Troubleshooting - Lectrosonics ucr201 Operating Instructions Manual

POWER SUPPLY AND FUSE
LCD Screen not active or lit.
• External power supply disconnected or
inadequate.
• Main power supply fuse tripped. Turn the
receiver off, remove the cause of the overload
and turn the receiver back on.
• Wrong polarity power source. The external DC
in requires POSITIVE to be on the center pin.
Battery may be low - check battery level - (press
MENU button 3 times )
PILOT TONE SQUELCH
The PILOT indicator on the front panel shows as a solid
"P" to indicate that the audio has been turned on at the
transmitter, and that the audio output on the receiver is
enabled. When the "P" is on, the audio is enabled. If the
"P" is flashing the pilot tone is not detected and the audio
will be muted (squelched).
When the pilot tone is disabled, the "P" changes to a "b".
PILOT indicator is on "P", but no sound
• Audio output cable bad or disconnected.
• Audio Output level set too low.
PILOT "P" keeps flashing when transmitter audio
switch is turned on
• It takes several seconds for the relay to actuate
the PILOT. Turn the transmitter power and audio
switches on and wait 3 to 5 seconds for the P to
come on.
• Transmitter and receiver not on same frequency.
Noise on audio and Pilot lamp is red.
• The pilot tone bypass has been pressed. Press
the SELECT UP and the MENU buttons to reset.
ANTENNAS AND RF SIGNAL STRENGTH
RF Level is weak.
Receiver may need to be moved or reoriented
Antenna on transmitter may be defective or
poorly connected - double check antenna on
transmitter.
• Improper length of antenna, or wrong antenna on
transmitter. UHF whip antennas are generally
about 3 to 5 inches long. UHF helical antennas
may be shorter, but are often less efficient.
No RF Signal
•
Make certain frequency switches on transmitter
match the receiver frequency setting.
•
Check battery in transmitter
12

TROUBLESHOOTING

AUDIO SIGNAL QUALITY
Poor signal to noise ratio
Distortion
• Transmitter gain set too low
• Noise may not be in wireless system. Mute the
audio signal at the transmitter and see if noise
remains. If the noise remains, then turn the
power off at the transmitter and see if it remains.
If the noise is still present, then the problem is
not in the transmitter.
• If noise is still present when the transmitter is
turned off, try lowering the audio output level on
the UCR201 and see if the noise lowers
correspondingly. If the noise remains, the
problem is not in the receiver.
• Receiver output is too low for the input of the
device it is feeding. Try increasing the output
level of the UCR201 and lowering the input gain
on the device the UCR201 is feeding.
• Transmitter input gain too high. Check and/or
readjust input gain on transmitter according to the
LEDs on the transmitter and then verify the
setting with the transmitter Mod level LED pair on
the UCR201D front panel.
• Audio output level too high for the device the
UCR201 is feeding. Lower the output level of the
UCR201.