96-8005353_02-17-2022
Information subject to change
27
8504 OPERATOR’S MANUAL – SECTION 6
G. Replace the output terminal covers on both
amplifiers and secure.
6.4.4 Multiamp System Start-up
Procedure
1.
Turn down the level of your signal source.
2.
Make sure the back panel breaker switch on
both amplifiers is in the ON position.
3.
Press the Standby-Run switch on both the
Master and the Follower amplifier to energize
the amplifiers. Energizing the Master amplifier
first is recommended, although not absolutely
required.
4.
Wait for the green RUN LEDs to illuminate on
both amplifiers.
5.
Adjust the input signal level to achieve the
desired output level.
6.4.5 Multiamp System Operation
In multiamp systems, the Master amplifier controls
several operating functions for both amplifiers in
the system, so the Follower amplifier is said to be
“interlocked” with the Master amplifier. The func
-
tions controlled by the Master amplifer include
input signal, operating status, mode of operation
(controlled-voltage or controlled-current operation)
and amplifier compensation.
Because the amplifiers in a multiamp system are
interlocked, the main and fault status indicators of
both amplifiers in the system must be considered
Figure 6.13 – 8504 Push/Pull system setup
PUSH/PULL
DB9 CABLE
8504 AMP #1 -
MASTER
and/or
Signal
Generator
SYSTEM REQUIREMENTS:
(2) 8504 amplifiers
(1) 8504 Multi-amp Kit (69-8005462)
8504 AMP #2 -
FOLLOWER
AMPLIFIER
OUTPUTS
NOTE: No ground
should be used on
either side of the
load with this
configuration.
OUTPUT
GND
AMPLIFIER
OUTPUTS
OUTPUT
GND
8504 PUSH/PULL SYSTEM
8504
AMPLIFIERS
KEY FOR DIP SWITCH
SETTINGS:
REQUIRED
DEFAULT
OPTIONAL
NOT RECOMMENDED
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