Sony ICF-SW12 Radio User Manual

The Sony ICF-SW12 is a portable shortwave radio receiver designed for global listening. It features AM/FM/SW bands, digital tuning with PLL synthesizer, 20 memory presets, built-in telescopic antenna, external antenna jack, LCD display with backlight, clock with alarm and sleep timer, tone control, and headphone output. Powered by AC adapter or batteries. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Antennas 7. Using Memory Presets 8. Clock and Timer Functions 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Digital tuner with PLL synthesizer, LCD display, telescopic antenna, memory presets, external antenna jack, headphone jack, AC adapter input.

Feature	Description
Band coverage	FM: 87.5-108 MHz, AM: 530-1710 kHz, SW: 2.3-26.1 MHz
Tuning system	PLL digital synthesizer
Memory presets	20 stations (10 FM, 5 AM, 5 SW)
Antenna	Telescopic rod antenna; external antenna jack
Display	LCD with backlight; shows frequency, time, band
Clock functions	Time display, alarm, sleep timer
Audio output	Built-in speaker; stereo headphone jack
Power sources	AC adapter (included) or 4 x AA batteries
Tone control	Bass boost switch
Size/Weight	Approx. 180 x 110 x 35 mm; 500g (with batteries)

Installation

Unpack and inspect contents. Place on stable surface.

Insert batteries: Open battery compartment, insert 4 AA batteries observing polarity.
Connect AC adapter: Plug adapter into DC IN jack and into wall outlet (optional).
Extend telescopic antenna: Fully extend for best reception, especially on SW/FM.
Connect external antenna: For improved SW reception, attach wire antenna to EXT ANT jack.

WARNING! Use only specified AC adapter. Incorrect voltage may damage radio.

First-Time Setup

Power on radio; set initial configurations.

Set time: Press CLOCK button, use TUNING buttons to set hour/minute, press CLOCK again.
Select band: Press BAND button to cycle FM/AM/SW.
Tune stations: Use TUNING buttons or manual tuning knob to find desired frequency.
Adjust volume: Turn VOLUME knob to comfortable level.
Set tone: Press BASS button to enable/disable bass boost.

CAUTION! Keep away from moisture and extreme temperatures.

Specifications

Frequency Range: FM 87.5-108 MHz, AM 530-1710 kHz, SW 2.3-26.1 MHz.
Tuning: Digital PLL synthesizer; manual tuning knob.
Memory: 20 presets (10 FM, 5 AM, 5 SW).
Antenna: Telescopic rod; external antenna jack.
Power Supply: AC 120V 60Hz adapter (DC 6V) or 4 x AA batteries.
Battery Life: Approx. 30 hours (alkaline batteries, normal use).
Output: Speaker 8Ω; Headphone jack 3.5mm stereo.
Dimensions: 180 x 110 x 35 mm (W x H x D).
Weight: 500g (with batteries).
Operating Temp: 0°C to 40°C (32°F to 104°F).

Controls and Settings

Front Panel: POWER switch, VOLUME knob, TUNING knob, BAND button, BASS button, CLOCK button.

Display: Shows frequency, band, time, memory number, battery indicator.

Tuning: Manual (knob) or digital (TUNING buttons). Memory: Store by pressing MEMORY, then number. Recall by pressing number. Clock: Set time, alarm on/off, sleep timer (15-90 min). Tone: BASS boost on/off. Backlight: Press LIGHT button to illuminate display.

Connecting Antennas

Telescopic: Extend fully; adjust angle for best reception. External: For SW, connect long wire (5-10m) to EXT ANT jack.

For FM: Extend telescopic antenna vertically.
For AM: Rotate radio for best reception; telescopic antenna has less effect.
For SW: Use external wire antenna; string horizontally or vertically outdoors.

Tip: Keep antenna away from metal objects and electronic devices for better reception.

Using Memory Presets

Store up to 20 stations for quick recall.

Tune to desired station.
Press MEMORY button; memory number flashes.
Press number button (0-9) to assign preset.
To recall: Press number button directly or press MEMORY then number.
To clear: Store another frequency on same number.

Note: Memory is retained when power is off (batteries or backup).

Clock and Timer Functions

Clock: Displays time when radio is off. Alarm: Set to wake to radio or buzzer. Sleep Timer: Turns radio off after set time.

Set alarm: Press CLOCK twice, set time with TUNING, select radio/buzzer with BAND.
Sleep timer: Press SLEEP, select duration (15,30,60,90 min).
Snooze: Press SNOOZE during alarm for 9-minute extra sleep.

Care & Cleaning

Remove batteries if not used for extended period. Clean with dry soft cloth; do not use solvents.

CAUTION! Avoid water and chemical cleaners. Keep ventilation openings unobstructed.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. Copyright © Sony Corporation. For support, visit www.sony.com/electronics/support or contact Sony Customer Service at 1-800-222-7669.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Dead batteries, adapter issue	Replace batteries; check adapter connection; ensure POWER is ON.
Poor reception	Antenna position, location	Extend antenna fully; move radio near window; use external antenna.
Memory lost	Batteries removed too long	Re-enter stations; replace batteries promptly when low.
Display dim/no backlight	Low batteries, backlight off	Replace batteries; press LIGHT button to activate backlight.
No sound from speaker	Volume low, headphones plugged in	Increase volume; unplug headphones; check mute function.
Alarm not working	Settings incorrect, power off	Verify alarm time and mode (radio/buzzer); ensure radio has power.

Reset: Remove batteries and adapter for 5 minutes to reset microcomputer.

Service: 1-800-222-7669; www.sony.com/electronics/support