Appendix; Troubleshooting - Yamaha RX-V420RDS Mode D'emploi

APPENDIX

Refer to the chart below when the unit does not function properly. If the problem you are experiencing is not listed below or
if the instruction below does not help, set this unit in the standby mode, disconnect the power cord and contact the nearest
authorized YAMAHA dealer or service center.
I General
Problem
The unit fails to turn on
when STANDBY/ON (or
POWER) is pressed, or
enters in the standby
mode soon after the
power has been turned
on.
No sound and/or no
picture.
The sound suddenly
goes off.
Only the speaker on one
side can be heard.
46

TROUBLESHOOTING

Cause
The power cord is not connected or the plug is
not completely inserted.
The IMPEDANCE SELECTOR switch on the
rear panel is not fully set to the left or right
position.
The protection circuit has been activated.
Incorrect input or output cable connections.
An appropriate input source has not been
selected.
The speaker connections are not secure.
The main speakers to be used have not been
selected properly.
The volume is turned down.
Digital signals other than PCM audio, Dolby
Digital or DTS signal which this unit cannot
reproduce are being input to this unit by playing
a CD-ROM, etc.
The protection circuit has been activated
because of a short circuit, etc.
The sleep timer has functioned.
Incorrect cable connections.
Remedy
Firmly connect the power cord.
Set the switch fully to the left or right position
when the unit is in the standby mode.
Make sure all speaker wire connections on this
unit and on all speakers are secure and that the
wire for each connection does not touch
anything other than its respective connection.
Connect the cables properly. If the problem
persists, the cables may be defective.
Select an appropriate input source with INPUT
l / h or 6CH INPUT (or the input selector
buttons).
Secure the connections.
Select the main speakers with SPEAKERS A
and/or B.
Turn up the volume.
Play a source whose signals this unit can
reproduce.
Check the IMPEDANCE SELECTOR switch is
set to the appropriate position and then turn the
unit back on.
Check the speaker wires are not touching each
other and then turn the unit back on.
Turn on the power, and play the source again.
Connect the cables properly. If the problem
persists, the cables may be defective.
Refer to
page
18
18
16, 17
12 – 15
21
16, 17
21
22
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18
16, 17
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