AmpliVox SW905 Manuale Utente

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

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Problem 

Items to check 

Unit will not turn on 

•  Is unit plugged in? 
•  Are batteries charged? 

•  Are fuses blown? 

Unit operates on AC but not on battery 

•  Check battery terminals 

•  Check 10A fuse 

Sound is distorted 

•  If “Maximum Output” is lit, turn 

down volume 

•  If using wireless mic, is red ‘Audio 

Peak’ lit?  If so, signal (such as 
voice) is too strong.  Move 
microphone farther away from 
source. 

•  Turn down input source (such as 

keyboards, etc.) since the output of 
some devices may be too high 

•  Check for debris on speaker cone 

(sand, etc.) 

Sound is muffled 

•  Bass too high 
•  Treble too low 

Loud squealing sound coming from unit 

•  “Feedback” occurs when a 

microphone is too close to the 
speaker or gain is too high.  Move 
microphone farther away from 
speakers and/or turn down channel 
gain. 

Power is on, but no sound 

•  check volume levels for each 

channel and main volume 

•  if using wireless, be sure 

receiver(s) and/or transmitter 
battery is installed and/or is on 

•  If using “line insert”, loop must be 

completed.  See “special features” 
section. 

•  Check speaker connection 

•  If “Maximum Output” is lit, 

replace power amplifier board 

Microphone signal is weak 

•  If mic has batteries, check batteries 

in microphone 

•  Turn on phantom power if 

applicable 

•  Check cables/connectors 
•  Is Mic/Line switch in proper 

position? 

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