Atlantic Technology 352 PBM THX Subwoofer Troubleshooting Guide, For Future Reference, Problem

Models 222 PBM, 262 PBM and 352 PBM THX	tlantic
	ATECHNOLOGY

Subwoofer Troubleshooting Guide

Once your subwoofer has been set up, you should have many years of maintenance free enjoyment from your system. However, if you should encounter a problem, refer to the following guide to help you find the solution. If a problem persists, you should contact your local authorized Atlantic Technology dealer.

Problem	Possible Cause	Possible Solution
No bass output	AC power cord unplugged or plugged into a	Plug into a working outlet.
	non-working outlet.
	Input cables not securely connected or defective.	Check all connections, then try another input cable.
Audible buzz	Input cable not securely connected or defective.	Check all connections, then try another input cable.
or hum	Single HI LEVEL input connected to the RIGHT channel.	Connect to the LEFT input channel.
	Ground loop through power connection.	Use a 3-to-2 prong AC adapter plug to isolate the chassis’
		ground of the subwoofer.
	Ground loop through antenna or cable TV system input.	Test by disconnecting antenna and/or cable system input leads.
		If hum goes away, install isolation balun(s) at that point.
More than one	More than one source is playing.	All the subwoofer’s inputs are active at all times. Turn off
source audible		unwanted source.
Weak bass	Subwoofer too far from the wall.	Move the subwoofer closer to a wall or corner.
	VARIABLE INPUT LEVEL set too low.	Turn control up somewhat.
Weak bass: vague	Input source connected to HI LEVEL inputs is wired	Check speaker wire connections and reconnect in proper
stereo image	out of phase.	phase.

For Future Reference

Record your speaker(s) serial number(s) and date of purchase here:

Model Number	Serial Number	Date of Purchase
Model Number	Serial Number	Date of Purchase

The serial number is found on the back of the speaker near the connecting terminals.

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