Shure ULX manual Troubleshooting, No sound

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	Typical Battery Life with ULX	RECOMMENDED FOR USE WITH
BATTERY TYPE	Transmitters	ULX TRANSMITTERS?
Lithium	21 hours	Yes
Alkaline	8 hours	Yes
Carbon-Zinc	5 hours	No
RE-CHARGEABLE	Typical Battery Life with ULX	RECOMMENDED FOR USE WITH
BATTERY TYPE	Transmitters	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.

	INDICATOR STATUS
PROBLEM	RECEIVER	TRANSMITTER		SOLUTIONS
	ULXS4 ULX4P	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
No sound				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.
No sound or faint	•	Turn up receiver volume control
	•	Check cable connection between receiver and
		amplifier or mixer.

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