Sony XR-L240 Service Manual page 26

XR-L240
Pin No. Pin Name
46 NC
47 SCL
48 VOL-SO
49 VOL-CE
50 VOL-CKO
51 AMP-ON
52 AMP-MUTE
53 MUTE
54 TU-MUTE
55 PORT2 (ST)
56 NC
57 LO/DX
58
TU-ON
59 FM-ON
60 AM-ON
61 to 68 NC
69 NOISE-ON
70 to 82 NC
83 ILL-COLOR
84 DEST-SEL0
85 DEST-SEL1
86 DEST-SEL2
87, 88 NC
89 NOSE-SW
90
FLASH-W
91 NC
92
ILL-ON
93 BU-SON
94 SYS-RST
95 DAVSS
96 TAPE-ON
97 N/R
98 FF/REW
99 TAPE-IN
100 DAVDD
26
I/O
— Not used
O
Bus clock signal output to the RDS decoder
O Serial data output to the electrical volume
O Chip enable signal output to the electrical volume "H" active
O Serial data transfer clock signal output to the electrical volume
O
Standby on/off control signal output to the power amp "L": standby mode, "H": amp on
O Muting on/off control signal output to the power amp "L": muting on
O Audio line muting on/off control signal output terminal "H": muting on
O
Muting on/off control signal output of the FM and AM tuner signal "H": muting on
FM stereo broadcasting detection signal input from the FM/AM tuner unit
I
"H": stereo display lighting
— Not used
O
Local/DX control signal output to the FM/AM tuner unit "L": DX
O Tuner system power supply on/off control signal output terminal "H": tuner power on
FM system power supply on/off control signal output terminal
O
"L": AM power on, "H": FM power on Not used
AM system power supply on/off control signal output terminal
O
"L": FM power on, "H": AM power on Not used
—
Not used
O
Discharge control signal output for the noise detection circuit "H": discharge
— Not used
Illumination color select input terminal "L": amber illumination "H": green illumination
I
(fixed at "L")
I
Destination setting terminal (fixed at "H")
I
Destination setting terminal (fixed at "L")
I Destination setting terminal (fixed at "H")
— Not used
Front panel block remove/attach detection signal input terminal
I
"L": front panel is attached
Internal flash memory data write mode detection signal input terminal
I
"L": data write mode Normally: fixed at "H"
—
Not used
Power on/off control signal output of the illumination LED and LCD back light
O
"H": power on
O Bus on/off control signal output to the bus interface "L": bus on
O
Reset signal output to the bus interface "L": reset Not used
—
Ground terminal (for D/A converter)
O
Capstan/reel motor drive signal output terminal "H": motor on
I Tape direction switch input terminal "L": reverse direction "H": forward direction
I
FF/REW detection switch input terminal "L": FF/REW mode
I
Tape in detection switch input terminal "L": tape in
—
Power supply terminal (+5V) (for D/A converter)
Description
Not used