Network/Bluetooth/Usb - Denon AVR-X3200W Service Manual

5. Network/Bluetooth/USB

5.1. Cannot connect to the network
Is the LAN cable correctly inserted?
Are the network settings of this unit correct?
Are peripheral devices such as the router and hub connected
correctly?
Are the router settings correct?
Can a voltage (5V) be confirmed between pin 2 and pin 5 of
CN903?
Can an output voltage (3.3V) to
IC112(DC-DC Conv.) be confirmed?
Check the connection environment
YES
Check the connection environment
YES
YES
YES
YES
Checking the unit
YES
NO
Is D5V_POWER (IC151 uCOM 136pin)
"Hi" ?
YES
NO
Insert the LAN cable correctly and then turn
on the power again.
Set the IP address, etc. correctly.
NO
If the IP settings are fixed, check that no
other devices have the same IP address and
that the subnet mask settings are correct.
NO
Connect the peripheral devices correctly.
Check the instruction manual of the router
NO
and configure the settings correctly.
Check that there are no connection
restrictions by MAC addresses, etc.
NO
The circuit between the AC inlet and CN903
is faulty. Check the SMPS PCB.
NO
YES
98
The circuit of D5V_POWER between
IC151 and IC112 are faulty.
The circuit around IC112(DC-DC.
Conv.) is faulty.