Troubleshooting
If you are having problems operating the AM-888, or suspect something is wrong with the unit,
please check the troubleshoot list below to see if the issue is a result of incorrect operation
rather than equipment malfunction. If you are still unable to resolve the problem, please
contact our Acesonic service center at 626-820-0670.
Symptom
Possible Causes
Solution
Will not turn on
AC power adapter cord is
incorrectly attached or not
plugged into outlet
Incorrect input source selected
Check both the AC adapter connection as well as the AC outlet connection.
Check to make sure the correct corresponding button is pressed on the input
selector in relation to your audio source.
No audio can be
heard, audio signal
meter shows signal
MUTE button is ON, or MUSIC
VOL control is down
Poor or incorrect output
connection to speakers or other
external units, or bad/defective
cables, wires or connectors
Poor or incorrect input
connection from audio source
unit, or bad/defective cables,
wires or connectors
Press the MUTE button once or check to see if MUSIC VOL control is all the way
down. If so, turn the knob slowly clockwise.
Double check all output connections to speakers or other units. Try using another
set of cables/cords. Make sure to turn POWER OFF before reconnecting cables.
Double check all input connections from audio source units. Try using another set
of cables/cords. Make sure to turn POWER OFF before reconnecting cables.
No audio can be
heard, audio signal
meter DOES NOT
show signal
No microphone
signal can be heard
Microphone controls are turned
down
Check MIC MASTER VOL and all MIC VOL controls to see if they are turned
down. If so, turn the knob slowly clockwise.
Poor or incorrect input
connection from microphone, or
bad/defective cables, wires or
connectors.
Double check all microphone connections. Try using another cable/cord. Make
sure to turn MIC MASTER VOL down before reconnecting cables.
Music sounds hollow
or distant
PARTNER function is ON
If you do not want to eliminate vocals from the source, press the MULTI AUDIO
button once to return music to original characteristics.
No vocals present in
source that normally
contains vocals
PARTNER button is ON, or
RIGHT channel button selected
on a multiplex* source
Press the
button once, or press the STEREO button once.
MULTI AUDIO
Unpleasant howling
and screeching heard
from speakers
Microphone feedback
Place microphones further away from speakers. Face microphones away from
speakers.
Remote control not
functioning
Batteries are exhausted or
positioned incorrectly
Replace with fresh batteries or double check battery positioning.
Remote is out of range or there
is an obstruction
Move closer to the AM-888 or make sure no objects are obstructing your view of
the unit.
15
* Multiplex refers to karaoke music designed to allow lead vocals to be turned on/off by
isolating them to just the left channel.
