AVSL 170.127 PPA74 - Manual (Page 7)

170.125UK, 170.127UK User Manual
Troubleshooting
No LEDs lit on front panel
Ensure mains is connected properly or battery is charged
Check mains lead and supply voltage are correct
Battery “CHARGE” LED is lit Unit is in re-charging mode – switch power on to operate
Battery “LOW” LED is lit Switch to mains power or switch off until battery is charged
No playback from CD or DVD
Check format is correct (will not play CDROM and some other types)
Press DVD ON/OFF button and use transport controls to check
USB/SD player will not play audio
from media (CM-LIVE models
only)
Press PLAY on transport controls
Check memory device is connected properly (remove and re-insert)
Check file types – standard compressed digital audio files required
Check memory device works on a PC or Mac for standard playback
No output from VHF microphones
(PPA74 only) Check batteries in handheld transmitters
Check handheld transmitters are switched on
Output is very quiet
Turn up MASTER and/or Microphone level controls
Check volume controls are not turned down on remote control
If Battery LOW LED is lit, switch to mains power or charge battery
Press L/R CHANNEL button to check karaoke output mode
Check for quiet recording of media files on USB/SD or CD
Output is very loud or distorted
Check level of input signal is not too high
Reduce Microphone level controls
Reduce MASTER level control
Ensure Hi-Z line level input(s) not connected via XLR
Check for high gain recording of media files on USB/SD or CD
Feedback (loud squealing or howling
from mics)
Face the microphone away from the speaker
Reduce Microphone LEVEL control and ECHO control
Reduce MASTER volume control
Note: for further troubleshooting, refer equipment to qualified service personnel for testing
DISPOSAL: Please disposal of the unserviceable device according to the current statutory requirements.
Errors and omissions excepted.
Copyright© 2013. AVSL Group Ltd.