Icom ID-4100A User Manual - Page 69

■ Fuse replacement, ■ Power protect function - service manual

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MAINTENANCE 9 ■■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 15 A). ■■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 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. R WARNING! ••NEVER remove the fuse holders from the DC power cable. USE only the applicable fuses. ••NEVER replace the fuse when the DC cable is connected to the power supply. NOTE: When the power supply voltage is high, the transceiver automatically displays "Over Voltage," and 9 then sounds a warning beep. In this case, the transceiver may be damaged. In that case, contact your nearest Icom Dealer or Service Center. BASIC MANUAL 54

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54
9
MAINTENANCE
9
BASIC MANUAL
■
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 15 A).
R
WARNING!
•
NEVER
remove the fuse holders from the DC power
cable.
USE
only the applicable fuses.
•
NEVER
replace the fuse when the DC cable is connected
to the power supply.
■
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 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 high, the
transceiver automatically displays “Over Voltage,” and
then sounds a warning beep. In this case, the transceiver
may be damaged. In that case, contact your nearest Icom
Dealer or Service Center.