Troubleshooting - Shure ULX User Manual

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
Lithium
Alkaline
Carbon-Zinc
RE-CHARGEABLE
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 847-600-2000.
PROBLEM
ULXS4
No sound
No sound or faint
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
ULX4P ULX1
RECOMMENDED FOR USE WITH
RECOMMENDED FOR USE WITH
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 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
• Check cable connection between receiver and
amplifier or mixer.
25
ULX TRANSMITTERS?
Yes
Yes
No
ULX TRANSMITTERS?
No
No
SOLUTIONS