8.0 E4 System Troubleshooting

8.4.3User interface keypads do not operate correctly

Check wiring of RJ-45 connectors.

Check for breaks/shorts in cable.

Using the Installer™ software, check the Error Log for a periph- eral controller error.

8.4.4 Bad sound in a zone

Bad sound

User interface keypads exhibit strange behavior

Is the sound

Yes

 

 

unnatural?

 

 

 

 

No

 

 

Verify that the correct Speaker EQ is selected in the Installer™ soft- ware for that zone.

Verify that the speakers are wired in phase. Check the rear panel mark- ings.

Is keypad connected

No

 

 

to the correct ZONE

 

 

on the E4 unit?

 

 

 

Yes

 

 

 

 

 

 

 

 

 

Is the keypad

No

connector wiring

 

 

 

 

correct?

 

 

Yes

Are all

sources to be No controlled assigned to

the ZONE? (Std. and

AV keypad)

Yes

Connect the keypad to the correct zone on the E4 unit.

Correct the keypad connector wiring.

Check source assignments using Installer™ software.

Is the AMP OUTPUT

Yes

 

 

indicator flashing?

 

 

 

No

 

 

 

 

 

 

 

 

 

Are input and

Yes

output indicators green

 

 

 

 

and sound is

 

 

distorted?

 

 

 

No

 

 

 

 

 

 

 

 

 

Is the input signal

Yes

Reduce the input gain using Installer™ software until the indicator is solid green.

Verify that the input source signal is clean. If source is from a mixer, decrease the mixer gain.

Verify that the loudspeakers are not being overdriven or are dam- aged.

Is the

page source No assigned to the ZONE?

(Paging keypad

only)

Check source assignments using Installer™ software.

clean at the E4 input?

No

Verify that the total load imped- ance presented to the E4 output is within specified limits for the selected mode of operation.

 

Yes

 

 

 

 

 

Does the Installer

Yes

Error Log list any periph-

 

 

 

 

eral controller

 

 

faults?

 

 

 

No

 

 

 

 

 

 

 

 

 

Contact Bose

 

 

Customer Service.

 

 

See troubleshooting for the peripheral controller.

Verify source

hardware settings

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Bose E4 manual User interface keypads do not operate correctly, Bad sound in a zone

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