Icom IC-2730E Instruction Manual page 87

■ Power protect function
The transceiver is equipped with a protection circuit for the
power amplifier. The circuit activates when the transceiver
continuously transmits at high power, and then the
temperature becomes extremely high.
In this case, the transceiver automatically reduces transmit
output power to low (approximately 5 W).
When the Power protect function activates, wait until the
transceiver's temperature returns to normal.
NOTE: When the power supply voltage is over 17.0 V, the
transceiver automatically displays "OVER V," and then
sounds a warning beep. In this case, the transceiver may
be damaged. If damage occurs, contact your nearest Icom
Dealer or Service Center.
■ Spurious signals
Spurious signals may occur at some frequencies. These
are created in the internal circuit and does not indicate a
transceiver malfunction.
You may avoid the spurious signals with the IF exchange
function. (p. 15)
■ Fuse replacement
A fuse is installed in each fuse holder of the supplied DC
power cable. If a fuse blows, or the transceiver stops
functioning, track down the source of the problem if
possible, repair it and then replace the damaged fuse with a
new rated one (FGB 125 V 15 A).
R WARNING! NEVER remove the fuse holders from the
DC power cable. USE only the specified fuses.
NOTE: Before replacing the fuse, be sure to disconnect
the DC cable from the power source.
Fuse Coding explanation
Fuse Coding: FUSE 32 V–250 V 15 A
Fuse Voltage Rating: 32 ~ 250 Volts
Fuse Current Rating: 15 Amperes
13
MAINTENANCE
13
82