Network/Usb Troubles; Cannot Connect To Network - Denon AVR-3311CI Service Manual

5. Network/USB

5.1. Cannot connect to network

Is the LAN cable properly connected?
Are the AVR-3311CI's network settings correct?
Are the router, hub and other peripherals properly connected?
Are the router's settings correct?
Is a voltage (5V) being supplied between N4610 3pin and 4pin?
Is input voltage (3.3V) being supplied of U4601?
Is output voltage (1.2V) being supplied of U4603?
Is the version of IMG or Ethernet SBL displayed with Version check
mode?
The U4202 and surrounding circuitry are defective.
Checking the environment
YES
Checking the settings
YES
YES
YES
YES
Checking the set (AVR-3311CI)
YES
YES
YES
YES
NO
Check the LAN cable properly then turn the
power back on.
Set the IP address and other parameters
properly. For a fixed IP setting, check
NO
whether the IP address is redundant with
that of other devices, and check whether the
subnet mask setting is correct.
NO
Connect properly to peripherals.
Check the router's operating instructions
NO
and set properly.
Check whether there are connection
restrictions due to the MAC address, etc.
NO
The circuit from AC inlet to N4610 is defective.
NO
The U4601 and surrounding circuitry or
circuitry of 3.3v device is defective.
NO
The U4603 or U3900 and surrounding
circuitry is defective.
NO
The firmware of ethernet is defective.
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