Icom C RP1520, Инструкция по эксплуатации

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MAINTENANCE
6-1 REPEATER DISASSEMBLY
WARNING: DISCONNECT the AC power cable from The repeater may occasionally operate erroneously,
the repeater before performing any work e.g., when first applying power. This may be caused
on the repeater. externally by static electricity or other factors.
1) Turn the [POWER] switch OFF
If this problem occurs, turn the [POWER] switch OFF.
Wait a few minutes, and then turn ON power again. The
CPU has been reset.
2) Disconnect the AC power cable.
3) Unscrew 6 screws from rack mounting handles and
remove the rack mounting handles.
4) Unscrew 3 screws from each side of the front panel.
5) Unscrew 12 screws on top and bottom covers
6) Remove top and bottom covers.
6-2 FUSE REPLACEMENT
If the fuse blows or the repeater stops functioning, find
the source of the problem if possible, and replace the
damaged fuse with a new, rated fuse.
2 fuses are installed in the repeater:
-Rear panel AC line fuse holder 3A
-Rear panel DC line fuse holder
6-5 CPU
CPU resetting can be remotely controlled by a control
operator using DTMF signals. The DTMF signals must
be sent as follows:
1) Transmit signals twice as the preamble.
2) Transmit your 4-digit password
3) Transmit signals once and “9” signals twice as
the command and data for CPU resetting.
4) Transmit signals twice as the postamble.
The CPU has been reset. The operating frequency
adjustment
7 position) and ID function are not
reset.
CAUTION: CPU resetting clears all information. The
repeater is set to initial conditions.
Composition of the DTMF control signals for CPU resetting
6-3 BACKUP BATTERY
The repeater has a lithium backup battery installed. The
usual life of the battery is approximately 5 years. If the
battery is exhausted, transmitting and receiving normal-
ly but ID information in the RAM IC chip is not retained
each time the power is turned ON.
NOTE: Backup battery replacement should be done
by an authorized lcom Dealer or Service
6-4 CLEANING
@preamble
@password
@command
data
postamble
If the repeater 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 repeater.