Fuse Replacement; Resetting The Cpu - Icom IC-7800 Instruction Manual

■ Fuse replacement

■ Resetting the CPU

[POWER]
ALL CLEAR
[MW] [F-INP•ENT]
When no external DC output is available from [EXT
DC] and ACC connectors, the internal fuse may be
damaged. 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 Replace the damaged fuse with new, rated one
(FGB 2 A) as shown at left.
e Return the bottom cover 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 [F-INP•
push [POWER] to turn power ON.
• The internal CPU is reset.
• The CPU start up and it 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.
13-7
13
MAINTENANCE
] and [MW],
ENT