244000510 - N11 RADIO CANNOT BE HEARD, IS HARD TO HEAR

When the control is operated, the sound cannot be heard or is poor quality or crackly

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the sound is not off. Check that the FADER and BALANCE have not be set to zero	Move on to Step	Condition of sound off and/or incorrect instrument balance	Restore correct values
1	CONNECT OPERATION CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Use the CONNECT self-diagnosis to detect faults in related systems    See Test 5580PA CHECK OPERATION OF CONNECT RADIO MODULE	Move on to Step	1. Geographical area found to be incorrect	1. Restore correct geographical area
			2. Speaker status found to be in red field	Move on to Step
			3. Aerial status found to be in red field.	Move on to Step
			4. Communication status found to be in red field (internal error)	4. Replace the Connect unit
2	SPEAKER CONNECTION CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the connections between the speakers present and CONNECT    See E3510 RADIO	Move on to Step	Connections not correct	Repair the connections    See E3510 RADIO
3	SPEAKER CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check speaker operation	Move on to Step	Speaker/s defective	Replace defective Speaker/s
4	INTERNAL AMPLIFIER OPERATION CHEK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is not present with other sound sources. (Play an audio CD in the connect CD player)	Move on to Step	Poor sound reproduction	Replace the Connect unit
5	RECEPTION ZONE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is not present in areas of poor reception. The reception should improved significantly when the vehicle moves away from such areas. If the reception area is very poorly served, attempts to switch between frequencies may be perceived as pauses	Move on to Step	Poor reception	Deactivate the AF function
6	AMPLIFIED AERIAL CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check: continuity of aerial coaxial cable and aerial aerial amplifier power supply correct aerial impedence	Move on to Step	1. Aerial lead fault	1. Repair or replace the aerial lead
			2. Amplifier power lead fault	2. Repair or replace the supply lead    See E3510 RADIO
			3. Aerial amplifier fault	3. Change the aerial amplier
			4. Incorrect aerial impedence	4. epair or replace the aerial
7	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present