XR-CA333 - Sony Car Audio Service Manual (repair manual). Page 26

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26
XR-CA333
Pin No.
Pin Name
I/O
Description
45
SDA
I/O
Not used
46
NC
Not used
47
SCL
O
Not used
48
VOL-SO
O
Serial data output to the electrical volume
49
VOL-CE
O
Chip enable signal output to the electrical volume    “H” active
50
VOL-CKO
O
Serial data transfer clock signal output to the electrical volume
51
AMP-ON
O
Standby on/off control signal output to the power amplifier
“L”: standby mode, “H”: amplifier on
52
AMP-MUTE
O
Muting on/off control signal output to the power amplifier    “L”: muting on
53
MUTE
O
Audio line muting on/off control signal output    “H”: muting on
54
TU-MUTE
O
Not used
55
PORT2 (ST)
I
FM stereo broadcasting detection signal input from the tuner unit
“H”: stereo display lighting
56
NC
Not used
57
LO/DX
O
Local/DX control signal output to the tuner unit    “L”: DX, “H”: local
58
TU-ON
O
Tuner system power supply on/off control signal output    “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
60
AM-ON
O
AM system power supply on/off control signal output terminal
“L”: FM power on, “H”: AM power on    Not used
61 to 68
NC
Not used
69
NOISE-ON
O
Not used
70 to 82
NC
Not used
83
ILL-COLOR
I
Illumination color selection signal input    “L”: amber illumination    “H”: green illumination    
(fixed at “H” in this set)
84
DEST-SEL0
I
Destination setting terminal (fixed at “H” in this set)
85
DEST-SEL1
I
Destination setting terminal (fixed at “L” in this set)
86
DEST-SEL2
I
Destination setting terminal (fixed at “L” in this set)
87, 88
NC
Not used
89
NOSE-SW
I
Front panel block remove/attach detection signal input
“L”: front panel is attached
90
FLASH-W
I
Internal flash memory data write mode detection signal input
“L”: data write mode    Normally: fixed at “H”
91
NC
Not used
92
ILL-ON
O
Power on/off control signal output of the illumination LED and LCD back light
“H”: power on
93
BUS-ON
O
Bus on/off control signal output to the SONY bus interface    “L”: bus on
94
SYS-RST
O
Reset signal output to the SONY bus interface    “L”: reset
95
DAVSS
Ground terminal (for D/A converter)
96
TAPE-ON
O
Capstan/reel motor drive signal output    “H”: motor on
97
N/R
I
Tape direction switch input terminal    “L”: reverse direction, “H”: forward direction
98
FF/REW
I
FF/REW detection switch input terminal    “L”: FF/REW mode
99
TAPE-IN
I
Tape in detection switch input terminal    “L”: tape in
100
DAVDD
Power supply terminal (+5V) (for D/A converter)
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