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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-1208X, 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

Summary of Contents for UHF-1208X

Page 1: ...ork safely 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 1208X DUAL DIV...

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: ...ower adapter 1 l UHF 1208X receiver 1 Be sure to keep original packaging in case of re shipping is needed l l Antenna 2 l User manual warranty card 3 ft male to male cable 1 1 Check to see whatever th...

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: ...de which receive the IR signal from receives to complete the IR matching for microphone and receiver 4 Switch button Indicate Light Green Working Yellow Mute No light power off Microphone Operation Ch...

Page 7: ...ry correspond the negative and positive end of the microphone Screw the microphone handle back on clockwise HF 1208X AC Power adapter cable to cable Mic Input Mic Input Mic Input Power Outlet Installa...

Page 8: ...he 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 swit...

Page 9: ...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 sinad 12 dB S N Ratio...

Page 10: ...ation Contact Info 1 Year Manufacturer Warranty Lifetime Tech Support 626 820 0670 Design in U S A Tech Support Address 161 S 8th Avenue City of Industry CA 91746 3208 USA Website www acekaraoke com 6...

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