5. Network / Bluetooth / USB
Check the setting
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 restrictions
by MAC addresses, etc.
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.
Check the connection environment
Checking the unit
YES
YES
YES
Can the output voltage (5V) to
[Q8007 : FET-SW] be con-
firmed?
Can the voltage (5V) be confirmed between
[N6001 : 2, 3pin - 4, 5pin]?
Is NET5V_POWER [U6201 :
uCOM 48pin] "Hi" ?
The circuit of NET5V_POWE
between [U6201 and Q8007]
are faulty.
The circuit around [Q8007 :
FET-SW] is faulty.
The circuit between the AC inlet and [N6001] is
faulty.
Check the SMPS PCB.
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
Can the output voltage (3.3V)
to [Q8009 : FET-SW] be con-
firmed?
Is NET3.3V_POWER [U6201 :
uCOM 135pin] "Hi" ?
The circuit of NET3.3V_
POWER between [U6201 and
Q8009] are faulty.
The circuit around [Q8009 :
FET-SW] is faulty.
Go to next page.
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
90
