Maintenance And Cleaning; A) Cleaning - Renkforce 1377550 Bedienungsanleitung

The LED POWER indicator (14) is switched on but there is no sound.
• Is the volume control on the mixer set to zero?
• Is the mixer connected to the input properly?
• Is the mixer's mute switch turned on?
• Is the MASTER (12) volume control set to zero?
There is a buzzing sound coming from the speaker:
• Are the signal cables from the mixer to the product connected properly?
• Are the signal cables from the audio source to the mixer connected properly?
Other faults/necessary repairs should only be checked/carried out by an authorised
technician.

15. Maintenance and cleaning

Regularly check the technical safety of the product, e.g. for damage to the mains cable or the casing.
Always observe the following safety instructions before cleaning or servicing the product:
Live components may be exposed if covers are opened or components are removed.
The device must be disconnected from all power sources before any servicing or repair work
is carried out.
Capacitors inside the device may still carry voltage even though they have been disconnected
from all power sources.
Only qualified technicians familiar with the potential hazards and the relevant regulations may
perform repairs.

a) Cleaning

Never use aggressive and abrasive detergents, rubbing alcohol or other chemical solutions,
as these could damage the casing or even impair the functioning of the product.
• Disconnect the product from the power supply before cleaning.
• Do not immerse the product in water.
• The product should only be cleaned with a soft, dry cloth or brush.
• Leave maintenance or repair work to an expert.
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