Sony ICF-C303 - How to Use the Sleep Timer; Setting Sleep Timer Operation

SECTION 3
PIN DESCRIPTION
IC2 .PD1724GB-551-1A7
LCD10-LCD1 | LCD10-LCD1 | O | LCD drive
NC ee
COM3-COM1 COM3-COM1 LCD common
Pin for doubler circuit capacitor connection to develop LCD drive
voltage
—
a"
Audio signal mute. Active: Low. LOW when MUTE ON.
—_
}-—— MUTE ——»
Activates buzzer. (1 kHz)
5V power supply input terminal
I Unused pin
FM VCO I FM VCO input
LW/MW VCO I LW/MW/VC input
—
co
Ro f BO Re | Z|8
rs
bo = a8
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PLL error output pin
do
co
Detects power supply line status.
Power supply line OFF: Low
Power supply line ON: High
Crystal oscillator connection pin
Pin for regulator circuit capacitor connection to attain stable drive
voltage of the oscillator
ALARM OUT ALARM OUT
Cassette control input. (Unused pin)
MODE select input
MODE IN A Mode/B Mode select signal input to switch the function of the keys
Low: A Mode High: B Mode
CST OUT Cassette control output. (Unused pin)
INITIALIZE OUT
Generates INITIALIZE pulse to conduct BAND 12H/24H setting imme-
diately following cold start.
ON: High
POWER OUT output
Radio power supply control output
SER ONS POWER OFF: Low
POWER ON: HIGH (Unused pin)
AM/FM select
on pee FM: Low AM: High
LW/MW select output (Unused pin)
iP L
Pe NON LW: High MW: Low
ia
a
ee
La
VDD
Eee
a
| 5
| 26 |
||
| 8
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oo bo
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INIT OUT