7
Installation
Power connection
To minimize voltage drop and avoid blowing the vehicle’s fuses, connect the supplied
DC power cable directly to the battery terminals. Do not attempt to defeat or bypass the
DC cable fuse - it is there to protect you, your transceiver, and your vehicle’s electrical
system.
Operation of the FTM-7250DR from an AC line requires a power source capable of pro-
viding at least 20 Amps continuously at 13.8 Volts DC. The FP-1023 (USA market only)
and FP-1030A (USA/Asian market only) AC Power Supplies are available from your
Yaesu dealer to satisfy these requirements. Other well-regulated power supplies may be
used as well, if they meet the above voltage and current specifications.
Warning!
•
Never apply AC power to the power cable of the FTM-7250DR, nor DC voltage greater
than 15.8 Volts. When replacing the fuse, only use a 15 A fuse. Failure to observe these
safety precautions will void the Limited Warranty on this product.
•
Do not use a DC power supply cable other than the one that is supplied or specified.
•
Do not place anything on the DC power supply cable or step on it.
•
Do not use the DC power supply cable with the fuse holder cut off.
•
Do not reverse the polarity (positive and negative) when connecting the battery.
r
Connect the
RED
power cable lead to the
POSITIVE
(
+
) terminal, and the
BLACK
power cable lead to the
NEGATIVE
(
–
) terminal. If you need to extend the power cable,
use #12 AWG or larger insulated, stranded copper wire. Solder the splice connections
carefully, and wrap the connections thoroughly with insulating electrical tape.
Power cable
(DC 13.8 V)
Black
DC power supply
cable (supplied)
DC 12 V battery
Fuse holder
Red
Rear panel
Power cable
(DC 13.8 V)
Black Direct current
power supply
DC power supply
cable (supplied)
Fuse holder
Red
AC power outlet