Battery Life; Troubleshooting - Shure ULX
Wireless Microphone System User Manual

BATTERY LIFE

Shure recommends using only 9V alkaline or lithium batteries with ULX1 and ULX2 transmitters. Typical life expectancies
for the most common types of 9V batteries are listed in the tables below. For detailed information on battery performance,
contact your dealer or the Shure Service Department at 1-800-516-2525 (7:30 am to 4:00 pm, Central Standard Time). In Eu-
rope, call 49-7131-72140; other international users call Shure in the U.S.A. at 847-866-2200.
NOTE: Batteries stored for more than a year or stored in excessively hot environments may experience a higher failure rate.
ULX Transmitters use a DC-to-DC converter, which require a minimum 6V to operate. It the battery does not provide this
threshold voltage, the transmitter will not operate.
NON-RECHARGEABLE
BATTERY TYPE
Lithium
Alkaline
Carbon-Zinc
RECHARGEABLE
BATTERY TYPE
Ni-Cd
Ni-MH

TROUBLESHOOTING

The following table lists some common problems and their solutions. If you are unable to solve a problem, contact your dealer or
the Shure Service Department at 1-800-516-2525 (7:30 am to 4:00 pm, Central Standard Time). In Europe, call
49-7131-72140; other international users call Shure in the U.S.A. at 847-866-2200.
PROBLEM
ULXS4 ULX4P
No so nd No sound.
No sound or faint No sound or faint
sound.
TYPICAL BATTERY LIFE WITH
ULX TRANSMITTERS
21 hours
8 hours
5 hours
TYPICAL BATTERY LIFE WITH
ULX TRANSMITTERS
2 hours
2.5 hours
INDICATOR STATUS
RECEIVER
TRANSMITTER
ULX1 ULX2
Slide transmitter POWER switch to ON.
Make sure battery is inserted properly (+/– battery terminals
must match transmitter terminals).
Insert fresh battery.
Make sure receiver AC adapter is securely plugged into
electrical outlet and into DC input connector on rear panel
of receiver.
Make sure AC electrical outlet works and supplies proper
voltage.
Make sure receiver is plugged in and the Power switch is in
the ON position
Make sure transmitter and receiver are set to the same
frequency
Extend receiver antennas so that they point away from each
other at a 45 angle from vertical.
Move receiver away from nearby metal objects.
Remove obstructions and maintain line of sight between
transmitter and receiver.
Move transmitter closer to receiver.
Increase transmitter gain until the Audio Peak icon on the
Transmitter flashes on loud peaks.
Turn up receiver volume control. Turn up receiver volume control
Check cable connection between receiver and amplifier or
mixer.
25
RECOMMENDED FOR USE WITH
ULX TRANSMITTERS?
Yes
Yes
No
RECOMMENDED FOR USE WITH
ULX TRANSMITTERS?
No
No
SOLUTIONS