Icom IC-7700

13-7
■ Fuse replacement
WhennoexternalDCoutputisavailablefrom[EXT
DC] and ACC connectors, the internal fuse may be
open. Replace the fuse in this case.
RWARNING!
DISCONNECT the AC power cable
from the AC outlet before removing the transceiver’s
cover.
q Remove the bottom cover as shown left.
w Remove the 8 screws from the shield cover of the
transceiver’s bottom side.
e Replace the open fuse with a new, properly rated
one (FGB 2 A) as shown at left.
r Return the inside cover and bottom cover and
screws to the original position.
■ Resetting the CPU
q Turn the main power switch on the rear panel ON.
 •MakesurethetransceiverpowerisstillOFF.
w While holding down
F-INP
ENT
and
MW
, push
POWER
to turn ON the power.
 •TheinternalCPUisreset.
 •TheCPUstart-uptakesapproximately5seconds.
 •ThetransceiverdisplaysitsinitialVFOfrequencies
when resetting is complete.
e Correct the set mode settings after resetting, if de-
sired.
NOTE: Resetting CLEARS all programmed con-
tents in memory channels and returns programmed
values in set mode to default values.
The transceiver cannot be reset in the standby mode.
If the transceiver is so, release the standby mode.
q Push
POWER
to turn ON the power.
w Hold down
POWER
for 1 second to display the
dialogbox.
e Rotate the main dial or push [q]
F-2
to select
“Shutdown.”
r Push
POWER
to turn OFF the power.
t Perform from steps w above.
MW
F-IMP
ENT
POWER
13
MAINTENANCE
ALL CLEAR