7000-SERIES MULTI-AMP CONFIGURATION GUIDE
97-8002465_06-09-14
Information subject to change
9
Figure 3.6 – 7548/7796 Output Terminal Resistor
3.4.1
Accessing the Main Board on 7224 Amplifiers
7224 amplifiers contain an Access Panel built into the top cover
to allow easy access to the amplifier main board for
configuration of the Master/Slave setting.
IMPORTANT: Before removing the Access Panel, make sure
the amplifier is turned off for at least 3-5 minutes and the AC
mains are disconnected.
On each Slave amplifier, locate the Access Panel as shown
1.
in
Figure 3.3.
Make sure that all 8 screws are accessible.
Remove the unit from its rack, if necessary.
Using a #2 Phillips screwdriver, remove the 8 screws located
2.
on the top and side of the amplifier.
Remove the Access Panel and set it aside.
3.
3.4.2
Accessing the Main Board on 7548/7796 Amplifiers
The 7548 or 7796 amplifier Main Board can be accessed by
removing the amplifier front panel.
IMPORTANT: Before removing the Front Panel, make sure the
amplifier is turned off for at least 3-5 minutes and the AC mains
are disconnected.
Turn the power to the amplifier “OFF”.
1.
Remove the four hex-head screws, located along the left and
2.
right edges of the amplifier front panel.
Remove the front cover by pulling straight towards you.
3.
3.4.3
Set Master/Slave Jumpers
On the main board, locate the jumpers P1 and P2
1.
(Master/Slave). For Slave operation, set both jumpers to the
DOWN position (lower two pins shorted). See
Figure 3.4
for
jumper locations.
3.5
Remove Output Terminal Resistor
For all
Series – Single Ended Output
configurations, it is
important to remove the output terminal resistor from all Slave
amplifiers in the system.
On each Slave amplifier back panel, locate and remove the
1.
resistor connecting the terminals labeled COM (7224
amplifier) or SAMPLED COMMON (7548/7796 amplifiers) and
CHASSIS GROUND on the output connector. See
Figures 3.5
and 3.6.
Retain the resistor for later use.
2.
3.6
Attach Master/Slave Labels (optional)
We recommended labeling each amplifier front panel as “Master” or “Slave to identify the configuration of
the amplifier.
Figure 3.3 – 7224 Amplifier Access Panel
Screw Locations
Figure 3.4 – Master/Slave Jumper Locations
Figure 3.5 – 7224 Output Terminal Resistor
