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Supplying the power (continued)
Using an external DC power supply
1.
Connect the external DC power supply to the DC IN
socket on this unit.
2.
Turn “ON” the external DC power supply switch.
(Where the external DC power supply has a power
switch)
DC IN socket
External DC power supply
3.
Turn “ON” the POWER switch on this unit.
If an external DC power supply is used, then check the
ratings of the external DC power supply so that they
are compatible with those of this unit.
Check the pin arrangements of the DC output terminal
of the external DC power supply and those of the DC
IN socket of this unit so that their polarities are
correctly arranged.
If +12 V are supplied to the unit’s GND terminal by
mistake, this may cause fire or injury.
DC IN socket
1: GND
4: +12 V
<Notes>
•
Use a shield cable with a length of 2 m (6.56 feet) or
less for the DC cable. Use of cords any longer than
2 m (6.56 feet) may result in noise appearing on the
screen.
•
If the battery pack and an external DC power supply
are connected simultaneously, then the external DC
power supply will have priority.
If the external DC power supply is used, then the
battery pack may be fitted or removed.
•
If an external DC power supply is used, then make
sure that the external DC power supply is first turned
ON, then this unit is turned ON. If they are turned ON
in the reverse order, then this unit may malfunction,
because the output voltage of the external DC power
supply will gradually increase.
• Input voltage that above the specification is not
displayed accurately.