Contacta STS-K035-B Manuel d'installation et d'utilisation - Page 12

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Symptom

There is no

power

detected

through the

amplifier (and

there is power at

the socket).

The red LED is

illuminated on

front panel.

I can't hear

audio through

the induction

loop.

I can hear

interference

through

speakers

(buzzing /

whistling /

hissing).

Amplifier goes

into feedback.

Unit does not

go into power

saving mode.

If no action is successful please seek assistance from

Troubleshooting

Possible Fault

1) Power jack not plugged in or

faulty.

2) Plug fuse has blown.

3) Faulty power supply unit.

4) Faulty amplifier.

1) Constant red LED:

Staff or customer/visitor microphone

fault.

2) Red LED comes on after speech:

Induction loop fault.

1) Induction loop or microphone is

disconnected.

2) Loop tester has a fault.

1) Unscreened or poorly earthed

third party equipment is being used

in close proximity.

2) Internal volume gain set to high.

3) Incorrect power supply being

used.

1) Internal volume gain set to high.

2) Microphone positioned too close

to speaker.

1) Ambient noise in area is too high.

your distributor or a Contacta installer.

Action

1) Check power jack is firmly plugged

in.

2) Replace fuse. If it blows again,

replace the power supply unit.

3) Replace the power supply unit.

4) Replace amplifier.

1) Ensure microphone is wired

correctly and firmly plugged in. Try

alternative microphone to ensure

port is working.

2) Ensure induction loop connector is

wired correctly and firmly plugged in.

1 ) Check instructions for correct

connections and, if possible, check

the hearing device with a known

working hearing loop.

2) Ensure loop tester has a new set

of batteries.

1) Switch off any third party

equipment to identify the source of

interference.

2) Access the amplifier engineers

mode to adjust the internal settings.

3) Ensure that our grounded power

supply unit is connected.

1) Access the amplifier engineers

mode to adjust the internal settings.

2) Move the microphone to a

location further from the speaker.

1) Switch off any air con systems,

desktop fans and/or computers to

reduce ambient noise.