Marantz ER2500, Service Manual

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7. BACK END SOFTWARE (Firmware) UPDATE PROCEDURE
Necessary Equipment
• Update Disc (for Back End Software) part no.: 90M-ER2500xxx.
1. First, connect TV monitor to the unit.
2. Press POWER ON/STANDBY button to turn on the unit.
3. Press OPEN/CLOSE button to open the tray.
4. Insert the Update Disc.
5. Press OPEN/CLOSE button to close the tray.
6. The unit enters the firmware update mode automatically.
7. “LOADING.” is displayed on the Front display.
8. The following updating state is displayed on the TV screen.
ERASE: >>>>>>>>>>
WRITE: >>>>>>>>>>
FINISH:
9. After update is finished, the tray opens automatically.
10. Remove the Update Disc on the tray.
11. Press the POWER ON/STANDBY button to turn off the unit.