Check the connection environment
YES
YES
YES
YES
YES
Are the network settings of this unit correct?
Are peripheral devices such as the router and hub connected to this
unit correctly?
Are the router settings correct?
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.
Connect the peripheral devices correctly.
Check the instruction manual of the router
and configure the settings correctly.
Check that there are no connection restric-
tions by MAC addresses, etc.
NO
NO
NO
5. Network / Bluetooth / USB
5.1. Cannot connect to the network
Is the LAN cable correctly inserted?
Insert the LAN cable correctly and then turn
on the power again.
NO
Check the connection environment
Checking the unit
YES
YES
Can the D3.3V output voltage (3.3 V) to
U1004 (DC-DC Conv.) be confirmed?
Can the voltage (5V) be confirmed between pin 2 and pin 5 of
CN4141?
Is D5V_POWER (U1013 uCOM 85pin)
"Hi" ?
The circuit of D5V_POWER between
U1013 and U1004 are faulty.
The circuit around U1004(DC-DC.
Conv.) is faulty.
The circuit between the AC inlet and
CN4141 is faulty. Check the SMPS PCB.
NO
NO
NO
YES
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