Denon AVR-X3300W Service Manual page 120

3-1. Selecting the Mode for Service-related
3-1.1. Actions
Select diagnostic mode (service path check mode), protection history display mode, or 232C standby
clear mode.
3-1.2. Starting up
2. While holding down buttons "ZONE2 SOURCE", "DIMMER" and "STATUS" simultaneously, press the
power button to turn on the power.
Select the desired mode using the "TUNER PRESET CH+" button, then press the "STATUS" button to
confirm.
3-1.3. Displaying and Selecting Each Mode
The information shown on the display switches each time the "TUNER PRESET CH+" button is
pressed.
Press the "STATUS" button to set the currently displayed mode and restart the device.
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1.SERVICE CHECK
Service Path Check Mode：See "DIAGNOSTIC
The Video and Audio paths can be checked.
This function is convenient for confirming problem paths in the product and checking the
paths after repairing.
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2.PROTECTION
The protection history can be checked.
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3.RS232C RESET
Switches from 232C standby mode to normal standby mode.
MODE"
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4.OP INFO
Operation Info for the unit can be checked.
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5.TUNER FRQ SET
Enables reception STEP of the ANALOG TUNER to be changed.
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6.REMOTE ID
This function is for operating only the desired AV receiver.
3-1.4. Canceling the selected mode
Press the power button to turn off the power.
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