New2001
86
9
MAINTENANCE
New2001
9
MAINTENANCE
■
Power protect function
The transceiver is equipped with a protection circuit for the
power amplifier. The circuit activates when the transceiver
continuously transmit at high power, and then 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 Voltage,” and then
sounds a warning beep. In this case, the transceiver may
be damaged, and 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 trans-
ceiver malfunction.
You may avoid the spurious signals with the Heterodyne func-
tion. (p. 73)
■
Fuse replacement
A fuse is installed in each fuse holder of the supplied DC
power cable. If a fuse blows, or the transceiver stops function-
ing, track down the source of the problem if possible, repair
it and then replace the damaged fuse with a new rated one
(FGB 20 A).
R
WARNING! NEVER
remove the fuse holders from the
DC power cable.
USE
only the applicable fuses.
NOTE:
Before replacing the fuse, be sure to disconnect the
DC cable from the power supply.
Summary of Contents for ID-5100A
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