Lenco CR-335 FM Radio Alarm Clock User Manual

Introduction

Thank you for choosing the Lenco CR-335 FM Radio Alarm Clock. This manual provides detailed instructions to help you set up, operate, and maintain your device. The CR-335 features an FM radio, a 12/24-hour format LED display with dimming, a sleep timer, and a dual alarm function with options for radio or buzzer. It also includes a motion sensor for contactless snooze and automatic daylight saving time adjustment.

Lenco CR-335 FM Radio Alarm Clock front view

Figure 1: Front view of the Lenco CR-335 FM Radio Alarm Clock, displaying the time in red LED digits.

Safety Information

Please read these safety instructions carefully before using the device and keep them for future reference.

Do not expose the unit to rain or moisture to prevent fire or electric shock.
Ensure proper ventilation around the unit. Do not block ventilation openings.
Avoid placing the unit near heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
Use only attachments/accessories specified by the manufacturer.
Unplug the unit during lightning storms or when unused for long periods.
Refer all servicing to qualified service personnel.

Product Overview

The Lenco CR-335 features a clear LED display and intuitive controls for easy operation.

Front Panel

LED Display: Shows time, alarm status, and radio frequency.
PM Indicator: Lights up when time is in PM (12-hour format).
RADIO Indicator: Lights up when radio is active.
Motion Sensor: Located on the top surface for contactless snooze.

Top Panel Controls

TIME/DATE/YEAR: Buttons for setting time and date.
TUNING/VOLUME: Knobs or buttons for adjusting radio frequency and volume.
ALARM 1/ALARM 2: Buttons for setting and activating alarms.
SNOOZE/SLEEP: Button for snooze function and sleep timer.
DIMMER: Button to adjust display brightness.

Side/Rear Panel

Power Input: For connecting the AC adapter.
Battery Compartment: For backup batteries (if applicable).
FM Antenna: Wire antenna for radio reception.
Alarm Source Switches (RADIO/BUZZER/OFF): Sliders to select alarm sound for Alarm 1 and Alarm 2.

Setup

1. Power Connection

Connect the AC adapter to the power input jack on the back of the unit.
Plug the AC adapter into a standard wall outlet.
For battery backup (to retain settings during power outages), insert the required batteries (e.g., 2 x AAA, not included) into the battery compartment, observing polarity.

2. Antenna Setup

Extend the FM wire antenna fully and position it for optimal FM radio reception. Avoid coiling the antenna or placing it near other electronic devices that may cause interference.

3. Initial Time Setting (Radio-Controlled Clock)

The Lenco CR-335 features a radio-controlled clock. Upon initial power-up, the unit will attempt to synchronize its time with the radio signal. This process may take a few minutes. Ensure the unit is placed in an area with good reception.

Once synchronized, the time will be automatically set.
The clock will automatically adjust for daylight saving time.

Operating Instructions

Setting the Time Manually (if radio control fails or is not desired)

Press and hold the TIME SET button (or equivalent, refer to specific button labels on your unit). The hour digits will flash.
Use the HOUR or TUNING UP/DOWN buttons to adjust the hour.
Press TIME SET again. The minute digits will flash.
Use the MINUTE or TUNING UP/DOWN buttons to adjust the minutes.
Press TIME SET once more to confirm.
To switch between 12-hour and 24-hour format, press the 12/24H button (if available) or cycle through time settings. The PM indicator will show for 12-hour PM times.

Setting the Alarm (Dual Alarm)

The CR-335 allows for two independent alarms (Alarm 1 and Alarm 2).

Select Alarm Source: On the side/rear of the unit, use the slider switch for ALARM 1 or ALARM 2 to select RADIO, BUZZER, or OFF.
Set Alarm Time:
- Press and hold the ALARM 1 or ALARM 2 button. The alarm hour digits will flash.
- Use the HOUR or TUNING UP/DOWN buttons to set the desired alarm hour.
- Press the ALARM 1 or ALARM 2 button again. The alarm minute digits will flash.
- Use the MINUTE or TUNING UP/DOWN buttons to set the desired alarm minutes.
- Press the ALARM 1 or ALARM 2 button once more to confirm.
Set Alarm Frequency (Weekdays/Weekend/Week): After setting the time, some models allow you to select the alarm frequency. Use the appropriate button (e.g., ALARM MODE) to cycle through options like "Every Day," "Weekdays Only," or "Weekend Only."
An alarm indicator (e.g., "ALARM 1" or "ALARM 2" icon) will appear on the display when the alarm is active.

