Denon AVR-X550BT - Initializing this Unit

Make sure to initialize this unit after replacing the microcomputer or any peripheral equipment, or the
digital PCB.
1. Press the power button to turn off the power.
2. While holding down buttons "
TUNER PRESET CH+
" and "
TUNE +
" simultaneously, press the power
button to turn on the power.
3. Release the buttons after conrming that the display ashes at 1-second intervals.
＊ The unit is initialized.
NOTE： • If the unit fails to enter the service mode in step 3, repeat the procedure from step 1.
• Initializing the device restores the customized settings to the factory settings. Write down
your settings in advance and recongure the settings after initialization.
AVR-X550BT
TUNER
PRESET CH +
X
TUNE +
Initializing this Unit
AVR-X550BT
POST-SERVICE PRECAUTIONS
Make sure to initialize this unit after replacing the microcomputer or any peripheral equipment, or the
digital PCB.
1. Press the power button to turn off the power.
2. While holding down buttons "
SOUND MODE
1
" and "
TUNER PRESET CH+
" simultaneously, press
the power button to turn on the power.
3. Release the buttons after conrming that the display ashes at 1-second intervals.
＊ The unit is initialized.
NOTE： • If the unit fails to enter the service mode in step 3, repeat the procedure from step 1.
• Initializing the device restores the customized settings to the factory settings. Write down
your settings in advance and recongure the settings after initialization.
AVR-S540BT
MASTER VOLUME
SOUND
MODE
1
X
TUNER
PRESET CH +
Initializing this Unit
AVR-S540BT
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
7