Yamaha PJP-MC24 - page 78

78
Troubleshooting
Q1 When LEDs are off or blinking
SymptomCauseSolution
All LEDs
do not light.
The PJP-MC24 is not turned on. Turn the power switch on.
The power cord is
not connected.
Make sure that the power cord is secured
rmly in the power socket.
The main or
line circuit breakers
have been tripped.
• If the breaker is switched off, switch it
on.
• If the breaker is switched on, switch it
off and then back on again.
There is a power outage. Wait until power returns.
The outlet is not receiving power.
(when other devices cannot be
used either).
• If other devices are not functioning
either, have the outlet or wiring xed.
• If other devices are functioning on the
same outlet, have the PJP-MC24 xed.
The LINK LED at the
LAN port does not
turn on.
The PC or hub is
turned off.
Confirm that the PJP-MC24 and the
devices connected to it are on. Even if
a device is connected correctly to the LAN
port, the LAN LED will not light unless the
connected device is turned on.
The PJP-MC24 is not connected
properly.
Remove all cords and then reinsert them,
making sure that they click into place.
The cable in use is
not a LAN cable.
• Make sure that you are not using an
ISDN cable (the connectors look exactly
the same, so it can be hard to tell the
difference).
• Try switching to a different LAN cable.
The PC LAN (network) card is
not functioning properly, or its
connection mode is not
compatible with the PJP-MC24.
• If other devices are not functioning
either, have the outlet or wiring xed.
• If other devices are functioning on the
same outlet, have the PJP-MC24 xed.
All LEDs are
lighted
Immediately after the power
has been turned on (normal
operation).
Wait for about three seconds for loading
to nish.
The PJP-MC24 is broken. Have the PJP-MC24 repaired.