Snooze Function (Wave Snooze)

When an alarm sounds, you can temporarily silence it using the wave snooze function.

To activate snooze, simply wave your hand over the motion sensor located on the top of the unit. The alarm will pause for a set period (e.g., 9 minutes) and then sound again.
Alternatively, press the SNOOZE button to activate the snooze function.
To cancel the alarm completely, press the ALARM OFF button or slide the alarm source switch to OFF.

Hand waving over Lenco CR-335 for wave snooze

Figure 2: Illustrates the wave snooze function, where a hand motion over the device temporarily silences the alarm.

FM Radio Operation

Press the RADIO ON/OFF button to turn on the FM radio. The RADIO indicator will light up.
Use the TUNING knob or TUNING UP/DOWN buttons to select your desired FM station. The frequency will be displayed on the LED screen.
Adjust the volume using the VOLUME knob or VOLUME UP/DOWN buttons.
To turn off the radio, press the RADIO ON/OFF button again.

Sleep Timer

The sleep timer allows you to fall asleep to the radio, which will automatically turn off after a set period.

While the radio is playing, press the SLEEP button repeatedly to cycle through available sleep times (e.g., 10, 30, 60, 90 minutes, or OFF).
The radio will automatically turn off after the selected duration.

Display Dimmer

Adjust the brightness of the LED display to your preference.

Press the DIMMER button to cycle through different brightness levels (e.g., High, Medium, Low, Off).

Maintenance

Cleaning

Always unplug the unit from the power outlet before cleaning.
Use a soft, dry cloth to clean the exterior surfaces.
Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.

Battery Replacement

If the unit loses time during a power outage, the backup batteries may need replacement.
Open the battery compartment cover on the bottom or rear of the unit.
Remove the old batteries and dispose of them properly.
Insert new batteries of the specified type (e.g., AAA), ensuring correct polarity (+/-).
Close the battery compartment cover securely.

Troubleshooting

Problem	Possible Cause	Solution
Unit does not power on.	Power cord not securely connected.	Check that the AC adapter is firmly plugged into the unit and the wall outlet.
No radio reception or poor sound.	FM antenna not extended or positioned correctly. Interference from other devices.	Fully extend and reposition the FM wire antenna. Move the unit away from other electronic devices.
Alarm does not sound.	Alarm not activated or set correctly. Alarm volume too low. Alarm source set to OFF.	Verify alarm settings and ensure the alarm indicator is visible. Check alarm volume. Ensure the alarm source switch is set to RADIO or BUZZER.
Wave snooze function not working.	Obstruction over the motion sensor. Sensor malfunction.	Ensure there is no obstruction over the motion sensor. Try using the physical SNOOZE button as an alternative.
Time is incorrect after power outage.	Backup batteries are depleted or not installed.	Replace backup batteries with new ones. Ensure they are installed with correct polarity.
Difficulty with slider switches (e.g., alarm source).	Mechanical issue with the switch.	Operate switches gently. If a switch breaks, contact customer support for assistance.

Specifications

Model: CR-335
Dimensions (W x H x D): 18 cm x 7 cm x 12 cm (approximately 7.1 x 2.8 x 4.7 inches)
Weight: 670 g (approximately 1.48 lbs)
Power Source: AC adapter (main power), Battery-powered (backup)
Supported Radio Bands: FM
Display: LED, 12/24-hour format, Dimmable
Special Features: Dual Alarm, Sleep Timer, Wave Snooze (Motion Sensor), Radio-Controlled Clock, Automatic Daylight Saving Time Adjustment

Warranty and Support

Lenco products are designed and manufactured to the highest quality standards. In the unlikely event of a problem with your product, please contact your retailer or Lenco customer support for assistance. Keep your proof of purchase for warranty claims.

For further support, product registration, and frequently asked questions, please visit the official Lenco website.

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Lenco CR-335