Maintenance - Icom IC-28H Instruction Manual

SECTION 7 MAINTENANCE
B OPERATING ENVIRONMENT
Ш ADJUSTMENTS
Ш MALFUNCTIONS
Ш CLEANING
Ш FUSES
®СНАМС!МС A FUSE
The 1C-28H is a sensitive electronic device which should not be
abused. Avoid using the 1С-28Н in excessively hot, humid or
dusty environments. Do not subject the transceiver to strong
vibrations or install it where water damage could result.
No internal adjustment of the transceiver is required since all variable
components have been set correctly by the factory. Misadjusting
certain components may damage the transceiver.
A variety of apparent problems can be solved by simply resetting the
internal microcomputer in the IC-28H. Refer to SECTION 5-8
RESETTING INTERNAL MICROCOMPUTER (CPU) for detailed
instructions.
The 1С-28Н will eventually require cleaning after sitting in your
ham shack for a period of time. Remove the three knobs from the
front panel and use a soft cloth with a mild, soapy solution. Do not
use strong chemicals or cleaning solvents. Wipe dry before replacing
the knobs on the panel.
Locate the cause for a blown fuse before replacing it and attempting
to operate the IC-28H again. The IC-28H uses 15 ampere fuses in
the DC power cable.
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