Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Axess CKRD3803 Digital AM/FM Clock Radio. Please read this manual thoroughly before using the device to ensure proper function and to maximize your user experience.
Product Overview
The Axess CKRD3803 is a versatile clock radio featuring a 1.2-inch red LED display, digital AM/FM radio, dual alarm settings, and a calendar function. It includes an Aux input jack for external audio devices and a battery backup system to maintain settings during power interruptions.

Image: Front view of the Axess CKRD3803 Digital AM/FM Clock Radio. The device is black with a large red LED display showing '10:18'. Indicators for PM, Buzzer, Alarm 1, Radio, and Alarm 2 are visible on either side of the time display.
Key Features:
- Large 1.2-inch Red LED Display with two-step dimmer.
- Digital AM/FM Radio.
- Dual Alarm with Buzzer or Radio options.
- Sleep and Snooze Functions.
- Calendar Function.
- Auxiliary Input Jack.
- Battery Backup (2 x AAA batteries, not included) for power outages.
Setup
Power Connection:
- Uncoil the built-in power cord (pigtail antenna).
- Plug the power cord into a standard AC wall outlet (120V, 60Hz).
- The LED display will light up, indicating the unit is receiving power.
Battery Backup Installation:
For uninterrupted timekeeping during power outages, install backup batteries.
- Locate the battery compartment on the bottom of the unit.
- Open the battery compartment cover.
- Insert two (2) AAA batteries (not included), observing the correct polarity (+ and -) as indicated inside the compartment.
- Close the battery compartment cover securely.
Note: Batteries are for backup only and will not power the display or radio functions during a power outage. They only preserve time and alarm settings.
Operating Instructions
Setting the Time:
- Press and hold the TIME SET button until the hour digits begin to flash.
- Press the HOUR button repeatedly to adjust the hour. Observe the 'PM' indicator for correct AM/PM setting.
- Press the MINUTE button repeatedly to adjust the minutes.
- To switch between 12-hour and 24-hour (military) time format, press the 12/24H button while the time is flashing.
- Press the TIME SET button again to confirm and exit time setting mode.
Setting the Alarm (Alarm 1 and Alarm 2):
The CKRD3803 features two independent alarms.
- Press and hold the ALARM 1 SET (or ALARM 2 SET) button until the alarm hour digits begin to flash.
- Press the HOUR button to adjust the alarm hour. Observe the 'PM' indicator.
- Press the MINUTE button to adjust the alarm minutes.
- Press the ALARM 1 SET (or ALARM 2 SET) button again to confirm the time.
- Immediately after confirming the time, press the ALARM 1 MODE (or ALARM 2 MODE) button repeatedly to select the alarm source: BUZZER or RADIO. The corresponding indicator light will illuminate.
- To activate or deactivate an alarm, press the ALARM 1 ON/OFF (or ALARM 2 ON/OFF) button. The alarm indicator will light up when active.
Radio Operation:
- Press the RADIO ON/OFF button to turn the radio on.
- Press the AM/FM button to switch between AM and FM bands.
- Press the TUNE + or TUNE - buttons to manually tune to a desired frequency.
- Press and hold TUNE + or TUNE - for automatic station scanning.
- Adjust the volume using the VOLUME + or VOLUME - buttons.
- To improve FM reception, extend the pigtail antenna fully. For AM reception, rotate the unit for best signal.
- Press the RADIO ON/OFF button again to turn the radio off.
Snooze Function:
When an alarm sounds, press the SNOOZE button to temporarily silence the alarm for approximately 9 minutes. The alarm will sound again after this period.
Sleep Function:
To fall asleep to the radio, press the SLEEP button while the radio is playing. Repeatedly press the SLEEP button to cycle through sleep timer options (e.g., 90, 60, 30, 15 minutes, or OFF). The radio will automatically turn off after the selected time.
Display Dimmer:
Press the DIMMER button to adjust the brightness of the LED display between two levels (bright and dim).
Auxiliary Input:
Connect an external audio device (e.g., MP3 player, smartphone) to the AUX IN jack on the unit using a 3.5mm audio cable (not included). The audio from the external device will play through the clock radio's speaker.
Maintenance
To ensure the longevity and optimal performance of your Axess CKRD3803, follow these simple maintenance guidelines:
- Cleaning: Wipe the unit with a soft, dry cloth. Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.
- Power Cord: Regularly check the power cord for any signs of damage. If damaged, discontinue use and seek professional repair.
- Battery Replacement: Replace backup batteries annually or when the unit is stored for extended periods to prevent leakage.
- Placement: Avoid placing the unit in direct sunlight, near heat sources, or in areas with high humidity or dust.
Troubleshooting
If you encounter issues with your Axess CKRD3803, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank. | No AC power; Dimmer set to lowest setting. | Ensure power cord is securely plugged in. Press the DIMMER button to increase brightness. |
| Cannot set time/alarm. | Buttons not pressed correctly or in sequence. | Refer to the "Setting the Time" and "Setting the Alarm" sections for precise steps. Ensure you press and hold the SET button until digits flash. |
| Alarm does not sound. | Alarm not activated; Volume too low (for radio alarm). | Ensure the alarm is set and the alarm indicator light is on. For radio alarm, increase radio volume. |
| Poor radio reception. | Antenna not positioned correctly; Weak signal. | Fully extend the pigtail antenna for FM. Rotate the unit for optimal AM reception. Try a different location. |
| Time/settings lost after power outage. | Backup batteries not installed or depleted. | Install fresh AAA batteries in the battery compartment. |
| Stuck in 24-hour (military) time. | 12/24H setting not adjusted during time setup. | Enter time setting mode (press and hold TIME SET). While digits are flashing, press the 12/24H button to toggle between formats. |
Specifications
- Model: CKRD3803
- Display: 1.2-inch Red LED
- Power Source: AC 120V ~ 60Hz
- Battery Backup: 2 x AAA batteries (not included)
- Radio Bands: AM/FM
- Dimensions: 2.95 x 6.89 x 4.21 inches (H x W x D)
- Weight: 1 pound
- Material: Acrylonitrile Butadiene Styrene
- Special Features: Dual Alarm, Calendar Function, Aux-in, Sleep/Snooze, Dimmer
Warranty and Support
For warranty information or technical support, please refer to the documentation included with your purchase or visit the official Axess website. Keep your purchase receipt as proof of purchase for any warranty claims.





