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 cor
-
rectly?
Are the router settings correct?
Set the IP address, etc. correctly.
If the IP settings are fixed, 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 an output voltage (3.3V) to
IC112(DC-DC Conv.) be confirmed?
Can a voltage (5V) be confirmed between pin 2 and pin 5 of
CN903?
Is D5V_POWER (IC151 uCOM 85pin)
"Hi" ?
The circuit of D5V_POWER between
IC151 and IC112 are faulty.
The circuit around IC112(DC-DC.
Conv.) is faulty.
The circuit between the AC inlet and CN903
is faulty. Check the SMPS PCB.
NO
NO
NO
YES
99