Bose CE-1 CONTROL EXPANDER UNIT Operations Instructions download pdf (Page 75)

75

GB

Additional Information

Troubleshooting

If you experience any of the following

difficulties while using the receiver, use this

troubleshooting guide to help you remedy the

problem.

There is no sound, no matter which

component is selected, or only a very

low-level sound is heard.

• Check that the speakers and components

are connected correctly and securely.

• Check that all speaker cords are connected

correctly.

• Check that both the receiver and all

components are turned on.

• Check that MASTER VOLUME is not set

to “VOL MIN”.

• Check that headphones are not connected.

• Press MUTING to cancel the muting

function.

• When only a very low-level sound is

heard, check to see if NIGHT MODE is

activated.

• Check that you have selected the correct

component with the input buttons.

• The protective device on the receiver has

been activated. Turn off the receiver,

eliminate the short-circuit problem, and

turn on the power again.

There is no sound from a specific

component.

• Check that the component is connected

correctly to the audio input jacks for that

component.

• Check that the cord(s) used for the

connection is (are) fully inserted into the

jacks on both the receiver and the

component.

There is no sound from one of the front

speakers.

• Connect a pair of headphones to the

PHONES jack to verify that sound is

output from the headphones. If only one

channel is output from the headphones, the

component may not be connected to the

receiver correctly. Check that all the cords

are fully inserted into the jacks on both the

receiver and the component. If both

channels are output from the headphones,

the front speaker may not be connected to

the receiver correctly. Check the

connection of the front speaker which is

not outputting any sound.

• Make sure you have connected to both the

L and R jacks of an analog component, and

not only to either the L or R jack. Use an

audio cord (not supplied).

There is no sound from digital sources

(from COAXIAL or OPTICAL input

jack).

• Check that the INPUT MODE is not set to

“ANALOG” (page 65).

• Check to make sure the selected digital

audio input jack is not assigned to other

inputs using DIGITAL ASSIGN function

(page 66).

The left and right sounds are

unbalanced or reversed.

• Check that the speakers and components

are connected correctly and securely.

• Adjust the balance parameters using the

LEVEL menu.

“NO INPUT” appears on the display

• Check that your component is connected

to the COAXIAL or OPTICAL jack. If no

signal is input through the COAXIAL or

OPTICAL jack, “NO INPUT” appears on

the display and this is not a malfunction.

Audio

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