25
Pin No.
Pin Name
I/O
Description
42, 43
—
O
Not used (pull down)
44
SIRCS
I
Sircs remote control signal input from the remote control receiver (IC503) and CONTROL S TV
IN (CONTROL S TV IN: used for the US model only)
45, 46
—
O
Not used (pull down)
47
STOP
I
Power down detection signal input terminal “L”: power down, normally : “H”
48
IC
—
Internal connection terminal (connected to ground)
49
STANDBY LED
O
LED drive signal output of the STANDBY (D510) indicator “L”: LED on
50
READY LED
O
LED drive signal output of the READY (D509) indicator “L”: LED on
51
OPERATE LED
O
LED drive signal output of the ON (D508) indicator “L”: LED on
52
VDD
—
Power supply terminal (+5V)
53 to 70
S24 to S7
O
Segment drive signal output to the fluorescent indicator tube (FL501)
71
VLOAD
—
Negative power supply terminal for the fluorescent indicator tube drive (–24V)
72 to 77
S6 to S1
O
Segment drive signal output to the fluorescent indicator tube (FL501)
78 to 80
10G to 8G
O
Gird drive signal output to the fluorescent indicator tube (FL501)
