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Problem

Possible cause

Solution

No sound;
No lights 

No sound;
Lights on

Distorted sound; 
feedback

Outside noise 

l

Radio frequency got occupied 
by other radio device.

l

Change the channel on receiver 
and IR syncing between receiver 
and microphone. See P.6~7 also                     

Troubleshooting

If you are having problems operating the UHF-1208XR, or suspect something is wrong 
with the unit, please check the troubleshoot list below to see if the issue is a result of 
incorrect operation rather than equipment malfunction. If you are still unable to resolve the 
problem, please contact our Acesonic service center at 626-820-0670.

Reciver

Microphone

* For quick microphone channel matching process, please see the note on the top of 
receiver, or see page 7 for more  detail

8

l

Power button is on the OFF 
position

l

AC power adater is not plug in

l

Poor connection of AC power 
adapter

l

How to switch from different 
channels?

l

Turn on the power button                  

l

Plug in the AC power adapter

l

Check to see if the AC power 
adapter is loose. Check on the 
receiver end and wall outlet end

l

See page 6 and 7 for more detail

l

The transmitter is out of range

l

Microphone switch is off or 
mute

l

Microphone volume is turn 
down

l

Batteries in the microphone 
are not install properly

l

The antenna is not fully 
functional.

l

Receiver is not connect to an 
amplifier, mixer or karaoke 
player

l

Operate the machine in the 
effective range 

l

Turn on the microphone switch 
(indicated green light)

l

Turn on the microphone volume on 
the receiver

l

Reinstall the batteries. Make sure 
the positive and negative end are 
install correctly

l

Try to change the angel of the  
antenna

l

Connect the ¼ to ¼ or XLR cable 
from the receiver to a microphone 
input (mixer, player, etc.). See 
Page 7 for detail

l

The two microphones are too 
close together

l

Batteries running low in 
microphone

l

Microphone volume is too high

l

Distortion from other electric 
wave

l

Separate the microphone further 
away

l

Recharge the batteries

l

Reduce the volume of the 
microphone

l

Move the reliever away from 
electric equipment or change the 
frequency channel

1Batteries still 

running low even 
after recharging it

l

Batteries are bad

l

Replace the batteries.(You can 
use Normal AA batteries as well. 
They just can’t be recharge)                      

Summary of Contents for UHF-1208XR

Page 1: ...ely and to its fullest potential please read this user s manual carefully before operation and keep for future reference www acesonic com The Leader in Professional Equipment UHF 1208XR DUAL DIVERSITY...

Page 2: ...maintenance servicing instructions in the literature accompanying the appliance 1 This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 o...

Page 3: ...manufacturer 23 Wet location marking Apparatus shall not be exposed to dripping or splashing and no objects filled with liquids such as vases shall be placed on the apparatus 1 Read These Instruction...

Page 4: ...08X receiver 1 l Rechargeable Battery 4 Be sure to keep original packaging in case of re shipping is needed l l Antenna 2 l User manual warranty card 1 l Microphone Battery Recharging Dock 1 3 ft male...

Page 5: ...eiver channel 2 Scan use to start auto channel scanning process usually will need about 90 seconds to complete the process after scanning receiver will pick the best channel 3 IR to start IR sync chan...

Page 6: ...ing unit inside which receive the IR signal from receives to complete the IR matching for microphone and receiver 4 Switch button Microphone Operation Channel switching 1 Install batteries into microp...

Page 7: ...cess The whole auto scanning process will be finished around 90 seconds However you can stop auto scanning anytime by pressing STOP button Receiver will select the best cleanest channel from the chann...

Page 8: ...ceiver end and wall outlet end l See page 6 and 7 for more detail l The transmitter is out of range l Microphone switch is off or mute l Microphone volume is turn down l Batteries in the microphone ar...

Page 9: ...ions Receiver Carrier Wave Frequency Range UHF 668 692 MHz Oscillation Mode Phase locked Loop controlled Carrier Wave Stability 10PPM Switching bandwidth 24MHz Frequency Space 250KHz Sensitivity 105dB...

Page 10: ...Information Contact Info 1 Year Manufacturer Warranty Lifetime Tech Support Design in U S A Tech Support Address 161 S 8th Avenue City of Industry CA 91746 3208 USA Website www acesonic com 626 820 0...

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