1. RX-V4A
2. TROUBLESHOOTING
3. When any problem appears
4. Power, system, or remote control trouble

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 z (power) on the front panel for more than 15 seconds to reboot the unit. If the problem persists, disconnect the power cable from the AC wall outlet and plug it again.
• The volume operation on the front panel is disabled.
• Set “Volume Knob Lock” in the “Front Display” menu to “Off”. For details, see the following:
• “Setting the use of the volume on the front panel”
• The operation of SELECT/ENTER on the front panel is disabled.
• Set “Input Selector Lock” in the “Front Display” menu to “Off”. For details, see the following:
• “Setting the use of the input selector on the front panel”
• The operation of SCENE on the front panel is disabled.
• Set “Scene Key Lock” in the “Front Display” menu to “Off”. For details, see the following:
• “Setting the use of the scene key on the front panel”