Sony ICF-M55 Radio User Manual

The Sony ICF-M55 is a portable AM/FM radio featuring a large, easy-to-read display, simple tuning controls, built-in speaker, headphone jack for private listening, and battery or AC power operation. Designed for reliability and ease of use, it's ideal for home, office, or outdoor use. 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 Devices 7. Listening to Radio 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: AM/FM tuner, LCD display, Speaker, Headphone jack, Tuning knob, Volume control, Power switch, AC adapter input.

Feature	Description
AM/FM Tuner	Receives AM and FM radio broadcasts
LCD Display	Shows frequency, time, and battery status
Built-in Speaker	Provides clear audio output
Headphone Jack	For private listening (3.5mm)
Tuning Knob	Manual tuning for AM and FM bands
Volume Control	Adjusts sound level
Power Switch	Turns radio on/off
AC Adapter Input	For power via AC adapter (DC IN)
Battery Compartment	Holds batteries for portable use
Carrying Handle	For easy portability

Installation

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

Insert batteries: Open battery compartment, insert batteries observing correct polarity (+/-).
Connect AC adapter: Plug adapter into DC IN jack and into AC outlet (if using AC power).
Extend antenna: Fully extend telescopic antenna for better FM reception.
Position radio: Place away from large metal objects or electronics to reduce interference.

WARNING! Use only recommended battery type. Do not mix old and new batteries.

First-Time Setup

Power on radio; follow simple tuning steps.

Select band: Slide BAND switch to AM or FM.
Tune station: Turn TUNING knob to desired frequency.
Adjust volume: Turn VOLUME control to comfortable level.
Fine-tune: For FM, adjust antenna direction for best reception.

CAUTION! Keep radio dry and away from heat sources.

Specifications

Tuning Range: FM: 87.5–108 MHz, AM: 530–1710 kHz.
Power Supply: 3V DC (2 x AA batteries) or AC adapter (optional).
Speaker: 2.5 inches, 8 ohms.
Output: Headphone jack (3.5mm stereo).
Antenna: Built-in telescopic rod for FM; internal ferrite bar for AM.
Display: LCD with frequency and battery indicator.
Dimensions: Approx. 6.3" W x 3.5" H x 2.2" D.
Weight: Approx. 0.66 lbs (without batteries).
Operating Temp: 32°F to 104°F (0°C to 40°C).

Controls and Settings

Front Panel: POWER switch, TUNING knob, VOLUME control, BAND selector (AM/FM).

Side/Back: Headphone jack, DC IN jack, Battery compartment, Telescopic antenna.

Tuning: Manual via TUNING knob. Volume: Adjust via VOLUME control. Power: On/Off via POWER switch. Display: Shows selected frequency and low battery indicator.

Connecting Devices

Headphones: Plug into headphone jack. AC Adapter: Connect to DC IN jack.

Turn radio off before connecting devices.
Insert headphone plug fully into jack.
Use only Sony-approved AC adapter (if applicable).

Tip: Disconnect headphones when not in use to save battery.

Listening to Radio

Supports AM and FM bands.

Power on: Set POWER switch to ON.
Select band: Choose AM or FM via BAND selector.
Tune: Rotate TUNING knob until desired station is found.
Adjust volume: Set VOLUME to preferred level.
For FM: Extend and orient telescopic antenna for best reception.
For AM: Rotate radio for optimal reception (internal antenna).
Headphone use: Plug in headphones; audio switches to headphones.

WARNING! Do not listen at excessively high volume levels to prevent hearing damage.

Accessibility Features

Large controls and display for easy operation. Tactile knobs for tuning and volume adjustment.

Care & Cleaning

Remove batteries before cleaning. Use soft, dry cloth; avoid liquids or abrasive cleaners.

CAUTION! Do not use chemicals; keep antenna fully retracted when not in use.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Dead batteries, incorrect polarity	Replace batteries; ensure correct +/- orientation.
Poor FM reception	Antenna not extended, location	Fully extend antenna; move radio to better location.
No sound	Volume low, headphones plugged in	Increase volume; unplug headphones if using speaker.
AM station weak	Interference, radio orientation	Move away from electronics; rotate radio for better reception.
Display dim or off	Low batteries	Replace batteries.

Reset: Remove batteries for 1 minute, then reinsert.

Service: Contact Sony support or authorized service center.