Denon HEOS AVR Service Manual page 52

14. Cannot connect to the network by wired LAN
Is the LAN cable connected correctly?
YES
Are the network settings of this unit correct?
YES
Are peripheral devices such as the router and hub
connected correctly?
YES
Are the router settings correct?
YES
Connect router to this unit according to "QSG".
NG
Connect the LAN cable correctly and turn the
power back on.
NO
Set the IP address and other parameters correctly.
IP settings are fixed. Make sure that the IP address
is not duplicated with another device and that the
subnet mask setting is correct.
NO
Connect the peripheral devices correctly.
NO
Check the Owner's Manual of the router and con-
figure the settings correctly.
Check that there are no connection restrictions
caused by the MAC address.
NO
Check whether the network module is faulty.
15. Cannot connect to the network by wireless LAN
Is the LAN cable connected?
YES
Is the wireless LAN channel for the attempted con-
nection separate from other wireless LAN chan-
nels?
YES
Can other devices (PC, etc.) be connected in the
place where this unit is installed?
YES
Are the 4 antenna cables of this unit connected?
YES
Connect router to this unit according to "QSG".
16. USB flash drive not recognized
Is a USB hub being used?
YES
Is the USB flash drive supported by this unit?
YES
Is there a voltage of 5V in [USB connector PCB
JK502: 1pin]?
YES
The circuit between [JK502 USB connector] and the network module is faulty.
52
NG Remove the LAN cable and turn the power back
on. Do not connect a LAN cable when using a
wireless LAN connection.
NO
Configure the settings so that the LAN channel of
the attempted connection is not duplicated with
any other wireless LAN channels.
NO
Change the router position, install an access point,
etc
NO
Connect the 4 antenna cables of this unit cor-
rectly.
NO
Check whether the network module is faulty.
NG
Do not use a USB hub.
NO
This unit only supports mass storage devices that
have FAT16 or FAT32 format or are MTP compat-
ible.
NO
The circuit around [IC502] is faulty.