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It seems the device is working, but it doesn't emit voice.
• Setting of volume controls is not correct.
- Make sure nor the main volume control button (VOLUME), neither the direct controllers of the inputs (PREV/V-, MICVOL) are set tominimumposition.
• Connection of audio cable is incorrect.
- Check the correct connection of audio cables, aswell their wiring according to the standards.
MP3 playback
Playing is not started from the conforming storage device.
• If there are USB and SD sources connected at the same time, not the desired one is selected.
- Press MODE button briefly.
MP3 playing cannot operate.
• Writing error occurred. MP3 format is not compatible.
- Makesure the format of MP3 file is correct!
• Contact problem of USB/SD slot.
- Makesure there is no strange objects got into the port/slot. Clean it carefully with adry brush, if necessary.
- Inappropriate connection (e.g. inclined or rough) can cause problem as well. Reconnect the external storage.
• External device is incorrect or different from the prescribed ones.
- Because of differences in production, same type of USB/SD/SDHC/MMC memory devices maydiffer from each other, which can influence the
usages.
Playback is noisy.
• Writing error occurred. MP3 format is not compatible.
- Makesure the MP3 format is correct.
• Data storage device is defected or contact error occurred during connection.
- Check the data storage compliance and connection.
• Data copying error occurred.
- Check the used compressing software and computer.
Voice of wireless microphone is not audible.
• Setting of MIC VOLcontroller is not correct.
- Check the button not to set it tominimumposition.
- Check themicrophone if it is switched onor off, and correct battery is included.
- Check the operation range if it is not beyond the recommended, or there is other wireless device whichmaydisturb the operation.