Outlaw Audio 7900 Ground Loop Diagram, Troubleshooting Guide

Model 7900 7-Channel Power Ampliﬁer

Owner’s Manual

Problem Solutions

Ampliﬁer will not turn on Master Power Switches turned off (No po wer light LED):

Turn on both Master Power Switches.

Remote trigger cable not properly connec ted:

Verify connection of trigge r cable at both ends.

Ampliﬁer turns on, but no audio from Input plugs not connected to proper jack or are lo ose:

one or more channels Check input connections.

Speakers not connected properly:

Check speaker connections at amp and speaker.

One or both of the AC power cords are not receiving powe r:

Ensure both power cords have power. The ampliﬁer is act ually two power ampliﬁers in one–a

3ch ampliﬁer and a 4ch ampliﬁer. One cord powers the 3ch amp and t he other cord powers

the 4-ch amp. Two power controllers are used so the se operate independently. If one breaker

(on the unit) is tripped or if there is no power for one cord, a g roup of channels will be down.

Depending on which has power, either 3 channels will be los t or 4 channels will be lost. The

standby/on led will be dimmer than for normal operat ion, but this may not be readily noticed.

Audio levels differ Improper settings or output levels f rom the processor or controller:

Check the settings on your preamp, processo r or controller.

Audio plays, then cuts off Ampliﬁer shorted:

Check speaker connections for shor t circuit at amp and speaker.

Troubleshooting

AC Ground

AC Line

A/V

Cables

Main House

Grounding

Cable Feed Coax Cable

Ground Loop Diagram

AC Line

Set-top Box

Troubleshooting Guide