Denon DRA-800H Service Manual page 134

PROCEDURE AFTER REPLACING THE PCB.
PROCEDURE AFTER REPLACING THE U-COM, ETC.
FIRMWARE UPDATE PROCEDURE
1. Items necessary for update
2. Update preparation with a USB flash drive
3. Update method when the DIGITAL PCB or network module is replaced (Using a USB flash drive)
4. Update Method for Service Region Settings
5. Normal Firmware Update Method from USB Flash Drive
6. Normal Firmware Update Method from OTA
7. About the error codes
UPDATING
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