27
XR-CA310/L210
Pin No. Pin Name I/O Description
44 UNI-CKO
O
Serial data transfer clock signal output to the SONY bus interface (IC800)
Used for the XR-CA310 only
45 SDA I/O
Two-way data bus with the RDS decoder (IC200)
46 NCO
O Not used (open)
47 SCL O
Bus clock signal output to the RDS decoder (IC200)
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)
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
Muting on/off control signal output of the FM and AM tuner signal “H”: muting on
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
Discharge control signal output for the noise detection circuit “H”: discharge
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 (fixed at “L”)
86 DEST-SEL2 I
Destination setting terminal (fixed at “H”)
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
90
FLASH-W
I
Internal flash memory data write mode detection signal input terminal “L”: data write mode,
Normally: fixed at “H”
91 NCO O
Not used (open)
92
ILL-ON O
Power on/off control signal output of the illumination LED and LCD back light (PL901, 902)
“H”: power on
93 BUS-ON
O
Bus on/off control signal output to the SONY bus interface (IC800) “L”: bus on
Used for the XR-CA310 only
94 SYS-RST O
Reset signal output to the SONY bus interface (IC800) “L”: reset
Used for the XR-CA310 only
95 DAVSS —
Ground terminal (for D/A converter)
96 TAPE-ON O
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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