Sony Walkman SRF-H3 Radio User Manual

The Sony Walkman SRF-H3 is a portable AM/FM stereo radio with digital tuning, 20 station presets (10 AM, 10 FM), LCD display with backlight, telescopic antenna, stereo headphone output, and battery operation. Features include auto-scan tuning, manual tuning, sleep timer, and lock switch. Powered by 2 AA batteries. 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 Headphones 7. Tuning and Presets 8. Battery Information 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: LCD display with backlight, telescopic antenna, headphone jack, control buttons, battery compartment.

Feature	Description
Telescopic Antenna	For improved FM reception; extend fully
LCD Display	Shows frequency, band, preset number, battery level
Headphone Jack (3.5mm)	For stereo headphone connection
Power/Band Button	Turns radio on/off and switches between AM/FM bands
Tuning Buttons	Manual up/down tuning and auto-scan
Preset Buttons	Store and recall up to 20 stations
Sleep Timer	Auto power-off after set time
Lock Switch	Prevents accidental button presses
Battery Compartment	Holds 2 AA batteries
Belt Clip	For portable carrying

Installation

Unpack and inspect contents. Ensure all parts are present.

Insert batteries: Open battery compartment, insert 2 AA batteries observing correct polarity.
Extend antenna: Fully extend telescopic antenna for best FM reception.
Connect headphones: Plug stereo headphones into 3.5mm jack.
Turn on: Press POWER/BAND button to start.

WARNING! Use correct battery type; do not mix old and new batteries. Keep away from water.

First-Time Setup

Power on radio; follow these steps for initial use.

Select band: Press POWER/BAND to choose AM or FM.
Auto-scan tuning: Press and hold TUNING+ button to scan and stop at first strong station.
Set presets: Tune to desired station, press and hold a preset button (1-10) for 2 seconds.
Adjust volume: Use headphones volume control or device volume.
Set sleep timer: Press SLEEP repeatedly to set auto-off time (15-90 minutes).

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

Specifications

Model: Sony Walkman SRF-H3.
Bands: AM (530-1710 kHz), FM (87.5-108 MHz).
Tuning: Digital PLL synthesizer.
Presets: 20 total (10 AM, 10 FM).
Display: LCD with EL backlight.
Audio Output: Stereo via headphone jack.
Power Source: 2 AA batteries (DC 3V).
Battery Life: Approx. 50 hours (backlight off).
Dimensions: Approx. 4.1" x 2.7" x 0.9".
Weight: Approx. 4.2 oz (including batteries).

Controls and Settings

Front panel controls: POWER/BAND, TUNING +/-, PRESET 1-10, SLEEP, LOCK switch.

Display indicators: Band (AM/FM), frequency, preset number, battery level, sleep timer.

Tuning: Manual (press TUNING +/-) or auto-scan (hold TUNING+). Presets: Store by holding preset button; recall by pressing once. Sleep timer: Press SLEEP to cycle through 15, 30, 60, 90 minutes, OFF. Lock: Slide LOCK switch to prevent accidental operation.

Connecting Headphones

Use standard 3.5mm stereo headphones.

Ensure radio is off or volume is low.
Insert headphone plug fully into jack.
Adjust volume using headphone control or source device.
For best stereo separation, ensure headphones are properly seated.

Tip: Use quality headphones for optimal sound. Do not use while driving or cycling.

Tuning and Presets

Supports manual tuning, auto-scan, and preset memory.

Select band: Press POWER/BAND to toggle AM/FM.
Manual tuning: Press TUNING+ or TUNING- to change frequency in steps.
Auto-scan: Hold TUNING+ to scan upward; stops at strong station; press again to continue.
Store preset: Tune to station, hold desired preset button (1-10) until beep.
Recall preset: Press corresponding preset button.
Clear preset: Hold preset button while on different station.

WARNING! FM reception requires extended antenna; AM works best without headphones connected.

Battery Information

Uses 2 AA batteries (alkaline recommended).

Battery life: Approx. 50 hours (backlight off), 30 hours (backlight on).
Low battery indicator: Display shows empty battery icon.
Replacement: Open compartment, remove old batteries, insert new ones with correct polarity.
Storage: Remove batteries if not using for extended period.

CAUTION! Do not recharge non-rechargeable batteries; dispose of properly.

Care & Cleaning

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

CAUTION! Do not use solvents or abrasives; keep away from magnets and heat sources.

Regulatory Information

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

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Dead batteries	Replace with fresh AA batteries; check polarity.
Poor FM reception	Antenna not extended	Fully extend telescopic antenna; move location.
No sound from headphones	Volume low/connection	Increase volume; ensure headphone plug fully inserted.
Presets not saving	Batteries low	Replace batteries; reprogram presets.
Display dim or blank	Backlight off/batteries	Check battery level; ensure in well-lit area.
Buttons not responding	Lock switch engaged	Slide LOCK switch to unlock position.

Reset: Remove batteries for 1 minute, then reinsert.

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