AVM A 30.3 Manual de Instruções - Página 11

Procurar online ou descarregar pdf Manual de Instruções para Amplificador AVM A 30.3. AVM A 30.3 13 páginas. Integrated amplifier
Também para AVM A 30.3: Manual de Instruções (20 páginas)

Imprimir página
AVM A 30.3 Manual de Instruções

3 Appendix

3.1 Cleaning

Surface and pressure of the housing are largely scratch-resistant. It can be cleaned with mild
soapy water or a glass cleaner and a soft duster.
ATTENTION: Do not allow any liquid to enter the inside of the housing during cleaning. In
addition, for safety reasons, the power cord should be disconnected before damp wiping. Do
not use solvents or abrasive cleaners that could damage the surface or printing on the housing.

3.2 Troubleshooting

Often alleged defects can be traced back to operating errors. Before you contact us about a
defect, please check the functions of your mono blocks using the following checklist:
No music playback
•
First check if the preamplifier and the selected signal source work correctly. The easiest
way to do this is to check the function of the preamplifier e.g. with headphones. Please do
not forget to remove the headphone plug afterwards.
•
Make sure that there is no interruption (or short circuit) in the signal cable between mono
blocks and preamplifier.
•
Check the connection cables between the mono block sand the connected speaker for
short circuit or interruption.
After switching off the preamplifier, the mono blocks do not automatically go to
STANDBY (after about 5 to 10 minutes), although the operating mode has been selected
to AUTO.
•
Please check if after switching off the preamplifier there are soft humming or chirping noises
coming from the speakers. If this is the case, interferences in the cable interfere with the
automatic switch-on. This interprets the interference as a music signal and therefore does
not switch off the mono blocks. Lay the cable so that no interference is interfered with. With
balanced cables, an error in the pin assignment can also be the cause.
Hum during music playback
•
Possibly the cable is damaged: The shield of the audio cable has a break, or the RCA plug
does not have a good ground contact (bend carefully). Use a balanced cable with wrong
assignment (the assignment of the XLR socket is described in chapter 1).
11