O
Not used (open)
48
VOL-SO
O
Serial data output to the electrical volume (IC400)
49
VOL-CE
O
Chip enable signal output to the electrical volume (IC400) “H” active
50
VOL-CKO
O
Serial data transfer clock signal output to the electrical volume (IC400)
51
AMP-ON
O
Standby on/off control signal output to the power amp (IC500)
“L”: standby mode, “H”: amp on
52
AMP-MUTE
O
Muting on/off control signal output to the power amp (IC500) “L”: muting on
53
MUTE
O
Audio line muting on/off control signal output terminal “H”: muting on
54
TU-MUTE
O
Not used (open)
55
PORT2 (ST)
I
FM stereo broadcasting detection signal input from the FM/AM tuner unit (TU100)
“H”: stereo display lighting
56
NCO
O
Not used (open)
57
LO/DX
O
Local/DX control signal output to the FM/AM tuner unit (TU100) “L”: DX
58
TU-ON
O
Tuner system power supply on/off control signal output terminal “H”: tuner power on
59
FM-ON
O
FM system power supply on/off control signal output terminal
“L”: AM power on, “H”: FM power on Not used (open)
60
AM-ON
O
AM system power supply on/off control signal output terminal
“L”: FM power on, “H”: AM power on Not used (open)
61 to 68
NCO
O
Not used (open)
69
NOISE-ON
O
Not used (open)
70 to 82
NCO
O
Not used (open)
83
ILL-COLOR
I
Illumination color select input terminal “L”: amber illumination “H”: green illumination
84
DEST-SEL0
I
Destination setting terminal (fixed at “H”)
85
DEST-SEL1
I
Destination setting terminal XR-CA300: fixed at “L”, XR-CA320/CA320X: fixed at “H”
86
DEST-SEL2
I
Destination setting terminal XR-CA300: fixed at “L”, XR-CA320/CA320X: input for the
FREQUENCY SELECT switch (S60)
87, 88
NCO
O
Not used (open)
89
NOSE-SW
I
Front panel block remove/attach detection signal input terminal
“L”: front panel is attached
Internal flash memory data write mode detection signal input terminal “L”: data write mode,
Normally: fixed at “H”
Power on/off control signal output of the illumination LED and LCD back light (PL901, 902)
“H”: power on
Bus on/off control signal output to the SONY bus interface (IC800) “L”: bus on
Reset signal output to the SONY bus interface (IC800) “L”: reset
Ground terminal (for D/A converter)
Capstan/reel motor (M901) drive signal output terminal “H”: motor on
97
N/R
I
Tape direction switch (S903) input terminal “L”: reverse direction “H”: forward direction
98
FF/REW
I
FF/REW detection switch (S902) input terminal “L”: FF/REW mode
99
TAPE-IN
I
Tape in detection switch (S903) input terminal “L”: tape in
100
DAVDD
—
Power supply terminal (+5V) (for D/A converter)
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