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ENGLISH
FRANÇAISDEUTSCHNEDERLANDSESPAÑOL
ITALIANO
PORTUGUÊS
SVENSKA
17
Troubleshooting
PROBLEM CAUSE SOLUTION
No sound
Power AC-mains cable unplugged
VACATION switch set to VACATION
The Protection mode is engaged
External fuse blown
Check if AC-mains cable is plugged in and
power switched on
Set the VACATION switch to ON
•Switch amplifier off via VACATION switch. Make
sure ventilation slots on top, side, and back of the
amplifier are not blocked. After amplifier has
cooled down, switch the amplifier on
Replace fuse
Consult dealer/installer
No sound in one channel
Speaker not properly connected or damaged
Input cable pulled loose or making poor contact
at Flex-Pad socket
Short-circuit or broken wire in a defective patch
or speaker cable
Check all connections both at the speakers and
at the amplifier
•Check leads and Flex-Pad cables
Switch the amplifier to VACATION mode, check
and replace cables if necessary
Weak bass/ poor stereo image
Speakers wired out-of-phase Reverse connections at the back of the suspect
amplifier output
Check connections to all speakers in the affected
zone/room
Low or distorted sound in one zone/room
and OMC LED on
Shorted speaker cable to zone/room
•Too high of an input level to one or more
amplifier channels
•Too low an impedance on one or more amplifier
zones/rooms
Switch off amplifier via VACATION switch and
remove one at a time a pair of speaker cables
from the amplifier, then switch the VACATION
switch to the ON position and restore audio
source. Continue this procedure until the OMC
LED does not turn on. Replace the shorted
speaker cable to the zone/room
•Turn down the input level to the room/zone that
may be suspect
•Too many speakers connected to one channel, or
incorrect speaker pad or matching transformer
impedance settings. Remove some speakers or
check speaker pad and/or documentation
supplied from the speaker pad manufacturer for
correct impedance settings
Damage to speaker pad. Replace speaker pad
CI9120_9060 manual (GB) 12/12/02 9:09 pm Page 17
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17


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