Troubleshooting; Testing Source Signal (All Configurations); Testing The Impedance (Loop-Through Configuration Only) - Extron electronics SF 26CT User Manual

Troubleshooting

The following signal test points can be used to troubleshoot speaker system problems.

Testing Source Signal (all configurations)

The source signal can be tested by connecting to the inner + (IN) and – (IN) terminals of the
captive screw connector.
Amplifier
Figure 29.

Testing the Impedance (Loop-Through Configuration Only)

The impedance of the speakers downstream of the one being tested can be measured
while the system is on. To do this, connect to the outer (LOOP) terminals of the captive
screw connector, as shown below.
Amplifier
Figure 30.
Red Wire (+) from Amplifier
Black Wire (-) from Amplifier
Test Points
Signal Test Points — Parallel Configuration
Red Wire (+) from Amplifier
Black Wire (-) from Amplifier
Test Points
Impedance Test Points — Loop-through Configuration
Impedance Test Points
To next speaker(s)
SF 26CT User Guide • Reference Information 23