Memory Backup - Icom IC-7000 Instruction Manual

14
MAINTENANCE
■ Fuse replacement
If a fuse blows or the transceiver stops functioning, try
to find the source of the problem, and replace the dam-
aged fuse with a new, adequately rated fuse.
CAUTION:
Disconnect the DC power cable from
the transceiver when changing a fuse.
The IC-7000 has three fuses (DC power cable fuses ×
2, circuitry fuse × 1) installed for transceiver protection.
• DC power cable fuses ........................... ATC20 30 A
• Circuitry fuse ............................................ ATC20 5 A
CIRCUITRY FUSE REPLACEMENT
The 13.8 V DC from the DC power cable is applied to
all units in the IC-7000, except for the power ampli-
fier, through the circuitry fuse. This fuse is installed in
the FRONT unit.
R WARNING
cover using your finger nails, this may result in in-
jury.

■ Memory backup

All of the CPU's memory is backed up by an EEP-
ROM (Electronically-Erasable Programmable Read-
Only Memory). All data you set, such as VFO,
memory, set mode contents, etc. are stored in this
EEPROM. There is no internal lithium battery.
■ Cleaning
If the transceiver becomes dusty or dirty,
wipe it clean with a dry, soft cloth.
137
:
NEVER attempt to remove fuse
Screw driver
Fuse cover
DC power cable fuse replacement
Fuse
AVOID the use of strong chemical solvents
such as thinner, benzine or alcohol to clean
the transceiver. These may damage the
transceiver's surfaces.