New
TROUBLESHOOTING
Problem: Amplifier does not turn on.Problem: Insufficient sound output level
Neither the red nor blue indicator lightsfrom the speakers.
are on.Check that the output levels of the sur-
Make sure that the amplifier is pluggedround processor or equalizer are set
in, and verify that there is the properproperly.
voltage at the wall outlet. Make sureProblem: Insufficient bass.
the Main Switch ¤ on the rear panel
is in the On position.Verify that the speakers have been
Problem: The Standby Indicator awired to the amplifier with the correct
lights red, but it does not change to polarity.
blue when the Power Switch � isProblem: Audible hum from the speakers.
depressed.1. Check the power outlets and make
sure that there is a solid earth
If the amplifier is being used in a JBLground present. (The services of an
Performance Series system, make sure
that the surround processor is turnedelectrician may be required.)
on, the Main Switch ¤ is in the On2. Make sure that all signal cables are
position, and there is a connectionrouted away from power cords.
between the AVA7Os Trigger Input ?3. If these suggestions fail, experiment
and another device providing a power-by running ground wires between
on voltage trigger. Refer to the OCON-the rear-panel screws of the ampli-
NECTING YOUR SYSTEM� section forfiers and the other system compo-
reference. If the amplifier is not beingnents, such as the surround proces-
used with a JBL Performance Seriessor or signal processing package.
AV1 or any other source providing a
power-on trigger voltage signal, makeIf you still encounter difficulty after
sure that no connection is made to thetrying the above suggestions, call
Trigger Input ? of the AVA7.your JBL Authorized Dealer or JBL at
Problem: There is no sound from 1.516.255.4JBL for further assistance.
the speakers, but the amplifier is on
(Standby Indicator a is lit in blue).
1. Make sure that the surround proces-
sor or equalizer is on, and that the
correct source has been connected
and selected.
2. Make sure that the correct outputs
are connected from the surround
processor or equalizer to the
amplifier.
3. Make sure that the speakers are
connected to the correct terminals.
Check for short circuits at both ends
of the speaker cables.
Problem: Not all of the amplifiers turn on
in the system.
1. Make sure that all required cables
are connected between system
components. Refer to the OCON-
NECTING YOUR SYSTEM� section.
2. Make sure that each amplifier
has its Main Switch ¤ in the
On position.
3. Make sure the Power Switch � on
each amplifier is in the On position
(so that its Standby Indicator a is lit
in blue when the cable is removed
from its Trigger Input Jack ?).
10 |
ACEC
HARMAN KARDON
