5.1 Canton Movie 165 - Инструкция по эксплуатации - Страница 27

27

Problem

Possible cause

Solution

Subwoofer 
does not turn 
on

1. The power cable is not connected from the socket to the 
subwoofer

Check connection

2. The power has not been turned on

Switch to “ON”

3. The switch for automatic switching on is not in the “ON” 
position or the “AUTO” or “AUTO HIGH” positions

Check switch setting

4. The subwoofer is not connected with the amplifier (re-
ceiver) through its speaker outlet (High level) or subwoofer 
outlet (cinch) cable

Check connection

5. Defective signal line (cinch)

Test with another cinch cable and change cable if necessary

6. The volume of the amplifier has been set too low

increase volume level to test

7. With a “Dolby Digital” receiver (amplifier): the receiver is 
not set for subwoofer operation (operating method “Small” 
or “ActiveSub = On”) 

Check operating mode

8. The outlet level on the amplifier is set too low for the 
subwoofer outlet (cinch outlet)

increase the outlet level of the amplifier

9. The microfuse in the subwoofer has blown (fused)

get a specialist to change the microfuse

Subwoofer 
does not 
switch off

1. Switch for automatic switching on (Standby) set to “ON”

Switch to “Auto” or “OFF” 

2. Constant humming at inlet of subwoofer

use a shorter signal line from the amplifier to the subwoofer or remove any possible sources of 
interference (see “Subwoofer hums”)

Subwoofer 
hums

1. Signal line from amplifier to subwoofer too long

use shorter signal line

2. Signal line used is not fault-protected or the protection 
has been damaged (defective)

Change signal line for a fault-protected line

3. ground loop (ripple pickup) generated

A ground loop can be generated when two or more devices connected via a signal line (cinch) 
are plugged into separate sockets (e. g. amplifier and computer). All devices connected to the 
amplifier should be plugged into the same multiple socket outlet

4. Another piece of equipment on the same circuit has no 
interference suppression (e. g. fridge)

Switch off possible sources of interference to test; unplug the device concerned to see if the 
humming noise disappears or connect the source of interference to a different circuit (l1, l2   
or L3). (Where necessary take advice from your electrician.) Insert a special “ferrite common 
mode filter” (available from specialist retailers) between the amplifier and the subwoofer to 
eliminate the humming. Disconnect and rotate the mains plug to reduce the so-called ripple 
voltage. (Particularly important if the amplifier is not earthed)

ENG