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16
MAINTENANCE
■
Fuse replacement
When no external DC output is available from [EXT
DC] and ACC connectors, the internal fuse may be
open. Replace the fuse in this case.
R
WARNING! DISCONNECT
the AC power cable
from the AC outlet before removing the transceiv-
er’s cover.
CAUTION:
The transceiver weighs approximately
23.5 kg (52 lb). Always have two people available to
lift or invert over the transceiver.
q
Remove the bottom cover.
w
Replace the open fuse with a new, properly rated
one (TYPE 1202 FUSE 2 A) as shown at right.
e
Replace the bottom cover.
■
Clock backup battery replacement
The transceiver has a lithium backup battery (CR2032)
inside for clock and timer functions.
When the backup battery exhausted, the transceiver
transmits and receives normally but cannot retain the
current time.
R
WARNING! DISCONNECT
the AC power cable
from the AC outlet before removing the transceiv-
er’s cover.
q
Remove the top cover.
w
Replace the clock backup battery, located near the
front panel as illustrated at left.
• Make sure the battery polarity is correct.
e
Return the top cover to the original position.
r
Set the date and time in Time set screen.
For Users in California (U.S.A.)
This CR2032 Lithium Battery contains Perchlorate
Material—special handling may apply.
See http://www.dtsc.ca.gov/hazardouswaste/perchlorate