Yamaha RX-V757 User Manual
Page 90
88
TROUBLESHOOTING
Problem
Cause
Remedy
Refer to
page
Dolby Digital or DTS
sources cannot be
played. (Dolby Digital
or DTS indicator on
the front panel
display does not light
up.)
The connected component is not set to
output Dolby Digital or DTS digital
signals.
Make an appropriate setting following the operating
instructions for your component.
—
The input mode is set to ANALOG.
Set the input mode to AUTO or DTS.
37
A “humming” sound
can be heard.
Incorrect cable connections.
Firmly connect the audio plugs. If the problem
persists, the cables may be defective.
—
No connection from the turntable to the
GND terminal.
Connect the grounding cord of your turnable to the
GND terminal of this unit.
19
The volume level is
low while playing a
record.
The record is being played on a turntable
with an MC cartridge.
The turntable should be connected to this unit through
an MC-head amplifier.
19
The volume level
cannot be increased,
or the sound is
distorted.
The component connected to the OUT
(REC) jacks of this unit is turned off.
Turn on the power to the component.
—
The sound effect
cannot be recorded.
It is not possible to record the sound effect
with a recording component.
A source cannot be
recorded by a digital
recording component
connected to this
DIGITAL OUTPUT
jack.
The source component is not connected to
this unit’s DIGITAL INPUT jacks.
Connect the source component to the DIGITAL
INPUT jacks.
15-19
Some components cannot record the
Dolby Digital or DTS sources.
A source cannot be
recorded by an
analog component
connected to the
AUDIO OUT jacks.
The source component is not connected to
this unit’s analog AUDIO IN jacks.
Connect the source component to the analog AUDIO
IN jacks.
15-19
The sound field
parameters and some
other settings on this
unit cannot be
changed.
“MEMORY GUARD” in SET MENU is
set to ON.
Select OFF.
64
This unit does not
operate properly.
The internal microcomputer has been
frozen by an external electric shock (such
as lightning or excessive static electricity)
or by a power supply with low voltage.
Disconnect the AC power cord from the outlet and
then plug it in again after about 30 seconds.
—
“CHECK SP WIRES”
appears in the front
panel display.
Speaker cables are short circuited.
Make sure all speaker cables are connected correctly.
12