Sony HCD-GRX5 Service Manual page 50

Pin No. Pin Name
36 SPEANA-3
37 SPEANA-4
38 VASS
39 VAREF
40 VDD
41 to 53 GR1 to GR13
54 to 69
SEG1 to SEG16
70 to 72 SEG19 to SEG17
73 to 77
SEG24 to SEG20
78 VKK
79 LED1
80 LED2
I/O
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
I
(for middle and high frequency)
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
I
(for high frequency)
—
Ground terminal
I
Reference voltage (+5V) input terminal (for A/D conversion)
—
Power supply terminal (+5V)
O
Grid drive signal output to the fluorescent indicator tube (FL601)
O
Segment drive signal output to the fluorescent indicator tube (FL601)
O Segment drive signal output to the fluorescent indicator tube (FL601)
O
Segment drive signal output to the fluorescent indicator tube (FL601)
—
Power supply terminal (–30V) (for fluorescent indicator tube drive)
O
LED drive signal output terminal (r REC, P PAUSE)
O
LED drive signal output terminal Not used (open)
Function
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