Bose SoundTouchSA-4 Amplifier Owner's Guide - Page 25

Care and Maintenance Problem Neither speaker plays Only one speaker plays One speaker still does not play Right and left stereo channels are heard on the wrong speakers Bass or treble is weak Interference SoundTouch™ controller does not adjust the volume Volume suddenly decreases Wireless adapter does not awaken from power saving mode. What to do • Make sure the amplifier is connected to AC (mains) power. • Make sure the plug is inserted fully and the AC (mains) power outlet is powered. • Make sure content is selected via the SoundTouch™ app. • Disconnect the SoundTouch™ wireless adapter cable from the amplifier. Disconnect AC power from the SA-4 amplifier for three minutes. Reconnect the SoundTouch™ wireless adapter. Reconnect power to the SA-4 amplifier. Make sure the cables are in good condition and are firmly connected at both ends for the speaker that does not play. Try connecting the speaker that does not play to the other speaker cable. If the speaker still does not play, the problem may be with the speaker. If the speaker now plays, you know the speaker and the cable are both good. Disconnect the cable from the amplifier terminal, and connect it to the other terminal connector. If the speaker now plays, the problem is likely in the other speaker cable. Replace it. If the speaker does not play, the problem may be in that channel of the amplifier. • Make sure the cable connected to the SPEAKER OUTPUTS L at the amplifier are connected to the speaker on the left in your listening area, and the cable connected to the SPEAKER OUTPUTS R at the amplifier are connected to the speaker on the right in your listening area. Check the speaker cable connections. Make sure the individual wires are connected + to + and - to -. • Make sure the speaker cables are firmly inserted in the terminals on the back of the speakers and on the amplifier rear panel. Check to be sure no individual wires are touching across terminals. • Make sure the SoundTouch™ wireless adapter is away from metal objects, other audio/video components, and direct heat sources. • Replace the batteries in the SoundTouch™ controller. • If you are using a local volume control (VCA), turn it to the off position. • Lower the volume setting to see if the level returns to normal. If so, the sudden loss of volume was an intentional action of the amplifier's overload protection feature. This engages automatically if the volume is set too high and is overdriving the speakers. Choosing a lower setting should ensure continuous, even volume. • Disconnect the amplifier from AC (mains) power and allow it to cool. Increase ventilation. Reconnect to power. If the volume level returns to normal, the sudden loss of volume was an intentional action of the amplifier's thermal overload protective feature. This engages automatically if the amplifier overheats. Increasing ventilation should ensure continuous, even volume. Disconnect the SoundTouch™ wireless adapter cable from the amplifier. Disconnect AC power from the SA-4 amplifier for three minutes. Reconnect the SoundTouch™ wireless adapter. Reconnect power to the SA-4 amplifier. English - 25