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Troubleshooting
TROUBLESHOOTING
1. SYMPTOM: NO POWER
Possible causes:
•
Loose power cable
•
Fuse failure
•
Improper power cable
•
Impact damage
Remedy:
A.
The product uses standard A/C power cable housing that
fits snug onto the connection; be sure the cable is inserted
completely.
B.
A replaceable safety fuse protects the M-12 if there is a
power spike or a short circuit. If the fuse fails, replacement is
needed.
C.
A three prong A/C power cable comes standard with the
M-12; in some occasions, the grounding prong is clipped off
in order to fit certain wall plugs. The removal of the
Grounding plug may cause internal damage to the M-8
and/or the personal injuries, so be sure to use a proper
3-prong wall plug or UL certified adapter. (removing the
safety grounding prong voids warranty on the M-12)
D.
If the product received significant impact damage and no
longer operates, inspect the fuses, connections and speaker
positive & negative contacts for damage. If the problem
persists, you may need to send it in for inspections and
repairs.
2. SYMPTOM: NO SOUND COMING FROM SPEAKER(S)
Possible cause:
• Power is turned OFF or no power current to the product
• Improper audio input connections
• Volume set to minimum
• Speaker connections not inserted correctly
Remedy:
A.
Be sure the power switch is set ON and/or power cable
is connected properly.
B.
Be sure the sources are connected to audio Inputs (Line
Out, Record Out, and Mix Out are audio outputs and do not
play any received audio)
C.
The default volume setting is minimum. After connecting
sources, adjust the volume control on top of the subwoofer to
a proper level.
D.
The column speakers connecting to the powered
subwoofer receive their power via the mounting location; this
connection has a locking mechanism that will engage audio
to the column speakers once properly locked. To properly
lock the column speakers; insert the column speaker onto the
mounting location at a counterclockwise angle and then turn
clockwise, an audible click confirms proper mounting.
3. SYMPTOM: ONLY LEFT SPEAKER PLAYS AUDIO (RIGHT
SPEAKER NO AUDIO)
Possible cause:
• Right speaker power is OFF
• Right speaker volume is set to minimum
• Audio source is set improperly
Remedy:
A.
Be sure the power switch is set ON
B.
The left and right speakers have independent volume
controls; depending on how you connect, the right speaker
needs to be leveled with the left speaker.
• If the left speaker acts as the master volume control in the
setup, adjust the right speaker to the same level as the left
speaker.
• If the setup includes a professional mixer, set both left
and right volume levels the same, then control the volume
through the mixer.
4. SYMPTOM: ONLY RIGHT SPEAKER PLAYS AUDIO (LEFT
SPEAKER NO AUDIO)
Possible cause:
• Left speaker power is OFF
• Left speaker volume is set to minimum
• Audio source is set improperly
Remedy:
A.
Be sure the power switch is set ON
B.
The left and right speakers have independent volume
controls; depending on how you connect, the left speaker
needs to be leveled with the right speaker.
• If the right speaker acts as the master volume control in the
setup, adjust the left speaker to the same level as the right
speaker.
• If the setup includes a professional mixer, set both left
and right volume levels the same, then control the volume
through the mixer.
Summary of Contents for M-12
Page 27: ...27 MAINTENANCE NOTE ...