Enping Ding Li Acoustics Technological Co. Ltd. UH3 Manuale Utente

1. Open the hinged BATTERY DOOR (23) and insert 2 fresh AAA ALKALINE
BATTERIES into the BATTERY COMPARTMENT (24), observing the correct polarity.
Fresh alkaline batteries can last up to 5 hours in use, but in order to ensure optimum
performance, it is recommended that the batteries be replaced after 3-4 hours of use.

2. The UB-3 is equipped with an INPUT SELECTOR SWITCH (32) located under the
cover for selecting the type of audio input you will be supplying to the transmitter.
Select from the choice of three positions: INSTRUMENT (for guitar, bass, etc.)/
HEADWORN MIC/ LAVALIER MIC.

3. The UB-3 is provided with a 3.5 mm LOCKING JACK (26) for connecting the audio
input selected. Connect either the INSTRUMENT CORD (34) or the HEADWORN MIC
(35)

or LAVALIER MIC CORD (36) as desired, according to the input selected. (Note:

Use only the input audio source as per the input selected with the AUDIO INPUT
SELECTOR SWITCH

or the audio will not be optimal–a muddy or distorted sound may

result.) To secure the connection, turn the slip ring on the plug clock wise to thread
it on the jack. To unplug, reverse the process. Slip the transmitter into a pocket or CLIP
(33)

it on to your clothes or instrument strap (if using the UB-10 as an instrument

transmitter).

4. Turn on the UB-3 by sliding the audio MUTE SWITCH (27) to the ON position first.
Then slide the POWER SWITCH (29) to the ON position. The battery indicator LED
(28)

will give a single quick flash, indicating usable battery strength. In the case of

dead or low batteries, the LED will either not go on at all or will stay on continuously,
indicating that the batteries should be replaced with fresh ones. To preserve battery
life, turn the transmitter off when not in use. The A AND/OR B DIVERSITY LED
INDICATORS (13)

on the UHF-3 receiver should now be lit, indicating a received

signal from the transmitter.

5. Instrument Use
Secure the connection from the GT CABLE (34) by turning the slip ring on the plug
into the transmitter clockwise to thread it on the jack. To unplug, reverse the process.
Plug the 1/4” phone plug into the instrument. When ready to play, slide the audio
MUTE SWITCH (27)

to OFF position Adjust the volume of the receiver as per the

Audio Output Instrument Connection section of the above UHF-3 receiver instruction.

(Note: The INPUT LEVEL CONTROL (25) is deactivated and not used when the UB-3 is
in INSTRUMENT mode. Levels should be adjusted with the volume control of your
instrument.)

The UHF-3 receiver is equipped with a 5 segment LED AF LEVEL DISPLAY (14).
Occasional flickering of the top AF Peak LED indicator on loud inputs to the
transmitter is normal. If this LED lights continuously, turn down the INPUT LEVEL
CONTROL (25)

on the UB-3 transmitter, or noticeable distortion may result.

UB-3 BODYPACK MICROPHONE TRANSMITTER

5. Connecting the Audio Output
The UHF-3 receiver provides both a fixed mic level BALANCED MIC AUDIO OUTPUT
XLR (7)

and an adjustable line level AUX AUDIO OUTPUT 1/4" jack (10).

(Note: As when making any connection, make sure the amplifier or mixing board
volume is at the minimum level before plugging in the receiver to avoid possible
sound system damage.)

Microphone Connection
(using the UB-3 transmitter with either a headworn or lavalier microphone or the
UH-3 handheld microphone transmitter) For microphone use, either the BALANCED
MIC AUDIO OUTPUT XLR (7)

or the 1/4" line level AUX AUDIO OUTPUT (10) can be

used. The XLR output is set at a non-adjustable microphone level, similar to hardwired
mic levels. Plug an XLR connector into the XLR output socket on the rear of the unit
and plug the other end into your amplifier or mixing board. Make sure the phantom
power on your mixing board is turned off and the volume is turned down when
making connections. For your convenience, the XLR output level is preset at the
factory and is not adjustable with the receiver volume control.

To use the 1/4" AUX AUDIO OUTPUT socket, follow the instructions for the Instrument
Connection (above), except start the receiver volume at 1/2 MAX and adjust until the
volume level is optimal. If the volume control is set too high, you may overload your
mixer or amp.