Lectrosonics IFBT5 - Manual (Page 9)

IFB Transmitter
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE
DISPLAY NOT LIT OR
BLINKING ON AND OFF • External power supply disconnected or inadequate.
• The External DC power input is protected by an auto-reset
polyfuse. Disconnect power and wait about 10 seconds for the
fuse to reset.
NO TRANSMITTER MODULATION LEDs • AUDIO LEVEL turned all the way down.
• Mic capsule is damaged or malfunctioning.
• Mic cable damaged or mis-wired.
NO RECEIVED SIGNAL • Transmitter not turned on.
• Receiver antenna missing or improperly positioned. (The headset
cable is the antenna.).
• Transmitter and receiver not on same frequency. Check
on transmitter and receiver.
• Operating range is too great.
• Transmitter antenna not connected.
• Transmitter switch in the TUNE position. Switch to XMIT mode.
NO SOUND (OR LOW SOUND LEVEL),
RECEIVER LED IS ON • Receiver output level set too low.
• Receiver earphone cable is defective or mis-wired.
• Sound system or transmitter input is turned down.
DISTORTED SOUND
lamps • Transmitter gain (audio level) is far too high. Check mod level
on transmitter as it is being used. (Refer to Operating
Instructions section for details on gain adjustment.)
• Receiver output may be mismatched with the headset or
earphone. Adjust output level on receiver to the correct level
for the headset or earphone.
• Excessive wind noise or breath “pops.” Reposition microphone
and/or use a larger windscreen.
• Transmitter is not set to same frequency as receiver. Check that
frequency on receiver and transmitter match.
HISS AND NOISE,
AUDIBLE DROPOUTS • Transmitter gain (audio level) far too low.
• Receiver antenna missing or obstructed. (The headset cable is the
antenna.)
• Transmitter antenna missing or mismatched. Check that the correct
antenna is being used
• Operating range too great.
• Defective antenna or cable.
Rio Rancho, NM – USA 9