Fuse Replacement; Backup Battery Replacement - Icom IC-775 Maintenance Manual

FUSE REPLACEMENT
ZAWARNING: DISCONNECT the AC
power cable and wait a few minutes before
GZ, opening the top and bottom covers.
XQ GK
The transceiver has an external DC line fuse inde-
pendent of the AC line fuse. This fuse is installed
under the bottom cover.
If the fuse blows, try to find the source of the
problem, and replace the damaged fuse with a new,
rated fuse.
() Remove the top and bottom covers as described
on the first page.
@) Replace the damaged fuse with a new, rated fuse
as shown at right.
@) Replace the top and bottom covers.
2 A FGB fuse for 100 — 120 V versions
2 A high breaking capacity fuse for 220 — 240 V versions
BACKUP BATTERY REPLACEMENT
The transceiver has a lithium backup battery on the
inside of the front panel (MAIN unit) for retaining
operating conditions. The usual life of the backup
battery is approximately 5 years.
When the backup battery is exhausted, the trans-
ceiver transmits and receives normally but cannot
retain operating conditions except for memory chan-
nels.
Yj CAUTION: If the lithium battery is incorrectly
Y replaced, it could explode. Replace with a
Y CR-2032 or equivalent type.
( Remove the top and bottom covers as described
on the first page.
(2) Remove 8 screws from the front panel as shown
in figure 1 at right.
@) Remove the front panel.
@) Replace the backup battery as shown in figure 2
at right.
(6) Reassemble the front panel.
- Check that the [POWER] switch works smoothly.
© Replace the top and bottom covers.
Yy CAUTION: After replacing the lithiurn battery,
turn power ON and OFF, otherwise, the lithium
% battery will become exhausted rapidly.
Icom Inc.
6-9-16, Kamihigashi, Hirano-ku, Osaka 547, Japan
Top side Mics)
Bottom side :©
(® terminal is visible after installation.)
Count on us!
A-5340S-2EX Printed in Japan
Copyright © 1995 by Icom Inc.