18
TROUBLESHOOTING
1. NO SOUND: Power indicator is Off.
REMEDY:
• Check the AC Plug.
• Ensure that the AC outlet works by testing other devices. If
too many amplifiers are used on one outlet, the building's
circuit breaker may trip and shut off power.
• Check the overload switch located on rear panel.
• An amplifier that keeps shutting off may have a serious
internal fault. Turn it off, remove AC power, and have the
amplifier serviced by a qualified technician.
2. NO SOUND: The power indicator light is On but -32dB
light (signal light) is Off.
REMEDY:
If the POWER indicator LED is On and the fan is running,
but the signal LEDs indicate no signal, check the input. Make
sure the signal source is operating and try another input
cable. Connect the source to another channel or amplifier to
confirm its operation.
Check audio cables or microphone cables.
Use a better audio cable or 3pin XLR microphone cable.
Ensure microphone is On.
Check the microphone volume.
3. 0dB (OVERLOAD INDICATOR) IS ON & SOUND IS
ABNORMAL
REMEDY:
Sound of music signal output amplitude is too high.
The gain level is set too high.
Ensure the output connection is connected correctly and
then reboot the machine.
4. SIGNAL LED IS NOT RESPONDING TO SIGNAL LEVEL
REMEDY:
If the SIGNAL indicator is lighting normally, the
problem may be between the amplifier and the speaker.
Check the speaker wiring for breaks. Try another speaker
and cable.
Troubleshooting
5. BAD AUDIO OR MICROPHONE SOUNDS
REMEDY:
Check the source of audio (CD, DVD) to see if it’s
scratched.
Check audio cables or microphone cables.
Use a better audio cable or 3pin XLR microphone cable.
6. THERE IS NO PICTURE
REMEDY:
Check to see if video sources are selected accordingly.
Check to see if plugged in the video cables are plugged in.
Check TV or display monitor.
7. VIDEO IS FLICKERING
REMEDY:
Check to see if the AV cable is damaged.
Use a better AV cable.
We recommend connecting videos to the TV or monitor
directly for best results.
8. POWER CAN NOT BE TURNED ON
REMEDY:
Check to see if unit is plugged in properly.
Check power cable.
9. PROTECTION FOR AUDIO/VIDEO EQUIPMENT
Before hooking up or disconnecting any audio/video equip
-
ment, turn off the power for all equipment. Otherwise, it may
cause black spots to appear on the LCD or Plasma TV screen.
10. AMPLIFIER SHUT DOWN/INTERFERENCE NOISE
CAUSE:
The amplifier turned On but there is no music coming
out from the speaker powered output channels.
REMEDY:
Ensure that the AC-power supply is connected to the
correct voltage level according to your region.
Summary of Contents for A-3
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