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Tuning Description
7. Tuning Description
7.1
Required Test Instruments
Radio communication test set (HP8921)
10V/3A regulated DC power supply
Digital voltmeter
Ammeter
7.2
Preparations
Place the board to be tested on the test fixture (please ensure good connection between each test point
and the fixture), and connect the board to a power supply with DC voltage of 6.0V.
7.3
Wired Clone
7.3.1
Instructions:
Connect two radios using a cloning cable. Simultaneously hold MONI key to power on the source
radio so that the wired clone mode will be entered after 2 seconds, and then press MONI key to
switch to factory wired clone mode (when the wired clone mode is entered, the user wired clone
mode is defaulted); then directly power on the target radio to enter the user mode.
The LED flashes red once after the source radio enters Wired Clone mode. Press PTT to clone data
to the target radio.
During communication, the LED of the source radio glows red, and the LED of the target radio glows
green. When the communication ends, green LED of the source radio glows and the green LED of
the target radio goes out, which indicates the preparation for another clone.
If any abnormal situation occurs during communication, the source radio will flash orange LED and
will stop communication for another cloning.
When cloning ends, the source radio goes back to the standby status. Press PTT again to begin
another cloning operation.
7.3.2
LED Indication during Cloning
Orange LED flashes: an error occurs during cloning. In this case, press any key other than the power
switch to turn it off.
Green LED glows: the cloning is done successfully.
1 set
1 set
1 set
1 set
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Service Manual
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