Maintenance; Fuse Replacement; Dc Power Cable Fuse Replacement; Circuitry Fuse Replacement - Icom IC-7200 Instruction Manual

7

MAINTENANCE

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Fuse replacement

If a fuse blows, or the transceiver stops functioning, try to find
the source of the problem, first repair the problem. Then re-
place the damaged fuse with a new, adequately rated fuse.
CAUTION:
Disconnect the DC power cable from
the transceiver when changing a fuse.
The IC-7200 has two fuses (DC power cable fuses) installed
for transceiver protection.
• DC power cable fuses ........................................ ATC 30 A
• Circuitry fuse ........................................................ ATC 5 A

Circuitry fuse replacement

D
13.8 V DC from the DC power cable is applied to
all units in the IC-7200, except the power amplifier,
through the circuitry fuse. This fuse is installed in the
PA unit.
q Remove the 11 screws, then remove the bottom
cover and the PA shielding plate.
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Memory backup

All of the CPU's memory is backed
up in an EEPROM (Electronically-
Erasable Programmable Read-Only
Memory). All data you set, such as
VFO, memory, Set mode contents,
and so on, are stored in this EEP-
ROM. There is no internal battery.
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DC power cable fuse replacement

D
Refer to the illustration to replace the DC power ca-
ble fuses.
ATC 30 A fuse
w Replace the circuitry fuse as shown.
ATC 5 A fuse
Front panel
e Replace the PA shielding plate, bottom cover and
screws to their original position.
Be sure the gasket is seated correctly, and does
not protrude from the PA shielding plate.
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Cleaning

If the transceiver becomes dusty or
dir ty, wipe it clean with a dry, soft
cloth.
DO NOT use harsh solvents such as
benzine or alcohol when cleaning, as
they will damage the transceiver sur-
faces.