
TECH NOTE
Electrical pulses transmitted by the wallbox are
generated by a contact arm rotating on a selector
disc containing contact points. When these
contacts become gummed up and corroded, the
wallbox may not make the proper selection.
Occasionally, these contacts require cleaning.
They can be cleaned with a cloth saturated with
isopropyl alcohol. Do not use emery cloth or
sandpaper as this may remove the plating.
On really worn wallboxes, where basic cleaning
doesn’t seem to cure the problem, you may have
successful results by using a low abrasive polish,
such as “Scratch Out” or “Brasso”. This will make
the contact surfaces shiny and smooth.
TROUBLESHOOTING
Symptom Possible Cause
After the WB-MP3 is powered up, the front panel red and green
LED's are continuously on. The Compact Flash card format is not FAT32.
No folders or song files were found on the SD card.
Check the player board LED, it may be flashing an error code.
The front panel green LED is continuously on. The wallbox signal is always on (wallbox stuck or defective).
Unplug the wallbox connector to verify.
When selections are made on the wallbox, no songs are played. Wrong wallbox type was selected.
No wallbox signal is being received. (verify green LED blinks)
Touch a 9-volt battery to wallbox wires, verify green LED blink.
The song selection was not found, check the SD memory card.
After a wallbox selection was made, the wrong song was played. Wrong wallbox type was selected.
Wallbox signal is erratic. (see TECH NOTE below)
Verify song selections are correct on the SD memory card.
Player board LED error codes. 1 blink, pause, 1 blink ...
2 blinks, pause, 2 blinks ...
3 blinks, pause, 3 blinks ...
4 blinks, pause, 4 blinks ...
5 blinks, pause, 5 blinks ...
System Error (Make sure SD memory card inserted correctly).
Format Error (Make sure SD memory card has FAT32 format).
No Folders (Make sure you have created folders on SD card).
No MP3 Files (No folders inside folders & files must be MP3).
Memory Card Error (Player received error status from SD card).
The red LED is slow blinking, but there is no sound. Volume level is set low, press remote volume up button.
Check the player board LED, it should also be slow blinking.
Check for audio using headphone or ear bud on line-out cable.
No operation from the wireless remote. Batteries low or reprogram remote control setup code.
Hold volume button and check player board LED fast blinks.
Press CH- and check for green LED flash.
Wallbox Wiring Diagrams
CAUTION: Do not attempt to hook up a wallbox power supply if you are not familiar with
electrical wiring, consult with a qualified person or an electrician. Do not leave any wires
exposed, always use wire-nuts or electrical tape on all connections. Improper wiring can result
in a fire or shock hazard.