Fuse Replacement; Cpu Resetting; Cpu Backup Battery - Icom IC-725 Instruction Manual

25
8-2 FUSE REPLACEMENT
If the fuse blows or the transceiver stops functioning, find
the source of the problem if possible, and replace the
damaged fuse with a new, rated fuse.
CAUTION: Disconnect the DC power cable from the
. DC POWER SOCKET on the rear panel
when changing the fuse.
e DC power cable Ти5е5..................... 20A
ө Circuitry ћизе............... F.G.M.B.125V,4A
ФОС LINE FUSE REPLACEMENT
о CIRCUITRY FUSE REPLACEMENT
The fuse is installed in the PA UNIT. 12 V of DC
power are applied to the circuitry in the 1C-725
through the DC line fuse and the PA circuit.
See p. 24 before removing the 1C-725 covers.
8-3 CPU RESETTING
The FREOUENCY 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 the [POWER] switch OFF.
Wait a few seconds, and then turn ON power again. 1f the
problem continues, perform the following procedure:
NOTE: CPU resetting clears all memory information. ·
1) Turn the [POWER] switch OFF.
2) Push and hold the [FUNC] and [MW] switches, and
push the [POWER] switch IN.
e All information is displayed for a couple seconds then
14.1000 MHz is displayed.
LSBUSBCW-NAMFM MEMO
TUNE и Ји ΓΙΓΙΓΙ Ди ји VES A "ΕΙ
HIG. LIke cel SPOT LII
3) Release switches. The CPU is now reset.
8-4 CPU BACKUP BATTERY
The 1C-725 has a lithium backup battery for- retaining
memory information.
The usual life of the backup battery is approximately five
years. When the battery is exhausted, the transceiver
transmits and receives normally but the transceiver cannot
retain memory information.
NOTE: Backup battery replacement should be done by
an authorized Icom Dealer or Service Center.
8-5 CLEANING
If the transceiver becomes dusty or dirty, wipe it clean with
a dry, soft cloth. Avoid the use of strong cleaning agents
such as benzine or alcohol as they may damage the surfaces
of the transceiver.