Troubleshooting - Audio Control EX concert series Owner's Manual

1. Turn the system power off.
2. Remove the top panel and locate the cross-
over or Performance Frequency Match
module, as shown in Figure 8 (on the oppo-
site page).
3. Change the appropriate module.
4. Replace the top panel and tighten the
screws.
5. Turn the system power on.

Troubleshooting

1. If you hear a "buzz" or "whine," you may
have a grounding problem. Check all power
connections and cables. Are all components
in the system routed to a common ground
point? Does the head unit have a clean
ground? The factory wire harness doesn't
count.
2. If the condition still exists, turn the system
off and remove the top panel of the EQX
(refer to Figure 8). Locate the GROUND
SELECTOR and switch it to a different
position.
3. Apply power and listen. If the condition still
exists, you've got bigger problems. You'll
need to contact an authorized AudioControl
dealer to solve this issue.
Making Modules
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