AmpliVox SW915 - Manual (Page 11)

11
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 BATTERY
·
Check battery terminals
·
Check 25A Circuit Breaker. Reset if needed.
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SOUND IS DISTORTED
·
If overload LED is lit, turn down volume
·
Turn down input source (such as keyboards, etc.) since the
output of some devices may be too high
·
Check for debris on speaker cone
SOUND IS MUFFLED
·
Bass too high
·
Treble too low
FEEDBACK: ALOUD SQUEALING, SHRILL OR HOWLING
SOUND THAT IS SELF GENERATED
·
Feedback occurs when a microphone is too close to the
speaker or the microphone volume is too high, or the
microphone is pointed towards the speaker. It is also caused
by sound reflecting off hard surfaces.
·
Reduce or eliminate Feedback by
- Pointing the microphone in a different direction
- Keeping the microphone BEHIND the speakers
- Turn down the volume levels
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.
MICROPHONE SIGNAL IS WEAK
·
If microphone has batteries, check batteries
·
Turn on phantom power if applicable
·
Check cables/connectors
WIRELESS MIC DOES NOT WORK
·
Check transmitter battery is alkaline and ensure transmitter is
on.
·
Does yellow “signal” LED light when transmitter is turned on?
·
Are the transmitter and receiver on the same channel? (1-16)
WIRELESS MIC CUTS IN AND OUT
·
Is unit visible (line of sight) from user? If not, move unit into
view when using wireless microphone.
·
Does the yellow “signal” LED go out when signal drops out?
Check battery in transmitter.
SW915 MAKES BUZZING NOISE
·
Check cables – a damaged cable will cause this. Unplug
cables one at a time until buzzing stops.
·
Check for Ground loops – use a ground loop isolator where
needed. will not operate unless plugged into AC)
BATTERIES WILL NOT HOLD CHARGE
·
Replace Batteries every 1-2 years if unit is not left
charging when not in use.
·
A full charge is best obtained when the unit is off and
plugged into the AC outlet for several hours. After a
year or two the battery may need to be replaced. Batter-
ies are available from Amplivox.
· To replace the batteries use a Phillips screwdriver
and take out the 4 screws from the battery cover on
the control panel. Remove the foam spacer, set
aside. Pull out the batteries to access the terminals.
· Carefully hold the battery with one hand while you
remove the mating connector. Replace with new bat-
tery and push mating connector of battery wire onto
the corresponding color/polarity. RED = POSITIVE,
BLACK = NEGATIVE.
· Place the batteries back in the compartment. Re-
place the foam and screw in the cover.
CD DOES NOT PLAY
· Is unit turned on?
· Be sure CD or CD-R is loaded into tray correctly.
UNIT WILL NOT PLAY CD-R/W MEDIA.
· Inspect disc for deep scratches or cracks
· Check if player is in “pause” mode
CD SKIPS
· Be sure unit is steady. If it is jarred, this may occur.
· Check for scratches on disc surface
CASSETTE TAPE DOES NOT PLAY
· Is unit turned on?
· Be sure Cassette is loaded in player
· Check if player is in “pause” mode
· Remove Cassette from player and check for entan-
glement
TAPE BECOMES ENTANGLED IN CASSETTE
PLAYER
• Carefully remove tape from player. - Clean heads and
pinch roller with rubbing alcohol and a swab or a
commercially available cassette player cleaner.
NEED HELP? Call 800-267-5486
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