Icom IC-3220A Instruction Manual page 41

W CPU resetting
The function display may occasionally display
erroneous information, (e.g., when first applying
power). This may be caused externally by static
electricity or other factors.
If this problem occurs, turn power OFF. Wait a few
seconds, then turn power ON again. If the problem
continues, perform the following procedure.
1) Turn power OFF.
2) While pushing [SET] and [MW], turn power ON.
e All segments appear on the function display, then
the CPU is reset.
i Cleaning
If the transceiver becomes dusty or dirty, wipe it clean
with a dry, soft cloth.
AVOID the use of chemical agents such as benzine or
alcohol, as they can damage the transceiver surfaces.
MAINTENANCE 13
W Fuse replacement
If the fuse blows or the receiver stops functioning, find
the source of the problem if possible, and replace the
damaged fuse with a new, rated fuse as shown in the
diagram below.
e Replacing a fuse
W Backup batteries
The IC-3220A/E/H and HM-56 are equipped with
separate lithium backup batteries for retaining memory
information.
The life of the lithium backup batteries is usually more
than 5 years. When the batteries are exhausted, the
transceiver operates normally but the CPU cannot
retain memory information.
NOTE: DO NOT attempt to replace the backup
batteries yourself. They can be replaced only by
an authorized Icom Dealer or Service Center.
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