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NOTE: Batteries stored for more than a year or stored in excessively hot environments may experience a higher
failure rate.
NOTE: When using rechargeable batteries, do not use any battery with a fully-charged rating of greater than 9v, for
example, 9.6V
ULX Transmitters use a DC-to-DC converter, which require a minimum 6 V to operate. It the battery does not provide this
threshold voltage, the transmitter will not operate.
NON-CHARGEABLE
BATTERY TYPE
TYPICAL BATTERY LIFE WITH ULX
TRANSMITTERS
RECOMMENDED FOR USE WITH
ULX TRANSMITTERS?
Lithium 21 hours Yes
Alkaline 8 hours Yes
Carbon-Zinc 5 hours No
RE-CHARGEABLE
BATTERY TYPE
T
YPICAL BATTERY LIFE WITH ULX
TRANSMITTERS
RECOMMENDED FOR USE WITH
ULX TRANSMITTERS?
Ni-Cd 2 hours No
Ni-MH 2.5 hours No
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 847-600-2000.
PROBLEM
INDICATOR STATUS
SOLUTIONS
RECEIVER
ULXS4 ULX4P
TRANSMITTER
ULX1 ULX2
No sound
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 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.
•
•
•
•
•
•
No sound or faint
Increase transmitter gain until the Audio Peak icon
on the Transmitter ashes on loud peaks.
Turn up receiver volume control
Check cable connection between receiver and
amplier or mixer.
•
•
•