SHC8525
8ENGLISH
13 To tune the headphone to the correct transmission frequency, choose 1 of the 3 provided frequency options
(the selected transmission frequency of the transmitter). The headphone will quickly tune to the transmitter.
14 In case interference from neighbouring transmitters has occured, adjust 
the transmission channel of the transmitter, then repeat step 13 to tune 
the headphone to the transmitter.
15 Adjust the volume of the headphone to the desired listening level.
IMPORTANT!
• Avoid adjusting the listening volume level at the audio source as this may compromise the audio quality on too low input levels.
Problem solving
If a fault occurs, first check the points listed below. If you are unable to remedy a problem by following these hints, contact the helpline
(see ‘Need help?’) or consult your dealer.
Never try to open the set yourself as this will void the guarantee.
First, check all cables to ensure that they are connected correctly.
Problem | Possible Cause | Solution |
Headphone fails | No battery installed | Follow step 1 to 4 of |
to charge |
| ‘Installing/replacing the batteries’ |
| Wrong battery orientation | Reposition the batteries according to |
|
| the engraved polarity symbol. |
| No power supply | Make sure the docking station is |
|
| connected to the local mains power |
|
| supply through an adapter and follow |
|
| steps 5 to 7. |
| Charging pin of the docking station | Lock the headphone in place, and |
| not in contact with the metal | make sure the CHARGE |
| plate of the headphone | INDICATOR light is on. |
| Wrong headphone orientation | Reposition the headphone with |
| when placed onto the charging | correct orientation. |
| dock |
|
No sound/ | Headphone power off | Push the POWER ON/OFF |
distorted sound |
| BUTTON. The POWER ON/OFF |
|
| INDICATOR light turns on automatically |
|
| indicating the headphone is on. |
| No battery installed | Follow step 1 to 4 of |
|
| ‘Installing/replacing the batteries’ |
