199000875 - N025 SUBWOOFER NOT WORKING

all the audio channels operate correctly except the subwoofer

		Results of the tests
1	SUBWOOFER POWER SUPPLY CHECK	All OK	Problems encountered	Operation
	Check the subwoofer power supply is correct    See E3510 RADIO     See Test 5570TJ SUBWOOFER POWER SUPPLY CHECK	Move on to Step 2	Power supply interrupted	Restore correct power supply    See E3510 RADIO
2	CHECK THE AUDIO SIGNALS CONTROLLING THE SUBWOOFER	All OK	Problems encountered	Operation
	Check for the presence of audio signals controlling the subwoofer    See Test 5570TK SUBWOOFER OPERATION AUDIO SIGNALS CHECK	Move on to Step 3	Audio signals interrupted	Restore the audio signal wiring
3	ON ENABLEMENT SIGNAL CHECK	All OK	Problems encountered	Operation
	Check for the presence of a subwoofer enablement signal    See Test 5570TJ SUBWOOFER POWER SUPPLY CHECK	End of diagnosis	1. Subwoofer activation signal wiring broken2. Subwoofer defective3. Radio defective	1. Restore correct wiring2. Replace the subwoofer    Op. 5580T40 BOSE SOUND SYSTEM SUBWOOFER - R.R.3. Replace the radio    Op. 5570T80 CAR RADIO EQUIPMENT - R+R