Bose® SA-4 Owner's Manual

Care and Maintenance

English - 25

Problem

What to do

Neither speaker

plays

• 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.

Only one speaker

plays

Make sure the cables are in good condition and are firmly

connected at both ends for the speaker that does not play.

One speaker still

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 ampli-

fier 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.

Right and left

stereo channels are

heard on the wrong

speakers

• 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.

Bass or treble is

weak

Check the speaker cable connections. Make sure the individual

wires are connected + to + and – to –.

Interference

• 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.

SoundTouch

™

controller does not

adjust the volume

• Replace the batteries in the SoundTouch™ controller.
• If you are using a local volume control (VCA), turn it to the off

position.

Volume suddenly

decreases

• 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 ampli-

fier’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 automaticaly if the amplifier overheats. Increasing ventila-

tion should ensure continuous, even volume.

Wireless adapter

does not awaken

from power saving

mode.

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 amplier.