Owner's Manual

En 70
APPENDIX
Refer to the table below when this unit does not function properly.
If the problem you are experiencing is not listed below, or if the instructions below do not help, turn off this unit, disconnect the power cable, and contact the nearest authorized Yamaha dealer or service
center.
General
Troubleshooting
Problem Cause Remedy
See
page
The power will not
turn on.
The protection circuitry operated
3 times consecutively.
As a safety precaution, when the protection
circuitry operates 3 times consecutively, the
capability to turn on the power is disabled.
Please contact your nearest Yamaha dealer
or service center to request repair.
—
The unit enters
standby mode soon
after the power is
turned on.
The power cable is not completely
inserted.
Connect the power cable properly to an AC
wall outlet.
—
(When this unit is turned back on
and “CHECK SP WIRES!” is
displayed.) The protection
circuitry has been activated
because this unit was turned on
while a speaker cable was shorted.
Make sure that all speaker cables between
this unit and speakers are connected
properly.
12
This unit cannot be
turned off or does
not work properly.
The internal microcomputer is
hung-up due to an external electric
shock (such as lightning or
excessive static electricity) or by a
drop in power supply voltage.
Disconnect the power cable from the AC
wall outlet, wait about 30 seconds and then
plug it in again.
—
The batteries in the remote control
may have lost their charge.
Replace all batteries. 4
The unit enters
standby mode.
The protection circuitry has been
activated because of a short circuit,
etc.
Check that the speaker with an impedance
of at least 6Ω.
—
(U.S.A. and Canada models)
Check that the speaker impedance settings
are correct.
12
After display of a
countdown on the
front panel, the unit
goes into standby
mode.
If you do not use take any action,
the Auto Power Down function
operates.
Turn on the unit, and play the source again. —
In the Setup menu “AutoPowerDown”
(“Func. Setup” → “AutoPowerDown”),
increase the time until switching to standby
mode, or turn off the Auto Power Down
function.
58
Sound/images
suddenly go off.
The protection circuitry has been
activated because of a short circuit,
etc.
Check that the speaker wires are not
touching each other, then turn the unit back
on.
—
The sleep timer has turned off the
unit.
Turn on the unit, and play the source again. —
Problem Cause Remedy
See
page