Troubleshooting, Symptom Possible Causes Solution

Troubleshooting

If you are having problems operating the AM-145, 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 tech. service center at 626-820-0670.

Symptom	Possible Causes	Solution
Symptom	Possible Causes	Solution

Will not turn on	AC power adapter cord is	Check both the AC adapter connection as well as the AC outlet connection.
	incorrectly attached or not	Check the fuse below the AC adapter and see if it is broken.
	plugged into outlet
No audio can be	Incorrect input source selected	Check to make sure the correct corresponding button is pressed on the input
heard, audio signal		selector in relation to your audio source.
meter shows signal
	MUSIC VOL control is down	Check to see if MUSIC VOL control is all the way down. If so, turn the knob slowly
		clockwise.

	Poor or incorrect output	Double check all output connections to speakers or other units. Try using another
	connection to speakers or other	set of cables/cords. Make sure to turn POWER OFF before reconnecting cables.
	external units, or bad/defective
	cables, wires or connectors
No audio can be	Poor or incorrect input	Double check all input connections from audio source units. Try using another set
heard, audio signal	connection from audio source	of cables/cords. Make sure to turn POWER OFF before reconnecting cables.
meter DOES NOT	unit, or bad/defective cables,
show signal	wires or connectors
No microphone	Microphone controls are turned	Check MIC MASTER VOL and all MIC VOL controls to see if they are turned
signal can be heard	down	down. If so, turn the knob slowly clockwise.

	Poor or incorrect input	Double check all microphone connections. Try using another cable/cord. Make
	connection from microphone, or	sure to turn MIC MASTER VOL down before reconnecting cables.
	bad/defective cables, wires or
	connectors.

Unpleasant howling	Microphone feedback	Place microphones further away from speakers. Face microphones away from
and screeching heard		speakers.
from speakers
Remote control not	Batteries are exhausted or	Replace with fresh batteries or double check battery positioning.
functioning	positioned incorrectly

	Remote is out of range or there	Move closer to the AM-825 or make sure no objects are obstructing your view of
	is an obstruction	the unit.