Brand: MUJI
Category: Audio Player
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for CPD-4
Uploaded: April 20, 2026, 7:43 p.m.
Warranty Information
Changes or modifications not approved by MUJI LIMITED will void the user's warranty.
- Read instructions before operating.
- Store manual for future reference.
- Do not expose to water or moisture.
- Clean with dry cloth only.
- Do not block ventilation openings.
- Avoid heat sources.
- Plug into a properly grounded outlet.
- Protect power cord from damage.
- Use only manufacturer-specified accessories.
- Unplug during lightning storms or long periods of non-use.
- Refer servicing to qualified personnel.
- Do not remove covers.
- Do not install in confined spaces.
- Appliance draws nominal non-operating power.
- Locate near AC outlet for easy plug access.
- Appliance coupler is the disconnect device and shall remain operable.
- Batteries should not be exposed to excessive heat.
- Caution for lithium batteries: risk of explosion if replaced with incorrect type.
Troubleshooting and error codes
| Problem | Possible Cause and Solution |
|---|---|
| No power. | Insert the plug of the AC adaptor into a power socket. Check the connection of the DC power cable and the AC adaptor cable. If the battery of the remote control unit is exhausted, replace it with a new one. |
| I'm pressing the buttons but nothing is working. | Condensation. Wait one hour before using. |
| No sound is coming from the speakers. | The volume is turned down. Adjust the volume. |
| The remote control does not work. | The insulation sheet has been inserted in the battery compartment when shipped from the factory. Pull it out before use. If the battery is exhausted, replace it with a new one. Use the remote control unit within the operation range (5 m/16') and point it at the remote sensor on the main unit. Remove any obstacles between the remote control unit and the main unit. If a bright light is near the unit, turn it off. |
| The sound is noisy. | The unit is too close to a TV or similar device. Relocate it away from the interfering device or turn it off. |
| Cannot insert the CD into the unit. | Remove dust or obstacles from the central hub of the unit. |
| Cannot play. | Insert a disc with the label side facing you. You cannot play back unfinalized CD-R/RW discs. Finalize such a disc using a CD recorder and try again. Depending on the disc type, it may not be possible to play back. |
| The sound stutters or breaks up. | The unit is placed somewhere where there is a lot of vibration. Put it somewhere with less vibration. The disc is dirty. Clean the disc. |
| MP3/WMA Cannot play. | Check the MP3/WMA file extension. |
| Cannot listen to any station, or the signal is too weak. | Tune in to a station properly. Change the position or orientation of the main unit until you receive the station clearly. Rotate the FM antenna until you receive the station clearly. |