Introduction
Thank you for purchasing the Memorex MP3221 Sport Stereo Portable CD Boombox. This device is designed to provide versatile audio playback from CDs, AM/FM radio, and external audio devices via its auxiliary input. This manual provides essential information for safe operation, setup, and maintenance of your boombox.
Safety Information
- Read all instructions before operating the unit.
- Keep this manual for future reference.
- Do not expose the unit to rain or moisture.
- Do not block any ventilation openings.
- 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 Memorex MP3221 boombox features a top-loading CD player, AM/FM radio tuner, and an auxiliary input jack. It can be powered by AC current or batteries for portability.

Image: Front view of the Memorex MP3221 Sport Stereo Portable CD Boombox, showing the speaker grilles, control panel, and CD compartment.
Key Components:
- CD Compartment: Top-loading for CD/CD-R/CD-RW discs.
- Control Panel: Buttons for CD playback, radio tuning, volume.
- AM/FM Tuner: Dial for selecting radio stations.
- Auxiliary Input Jack: For connecting external audio devices.
- AC Power Input: For connecting to a wall outlet.
- Battery Compartment: Located on the bottom for portable power.
Setup
Powering the Unit:
Your boombox can be powered by either AC power or batteries.
AC Power:
- Ensure the unit is turned off.
- Connect the supplied AC power cord to the AC power input jack on the back of the boombox.
- Plug the other end of the AC power cord into a standard wall outlet.
Battery Power:
For portable use, install 6 'C' size batteries (not included).
- Locate the battery compartment on the bottom of the unit.
- Open the battery compartment cover.
- Insert 6 'C' size batteries, ensuring correct polarity (+/-) as indicated inside the compartment.
- Close the battery compartment cover securely.
Note: When the AC power cord is connected, battery power is automatically disconnected. Remove batteries if the unit will not be used for an extended period to prevent leakage.
Operating Instructions
CD Player Operation:
- Open the CD compartment door by gently lifting it.
- Place a CD (CD/CD-R/CD-RW) onto the center spindle with the label side facing up.
- Close the CD compartment door.
- Set the Function Selector to 'CD'.
- Press the PLAY/PAUSE button to start playback.
- Use the STOP button to stop playback.
- Use the SKIP/SEARCH buttons to navigate between tracks or fast forward/rewind within a track.
- Adjust the VOLUME knob to your desired listening level.
AM/FM Radio Operation:
- Set the Function Selector to 'AM' or 'FM'.
- Extend the FM telescopic antenna for better FM reception. For AM, rotate the unit for best reception.
- Rotate the TUNING knob to select your desired radio station.
- Adjust the VOLUME knob to your desired listening level.
Auxiliary Input Operation:
Connect an external audio device (e.g., MP3 player, smartphone) to the boombox.
- Connect one end of a 3.5mm audio cable (not included) to the headphone jack or line-out jack of your external audio device.
- Connect the other end of the audio cable to the AUX IN jack on the boombox.
- Set the Function Selector to 'AUX'.
- Start playback on your external audio device.
- Adjust the VOLUME knob on the boombox and the volume on your external device for optimal sound.
Maintenance
Cleaning the Unit:
- Wipe the exterior of the unit with a soft, damp cloth.
- Do not use abrasive cleaners or solvents.
- For the CD lens, use a specialized CD lens cleaner disc.
Battery Care:
- Remove batteries if the unit will not be used for an extended period to prevent corrosion.
- Do not mix old and new batteries, or different types of batteries.
- Dispose of used batteries responsibly according to local regulations.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | AC cord not connected; Batteries depleted or incorrectly installed. | Check AC cord connection; Replace batteries or ensure correct polarity. |
| CD does not play / skips | CD is dirty or scratched; CD inserted incorrectly; Unit in wrong function mode. | Clean or replace CD; Reinsert CD label side up; Set Function Selector to 'CD'. |
| Poor radio reception | Antenna not extended; Unit position. | Extend FM antenna; Rotate unit for AM reception; Try different location. |
| No sound from AUX input | Cable not connected; Wrong function mode; Volume too low. | Ensure AUX cable is securely connected; Set Function Selector to 'AUX'; Increase volume on boombox and external device. |
Specifications
- Model: MP3221 (Item model number: 02810)
- Power Source: AC 120V ~ 60Hz or 6 x 'C' size batteries (DC 9V)
- CD Compatibility: CD, CD-R, CD-RW
- Radio Frequencies: AM/FM
- Connectivity: 3.5mm Auxiliary Input
- Speaker Type: Stereo
- Product Dimensions (L x W x H): 11.5 x 7.1 x 11.1 inches
- Item Weight: 3.64 pounds
- Manufacturer: DPI, Inc
Warranty Information
Memorex products are manufactured and marketed by DPI, Inc. This product is covered by a limited warranty against defects in material or workmanship for a period of 90 days from the date of original purchase. This warranty does not cover damage caused by misuse, neglect, accident, improper operation, or unauthorized repair. Please retain your proof of purchase for warranty claims.
Support
For further assistance, troubleshooting, or warranty inquiries, please contact Memorex customer support. Refer to the contact information provided in the packaging or visit the official Memorex website for the most up-to-date support details.
Online Support: www.memorex.com/support (Example link, please verify official website)





