Sony ICF-M33RDS Radio User Manual

The Sony ICF-M33RDS is a portable digital radio featuring RDS (Radio Data System) for station information, 30 station presets (20 FM, 10 AM), dual alarm with snooze function, sleep timer, battery/AC power operation, large LCD display with backlight, and built-in stereo speakers. 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. Using RDS Features 8. Alarm Functions 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: LCD display with backlight, speaker grilles, control buttons, telescopic antenna, DC input jack, headphone jack.

Feature	Description
RDS (Radio Data System)	Displays station name and program information
Station Presets	30 total (20 FM, 10 AM) for quick tuning
Dual Alarm	Two independent alarms with radio or buzzer sound
Snooze Function	9-minute snooze when alarm sounds
Sleep Timer	Auto shut-off from 15 to 90 minutes
Power Source	AC adapter (included) or 4 x AA batteries
LCD Display	Shows time, frequency, station name, alarm status
Telescopic Antenna	For improved FM reception
Headphone Jack	For private listening (3.5mm stereo)
Battery Indicator	Shows remaining battery power

Installation

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

Install batteries: Open battery compartment, insert 4 AA batteries observing polarity.
Connect AC adapter: Plug DC jack into radio, then plug adapter into AC outlet.
Extend antenna: Fully extend telescopic antenna for best FM reception.
Set time: Press CLOCK button and use TUNING/+/- to set correct time.

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

First-Time Setup

Power on radio; follow these initial setup steps.

Set time manually: Hold CLOCK button, use TUNING/+/- to adjust hours/minutes.
Auto time set (RDS): Enable in menu for automatic time synchronization.
Tune stations: Use TUNING/+/- or auto scan to find stations.
Save presets: Tune to station, hold preset button (1-30) for 2 seconds.
Configure alarms: Press ALARM button to set alarm time and sound source.

CAUTION! Keep away from moisture and extreme temperatures.

Specifications

Frequency Range: FM 87.5-108 MHz, AM 530-1710 kHz.
Preset Memory: 30 stations (20 FM, 10 AM).
Power Supply: AC 120V 60Hz (adapter) or 4 x AA batteries.
Battery Life: Approx. 25 hours (alkaline batteries).
Display: LCD with EL backlight.
Audio Output: Built-in stereo speakers, 3.5mm headphone jack.
Dimensions: Approx. 200 x 120 x 60 mm.
Weight: Approx. 800g (without batteries).
Operating Temp: 5°C to 40°C (41°F to 104°F).

Controls and Settings

Front Panel: POWER, VOLUME, TUNING/+/-, BAND (FM/AM), PRESET, ALARM, CLOCK, SLEEP.

Menu Functions: Press MENU to access: RDS On/Off, Auto Time Set, Display Contrast, Backlight Duration, Reset.

Tuning: Manual with TUNING/+/- or auto scan (hold TUNING for 2 seconds). Volume: VOLUME knob or +/- buttons. Presets: Press PRESET then number (1-30). Alarm: ALARM button to set time, sound (radio/buzzer), and repeat (daily/weekdays). Sleep Timer: SLEEP button sets auto shut-off (15-90 min).

Connecting Devices

Headphones: 3.5mm stereo jack. External antenna: Optional FM antenna connector.

Turn off radio before connecting devices.
Insert headphone plug fully into jack.
For external antenna, connect to FM ANT terminal at rear.
Select input source if applicable.

Tip: Use headphones for private listening; disconnect when not in use.

Using RDS Features

RDS provides station information and auto time sync.

Enable RDS: Menu > RDS > On.
Station name: Tune to RDS station; name appears on display.
Program Info: Press INFO to scroll through available information.
Auto Time: Menu > Auto Time Set > On (sets clock from RDS signal).
Traffic Announcements: If supported, TA light illuminates.

Note: RDS function depends on broadcast station support.

Alarm Functions

Dual alarm with radio or buzzer option.

Set Alarm 1: Press ALARM, select ALARM 1, set time with TUNING/+/-.
Set Alarm 2: Repeat for ALARM 2.
Sound Source: Choose RADIO (last station) or BUZZER.
Repeat: Set DAILY, WEEKDAYS, or ONCE.
Snooze: Press any button during alarm for 9-minute snooze.
Deactivate: Press ALARM OFF when alarm sounds.

WARNING! Test alarm function after battery replacement.

Care & Cleaning

Unplug AC adapter before cleaning. Use soft, dry cloth only.

CAUTION! Do not use solvents or abrasive cleaners. Keep away from liquids.

Regulatory Information

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

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Batteries/AC adapter	Check battery polarity; ensure AC adapter is connected properly.
Poor FM reception	Antenna position	Extend antenna fully; reposition radio; avoid obstructions.
Display dim or blank	Backlight/Batteries	Adjust backlight in menu; replace batteries if low.
Alarm not sounding	Settings/Volume	Verify alarm is enabled; check volume level if radio alarm.
RDS not working	Station/Broadcast	Ensure RDS is enabled in menu; station may not broadcast RDS.
Presets lost	Battery removal	Presets are maintained by backup battery; may reset if depleted.

Reset: Menu > System > Reset All Settings if available.

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