Appendix; Troubleshooting; General - Yamaha YHT-393 Owner's Manual

APPENDIX

Troubleshooting

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

Problem Cause
The power will not The protection circuitry operated
turn on. three times consecutively.
The unit enters The power cable is not completely
standby mode soon
inserted.
after the power is
The speaker impedance settings
turned on.
are incorrect.
(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.
This unit cannot be
The internal microcomputer is
turned off or does hung-up due to an external electric
not work properly. shock (such as lightning or
excessive static electricity) or by a
drop in power supply voltage.
The batteries in the remote control
may have lost their charge.
The unit enters The protection circuitry has been
standby mode. activated because of a short circuit,
etc.
See
Remedy
page
As a safety precaution, when the protection —
circuitry operates three times consecutively,
the capability to turn on the power is
disabled. Please contact your nearest
Yamaha dealer or service center to request
repair.
Connect the power cable properly to an AC —
wall outlet.
Set the speaker impedance to match your 10
speakers.
Make sure that all speaker cables between 12
this unit and speakers are connected
properly.
Disconnect the power cable from the AC —
wall outlet, wait about 30 seconds and then
plug it in again.
Replace all batteries. 4
Check that the speaker impedance settings 10
are correct.
Problem Cause
After display of a If you do not use take any action,
countdown on the the Auto Power Down function
front panel, the unit operates.
goes into standby
mode.
"Internal Error" is An internal error has occurred.
displayed on the
front panel display.
Sound/images The protection circuitry has been
suddenly go off. activated because of a short circuit,
etc.
The sleep timer has turned off the
unit.
See
Remedy
page
Turn on the unit, and play the source again. —
In the Setup menu "AutoPowerDown" 47
("Func. Setup" → "AutoPowerDown"),
increase the time until switching to standby
mode, or turn off the Auto Power Down
function.
Please contact authorized Yamaha dealer or —
service center to request repair.
Check that the speaker impedance settings 10
are correct.
Check that the speaker wires are not —
touching each other, then turn the unit back
on.
Turn on the unit, and play the source again. —
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