JBL AVA7 - Manual (Page 5)

1. Power Switch
Pushing this button is all that is required
to turn on the AVA7 if it is not part of a
JBL Performance Series system and
the Main Switch § is in the On posi-
tion. If the amplifier is used as part of a
JBL Performance Series system, the
Main Switch § and the front-panel
push button Power Switch ¡ should
both be left in the On position. The
amplifier will then turn on when the
surround processor is activated. See
the descriptions of the Main Switch §
and Trigger Jacks ¶ for more informa-
tion on turning on the AVA7.
2. Standby Indicator
This indicator on the front-panel Power
Switch ¡ will glow red when the
amplifier is in the “standby” mode,
whether operating as part of a JBL
Performance Series system or not.
When the AVA7 is in the “on” mode,
this light will turn blue.
3. Input Jacks (Ch. 1 Through Ch. 7)
Seven of the output signals from the
JBL Performance Series AV1 digital
processor are connected to the seven
input jacks. We suggest the channels
be assigned as follows:
Ch. 1 Right Rear
Ch. 2 Right Side
Ch. 3 Right Front
Ch. 4 Center
Ch. 5 Left Front
Ch. 6 Left Side
Ch. 7 Left Rear
4. Speaker Terminals
Connect the speakers to these termi-
nals, following the normal convention;
wire the “+” side of the speaker to the
red terminal, and the “–” side to the
black terminal. Wire the speakers
with the proper polarity; reversing any
speaker’s connections will not damage
either the speaker or the amplifier, but
will result in poor low-frequency per-
formance and imprecise imaging.
WARNING: Terminals marked with the
flash symbol are hazardous when live.
External wiring connected to those ter-
minals requires installation by trained
personnel, and the use of ready-made
lead cords.
NOTE: The minimum load impedance
that this amplifier can handle safely is 8
ohms per channel. Using lower imped-
ance loads can damage the unit and
will void your warranty!
Wire Run Length Minimum Gauge
Up to 20' (6m)
16
Up to 50' (15m) 14
Up to 100' (30m) 12
5. External Fuses
The AC mains fuse is located on the
back panel of the amplifier. This fuse
will not blow unless the amplifier is
asked to produce more power than its
design allows for a prolonged period or
to prevent excessive current draw that
could damage internal components
during a fault condition. The amplifier
has been designed to operate under
virtually all conditions. Even momentary
short-circuiting of the output (speaker)
connections will not ordinarily damage
the output circuitry (although this will
activate internal protection circuitry
and could cause one or more of the
channels to temporarily mute until the
circuit automatically resets).
Fuse Replacement
To remove the fuse, turn off the power
switch and disconnect the power plug
from the AC mains. Remove the fuse
holder by lifting up the latch at the
bottom and pulling the holder out.
When looking at the fuse holder as
installed on the back panel, the fuse on
the right hand side is the active fuse.
The fuse on the left is a spare. Remove
the fuse on the right side and visually
inspect it to see whether it has opened;
if it has, discard it and replace it with
the spare glass fuse. Reinstall the
holder, and reconnect the AC mains.
If after replacing the fuse the unit is
inoperative, service is required; contact
your JBL dealer.
WARNING: Always unplug the
amplifier from the AC mains
before removing any fuse.
IMPORTANT:
Never install a fuse that has a
higher rating than the one specified on
the back panel of the amplifier or in the
owner’s manual.
6. Main Switch
Place this switch in the On position at
all times during normal use.
7. Trigger Input and Output Jacks
When using the AVA7 amplifier in a JBL
Performance Series system with the
AV1 Digital Surround Processor, you
will need to use the trigger cable set
included with the AV1. Connect the DIN
end of the cable to the Trigger Output
DIN jack on the rear panel of the AV1,
and connect the 1/8" (3.5mm) plug to
the Trigger Input Jack ¶ on the rear
panel of the AVA7.
5
¡
™
OPERATION AND CONTROLS
AVA 7 OM (New) 6/20/05 3:50 PM Page 5