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APPENDIX ➤ Troubleshooting En 138
Refer to the table below when the 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 the unit and power amplifier, disconnect the power cable, and contact the
nearest authorized Yamaha dealer or service center.
First, check the following:
a The power cables of the unit, power amplifier, TV and playback devices (such as BD/DVD players) are connected to AC
wall outlets securely.
b The unit, power amplifier, subwoofer, TV and playback devices (such as BD/DVD players) are turned on.
c The connectors of each cable are securely inserted in to jacks on each device.
Power, system and remote control
Troubleshooting
Problem Cause Remedy
The power does not turn on.
The protection circuitry has been activated three times
consecutively. When the unit is in this condition, the standby
indicator on the unit blinks if you try to turn on the power.
As a safety precaution, capability to turn on the power is disabled. Contact your
nearest Yamaha dealer or service center to request repair.
The power does not turn off.
The internal microcomputer has frozen, due to an external electric
shock (such as lightning or excessive static electricity) or to a drop
in the power supply voltage.
Hold down MAIN ZONE z on the front panel for more than 10 seconds to
initialize and reboot the unit. (If the problem persists, disconnect the power cable
from the AC wall outlet and plug it again.)
The unit enters standby mode automatically.
The sleep timer worked. Turn on the unit and start playback again.
The auto-standby function kicked in because the unit was not used
for the specified time.
To disable the auto-standby function, set “Auto Power Standby” in the “Setup”
menu to “Off” (p.121).
The unit is not reacting.
The internal microcomputer is frozen, due to an external electric
shock (such as lightning or excessive static electricity) or to a drop
in the power supply voltage.
Hold down MAIN ZONE z on the front panel for more than 10 seconds to
initialize and reboot the unit. (If the problem persists, disconnect the power cable
from the AC wall outlet and plug it again.)
The unit cannot be controlled using the remote
control.
The unit is out of the operating range. Use the remote control within the operating range (p.5).
The batteries are weak. Replace with new batteries.
The unit’s remote control sensor is exposed to direct sunlight or
strong lighting.
Adjust the lighting angle, or reposition the unit.
The remote control is set to control external devices.
Press SOURCE/RECEIVER to set the remote control to control the unit (the key
lights up in orange).
The remote control IDs of the unit and the remote control are not
identical.
Change the remote control ID of the unit or the remote control (p.125).