Denon AVR-4520, Service Manual

Page: 9 / 281

9
Initializing INTEGRATED NETWORK AV RECEIVER
INTEGRATED NETWORK AV RECEIVER initialization should be performed when the μcom, peripheral parts of μcom,
and Digital P.W.B. were replaced.
1. Turn off the power pressing "Power operation (
X
)" button.
2. Press "Power operation (
X
)" button while simultaneously while pressing "Cursor
d
"
and "Cursor
f
"
buttons.
3. Check that the entire display is flashing at intervals of about 1 second, and then release the 2 buttons.
The microprocessor will be initialized.
Service Jig
When you repair the printing board, you can use the following JIG (Extension cable kit).
Please order it from Denon Official Service Distributor in your region if necessary.
8U-110084S :
EXTENSION UNIT KIT
: 2 Set
NOTE
: • If step 3 fails, start over from step 1.
• All user settings will be lost and the factory setting will be recovered after the set is initialized.
So make sure to note down your setting beforehand for restoring after the initialization.
X
Cursor
d
Cursor
f
CAUTION IN SERVICING