Marantz NR1605/FB, Service Manual, Page: 25 / 190

3. Selection Modes for Service-related Operations
3.1. Actions
Select diagnostic mode (service path check mode), protection history display mode, or Operation Info mode, or TUNER
STEP mode.
3.2. Starting up
Hold down buttons " ZONE2 SOURCE " and " STATUS " at the same time and press the power button to turn on the power.
Select the mode using the button " INTERNET RADIO ", and press the button " STATUS " to commit the selection.
3.3. Displaying and Selecting Each Mode
The information shown on the display changes each time the button " INTERNET RADIO " is pressed.
Press the button " STATUS " to set the currently displayed mode and restart the device.
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1 . S E R V I C E C H E C K
Service Path Check Mode
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The Video and Audio paths can be checked.
This function is convenient for confirming problem paths in the product and executing a path
check after repair.
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2 . P R O T E C T I O N
The protection history can be checked.
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4 . O P I N F O
Operation Info for the unit can be checked.
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5 . T U N E R F R Q S E T
Enables reception STEP of the ANALOG TUNER to be changed.
3.3. Canceling the mode
Press the power button to turn off the power.
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