Sony SRF-M37W Radio User Manual

The Sony SRF-M37W is a compact, water-resistant portable radio featuring AM/FM tuner, digital tuning with preset stations, built-in speaker, headphone jack, LCD display with backlight, clock with alarm function, and battery-powered operation. Ideal for outdoor use, it offers clear sound quality and durable construction. 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 the Radio 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: AM/FM tuner, LCD display, Built-in speaker, Headphone jack, Power switch, Tuning/Preset buttons, Volume control, Clock/Alarm settings.

Feature	Description
AM/FM Tuner	Digital tuning for AM and FM bands
LCD Display	Shows frequency, time, preset number, battery status
Built-in Speaker	For clear audio playback
Headphone Jack	For private listening (3.5mm)
Power Switch	Turns radio on/off
Tuning/Preset Buttons	For manual tuning and accessing preset stations
Volume Control	Adjusts audio output level
Clock/Alarm	Time display with alarm function
Water-Resistant	Suitable for outdoor use
Battery Powered	Operates on AA batteries

Installation

Unpack and inspect contents. Ensure all parts are present.

Insert batteries: Open battery compartment, insert AA batteries as indicated.
Extend antenna: Fully extend telescopic antenna for best reception.
Connect headphones: Plug into headphone jack if desired.
Power on: Slide POWER switch to ON position.

WARNING! Use correct battery polarity to avoid damage. Keep away from water beyond specified resistance level.

First-Time Setup

Power on radio; follow initial setup steps.

Set time: Press CLOCK button, use TUNING buttons to set hour/minute.
Set alarm: Press ALARM button, set time and choose alarm sound (buzzer/radio).
Program preset stations: Tune to desired station, press and hold preset number (1-5) to store.
Adjust volume: Turn VOLUME knob to comfortable level.

CAUTION! Do not expose to extreme temperatures; store in dry place.

Specifications

Tuning Range: FM 87.5-108 MHz, AM 530-1710 kHz.
Power Supply: 2 x AA batteries (DC 3V).
Speaker: Dynamic speaker (ø 40 mm).
Output: Headphone jack (3.5mm stereo).
Display: LCD with backlight.
Preset Stations: 5 for FM, 5 for AM.
Dimensions: Approx. 105 x 65 x 25 mm.
Weight: Approx. 120 g (without batteries).
Water Resistance: IPX4 (splash resistant).

Controls and Settings

Front Panel: POWER switch, VOLUME knob, TUNING buttons, PRESET buttons, MODE (AM/FM), CLOCK, ALARM, LIGHT (backlight).

Functions: Tuning: Manual with TUNING buttons; Auto-scan available. Presets: Store/recall 5 stations per band. Clock: 12/24 hour format. Alarm: Daily or one-time alarm with snooze. Backlight: Press LIGHT to illuminate display.

Settings: Time set, Alarm set, Preset memory, Band selection (AM/FM).

Connecting Devices

Headphones: Standard 3.5mm plug. External antenna: Not supported; use built-in telescopic antenna.

Ensure radio is off before connecting headphones.
Plug headphones fully into jack.
Adjust volume to low level before placing in ears.

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

Using the Radio

Supports AM/FM listening with preset recall.

Select band: Press MODE to switch between AM and FM.
Tune station: Use TUNING buttons or auto-scan by pressing and holding TUNING.
Recall preset: Press corresponding preset number (1-5).
Adjust volume: Turn VOLUME knob clockwise to increase.
Use alarm: Set alarm time; activate with ALARM ON/OFF.
Snooze: Press any button during alarm to snooze for 5 minutes.
Backlight: Press LIGHT to turn on display illumination (times out after 5 seconds).

WARNING! Do not use headphones at high volume for extended periods to prevent hearing damage.

Accessibility Features

Backlight: Aids visibility in low light. Large buttons: Easy to press. Clear display: Shows essential information.

Care & Cleaning

Remove batteries before cleaning. Wipe exterior with soft, dry cloth; avoid solvents.

CAUTION! Do not submerge in water; not fully waterproof. Keep battery compartment dry.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Dead batteries	Replace with fresh AA batteries; check polarity.
Poor reception	Antenna not extended	Fully extend telescopic antenna; move to better location.
No sound	Volume low/mute	Increase volume; check headphone connection.
Display blank	Backlight off/batteries	Press LIGHT button; replace batteries if needed.
Alarm not working	Settings incorrect	Ensure alarm is set and activated; check time setting.
Presets lost	Batteries removed	Presets are maintained if batteries replaced quickly; reprogram if lost.

Reset: Remove batteries for 1 minute to reset microcomputer.

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