Installation; Preliminary Inspection; Dc Power Connections - Yaesu FT-920 Operating Manual

Preliminary Inspection

Inspect the transceiver upon opening the packing
carton. Check that all controls and switches work
freely, and inspect the cabinet for any cosmetic dam-
age. Ensure that the accessory cable and fuses are
included.
If any damage is found, document it completely, and
contact the shipping company (or Dealer, if you pur-
chased it over-the-counter) right away. Save the pack-
ing materials in case you need to return the set for
service.

DC Power Connections

The FT-920 Transceiver is designed for operation
from 13.5 Volts DC, negative ground, with the DC
source being capable of providing 20 Amperes of
continuous current. For base station installations, we
recommend the matching Yaesu FP-1030A AC power
supply, which was specifically designed for compat-
ibility with your FT-920. You can, of course, use an-
other DC source, so long as it is well regulated and
meets the above voltage/current specifications. In any
case, be extremely careful to avoid reversed polarity
connections when installing your FT-920. See the
Caution box below.
Serious damage can result if improper supply voltage is applied to this transceiver. Your Limited Warranty
does not cover damage caused by the application of AC, reversed polarity DC, or DC outside the speci-
fied range of 13.5 V ±10%.
If you wish to use a power supply other than one of Yaesu manufacture, you must make certain that any
DC supply connector to the transceiver matches the FT-920 requirements. See the DC connector pinout
on the previous page. Other manufacturers have power supplies with a physically matched con-
nector that is wired differently; this may cause serious damage to the FT-920.
6
If you are connecting the FP-1030A to the FT-920,
before connecting power, check the label on the rear
of the power supply which indicates the AC line volt-
age range for which the power supply is currently set.
If your AC line voltage is outside this range, the input
voltage range will need to be re-configured. If you
have any questions about the voltage setting for your
power supply, consult with your dealer before pro-
ceeding, as improper connections could cause seri-
ous damage not covered by your warranty. See the
documentation accompanying your power supply for
details on the exact procedure required for power
supply AC voltage re-configuration.
Connection of the DC line must be made according
to the instructions below:
The R DC power lead connects to the Positive
ED
(+) DC terminal; and The B
connects to the Negative (-) DC terminal.
Make sure the FT-920's P
the DC cable into the 6-pin Molex jack on the rear
panel of the transceiver.
Caution
DC power lead
LACK
switch is off, and plug
OWER
FT-920 Operating Manual