140
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8
Lamps are off
Q1
Symptom
▶
Cause
▶
Remedy
Lamps are all off.
The POWER switch is in
STANDBY.
Turn on the POWER switch.
The power cord is not plugged into
an electrical outlet.
If the power cord is not plugged, plug it
correctly.
The main breaker or individual
breaker is thrown.
•
If the breaker is “OUT”, turn it “IN”.
•
If the breaker is “IN”, turn it “OUT”, and
then turn “IN” again.
The power is out.
When the power is out, wait for service to
be restored.
No power is supplied to the
electrical outlet.
(Other electrical appliances do not
function either.)
•
If other appliances do not function either,
ask for repair of the electrical outlet or
electrical wiring.
•
If other appliances function, ask for repair
of the product.
The LAN lamp does
not light up.
The hub or PC is not powered on.
Although the device is connected
to the LAN1 port correctly, the
LAN1 lamp of the product will not
light up unless the device power
is off.
Power on the device connected to the
product.
The device is not connected
correctly.
Disconnect the connectors from the product,
PC and hub, and reconnect them until the
connector clicks.
The LAN cable is not used.
The ISDN cable is used. (Attention
is needed as the shape of the
connector is exactly the same.)
Use the LAN cable.
The LAN (network) card of the PC
does not function correctly, or the
connection mode does not match
with that of the product.
•
Check that the LAN board (card) of the
PC is installed correctly, and it functions
correctly.
•
Check if the communication speed and
connection (duplex) mode of the LAN
board (card) of the PC matches with those
of the product.
The cable is disconnected.
Replace with another LAN cable.