Yamaha AV Receiver owner manual 14-18

TROUBLESHOOTING

Problem	Cause	Remedy	Refer to
			page
Dolby Digital or DTS	The connected component is not set to	Make an appropriate setting following the operating	—
sources cannot be	output Dolby Digital or DTS digital	instructions for your component.
played. (Dolby Digital	signals.
or DTS indicator in
	The input mode is set to ANALOG.	Set the input mode to AUTO or DTS.	32
the front panel
display does not light
up.)
A “humming” sound	Incorrect cable connections.	Firmly connect the audio plugs. If the problem	—
can be heard.		persists, the cables may be defective.
The volume level	The component connected to the OUT	Turn on the power to the component.	—
cannot be increased,	(REC) jacks of this unit is turned off.
or the sound is
distorted.
The sound effect	It is not possible to record the sound effect
cannot be recorded.	with a recording component.
A source cannot be	The source component is not connected to	Connect the source component to the DIGITAL	14-18
recorded by a digital	this unit’s DIGITAL INPUT jacks.	INPUT jacks.
recording component
	Some components cannot record the
connected to this
DIGITAL OUTPUT	Dolby Digital or DTS sources.
jack.
A source cannot be	The source component is not connected to	Connect the source component to the analog AUDIO	14-18
recorded by an	this unit’s analog AUDIO IN jacks.	IN jacks.
analog component
connected to the
AUDIO OUT jacks.
The sound field	“MEMORY GUARD” in SET MENU is	Select OFF.	61
parameters and some	set to ON.
other settings on this
unit cannot be
changed.
This unit does not	The internal microcomputer has been	Disconnect the AC power cord from the outlet and	—
operate properly.	frozen by an external electric shock (such	then plug it in again after about 30 seconds.
	as lightning or excessive static electricity)
	or by a power supply with low voltage.
“CHECK SP WIRES”	Speaker cables are short circuited.	Make sure all speaker cables are connected correctly.	12
appears in the front
panel display.
There is noise	This unit is too close to the digital or high-	Move this unit further away from such equipment.	—
interference from	frequency equipment.
digital or radio
frequency equipment,
or this unit.
The picture is	The video source uses scrambled or
disturbed.	encoded signals to prevent dubbing.
This unit suddenly	The internal temperature becomes too	Wait about 1 hour for this unit to cool down and then	—
turns into the standby	high and the overheat protection circuitry	turn it back on.
mode.	has been activated.

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