Read Sony CDX-GT340 / CDX-GT34W Service Manual online
CDX-GT34W/GT340
27
Pin No.
Pin Name
I/O
Description
71
AREASEL 1
I
Destination setting pin 1
72
AREASEL 0
I
Destination setting pin 0
73 to 80
NCO
O
Not used. (Open)
81
RE IN1
I
Rotary encoder signal input 1
82
RE IN0
I
Rotary encoder signal input 0
83
NCO/SA IN
I
Serial data signal input to electronic volume spectrum analyzer
84
CYRIL SEL
I
Cyril correspondence discrimination signal input
“H”: Correspondence, “L”: No correspondence
“H”: Correspondence, “L”: No correspondence
85 to 88
NCO
O
Not used. (Open)
89
NCO/SADATD
O
Serial data signal output to electronic volume spectrum analyzer
90
NCO/SACLK
O
Serial clock signal output to electronic volume spectrum analyzer
91
KEYACK0
I
Key Acknowledge detection signal input (Rotary command signal input) Not used.
92
KEYACK1
I
Key Acknowledge detection signal input (Front panel signal input)
93
VSM
I
S meter voltage detection signal input
94
KEYIN1
I
Key signal input 1
95
KEYIN0
I
Key signal input 0
96
AVSS
—
Ground pin for A/D converter
97
RC IN0
I
Rotary commander key signal input Not used.
98
AVRH
—
A/D converter external reference power supply pin (+3.3V)
99
AVDD
—
A/D converter power supply pin (+3.3V)
100
LCD CE
O
Liquid crystal display panel chip enable signal output
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