Sony SRF-S50 Radio User Manual

The Sony SRF-S50 is a compact, portable AM/FM radio featuring a built-in speaker, headphone jack for private listening, telescopic antenna for improved reception, digital tuning with preset stations, LCD display with backlight, battery operation, and a sleek, durable design. 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. Advanced Functions 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: LCD display, telescopic antenna, built-in speaker, headphone jack, control buttons, battery compartment.

Feature	Description
Telescopic Antenna	Extends for improved FM/AM reception
LCD Display	Shows frequency, time, preset number, and battery status
Built-in Speaker	For room-filling sound
Headphone Jack (3.5mm)	For private audio listening
Digital Tuning	Precise station selection with auto-scan
Preset Stations	Store up to [number, e.g., 10] favorite AM/FM stations
Power Source	Operates on [e.g., 2 x AA] batteries or optional AC adapter
Sleep Timer	Automatically turns off the radio after set time
Key Lock	Prevents accidental button presses
Backlight	Illuminates display in low-light conditions

Installation

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

Install batteries: Open battery compartment, insert batteries observing correct polarity (+/-).
Extend the telescopic antenna fully for best reception.
For AC power (if supported): Connect the optional AC adapter to the DC IN jack and a wall outlet.

WARNING! Use only recommended battery type. Do not mix old and new batteries. Remove batteries if not using for an extended period.

First-Time Setup

Power on the radio; follow these initial steps.

Set the clock: Press and hold CLOCK button, use TUNING buttons to set time.
Tune to a station: Press BAND to select AM or FM. Press and hold TUNING UP/DOWN for auto-scan, or press briefly for manual tuning.
Save presets: Tune to desired station, press and hold a numbered PRESET button until display confirms.
Adjust volume: Use VOLUME UP/DOWN buttons.

CAUTION! Keep away from moisture and extreme temperatures.

Specifications

Frequency Range: FM: 87.5 - 108 MHz, AM: 530 - 1710 kHz.
Power Supply: [e.g., 2 x AA batteries] or DC [e.g., 3V] via optional adapter.
Output: Built-in speaker, 3.5mm stereo headphone jack.
Display: LCD with backlight.
Preset Memory: [e.g., 10] stations for FM, [e.g., 5] for AM.
Dimensions & Weight: Compact and lightweight for portability.
Operating Temp: 5°C to 40°C (41°F to 104°F).

Controls and Settings

Access functions via front panel buttons. Main Controls: POWER, VOLUME UP/DOWN, BAND (AM/FM), TUNING UP/DOWN, PRESET buttons (1-5/10), MENU/SET.

Menu Functions: Press MENU to access: Sleep Timer, Key Lock, Backlight Duration, Reset. Use TUNING buttons to navigate, press MENU to confirm.

Tuning: Manual or Auto-scan. Volume: Adjustable in multiple steps. Display: Shows frequency, time, preset, battery icon. Audio: Mono/Stereo selection for FM (AUTO).

Connecting Devices

Headphones: Plug into 3.5mm jack (disables internal speaker). External Antenna (if supported): Connect to EXT ANT terminal for improved AM reception.

Ensure radio is powered on.
Insert headphone plug fully into the jack.
Adjust volume to a low level before placing headphones on.

Tip: Use headphones with a standard 3.5mm stereo plug.

Advanced Functions

Supports preset recall, sleep timer, and key lock.

Recall Preset: Press BAND, then press the numbered PRESET button.
Set Sleep Timer: Press MENU, select SLEEP, choose duration (e.g., 15-90 min). Radio turns off automatically.
Enable Key Lock: Press and hold [e.g., LOCK] button to prevent accidental operation. Press again to disable.
Auto-Scan: Press and hold TUNING UP/DOWN; radio stops at next strong station.
Reset: In MENU, select RESET to restore factory settings (erases presets).

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

Accessibility Features

Tactile Buttons: Raised markings for key controls. Large Display: Clear, backlit LCD. Mono Audio Output: Can be set for FM stations for consistent listening.

Care & Cleaning

Remove batteries before cleaning. Use a soft, dry cloth to wipe the cabinet and display. Do not use chemicals or abrasives.

CAUTION! Do not immerse in water. Keep antenna fully retracted when not in use or during transport.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Sony Corporation. For support, visit www.sony.com/electronics/support or contact Sony customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Dead batteries, incorrect installation	Replace batteries; ensure correct polarity.
Poor reception	Antenna not extended, location	Fully extend antenna; move radio near a window.
Display is blank	Battery low, key lock on	Replace batteries; check if key lock is enabled.
No sound from speaker	Volume low, headphones plugged in	Increase volume; unplug headphones.
Cannot save presets	Procedure error, memory full	Press and hold PRESET button until beep; try a different preset number.
Sleep timer not working	Not set correctly	Re-enter MENU to confirm sleep timer duration is set.

Reset: Menu > System > Reset to factory defaults if problems persist.

Service: Visit www.sony.com/electronics/support for manuals and contact information.