Sony ICF-306 Radio User Manual

The Sony ICF-306 is a portable AM/FM radio with a built-in ferrite bar antenna for AM and telescopic antenna for FM, large easy-to-read dial, tuning indicator, 3.5mm headphone jack, and battery operation. It features simple controls for power, volume, band selection, and tuning. Powered by two AA batteries (not included). 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 Headphones 7. Tuning and Reception 8. Battery Information 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: AM/FM Tuner, Telescopic Antenna, Ferrite Bar Antenna (internal), Tuning Knob, Volume Control, Band Selector, Headphone Jack, Battery Compartment.

Feature	Description
AM/FM Band Selector	Switches between AM and FM radio bands
Tuning Knob	For selecting radio stations
Tuning Indicator	Helps find the clearest signal point
Volume Control	Adjusts sound level
Telescopic Antenna	Extends for improved FM reception
Ferrite Bar Antenna	Internal antenna for AM reception; rotate radio for best signal
Headphone Jack	3.5mm jack for private listening
Battery Compartment	Holds two AA batteries
Carrying Strap Lug	For attaching optional carrying strap
Power Switch	Turns radio on/off

Installation

Unpack and inspect contents. Place on stable, dry surface.

Install batteries: Open battery compartment, insert two AA batteries observing correct polarity (+/-).
Extend telescopic antenna: Fully extend for FM listening.
For AM: No extension needed; use internal ferrite bar antenna.
Connect headphones: Plug into 3.5mm jack if desired.

WARNING! Do not mix old and new batteries or different battery types. Remove batteries if not using for extended periods.

First-Time Setup

Power on radio; follow these steps.

Select band: Slide BAND selector to AM or FM.
Tune to station: Turn TUNING knob slowly until station is heard clearly.
Adjust volume: Turn VOLUME knob to desired level.
Optimize antenna: For FM, extend and adjust telescopic antenna direction. For AM, rotate entire radio for best reception.

CAUTION! Keep away from moisture and extreme temperatures.

Specifications

Model: Sony ICF-306.
Bands: AM (530–1710 kHz), FM (87.5–108 MHz).
Antenna: Built-in ferrite bar for AM; telescopic for FM.
Speaker: Built-in dynamic speaker.
Output: 3.5mm stereo headphone jack.
Power Source: Two AA batteries (DC 3V).
Battery Life: Approx. 80 hours (varies by usage and battery type).
Dimensions: Approx. 190mm W x 115mm H x 65mm D.
Weight: Approx. 450g (without batteries).

Controls and Settings

All controls are manual. Front Panel: POWER switch, BAND selector (AM/FM), TUNING knob, VOLUME knob.

Side/Rear: Telescopic antenna, Headphone jack, Battery compartment cover.

Tuning: Use TUNING knob; tuning indicator shows strongest signal. Volume: VOLUME knob controls speaker/headphone output. Band Selection: Slide switch for AM or FM. Antenna: Extend telescopic for FM; rotate radio for AM.

Connecting Headphones

Use standard 3.5mm stereo headphones.

Ensure volume is turned down low.
Plug headphones firmly into the headphone jack.
Adjust volume to comfortable level.

Tip: When headphones are connected, the internal speaker is disabled.

Tuning and Reception

For best reception, follow these guidelines.

FM: Extend telescopic antenna fully. Adjust direction for clearest sound. Avoid obstructions.
AM: Use internal ferrite bar antenna. Rotate the entire radio slowly to find position with least noise and strongest signal.
Tuning: Turn knob slowly. The tuning indicator will show peak at correct frequency.
Weak signals: Move radio to different location, away from electronic devices or metal objects.

WARNING! Do not force tuning knob; turn gently.

Battery Information

Use two AA batteries (alkaline recommended).

Insert correctly: Match + and – marks in compartment.
Low battery: Sound may become distorted or weak; replace both batteries.
Storage: Remove batteries if not using radio for a month or more.
Disposal: Dispose of used batteries according to local regulations.

CAUTION! Risk of battery leakage if left in depleted state.

Care & Cleaning

Remove batteries before cleaning. Use soft, dry cloth. Do not use solvents or water.

CAUTION! Do not immerse in water; keep telescopic antenna dry and free of debris.

Regulatory Information

FCC Part 15: This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Copyright © Sony Corporation. For support, visit www.sony.com/electronics/support or contact Sony customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound/power	Dead batteries, incorrect insertion	Replace with new AA batteries; ensure correct polarity.
Poor FM reception	Antenna not extended, location	Extend telescopic antenna fully; move radio near window.
Poor AM reception	Interference, radio position	Rotate radio; move away from electronics/computers.
Distorted sound	Weak batteries, volume too high	Replace batteries; reduce volume.
Tuning knob stiff	Debris, mechanical issue	Clean gently with dry cloth; do not apply force.

Reset: Turn off, remove batteries for 1 minute, reinsert.

Service: Visit www.sony.com/electronics/support for service locations.