Marantz NR1501 manual Troubleshooting, General, Surround, Symptom Cause Solution

ENGLISH

FUNCTIONS	NAMES AND
CONNECTIONS	BASIC
OPERATION	BASIC
CONNECTIONS	ADVANCED
SETUP
OPERATION	ADVANCED
TROUBLESHOOTING
OTHERS

TROUBLESHOOTING

If you have any problem using this product, please be sure to check the items in the following table.

If you trouble cannot be solved, please unplug the power cable immediately and contact your Marantz authorized dealer or service center.

GENERAL

Symptom		Cause		Solution	Page
			Check AC power cord connections.		12
The unit does not	The AC power cord is not properly		Make sure the AC power cord is		12
			firmly inserted into the unit.
turn on.	connected.
			Make sure the power plug is firmly		12
			inserted into the power outlet.
			Check the connection of the input
	The input cables are not fully		cables between this unit and the		9, 10, 11
	connected.		source component (CD player, etc.),
			referring to the connection diagram.
			Set the input selector to the input
	The input selector is in the wrong		terminal to which the source		13
There is no sound.	position.		component (CD player, etc.) is
			connected.
	The volume is too low.		Adjust the volume.		13
	The mute function has been		Cancel the mute function.		13
	activated.
	Headphones are connected to the		Remove the headphones.		28
	unit.
There is no sound	The speaker is not properly		Refer to the connection diagram to
from a certain					8
	connected.		properly connect the speaker.
speaker.
The sound image	•	The polarity (+/-) of some	Unplug the AC power cord
does not localize		speaker cables is incorrect.			8
			and check the speaker cable
correctly and is	•	Speaker position and speaker
			connections.
unnatural.		cable connections are incorrect.
	•	The speaker cable has short-	•	Unplug the AC power cord
		circuited.		and check the speaker cable
				connections.
	•	The unit was played at a higher	•	Turn the volume down a bit.
		volume than it was designed to
		be played.
The STANDBY	•	You are using speakers with	•	Always use speakers with the
		lower impedance than required.		required impedance.
indicator is blinking
	•	The unit was placed and used on	•	For safety's sake, always leave	2, 8
slowly (twice a		a narrow rack or similar confined		enough space around the unit.
second).
		space and became overheated
		inside.	•	Use the remote controller to turn
				on the power.
			•	If the same problem occurs
				again, unplug the AC power cord
				and have the unit serviced at the
				nearest service center.

Symptom	Cause	Solution	Page
The STANDBY		Immediately unplug the AC power
indicator is blinking	There may be something wrong
		cord and have the unit serviced at	−
fast (8 times a	with the unit.
		the nearest service center.
second).
	The unit uses a computer that on
The display is not	rare occasions can malfunction	Unplug the AC power cord and	12
displaying properly.	if affected by static electricity,	then plug it in again.
	lightning or so on.
	The batteries are dead.	Replace the batteries with new	3
		ones.
	The remote controller is out of	Use the remote controller within	3
	range.	range of the unit.
Cannot use the	There is an obstacle between the	Remove the obstacle.	3
remote controller	unit and remote controller.
to operate the unit.	Strong light is falling on the unit's	Prevent strong light from falling on	3
	infrared receptor window.	the infrared receptor window.
	The mode of the remote controller	Press the remote controller’s AMP	7
	is not properly set.	button before operating.
	The unit is set to IR = DISABLE.	Change the setting to IR = ENABLE.	16
A hissing noise
(residual noise) is	The unit has a surround DSP, which	If the noise bothers you when
generated when	can sometimes make a noticeable	listening to a 2CH source, listen in	−
there is no input	hissing noise.	SOURCE DIRECT mode.
signal.
A humming noise	Sometimes a sound will result
is generated from	depending on power source	Turn off electric heaters, etc.	−
inside the unit.	conditions in the home.

SURROUND

Symptom	Cause		Solution	Page
	An AM program, TV sound or other	•	Sound is heard from the center
There is no sound	monaural source is being played		speaker. There is nothing wrong
from the front	in a surround mode other than		with the unit.	8
speaker.	STEREO.	•	Set the speaker selector to the
			correct position.
		When the surround mode is set to
	The surround mode is set to	STEREO, no sound will come from
There is no sound		the center speaker.		38
	STEREO.
from the center		Set the unit to another surround
speaker.		mode.
	CENTER = NO is selected on the	Set CENTER to YES.		22
	SPEAKER CONFIG menu.

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