Sony ICF-DVD57TV Service Manual page 65

Pin No.
Pin Name
72
VDD0
73
VSS0
74
X1
75
X2
76
XRESET
77 RADIO ON
78
A MUTE
79 STBY
80
TIMER LED
I/O
- Power supply terminal (+3.3V)
- Ground terminal
I Main system clock input terminal (4.19 MHz)
O Main system clock output terminal (4.19 MHz)
System reset signal input from the reset signal generator "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
O Power on/off control signal output for the radio section "L": power on
O Audio muting on/off control signal output terminal "L": muting on
Power amplifier on/off control signal output terminal
O
"L": power amplifier on, "H": standby mode
O LED drive signal output of the TIMER indicator "L": LED on
Description
ICF-DVD57TV
65