Icom IC-7700 - Manual (Page 186)

13-7
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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.
WARNING: 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.
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Resetting the CPU
q Turn the main power switch on the rear panel ON.
• Make sure the transceiver power is still OFF.
w While pushing and holding and ,
push to turn power ON.
• 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.
POWER
MW F-INP
ENT
MW F-IMP
ENT POWER
13
MAINTENANCE
ALL CLEAR