Troubleshooting: Signal Test Points; Testing Source Signal (All Configurations); Testing The Impedance (Loop-Through Configuration Only) - Extron electronics SF 3C LP User Manual

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Troubleshooting: Signal Test Points

Specific test points can be used to troubleshoot speaker system problems.

The source signal can be tested by connecting to the inner + (IN) and – (IN) terminals of the

captive screw connector.

The impedance of the speakers downstream of the one being tested can be measured

while the system is on by connecting to the outer (LOOP) terminals of the captive screw

connector, as shown below.

Red Wire (+) from Ampliﬁer

Ampliﬁer

Black Wire (-) from Ampliﬁer

Figure 46.

Signal Test Points — Parallel Configuration

Red Wire (+) from Ampliﬁer

Ampliﬁer

Black Wire (-) from Ampliﬁer

Impedance Test Points

Figure 47.

Impedance Test Points — Loop-through Configuration

Test Points

SF 3C LP and SF 3CT LP User Guide • Installation

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