
15
troubleshooting
No Sound
• verify the mute switch on the top of the unit
is in the off (up) position.
• verify the transmitter is operating on the
same FM channel as the receiver
• verify the transmitter power is
on
• verify the microphone cord is inserted
properly into the
mic
jack
• if using the
aux
jack on the transmitter for
external sound, verify the AT0529A antenna
is plugged into the
mic
jack. If using a
microphone cord as an antenna, make sure it
is not coiled.
• verify an approved PE microphone is being
used (AT0655, AT0814, AT0816, AT0291-L
or AT0668-L)
Batteries NOT charging
• verify only Phonic Ear NiMH batteries are
being charged. 330T unit will not charge dis-
posable alkaline or other rechargeable batteries.
• check battery polarity markings to verify
batteries are oriented properly
• verify the power switch is in the
off(chg)
position
• verify the charging cord is plugged in to the
chg
port and NOT the
aux
port
• verify the wall transformer is plugged into an
operational electrical outlet
4075 330T Trans User Guide 8/17/04 3:53 PM Page 21
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