Fuse Replacement; Resetting The Cpu - Icom IC-7700 Instruction Manual

■ Fuse replacement

■ Resetting the CPU

POWER
ALL CLEAR
F-IMP
MW
ENT
13-7
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.
q Turn the main power switch on the rear panel ON.
• Make sure the transceiver power is still OFF.
w While pushing and holding
push to turn power ON.
POWER
• The internal CPU is reset.
• The CPU start-up takes approx. 5 sec.
• 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.
13
MAINTENANCE
F-INP
and MW
ENT
,