Cannot Connect To The Network - Denon AVR-A110 Service Manual

5. Network / Bluetooth / USB

5.1. Cannot connect to the network

Check the connection environment
Is the LAN cable correctly inserted?
YES
Check the setting
Are the network settings of this unit correct?
YES
Are peripheral devices such as the router and
hub connected to this unit correctly?
YES
Are the router settings correct?
YES
Checking the unit
Can the voltage (5V) be confirmed between
[N6001 : 2, 3pin - 4, 5pin]?
YES
NO
Insert the LAN cable correctly and then turn on
the power again.
NO
Set the IP address, etc. correctly.
When the static IP address is used, check that no
other devices have the same IP address and that
the subnet mask settings are correct.
NO
Connect the peripheral devices correctly.
NO
Check the instruction manual of the router and
configure the settings correctly.
Check that there are no connection restrictions
by MAC addresses, etc.
NO
The circuit between the AC inlet and [N6001] is
faulty.
Check the SMPS PCB.
NO
Can the output voltage (5V) to
Is NET5V_POWER [U6201 :
[Q8007 : FET-SW] be con-
uCOM 48pin] "Hi" ?
firmed?
YES
NO
Can the output voltage (1.2V)
Is NET3.3V_POWER [U6201 :
to [Q8009 : FET-SW] be con-
uCOM 135pin] "Hi" ?
firmed?
YES
92
NO
The circuit of NET5V_POWE
between [U6201 and Q8007]
are faulty.
YES
The circuit around [Q8007 :
FET-SW] is faulty.
NO
The circuit of NET3.3V_
POWER between [U6201 and
Q8009] are faulty.
YES
The circuit around [Q8009 :
FET-SW] is faulty.
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