N11 RADIO CANNOT BE HEARD, IS HARD TO HEAR - Alfa - 147 - eLearn

3022685 - N11 RADIO CANNOT BE HEARD, IS HARD TO HEAR

When the control is operated, the radio comes on, but the sound is poor or crackly.

The defect persists even when tuning into different broadcasters or whilst listening to a tape.

1	SPEAKER CONNECTIONS CHECK	All OK	Problems met	Operation
		Results of the tests
	Check the connections between the speakers and the radio See E3510 RADIO	Continue to Step 2	Connections not correct	Restore the connections : See E3510 RADIO
2	SPEAKER CHECK	All OK	Problems met	Operation
	Check the operation of the speakers.	Continue to Step 3	Front speaker defective	Replace the speaker Op. 5570T90
			Front tweeter defective	Replace the speaker Op. 5570T92
			Rear speaker defective	Replace the speaker Op. 5570T96
			Rear tweeter defective	Replace the speaker Op. 5570T94
3	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists

When the control is operated, the radio comes on, but the sound is poor or crackly.

The defect persists even when tuning into different broadcasters or whilst listening to a tape.

0	PRELIMINARY CHECK	All OK	Problems met	Operation
		Results of the tests
	Check that the audio ambient is not OFF. Check that the FADER and the BALANCE have not been moved and placed at zero	Continue to Step 1	AUDIO OFF condition and/or poor balance of the Connect audio channels	Restore the correct values
1	INTERNAL AMPLIFIER OPERATION CHECK	All OK	Problems met	Operation
	Check that the fault is not present for other audio sources. (Listen to an audio reference CD in good condition in the Connect player and/or tune into a radio station with good reception in that area))	Continue to Step 2	Poor audio reception from the CD only	Replace the Connect Op. 5580P20
			Poor audio reception from the tuner only.	See table N12 POOR RADIO RECEPTION
			Poor audio reception for all sound sources.	Continue to Step 3
2	ERRORS CHECK	All OK	Problems met	Operation
	With the Examiner in the 'Reading Parameters' ambient for the Connect Node, check that there are no errors or that the following one or more errors are not present: Front speaker right Front speaker left Rear speaker right Rear speaker left GPS aerial AM/FM aerial Internal error.	Continue to Step 4	Error for right front speaker.	Continue to Step 3
			Error for left front speaker.	Continue to Step 3
			Error for right rear speaker.	Continue to Step 3
			Error for left rear speaker.	Continue to Step 3
			GPS aerial error.	See table N36 THE NAVIGATOR IS NOT WORKING
			AM/FM aerial error.	See table N12 POOR RADIO RECEPTION
			Internal error	Replace the Connect Op. 5580P20
3	CHECK WITH ACTIVE DIAGNOSIS	All OK	Problems met	Operation
	Check the operation of the speakers using the Examiner in 'Active Diagnosis' ambient for the Connect Node, Front speaker right Front speaker left Rear speaker right Rear speaker left	Continue to Step 5	Speaker(s) defective	Replace the defective speaker(s)
4	SPEAKER CONNECTIONS CHECK	All OK	Problems met	Operation
	Check the connections between the speakers and the Connect See E3510 RADIO	Continue to Step 5	Connections not correct	Restore the connections See E3510 RADIO
5	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Replace the Connect Op. 5580P20