sony SRF-46 Operating Instructions (primary manual) Radio User Manual

The Sony SRF-46 is a compact, portable AM/FM radio designed for personal listening. It features a built-in speaker and headphone jack, digital tuning with preset stations, a backlit LCD display, and is powered by batteries or optional AC adapter. This manual covers safety instructions, features, basic operation, tuning, preset programming, care, and troubleshooting for optimal use.

1. Features at a Glance 2. Installation & Power 3. First-Time Setup 4. Specifications 5. Controls and Indicators 6. Basic Operation 7. Tuning & Presets 8. Using Headphones 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with speaker, LCD display, control buttons, headphone jack, battery compartment, and telescopic antenna.

Feature	Description
Telescopic Antenna	For improved FM reception; extend fully.
LCD Display	Shows frequency, band, preset number, battery status.
Headphone Jack	3.5mm stereo jack for private listening.
DC IN Jack	For optional AC adapter (not included).
POWER/SOURCE Button	Turns radio on/off and selects band (AM/FM).
TUNING Buttons	Manual up/down frequency tuning.
PRESET Buttons	Store and recall up to 10 stations (5 per band).
VOLUME Control	Rotary dial or buttons to adjust sound level.
BACKLIGHT Button	Illuminates the LCD display temporarily.

Installation & Power

Unpack and inspect contents. Ensure all parts are present.

Insert Batteries: Open battery compartment, insert batteries observing correct polarity (+/-).
AC Power (Optional): Connect optional AC adapter to DC IN jack, then to wall outlet.
Extend Antenna: Fully extend telescopic antenna for best FM reception.

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

First-Time Setup

Power on the radio and configure initial settings.

Turn On: Press POWER button. The radio will beep and display will light.
Select Band: Press POWER/SOURCE repeatedly to toggle between AM and FM.
Initial Tuning: Use TUNING buttons to find a station.
Set Time/Clock: If equipped, hold CLOCK button to enter setting mode.
Adjust Volume: Turn VOLUME control to a comfortable level.

CAUTION! Place radio on a stable, dry surface away from heat sources and moisture.

Specifications

Model: Sony SRF-46 Portable Radio.
Bands: AM (530-1710 kHz), FM (87.5-108 MHz).
Tuning: Digital PLL synthesizer.
Presets: 10 stations (5 AM, 5 FM).
Power Supply: 2 x AA batteries (UM-3) or DC 3V adapter.
Output: Built-in speaker, 3.5mm stereo headphone jack.
Display: Backlit LCD.
Dimensions: Approx. Width x Height x Depth (mm).
Weight: Approx. weight including batteries.

Controls and Indicators

Front/Top Panel: POWER/SOURCE, TUNING, PRESET buttons, VOLUME, BACKLIGHT.

Display Icons: Band indicator (AM/FM), Preset number, Battery low symbol, Frequency.

Basic Settings: Band selection, Manual tuning, Preset memory, Backlight duration, Sleep timer (if equipped).

Basic Operation

Turning On/Off, adjusting volume, selecting band.

Press POWER to turn on. Default band is FM.
Press POWER/SOURCE to switch to AM.
Rotate VOLUME dial or press VOL +/- to adjust sound.
Press BACKLIGHT to illuminate display for several seconds.

Tip: For best FM reception, orient the radio and fully extend antenna.

Tuning & Presets

Manual tuning and storing favorite stations.

Manual Tune: In desired band, press TUNING up/down to scan frequencies.
Auto Scan (if available): Hold TUNING button to auto-scan for next strong station.
Store Preset: Tune to desired station. Press and hold a PRESET button (1-5) until display confirms.
Recall Preset: Briefly press the corresponding PRESET button.
Clear Preset: Store a new frequency over an existing preset.

WARNING! Presets are stored in memory and retained when power is off, but will be lost if batteries are removed for a long time.

Using Headphones

For private listening, plug standard 3.5mm stereo headphones into the jack. The internal speaker will be disabled automatically. Adjust volume to a safe level to protect hearing.

Care & Maintenance

Use a soft, dry cloth to clean the cabinet. Do not use solvents or abrasive cleaners.

CAUTION! Keep radio away from liquids and extreme temperatures. Do not disassemble the unit.

Regulatory Information

FCC Compliance: This device complies with Part 15 of the FCC Rules. Operation is subject to interference that may cause undesired operation. Sony and the Sony logo are trademarks of Sony Corporation. For support, visit www.sony.com/electronics/support or contact Sony customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power / No display	Dead batteries, incorrect installation	Replace batteries; ensure correct polarity.
Poor FM reception	Antenna not extended, location	Fully extend antenna; move radio near a window.
No sound from speaker	Volume low, headphones plugged in	Increase volume; unplug headphones.
Presets lost	Batteries removed too long	Re-enter preset stations.
Display dim or blank	Backlight off, weak batteries	Press BACKLIGHT; replace batteries.

Reset: Remove batteries for 1 minute to reset microcomputer if unit behaves erratically.

Service: For service, contact authorized Sony service center.